Bump Version to v0.0.62

Remove empty fields from kustomize deployment

.VERSION

@@ -0,0 +1 @@
+version: v0.0.62

.dockerignore

@@ -0,0 +1 @@
+vendor

.gitignore

@@ -7,4 +7,5 @@ out/
 _gopath/
 .DS_Store
 .vscode
-vendor
+vendor
+dist

.goreleaser.yml

@@ -0,0 +1,26 @@
+builds:
+- env:
+  - CGO_ENABLED=0
+  goos:
+  - windows
+  - darwin
+  - linux
+  goarch:
+  - 386
+  - amd64
+  - arm
+  - arm64
+archives:
+- name_template: "{{ .ProjectName }}_v{{ .Version }}_{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}"
+snapshot:
+  name_template: "{{ .Tag }}-next"
+checksum:
+  name_template: "{{ .ProjectName }}_{{ .Version }}_checksums.txt"
+changelog:
+  sort: asc
+  filters:
+    exclude:
+    - '^docs:'
+    - '^test:'
+env_files:
+  github_token: /home/jenkins/.apitoken/hub

.version

@@ -1 +0,0 @@
-0.0.20

Jenkinsfile

@@ -1,10 +1,8 @@
 #!/usr/bin/groovy
-@Library('github.com/stakater/fabric8-pipeline-library@v2.10.4')
+@Library('github.com/stakater/stakater-pipeline-library@v2.16.24') _
 
-def dummy
-
-goBuildAndRelease {
-    chartRepositoryURL = 'https://chartmuseum.release.stakater.com'
+goBuildViaGoReleaser {
     publicChartRepositoryURL = 'https://stakater.github.io/stakater-charts'
     publicChartGitURL = 'git@github.com:stakater/stakater-charts.git'
+    toolsImage = 'stakater/pipeline-tools:v2.0.18'
 }

Makefile

@@ -13,14 +13,13 @@ VERSION=$(shell cat .version)
 BUILD=
 
 GOCMD = go
-GLIDECMD = glide
 GOFLAGS ?= $(GOFLAGS:)
 LDFLAGS =
 
 default: build test
 
 install:
-	"$(GLIDECMD)" install
+	"$(GOCMD)" mod download
 
 build:
 	"$(GOCMD)" build ${GOFLAGS} ${LDFLAGS} -o "${BINARY}"

README.md

@@ -13,16 +13,73 @@
 
 ## Problem
 
-We would like to watch if some change happens in `ConfigMap` and/or `Secret`; then perform a rolling upgrade on relevant `Deployment`, `Deamonset` and `Statefulset`
+We would like to watch if some change happens in `ConfigMap` and/or `Secret`; then perform a rolling upgrade on relevant `DeploymentConfig`, `Deployment`, `Daemonset` and `Statefulset`
 
 ## Solution
 
-Reloader can watch changes in `ConfigMap` and `Secret` and do rolling upgrades on Pods with their associated `Deployments`, `Deamonsets` and `Statefulsets`.
+Reloader can watch changes in `ConfigMap` and `Secret` and do rolling upgrades on Pods with their associated `DeploymentConfigs`, `Deployments`, `Daemonsets` and `Statefulsets`.
+
+## Compatibility
+
+Reloader is compatible with kubernetes >= 1.9
 
 ## How to use Reloader
 
+For a `Deployment` called `foo` have a `ConfigMap` called `foo-configmap` or `Secret` called `foo-secret` or both. Then add your annotation (by default `reloader.stakater.com/auto`) to main metadata of your `Deployment`
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    reloader.stakater.com/auto: "true"
+spec:
+  template: metadata:
+```
+
+This will discover deployments/daemonsets/statefulset automatically where `foo-configmap` or `foo-secret` is being used either via environment variable or from volume mount. And it will perform rolling upgrade on related pods when `foo-configmap` or `foo-secret`are updated.
+
+You can restrict this discovery to only `ConfigMap` or `Secret` objects that
+are tagged with a special annotation. To take advantage of that, annotate
+your deployment/daemonset/statefulset like this:
+
+```yaml
+kind: Deployment
+metadata:
+  annotations:
+    reloader.stakater.com/search: "true"
+spec:
+  template:
+```
+
+and Reloader will trigger the rolling upgrade upon modification of any
+`ConfigMap` or `Secret` annotated like this:
+
+```yaml
+kind: ConfigMap
+metadata:
+  annotations:
+    reloader.stakater.com/match: "true"
+data:
+  key: value
+```
+
+provided the secret/configmap is being used in an environment variable or a
+volume mount.
+
+Please note that `reloader.stakater.com/search` and
+`reloader.stakater.com/auto` do not work together. If you have the
+`reloader.stakater.com/auto: "true"` annotation on your deployment, then it
+will always restart upon a change in configmaps or secrets it uses, regardless
+of whether they have the `reloader.stakater.com/match: "true"` annotation or
+not.
+
+We can also specify a specific configmap or secret which would trigger rolling upgrade only upon change in our specified configmap or secret, this way, it will not trigger rolling upgrade upon changes in all configmaps or secrets used in a deployment, daemonset or statefulset.
+To do this either set the auto annotation to `"false"` (`reloader.stakater.com/auto: "false"`) or remove it altogether, and use annotations mentioned [here](#Configmap) or [here](#Secret)
+
 ### Configmap
 
+To perform rolling upgrade when change happens only on specific configmaps use below annotation.
+
 For a `Deployment` called `foo` have a `ConfigMap` called `foo-configmap`. Then add this annotation to main metadata of your `Deployment`
 
 ```yaml
@@ -31,8 +88,7 @@ metadata:
   annotations:
     configmap.reloader.stakater.com/reload: "foo-configmap"
 spec:
-  template:
-    metadata:
+  template: metadata:
 ```
 
 Use comma separated list to define multiple configmaps.
@@ -43,13 +99,14 @@ metadata:
   annotations:
     configmap.reloader.stakater.com/reload: "foo-configmap,bar-configmap,baz-configmap"
 spec:
-  template:
-    metadata:
+  template: metadata:
 ```
 
 ### Secret
 
-For a `Deployment` called `foo` have a `Secret` called `foo-secret`. Then add this annotation to main metadata of  your `Deployment`
+To perform rolling upgrade when change happens only on specific secrets use below annotation.
+
+For a `Deployment` called `foo` have a `Secret` called `foo-secret`. Then add this annotation to main metadata of your `Deployment`
 
 ```yaml
 kind: Deployment
@@ -57,8 +114,7 @@ metadata:
   annotations:
     secret.reloader.stakater.com/reload: "foo-secret"
 spec:
-  template:
-    metadata:
+  template: metadata:
 ```
 
 Use comma separated list to define multiple secrets.
@@ -69,17 +125,30 @@ metadata:
   annotations:
     secret.reloader.stakater.com/reload: "foo-secret,bar-secret,baz-secret"
 spec:
-  template:
-    metadata:
+  template: metadata:
 ```
 
+### NOTES
+
+- Reloader also supports [sealed-secrets](https://github.com/bitnami-labs/sealed-secrets). [Here](docs/Reloader-with-Sealed-Secrets.md) are the steps to use sealed-secrets with reloader.
+- `reloader.stakater.com/auto: "true"` will only reload the pod, if the configmap or secret is used (as a volume mount or as an env) in `DeploymentConfigs/Deployment/Daemonsets/Statefulsets`
+- `secret.reloader.stakater.com/reload` or `configmap.reloader.stakater.com/reload` annotation will reload the pod upon changes in specified configmap or secret, irrespective of the usage of configmap or secret.
+- you may override the auto annotation with the `--auto-annotation` flag
+- you may override the search annotation with the `--auto-search-annotation` flag
+  and the match annotation with the `--search-match-annotation` flag
+- you may override the configmap annotation with the `--configmap-annotation` flag
+- you may override the secret annotation with the `--secret-annotation` flag
+- you may want to prevent watching certain namespaces with the `--namespaces-to-ignore` flag
+- you may want to prevent watching certain resources with the `--resources-to-ignore` flag
+- you can configure logging in JSON format with the `--log-format=json` option
+
 ## Deploying to Kubernetes
 
 You can deploy Reloader by following methods:
 
 ### Vanilla Manifests
 
-You can apply vanilla manifests by running the following command
+You can apply vanilla manifests by changing `RELEASE-NAME` placeholder provided in manifest with a proper value and apply it by running the command given below:
 
 ```bash
 kubectl apply -f https://raw.githubusercontent.com/stakater/Reloader/master/deployments/kubernetes/reloader.yaml
@@ -87,11 +156,44 @@ kubectl apply -f https://raw.githubusercontent.com/stakater/Reloader/master/depl
 
 By default Reloader gets deployed in `default` namespace and watches changes `secrets` and `configmaps` in all namespaces.
 
+Reloader can be configured to ignore the resources `secrets` and `configmaps` by passing the following args (`spec.template.spec.containers.args`) to its container :
+
+| Args                             | Description          |
+| -------------------------------- | -------------------- |
+| --resources-to-ignore=configMaps | To ignore configMaps |
+| --resources-to-ignore=secrets    | To ignore secrets    |
+
+`Note`: At one time only one of these resource can be ignored, trying to do it will cause error in Reloader. Workaround for ignoring both resources is by scaling down the reloader pods to `0`.
+
+### Vanilla kustomize
+
+You can also apply the vanilla manifests by running the following command
+
+```bash
+kubectl apply -k https://github.com/stakater/Reloader/deployments/kubernetes
+```
+
+Similarly to vanilla manifests get deployed in `default` namespace and watches changes `secrets` and `configmaps` in all namespaces.
+
+### Kustomize
+
+You can write your own `kustomization.yaml` using ours as a 'base' and write patches to tweak the configuration.
+
+```yaml
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+bases:
+  - https://github.com/stakater/Reloader/deployments/kubernetes
+
+namespace: reloader
+```
+
 ### Helm Charts
 
 Alternatively if you have configured helm on your cluster, you can add reloader to helm from our public chart repository and deploy it via helm using below mentioned commands
 
- ```bash
+```bash
 helm repo add stakater https://stakater.github.io/stakater-charts
 
 helm repo update
@@ -99,18 +201,31 @@ helm repo update
 helm install stakater/reloader
 ```
 
-**Note:**  By default reloader watches in all namespaces. To watch in single namespace, please run following command. It will install reloader in `test` namespace which will only watch `Deployments`, `Deamonsets` and `Statefulsets` in `test` namespace.
+**Note:** By default reloader watches in all namespaces. To watch in single namespace, please run following command. It will install reloader in `test` namespace which will only watch `Deployments`, `Daemonsets` and `Statefulsets` in `test` namespace.
 
 ```bash
 helm install stakater/reloader --set reloader.watchGlobally=false --namespace test
 ```
 
+Reloader can be configured to ignore the resources `secrets` and `configmaps` by using the following parameters of `values.yaml` file:
+
+| Parameter        | Description                                                    | Type    |
+| ---------------- | -------------------------------------------------------------- | ------- |
+| ignoreSecrets    | To ignore secrets. Valid value are either `true` or `false`    | boolean |
+| ignoreConfigMaps | To ignore configMaps. Valid value are either `true` or `false` | boolean |
+
+`Note`: At one time only one of these resource can be ignored, trying to do it will cause error in helm template compilation.
+
+You can also set the log format of Reloader to json by setting `logFormat` to `json` in values.yaml and apply the chart
+
 ## Help
 
 ### Documentation
+
 You can find more documentation [here](docs/)
 
 ### Have a question?
+
 File a GitHub [issue](https://github.com/stakater/Reloader/issues), or send us an [email](mailto:stakater@gmail.com).
 
 ### Talk to us on Slack
@@ -130,11 +245,11 @@ Please use the [issue tracker](https://github.com/stakater/Reloader/issues) to r
 
 PRs are welcome. In general, we follow the "fork-and-pull" Git workflow.
 
- 1. **Fork** the repo on GitHub
- 2. **Clone** the project to your own machine
- 3. **Commit** changes to your own branch
- 4. **Push** your work back up to your fork
- 5. Submit a **Pull request** so that we can review your changes
+1.  **Fork** the repo on GitHub
+2.  **Clone** the project to your own machine
+3.  **Commit** changes to your own branch
+4.  **Push** your work back up to your fork
+5.  Submit a **Pull request** so that we can review your changes
 
 NOTE: Be sure to merge the latest from "upstream" before making a pull request!
 
@@ -153,8 +268,8 @@ Apache2 © [Stakater](http://stakater.com)
 See [our other projects][community]
 or contact us in case of professional services and queries on <hello@stakater.com>
 
-  [website]: http://stakater.com/
-  [community]: https://github.com/stakater/
+[website]: http://stakater.com/
+[community]: https://github.com/stakater/
 
 ## Acknowledgements
 

build/package/Dockerfile.build

@@ -1,18 +1,21 @@
-FROM stakater/go-glide:1.9.3
-MAINTAINER "Stakater Team"
-
-RUN apk update
+FROM golang:1.13.9-alpine
+LABEL maintainer "Stakater Team"
 
 RUN apk -v --update \
-    add git build-base && \
-    rm -rf /var/cache/apk/* && \
-    mkdir -p "$GOPATH/src/github.com/stakater/Reloader"
+    --no-cache \
+    add git build-base
 
-ADD . "$GOPATH/src/github.com/stakater/Reloader"
+WORKDIR "$GOPATH/src/github.com/stakater/Reloader"
 
-RUN cd "$GOPATH/src/github.com/stakater/Reloader" && \
-    glide update && \
-    CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a --installsuffix cgo --ldflags="-s" -o /Reloader
+COPY go.mod go.sum ./
+
+RUN go mod download
+
+COPY . .
+
+ENV CGO_ENABLED=0 GOOS=linux GOARCH=amd64
+
+RUN go build -a --installsuffix cgo --ldflags="-s" -o /Reloader
 
 COPY build/package/Dockerfile.run /
 

build/package/Dockerfile.run

@@ -1,8 +1,11 @@
-FROM alpine:3.4
-MAINTAINER "Stakater Team"
+FROM alpine:3.11
+LABEL maintainer "Stakater Team"
 
-RUN apk add --update ca-certificates
+RUN apk add --update --no-cache ca-certificates
 
 COPY Reloader /bin/Reloader
 
+# On alpine 'nobody' has uid 65534
+USER 65534
+
 ENTRYPOINT ["/bin/Reloader"]

deployments/kubernetes/chart/reloader/Chart.yaml

@@ -3,8 +3,8 @@
 apiVersion: v1
 name: reloader
 description: Reloader chart that runs on kubernetes
-version: 0.0.20
-appVersion: 0.0.20
+version: v0.0.62
+appVersion: v0.0.62
 keywords:
   - Reloader
   - kubernetes

deployments/kubernetes/chart/reloader/templates/_helpers.tpl

@@ -2,6 +2,7 @@
 {{/*
 Expand the name of the chart.
 */}}
+
 {{- define "reloader-name" -}}
 {{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" | lower -}}
 {{- end -}}
@@ -16,7 +17,7 @@ We truncate at 63 chars because some Kubernetes name fields are limited to this
 {{- end -}}
 
 {{- define "reloader-labels.chart" -}}
-app: {{ template "reloader-name" . }}
+app: {{ template "reloader-fullname" . }}
 chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
 release: {{ .Release.Name | quote }}
 heritage: {{ .Release.Service | quote }}
@@ -25,7 +26,7 @@ heritage: {{ .Release.Service | quote }}
 {{/*
 Create the name of the service account to use
 */}}
-{{- define "serviceAccountName" -}}
+{{- define "reloader-serviceAccountName" -}}
 {{- if .Values.reloader.serviceAccount.create -}}
     {{ default (include "reloader-fullname" .) .Values.reloader.serviceAccount.name }}
 {{- else -}}

deployments/kubernetes/chart/reloader/templates/clusterrole.yaml

@@ -1,4 +1,3 @@
----
 {{- if and .Values.reloader.watchGlobally (.Values.reloader.rbac.enabled) }}
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRole
@@ -11,20 +10,35 @@ metadata:
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 4 }}
 {{- end }}
-  name: {{ template "reloader-name" . }}-role
+  name: {{ template "reloader-fullname" . }}-role
   namespace: {{ .Release.Namespace }}
 rules:
   - apiGroups:
       - ""
-    resources:      
+    resources:
+{{- if .Values.reloader.ignoreSecrets }}{{- else }}
       - secrets
+{{- end }}
+{{- if .Values.reloader.ignoreConfigMaps }}{{- else }}
       - configmaps
+{{- end }}
     verbs:
       - list
       - get
       - watch
+{{- if or (.Capabilities.APIVersions.Has "apps.openshift.io/v1") (.Values.isOpenshift) }}
+  - apiGroups:
+      - "apps.openshift.io"
+      - ""
+    resources:
+      - deploymentconfigs
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+{{- end }}
   - apiGroups:
-      - "extensions"
       - "apps"
     resources:
       - deployments
@@ -35,4 +49,14 @@ rules:
       - get
       - update
       - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
 {{- end }}

deployments/kubernetes/chart/reloader/templates/clusterrolebinding.yaml

@@ -1,5 +1,4 @@
 {{- if and .Values.reloader.watchGlobally (.Values.reloader.rbac.enabled) }}
----
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRoleBinding
 metadata:
@@ -11,14 +10,14 @@ metadata:
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 4 }}
 {{- end }}
-  name: {{ template "reloader-name" . }}-role-binding
+  name: {{ template "reloader-fullname" . }}-role-binding
   namespace: {{ .Release.Namespace }}
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
-  name: {{ template "reloader-name" . }}-role
+  name: {{ template "reloader-fullname" . }}-role
 subjects:
   - kind: ServiceAccount
-    name: {{ template "serviceAccountName" . }}
+    name: {{ template "reloader-serviceAccountName" . }}
     namespace: {{ .Release.Namespace }}
 {{- end }}

deployments/kubernetes/chart/reloader/templates/deployment.yaml

@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
 {{- if .Values.reloader.deployment.annotations }}
@@ -13,19 +13,23 @@ metadata:
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 4 }}
 {{- end }}
-  name: {{ template "reloader-name" . }}
+  name: {{ template "reloader-fullname" . }}
 spec:
   replicas: 1
   revisionHistoryLimit: 2
   selector:
     matchLabels:
-      app: {{ template "reloader-name" . }}
+      app: {{ template "reloader-fullname" . }}
       release: {{ .Release.Name | quote }}
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 6 }}
 {{- end }}
   template:
     metadata:
+{{- if .Values.reloader.deployment.pod.annotations }}
+      annotations:
+{{ toYaml .Values.reloader.deployment.pod.annotations | indent 8 }}
+{{- end }}
       labels:
 {{ include "reloader-labels.chart" . | indent 8 }}
 {{- if .Values.reloader.deployment.labels }}
@@ -35,8 +39,24 @@ spec:
 {{ toYaml .Values.reloader.matchLabels | indent 8 }}
 {{- end }}
     spec:
+      {{- if .Values.reloader.deployment.nodeSelector }}
+      nodeSelector:
+{{ toYaml .Values.reloader.deployment.nodeSelector | indent 8 }}
+      {{- end }}
+      {{- if .Values.reloader.deployment.affinity }}
+      affinity:
+{{ toYaml .Values.reloader.deployment.affinity | indent 8 }}
+      {{- end }}
+      {{- if .Values.reloader.deployment.tolerations }}
+      tolerations:
+{{ toYaml .Values.reloader.deployment.tolerations | indent 8 }}
+      {{- end }}
       containers:
-      - env:
+      - image: "{{ .Values.reloader.deployment.image.name }}:{{ .Values.reloader.deployment.image.tag }}"
+        imagePullPolicy: {{ .Values.reloader.deployment.image.pullPolicy }}
+        name: {{ template "reloader-fullname" . }}
+      {{- if or (.Values.reloader.deployment.env.open) (.Values.reloader.deployment.env.secret) (.Values.reloader.deployment.env.field) }}
+        env:
       {{- range $name, $value := .Values.reloader.deployment.env.open }}
       {{- if not (empty $value) }}
         - name: {{ $name | quote }}
@@ -67,7 +87,49 @@ spec:
             fieldRef:
               fieldPath: metadata.namespace
       {{- end }}
-        image: "{{ .Values.reloader.deployment.image.name }}:{{ .Values.reloader.deployment.image.tag }}"
-        imagePullPolicy: {{ .Values.reloader.deployment.image.pullPolicy }}
-        name: {{ template "reloader-name" . }}
-      serviceAccountName: {{ template "serviceAccountName" . }}
+      {{- end }}
+      {{- if eq .Values.reloader.readOnlyRootFileSystem true }}
+        volumeMounts:
+          - mountPath: /tmp/
+            name: tmp-volume
+      {{- end }}
+      {{- if or (.Values.reloader.logFormat) (.Values.reloader.ignoreSecrets) (eq .Values.reloader.ignoreConfigMaps true) (.Values.reloader.custom_annotations) }}
+        args:
+          {{- if .Values.reloader.logFormat }}
+          - "--log-format={{ .Values.reloader.logFormat }}"
+          {{- end }}
+          {{- if .Values.reloader.ignoreSecrets }}
+          - "--resources-to-ignore=secrets"
+          {{- end }}
+          {{- if eq .Values.reloader.ignoreConfigMaps true }}
+          - "--resources-to-ignore=configMaps"
+          {{- end }}
+
+          {{- if .Values.reloader.custom_annotations }}
+            {{- if .Values.reloader.custom_annotations.configmap }}
+            - "--configmap-annotation"
+            - "{{ .Values.reloader.custom_annotations.configmap }}"
+            {{- end }}
+            {{- if .Values.reloader.custom_annotations.secret }}
+            - "--secret-annotation"
+            - "{{ .Values.reloader.custom_annotations.secret }}"
+            {{- end }}
+            {{- if .Values.reloader.custom_annotations.auto }}
+            - "--auto-annotation"
+            - "{{ .Values.reloader.custom_annotations.auto }}"
+            {{- end }}
+          {{- end }}
+      {{- end }}
+      {{- if .Values.reloader.deployment.resources }}
+        resources:
+{{ toYaml .Values.reloader.deployment.resources | indent 10 }}
+      {{- end }}
+{{- if .Values.reloader.deployment.securityContext }}
+      securityContext: {{ toYaml .Values.reloader.deployment.securityContext | nindent 8 }}
+{{- end }}
+      serviceAccountName: {{ template "reloader-serviceAccountName" . }}
+    {{- if eq .Values.reloader.readOnlyRootFileSystem true }}
+      volumes:
+        - emptyDir: {}
+          name: tmp-volume
+    {{- end }}

deployments/kubernetes/chart/reloader/templates/role.yaml

@@ -10,20 +10,35 @@ metadata:
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 4 }}
 {{- end }}
-  name: {{ template "reloader-name" . }}-role
+  name: {{ template "reloader-fullname" . }}-role
   namespace: {{ .Release.Namespace }}
 rules:
   - apiGroups:
       - ""
-    resources:      
+    resources:
+{{- if .Values.reloader.ignoreSecrets }}{{- else }}
       - secrets
+{{- end }}
+{{- if .Values.reloader.ignoreConfigMaps }}{{- else }}
       - configmaps
+{{- end }}
     verbs:
       - list
       - get
       - watch
+{{- if or (.Capabilities.APIVersions.Has "apps.openshift.io/v1") (.Values.reloader.isOpenshift) }}
+  - apiGroups:
+      - "apps.openshift.io"
+      - ""
+    resources:
+      - deploymentconfigs
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+{{- end }}
   - apiGroups:
-      - "extensions"
       - "apps"
     resources:
       - deployments
@@ -34,4 +49,14 @@ rules:
       - get
       - update
       - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
 {{- end }}

deployments/kubernetes/chart/reloader/templates/rolebinding.yaml

@@ -1,5 +1,4 @@
 {{- if and (not (.Values.reloader.watchGlobally)) (.Values.reloader.rbac.enabled) }}
----
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: RoleBinding
 metadata:
@@ -11,14 +10,14 @@ metadata:
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 4 }}
 {{- end }}
-  name: {{ template "reloader-name" . }}-role-binding
+  name: {{ template "reloader-fullname" . }}-role-binding
   namespace: {{ .Release.Namespace }}
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: Role
-  name: {{ template "reloader-name" . }}-role
+  name: {{ template "reloader-fullname" . }}-role
 subjects:
   - kind: ServiceAccount
-    name: {{ template "serviceAccountName" . }}
+    name: {{ template "reloader-serviceAccountName" . }}
     namespace: {{ .Release.Namespace }}
 {{- end }}

deployments/kubernetes/chart/reloader/templates/service.yaml

@@ -0,0 +1,25 @@
+{{- if .Values.reloader.service }}
+apiVersion: v1
+kind: Service
+metadata:
+{{- if .Values.reloader.service.annotations }}
+  annotations:
+{{ toYaml .Values.reloader.service.annotations | indent 4 }}
+{{- end }}
+  labels:
+{{ include "reloader-labels.chart" . | indent 4 }}
+{{- if .Values.reloader.service.labels }}
+{{ toYaml .Values.reloader.service.labels | indent 4 }}
+{{- end }}
+  name: {{ template "reloader-fullname" . }}
+spec:
+  selector:
+{{- if .Values.reloader.deployment.labels }}
+{{ toYaml .Values.reloader.deployment.labels | indent 4 }}
+{{- end }}
+{{- if .Values.reloader.matchLabels }}
+{{ toYaml .Values.reloader.matchLabels | indent 4 }}
+{{- end }}
+  ports:
+{{ toYaml .Values.reloader.service.ports | indent 4 }}
+{{- end }}

deployments/kubernetes/chart/reloader/templates/serviceaccount.yaml

@@ -1,6 +1,9 @@
 {{- if .Values.reloader.serviceAccount.create }}
 apiVersion: v1
 kind: ServiceAccount
+{{- if .Values.global.imagePullSecrets }}
+imagePullSecrets: {{ toYaml .Values.global.imagePullSecrets | nindent 2 }}
+{{- end }}
 metadata:
   labels:
 {{ include "reloader-labels.chart" . | indent 4 }}
@@ -10,5 +13,5 @@ metadata:
 {{- if .Values.reloader.matchLabels }}
 {{ toYaml .Values.reloader.matchLabels | indent 4 }}
 {{- end }}
-  name: {{ template "serviceAccountName" . }}
+  name: {{ template "reloader-serviceAccountName" . }}
 {{- end }}

deployments/kubernetes/chart/reloader/values.yaml

@@ -1,20 +1,57 @@
 # Generated from deployments/kubernetes/templates/chart/values.yaml.tmpl
+global:
+  ## Reference to one or more secrets to be used when pulling images
+  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+  ##
+  imagePullSecrets: []
 
 kubernetes:
   host: https://kubernetes.default
 
 reloader:
+  isOpenshift: false
+  ignoreSecrets: false
+  ignoreConfigMaps: false
+  logFormat: "" #json
   watchGlobally: true
+  # Set to true if you have a pod security policy that enforces readOnlyRootFilesystem
+  readOnlyRootFileSystem: false
   matchLabels: {}
   deployment:
+    nodeSelector:
+    # cloud.google.com/gke-nodepool: default-pool
+
+    # An affinity stanza to be applied to the Deployment.
+    # Example:
+    #   affinity:
+    #     nodeAffinity:
+    #       requiredDuringSchedulingIgnoredDuringExecution:
+    #         nodeSelectorTerms:
+    #         - matchExpressions:
+    #           - key: "node-role.kubernetes.io/infra-worker"
+    #             operator: "Exists"
+    affinity: {}
+
+    securityContext:
+      runAsNonRoot: true
+      runAsUser: 65534
+
+    # A list of tolerations to be applied to the Deployment.
+    # Example:
+    #   tolerations:
+    #   - key: "node-role.kubernetes.io/infra-worker"
+    #     operator: "Exists"
+    #     effect: "NoSchedule"
+    tolerations: []
+
     annotations: {}
     labels:
       provider: stakater
       group: com.stakater.platform
-      version: 0.0.20
+      version: v0.0.62
     image:
       name: stakater/reloader
-      tag: "0.0.20"
+      tag: "v0.0.62"
       pullPolicy: IfNotPresent
     # Support for extra environment variables.
     env:
@@ -24,6 +61,29 @@ reloader:
       secret:
       # field supports Key value pair as environment variables. It gets the values from other fields of pod.
       field:
+
+    # Specify resource requests/limits for the deployment.
+    # Example:
+    # resources:
+    #   limits:
+    #     cpu: "100m"
+    #     memory: "512Mi"
+    #   requests:
+    #     cpu: "10m"
+    #     memory: "128Mi"
+    resources: {}
+    pod:
+      annotations: {}
+
+  service: {}
+    # labels: {}
+    # annotations: {}
+    # ports:
+    # - port: 9090
+    #   name: http
+    #   protocol: TCP
+    #   targetPort: 9090
+
   rbac:
     enabled: true
     labels: {}
@@ -34,4 +94,10 @@ reloader:
     labels: {}
     # The name of the ServiceAccount to use.
     # If not set and create is true, a name is generated using the fullname template
-    name: reloader
+    name: 
+  # Optional flags to pass to the Reloader entrypoint
+  # Example:
+  #   custom_annotations:
+  #     configmap: "my.company.com/configmap"
+  #     secret: "my.company.com/secret"
+  custom_annotations: {}

deployments/kubernetes/kustomization.yaml

@@ -0,0 +1,10 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+resources:
+  - manifests/clusterrole.yaml
+  - manifests/clusterrolebinding.yaml
+  - manifests/role.yaml
+  - manifests/rolebinding.yaml
+  - manifests/serviceaccount.yaml
+  - manifests/deployment.yaml

deployments/kubernetes/manifests/clusterrole.yaml

@@ -1,20 +1,20 @@
 ---
 # Source: reloader/templates/clusterrole.yaml
----
+
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRole
 metadata:
   labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
     heritage: "Tiller"
-  name: reloader-role
+  name: reloader-reloader-role
   namespace: default
 rules:
   - apiGroups:
       - ""
-    resources:      
+    resources:
       - secrets
       - configmaps
     verbs:
@@ -22,7 +22,6 @@ rules:
       - get
       - watch
   - apiGroups:
-      - "extensions"
       - "apps"
     resources:
       - deployments
@@ -33,4 +32,14 @@ rules:
       - get
       - update
       - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
 

deployments/kubernetes/manifests/clusterrolebinding.yaml

@@ -1,23 +1,22 @@
 ---
 # Source: reloader/templates/clusterrolebinding.yaml
 
----
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRoleBinding
 metadata:
   labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
     heritage: "Tiller"
-  name: reloader-role-binding
+  name: reloader-reloader-role-binding
   namespace: default
 roleRef:
   apiGroup: rbac.authorization.k8s.io
   kind: ClusterRole
-  name: reloader-role
+  name: reloader-reloader-role
 subjects:
   - kind: ServiceAccount
-    name: reloader
+    name: reloader-reloader
     namespace: default
 

deployments/kubernetes/manifests/deployment.yaml

@@ -1,41 +1,44 @@
 ---
 # Source: reloader/templates/deployment.yaml
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
     heritage: "Tiller"
     group: com.stakater.platform
     provider: stakater
-    version: 0.0.20
+    version: v0.0.62
     
-  name: reloader
+  name: reloader-reloader
 spec:
   replicas: 1
   revisionHistoryLimit: 2
   selector:
     matchLabels:
-      app: reloader
-      release: "RELEASE-NAME"
+      app: reloader-reloader
+      release: "reloader"
   template:
     metadata:
       labels:
-        app: reloader
-        chart: "reloader-0.0.20"
-        release: "RELEASE-NAME"
+        app: reloader-reloader
+        chart: "reloader-v0.0.62"
+        release: "reloader"
         heritage: "Tiller"
         group: com.stakater.platform
         provider: stakater
-        version: 0.0.20
+        version: v0.0.62
         
     spec:
       containers:
-      - env:
-        image: "stakater/reloader:0.0.20"
+      - image: "stakater/reloader:v0.0.62"
         imagePullPolicy: IfNotPresent
-        name: reloader
-      serviceAccountName: reloader
+        name: reloader-reloader
+      securityContext: 
+        runAsNonRoot: true
+        runAsUser: 65534
+        
+      serviceAccountName: reloader-reloader
 

deployments/kubernetes/manifests/rbac.yaml

@@ -1,73 +0,0 @@
----
-# Source: reloader/templates/rbac.yaml
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.18
-    chart: "reloader-0.0.18"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: ClusterRole
-metadata:
-  labels: 
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.18
-    chart: "reloader-0.0.18"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role
-  namespace: default
-rules:
-  - apiGroups:
-      - ""
-    resources:      
-      - secrets
-      - configmaps
-    verbs:
-      - list
-      - get
-      - watch
-  - apiGroups:
-      - ""
-      - "extensions"
-      - "apps"
-    resources:
-      - deployments
-      - daemonsets
-      - statefulsets
-    verbs:
-      - list
-      - get
-      - update
-      - patch
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: ClusterRoleBinding
-metadata:
-  labels: 
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.18
-    chart: "reloader-0.0.18"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role-binding
-  namespace: default
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: reloader-role
-subjects:
-  - kind: ServiceAccount
-    name: reloader
-    namespace: default

deployments/kubernetes/manifests/service.yaml

@@ -0,0 +1,3 @@
+---
+# Source: reloader/templates/service.yaml
+

deployments/kubernetes/manifests/serviceaccount.yaml

@@ -5,9 +5,9 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
     heritage: "Tiller"
-  name: reloader
+  name: reloader-reloader
 

deployments/kubernetes/reloader.yaml

@@ -1,65 +1,20 @@
----
-# Source: reloader/templates/role.yaml
-
-
----
-# Source: reloader/templates/deployment.yaml
-apiVersion: extensions/v1beta1
-kind: Deployment
-metadata:
-  labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.20
-    
-  name: reloader
-spec:
-  replicas: 1
-  revisionHistoryLimit: 2
-  selector:
-    matchLabels:
-      app: reloader
-      release: "RELEASE-NAME"
-  template:
-    metadata:
-      labels:
-        app: reloader
-        chart: "reloader-0.0.20"
-        release: "RELEASE-NAME"
-        heritage: "Tiller"
-        group: com.stakater.platform
-        provider: stakater
-        version: 0.0.20
-        
-    spec:
-      containers:
-      - env:
-        image: "stakater/reloader:0.0.20"
-        imagePullPolicy: IfNotPresent
-        name: reloader
-      serviceAccountName: reloader
-
 ---
 # Source: reloader/templates/clusterrole.yaml
----
+
 apiVersion: rbac.authorization.k8s.io/v1beta1
 kind: ClusterRole
 metadata:
   labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
     heritage: "Tiller"
-  name: reloader-role
+  name: reloader-reloader-role
   namespace: default
 rules:
   - apiGroups:
       - ""
-    resources:      
+    resources:
       - secrets
       - configmaps
     verbs:
@@ -67,7 +22,6 @@ rules:
       - get
       - watch
   - apiGroups:
-      - "extensions"
       - "apps"
     resources:
       - deployments
@@ -78,106 +32,93 @@ rules:
       - get
       - update
       - patch
+  - apiGroups:
+      - "extensions"
+    resources:
+      - deployments
+      - daemonsets
+    verbs:
+      - list
+      - get
+      - update
+      - patch
+
+---
+# Source: reloader/templates/clusterrolebinding.yaml
+
+apiVersion: rbac.authorization.k8s.io/v1beta1
+kind: ClusterRoleBinding
+metadata:
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
+    heritage: "Tiller"
+  name: reloader-reloader-role-binding
+  namespace: default
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: reloader-reloader-role
+subjects:
+  - kind: ServiceAccount
+    name: reloader-reloader
+    namespace: default
+
+---
+# Source: reloader/templates/deployment.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
+    heritage: "Tiller"
+    group: com.stakater.platform
+    provider: stakater
+    version: v0.0.62
+    
+  name: reloader-reloader
+spec:
+  replicas: 1
+  revisionHistoryLimit: 2
+  selector:
+    matchLabels:
+      app: reloader-reloader
+      release: "reloader"
+  template:
+    metadata:
+      labels:
+        app: reloader-reloader
+        chart: "reloader-v0.0.62"
+        release: "reloader"
+        heritage: "Tiller"
+        group: com.stakater.platform
+        provider: stakater
+        version: v0.0.62
+        
+    spec:
+      containers:
+      - image: "stakater/reloader:v0.0.62"
+        imagePullPolicy: IfNotPresent
+        name: reloader-reloader
+      securityContext: 
+        runAsNonRoot: true
+        runAsUser: 65534
+        
+      serviceAccountName: reloader-reloader
+
+---
+# Source: reloader/templates/role.yaml
+
 
 ---
 # Source: reloader/templates/rolebinding.yaml
 
 
 ---
-# Source: reloader/templates/rbac.yaml
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.18
-    chart: "reloader-0.0.18"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: ClusterRole
-metadata:
-  labels: 
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.18
-    chart: "reloader-0.0.18"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role
-  namespace: default
-rules:
-  - apiGroups:
-      - ""
-    resources:      
-      - secrets
-      - configmaps
-    verbs:
-      - list
-      - get
-      - watch
-  - apiGroups:
-      - ""
-      - "extensions"
-      - "apps"
-    resources:
-      - deployments
-      - daemonsets
-      - statefulsets
-    verbs:
-      - list
-      - get
-      - update
-      - patch
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: ClusterRoleBinding
-metadata:
-  labels: 
-    app: reloader
-    group: com.stakater.platform
-    provider: stakater
-    version: 0.0.18
-    chart: "reloader-0.0.18"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role-binding
-  namespace: default
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: reloader-role
-subjects:
-  - kind: ServiceAccount
-    name: reloader
-    namespace: default
----
-# Source: reloader/templates/clusterrolebinding.yaml
-
----
-apiVersion: rbac.authorization.k8s.io/v1beta1
-kind: ClusterRoleBinding
-metadata:
-  labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
-    heritage: "Tiller"
-  name: reloader-role-binding
-  namespace: default
-roleRef:
-  apiGroup: rbac.authorization.k8s.io
-  kind: ClusterRole
-  name: reloader-role
-subjects:
-  - kind: ServiceAccount
-    name: reloader
-    namespace: default
+# Source: reloader/templates/service.yaml
 
 ---
 # Source: reloader/templates/serviceaccount.yaml
@@ -186,9 +127,9 @@ apiVersion: v1
 kind: ServiceAccount
 metadata:
   labels:
-    app: reloader
-    chart: "reloader-0.0.20"
-    release: "RELEASE-NAME"
+    app: reloader-reloader
+    chart: "reloader-v0.0.62"
+    release: "reloader"
     heritage: "Tiller"
-  name: reloader
+  name: reloader-reloader
 

deployments/kubernetes/templates/chart/values.yaml.tmpl

@@ -1,12 +1,49 @@
 # Generated from deployments/kubernetes/templates/chart/values.yaml.tmpl
+global:
+  ## Reference to one or more secrets to be used when pulling images
+  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
+  ##
+  imagePullSecrets: []
 
 kubernetes:
   host: https://kubernetes.default
 
 reloader:
+  isOpenshift: false
+  ignoreSecrets: false
+  ignoreConfigMaps: false
+  logFormat: "" #json
   watchGlobally: true
+  # Set to true if you have a pod security policy that enforces readOnlyRootFilesystem
+  readOnlyRootFileSystem: false
   matchLabels: {}
   deployment:
+    nodeSelector:
+    # cloud.google.com/gke-nodepool: default-pool
+
+    # An affinity stanza to be applied to the Deployment.
+    # Example:
+    #   affinity:
+    #     nodeAffinity:
+    #       requiredDuringSchedulingIgnoredDuringExecution:
+    #         nodeSelectorTerms:
+    #         - matchExpressions:
+    #           - key: "node-role.kubernetes.io/infra-worker"
+    #             operator: "Exists"
+    affinity: {}
+
+    securityContext:
+      runAsNonRoot: true
+      runAsUser: 65534
+
+    # A list of tolerations to be applied to the Deployment.
+    # Example:
+    #   tolerations:
+    #   - key: "node-role.kubernetes.io/infra-worker"
+    #     operator: "Exists"
+    #     effect: "NoSchedule"
+    tolerations: []
+
     annotations: {}
     labels:
       provider: stakater
@@ -24,6 +61,29 @@ reloader:
       secret:
       # field supports Key value pair as environment variables. It gets the values from other fields of pod.
       field:
+
+    # Specify resource requests/limits for the deployment.
+    # Example:
+    # resources:
+    #   limits:
+    #     cpu: "100m"
+    #     memory: "512Mi"
+    #   requests:
+    #     cpu: "10m"
+    #     memory: "128Mi"
+    resources: {}
+    pod:
+      annotations: {}
+
+  service: {}
+    # labels: {}
+    # annotations: {}
+    # ports:
+    # - port: 9090
+    #   name: http
+    #   protocol: TCP
+    #   targetPort: 9090
+
   rbac:
     enabled: true
     labels: {}
@@ -34,4 +94,10 @@ reloader:
     labels: {}
     # The name of the ServiceAccount to use.
     # If not set and create is true, a name is generated using the fullname template
-    name: reloader
+    name: 
+  # Optional flags to pass to the Reloader entrypoint
+  # Example:
+  #   custom_annotations:
+  #     configmap: "my.company.com/configmap"
+  #     secret: "my.company.com/secret"
+  custom_annotations: {}

docs/How-it-works.md

@@ -1,6 +1,6 @@
 # How it works?
 
-Reloader watches for `ConfigMap` and `Secret` and detects if there are changes in data of these objects. After change detection reloader performs rolling upgrade on relevant Pods via associated `Deployment`, `Deamonset` and `Statefulset`.
+Reloader watches for `ConfigMap` and `Secret` and detects if there are changes in data of these objects. After change detection reloader performs rolling upgrade on relevant Pods via associated `Deployment`, `Daemonset` and `Statefulset`.
 
 ## How change detection works
 
@@ -17,23 +17,25 @@ The annotation value is comma separated list of `configmaps` or `secrets`. If a
 
 ### Annotation for Configmap
 
-For a `Deployment` called `foo` have a `ConfigMap` called `foo`. Then add this annotation to your `Deployment`
+For a `Deployment` called `foo` have a `ConfigMap` called `foo`. Then add this annotation* to your `Deployment`
 
 ```yaml
 metadata:
   annotations:
     configmap.reloader.stakater.com/reload: "foo"
 ```
+<small>*the default annotation can be changed with the `--configmap-annotation` flag</small>
 
 ### Annotation for Secret
 
-For a `Deployment` called `foo` have a `Secret` called `foo`. Then add this annotation to your `Deployment`
+For a `Deployment` called `foo` have a `Secret` called `foo`. Then add this annotation* to your `Deployment`
 
 ```yaml
 metadata:
   annotations:
     secret.reloader.stakater.com/reload: "foo"
 ```
+<small>*the default annotation can be changed with the `--secret-annotation` flag</small>
 
 Above mentioned annotation are also work for `Daemonsets` and `Statefulsets`
 

docs/Reloader-vs-ConfigmapController.md

@@ -8,4 +8,5 @@ Reloader is inspired from [Configmapcontroller](https://github.com/fabric8io/con
 | Reloader can watch both `secrets` and `configmaps`.                                                                                                                                                                                                                                                    | ConfigmapController can only watch changes in `configmaps`. It cannot detect changes in other resources like `secrets`.                                                                                                                                        |
 | Reloader can perform rolling upgrades on `deployments` as well as on `statefulsets` and `daemonsets`                                                                                                                                                                                                   | ConfigmapController can only perform rolling upgrades on `deployments`. It currently does not support rolling upgrades on `statefulsets` and `daemonsets`                                                                                                          |
 | Reloader provides both unit test cases and end to end integration test cases for future updates. So one can make sure that new changes do not break any old functionality.                                                                                                                                               | Currently there are not any unit test cases or end to end integration test cases in configmap controller. It add difficulties for any additional updates in configmap controller and one can not know for sure whether new changes breaks any old functionality or not. |
-| Reloader uses SHA1 to encode the change in configmap or secret. It then saves the SHA1 value in `STAKATER_FOO_CONFIGMAP` or `STAKATER_FOO_SECRET` environment variable depending upon where the change has happened. The use of SHA1 provides a concise 40 characters encoded value that is very less pron to collision. | Configmap controller uses `FABRICB_FOO_REVISION` environment variable to store any change in configmap controller. It does not encode it or convert it in suitable hash value to avoid data pollution in deployment.                                               |
+| Reloader uses SHA1 to encode the change in configmap or secret. It then saves the SHA1 value in `STAKATER_FOO_CONFIGMAP` or `STAKATER_FOO_SECRET` environment variable depending upon where the change has happened. The use of SHA1 provides a concise 40 characters encoded value that is very less pron to collision. | Configmap controller uses `FABRICB_FOO_REVISION` environment variable to store any change in configmap controller. It does not encode it or convert it in suitable hash value to avoid data pollution in deployment.                                               |
+| Reloader allows you to customize your own annotation (for both Secrets and Configmaps) using command line flags | Configmap controller restricts you to only their provided annotation |

docs/Reloader-vs-k8s-trigger-controller.md

@@ -25,4 +25,16 @@ Reloader supports deployment rollout as well as daemonsets and statefulsets roll
 k8s-trigger-controller stores the hash value in an annotation `trigger.k8s.io/[secret|configMap]-NAME-last-hash`
 
 #### Reloader:
-Reloader stores the hash value in an environment variable `STAKATER_NAME_[SECRET|CONFIGMAP]`
+Reloader stores the hash value in an environment variable `STAKATER_NAME_[SECRET|CONFIGMAP]`
+
+### Customization
+
+#### k8s-trigger-controller:
+k8s-trigger-controller restricts you to using the `trigger.k8s.io/[secret-configMap]-NAME-last-hash` annotation
+
+#### Reloader:
+Reloader allows you to customize the annotation to fit your needs with command line flags:
+
+- `--auto-annotation <annotation>`
+- `--configmap-annotation <annotation>`
+- `--secret-annotation <annotation>`

docs/Reloader-with-Sealed-Secrets.md

@@ -0,0 +1,11 @@
+Below are the steps to use reloader with Sealed Secrets.
+1. Download and install the kubeseal client from [here](https://github.com/bitnami-labs/sealed-secrets).
+2. Install the controller for sealed secrets
+3. Fetch the encryption certificate
+4. Encrypt the secret.
+5. Apply the secret.
+7. Install the tool which uses that sealed secret.
+8. Install Reloader.
+9. Once everything is setup, update the original secret at client and encrypt it with kubeseal to see reloader working.
+10. Apply the updated sealed secret.
+11. Reloader will restart the pod to use that updated secret.

docs/Verify-Reloader-Working.md

@@ -1,6 +1,6 @@
 # Verify Reloader's Working
 
-Reloader's working can be verified by two ways.
+Reloader's working can be verified by three ways.
 
 ## Verify from logs
 
@@ -49,3 +49,13 @@ After a change in `secret` or `configmap`. Run the below mentioned command and v
 ```bash
 kubectl get pods <pod name> -n <namespace name>
 ```
+
+## Verify from metrics
+Some metrics are exported to prometheus endpoint `/metrics` on port `9090`.
+
+When reloader is unable to reload, `reloader_reload_executed_total{success="false"}` metric gets incremented and when it reloads successfully, `reloader_reload_executed_total{success="true"}` gets incremented. You will be able to see the following metrics, with some other metrics, at `/metrics` endpoint.
+
+```
+reloader_reload_executed_total{success="false"} 15
+reloader_reload_executed_total{success="true"} 12
+```

glide.lock

@@ -1,269 +0,0 @@
-hash: b6fe060028bdb1249ba2413746476c2550b267eeab3c166c36a86e000a8dd354
-updated: 2018-07-24T21:12:43.027181463+05:00
-imports:
-- name: github.com/davecgh/go-spew
-  version: 782f4967f2dc4564575ca782fe2d04090b5faca8
-  subpackages:
-  - spew
-- name: github.com/emicklei/go-restful
-  version: ff4f55a206334ef123e4f79bbf348980da81ca46
-  subpackages:
-  - log
-- name: github.com/emicklei/go-restful-swagger12
-  version: dcef7f55730566d41eae5db10e7d6981829720f6
-- name: github.com/ghodss/yaml
-  version: 73d445a93680fa1a78ae23a5839bad48f32ba1ee
-- name: github.com/go-openapi/jsonpointer
-  version: 46af16f9f7b149af66e5d1bd010e3574dc06de98
-- name: github.com/go-openapi/jsonreference
-  version: 13c6e3589ad90f49bd3e3bbe2c2cb3d7a4142272
-- name: github.com/go-openapi/spec
-  version: 6aced65f8501fe1217321abf0749d354824ba2ff
-- name: github.com/go-openapi/swag
-  version: 1d0bd113de87027671077d3c71eb3ac5d7dbba72
-- name: github.com/gogo/protobuf
-  version: c0656edd0d9eab7c66d1eb0c568f9039345796f7
-  subpackages:
-  - proto
-  - sortkeys
-- name: github.com/golang/glog
-  version: 44145f04b68cf362d9c4df2182967c2275eaefed
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-  - ptypes/timestamp
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-- name: golang.org/x/sys
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-- name: gopkg.in/inf.v0
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-  subpackages:
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-  - kubernetes/typed/networking/v1
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-  - kubernetes/typed/policy/v1beta1
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-  - kubernetes/typed/rbac/v1
-  - kubernetes/typed/rbac/v1/fake
-  - kubernetes/typed/rbac/v1alpha1
-  - kubernetes/typed/rbac/v1alpha1/fake
-  - kubernetes/typed/rbac/v1beta1
-  - kubernetes/typed/rbac/v1beta1/fake
-  - kubernetes/typed/scheduling/v1alpha1
-  - kubernetes/typed/scheduling/v1alpha1/fake
-  - kubernetes/typed/settings/v1alpha1
-  - kubernetes/typed/settings/v1alpha1/fake
-  - kubernetes/typed/storage/v1
-  - kubernetes/typed/storage/v1/fake
-  - kubernetes/typed/storage/v1beta1
-  - kubernetes/typed/storage/v1beta1/fake
-  - pkg/version
-  - rest
-  - rest/watch
-  - testing
-  - tools/auth
-  - tools/cache
-  - tools/clientcmd
-  - tools/clientcmd/api
-  - tools/clientcmd/api/latest
-  - tools/clientcmd/api/v1
-  - tools/metrics
-  - tools/pager
-  - tools/reference
-  - transport
-  - util/cert
-  - util/flowcontrol
-  - util/homedir
-  - util/integer
-  - util/workqueue
-- name: k8s.io/kube-openapi
-  version: 868f2f29720b192240e18284659231b440f9cda5
-  subpackages:
-  - pkg/common
-testImports: []

glide.yaml

@@ -1,14 +0,0 @@
-package: github.com/stakater/Reloader
-import:
-- package: k8s.io/api
-  version: kubernetes-1.8.0
-- package: k8s.io/apimachinery
-  version: kubernetes-1.8.0
-- package: k8s.io/client-go
-  version: 5.0.0
-- package: github.com/spf13/cobra
-  version: 0.0.3
-- package: github.com/spf13/pflag
-  version: 1.0.1
-- package: github.com/sirupsen/logrus
-  version: 1.0.5

go.mod

@@ -0,0 +1,28 @@
+module github.com/stakater/Reloader
+
+go 1.13
+
+require (
+	github.com/golang/groupcache v0.0.0-20191002201903-404acd9df4cc // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/onsi/ginkgo v1.10.2 // indirect
+	github.com/onsi/gomega v1.7.0 // indirect
+	github.com/openshift/api v3.9.1-0.20190923092516-169848dd8137+incompatible
+	github.com/openshift/client-go v0.0.0-20190923092832-6afefc9bb372
+	github.com/prometheus/client_golang v1.4.1
+	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/cobra v0.0.0-20160722081547-f62e98d28ab7
+	gopkg.in/airbrake/gobrake.v2 v2.0.9 // indirect
+	gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2 // indirect
+	k8s.io/api v0.0.0-20190918155943-95b840bb6a1f
+	k8s.io/apimachinery v0.0.0-20191004115801-a2eda9f80ab8
+	k8s.io/client-go v0.0.0-20190918160344-1fbdaa4c8d90
+)
+
+replace (
+	github.com/openshift/api => github.com/openshift/api v3.9.1-0.20190923092516-169848dd8137+incompatible // prebase-1.16
+	github.com/openshift/client-go => github.com/openshift/client-go v0.0.0-20190923092832-6afefc9bb372 // prebase-1.16
+	k8s.io/api => k8s.io/api v0.0.0-20191004120104-195af9ec3521 // release-1.16
+	k8s.io/apimachinery => k8s.io/apimachinery v0.0.0-20191004115801-a2eda9f80ab8 // kubernetes-1.16.0
+	k8s.io/client-go => k8s.io/client-go v0.0.0-20190918160344-1fbdaa4c8d90 // kubernetes-1.16.0
+)

go.sum

@@ -0,0 +1,293 @@
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+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
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+k8s.io/apimachinery v0.0.0-20191004115801-a2eda9f80ab8/go.mod h1:llRdnznGEAqC3DcNm6yEj472xaFVfLM7hnYofMb12tQ=
+k8s.io/client-go v0.0.0-20190918160344-1fbdaa4c8d90 h1:mLmhKUm1X+pXu0zXMEzNsOF5E2kKFGe5o6BZBIIqA6A=
+k8s.io/client-go v0.0.0-20190918160344-1fbdaa4c8d90/go.mod h1:J69/JveO6XESwVgG53q3Uz5OSfgsv4uxpScmmyYOOlk=
+k8s.io/gengo v0.0.0-20190128074634-0689ccc1d7d6/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0=
+k8s.io/klog v0.0.0-20181102134211-b9b56d5dfc92/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
+k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
+k8s.io/klog v0.4.0 h1:lCJCxf/LIowc2IGS9TPjWDyXY4nOmdGdfcwwDQCOURQ=
+k8s.io/klog v0.4.0/go.mod h1:4Bi6QPql/J/LkTDqv7R/cd3hPo4k2DG6Ptcz060Ez5I=
+k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf h1:EYm5AW/UUDbnmnI+gK0TJDVK9qPLhM+sRHYanNKw0EQ=
+k8s.io/kube-openapi v0.0.0-20190816220812-743ec37842bf/go.mod h1:1TqjTSzOxsLGIKfj0lK8EeCP7K1iUG65v09OM0/WG5E=
+k8s.io/utils v0.0.0-20190801114015-581e00157fb1 h1:+ySTxfHnfzZb9ys375PXNlLhkJPLKgHajBU0N62BDvE=
+k8s.io/utils v0.0.0-20190801114015-581e00157fb1/go.mod h1:sZAwmy6armz5eXlNoLmJcl4F1QuKu7sr+mFQ0byX7Ew=
+sigs.k8s.io/structured-merge-diff v0.0.0-20190525122527-15d366b2352e/go.mod h1:wWxsB5ozmmv/SG7nM11ayaAW51xMvak/t1r0CSlcokI=
+sigs.k8s.io/yaml v1.1.0 h1:4A07+ZFc2wgJwo8YNlQpr1rVlgUDlxXHhPJciaPY5gs=
+sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=

internal/pkg/callbacks/rolling_upgrade.go

@@ -3,89 +3,207 @@ package callbacks
 import (
 	"github.com/sirupsen/logrus"
 	"github.com/stakater/Reloader/internal/pkg/util"
-	apps_v1beta1 "k8s.io/api/apps/v1beta1"
-	"k8s.io/api/core/v1"
-	"k8s.io/api/extensions/v1beta1"
+	"github.com/stakater/Reloader/pkg/kube"
+	appsv1 "k8s.io/api/apps/v1"
+	v1 "k8s.io/api/core/v1"
 	meta_v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/client-go/kubernetes"
+
+	openshiftv1 "github.com/openshift/api/apps/v1"
 )
 
 //ItemsFunc is a generic function to return a specific resource array in given namespace
-type ItemsFunc func(kubernetes.Interface, string) []interface{}
+type ItemsFunc func(kube.Clients, string) []interface{}
 
 //ContainersFunc is a generic func to return containers
 type ContainersFunc func(interface{}) []v1.Container
 
+//InitContainersFunc is a generic func to return containers
+type InitContainersFunc func(interface{}) []v1.Container
+
+//VolumesFunc is a generic func to return volumes
+type VolumesFunc func(interface{}) []v1.Volume
+
 //UpdateFunc performs the resource update
-type UpdateFunc func(kubernetes.Interface, string, interface{}) error
+type UpdateFunc func(kube.Clients, string, interface{}) error
+
+//AnnotationsFunc is a generic func to return annotations
+type AnnotationsFunc func(interface{}) map[string]string
+
+//PodAnnotationsFunc is a generic func to return annotations
+type PodAnnotationsFunc func(interface{}) map[string]string
 
 //RollingUpgradeFuncs contains generic functions to perform rolling upgrade
 type RollingUpgradeFuncs struct {
-	ItemsFunc      ItemsFunc
-	ContainersFunc ContainersFunc
-	UpdateFunc     UpdateFunc
-	ResourceType   string
+	ItemsFunc          ItemsFunc
+	AnnotationsFunc    AnnotationsFunc
+	PodAnnotationsFunc PodAnnotationsFunc
+	ContainersFunc     ContainersFunc
+	InitContainersFunc InitContainersFunc
+	UpdateFunc         UpdateFunc
+	VolumesFunc        VolumesFunc
+	ResourceType       string
 }
 
 // GetDeploymentItems returns the deployments in given namespace
-func GetDeploymentItems(client kubernetes.Interface, namespace string) []interface{} {
-	deployments, err := client.ExtensionsV1beta1().Deployments(namespace).List(meta_v1.ListOptions{})
+func GetDeploymentItems(clients kube.Clients, namespace string) []interface{} {
+	deployments, err := clients.KubernetesClient.AppsV1().Deployments(namespace).List(meta_v1.ListOptions{})
 	if err != nil {
 		logrus.Errorf("Failed to list deployments %v", err)
 	}
 	return util.InterfaceSlice(deployments.Items)
 }
 
-// GetDaemonSetItems returns the daemonSet in given namespace
-func GetDaemonSetItems(client kubernetes.Interface, namespace string) []interface{} {
-	daemonSets, err := client.ExtensionsV1beta1().DaemonSets(namespace).List(meta_v1.ListOptions{})
+// GetDaemonSetItems returns the daemonSets in given namespace
+func GetDaemonSetItems(clients kube.Clients, namespace string) []interface{} {
+	daemonSets, err := clients.KubernetesClient.AppsV1().DaemonSets(namespace).List(meta_v1.ListOptions{})
 	if err != nil {
 		logrus.Errorf("Failed to list daemonSets %v", err)
 	}
 	return util.InterfaceSlice(daemonSets.Items)
 }
 
-// GetStatefulSetItems returns the statefulSet in given namespace
-func GetStatefulSetItems(client kubernetes.Interface, namespace string) []interface{} {
-	statefulSets, err := client.AppsV1beta1().StatefulSets(namespace).List(meta_v1.ListOptions{})
+// GetStatefulSetItems returns the statefulSets in given namespace
+func GetStatefulSetItems(clients kube.Clients, namespace string) []interface{} {
+	statefulSets, err := clients.KubernetesClient.AppsV1().StatefulSets(namespace).List(meta_v1.ListOptions{})
 	if err != nil {
 		logrus.Errorf("Failed to list statefulSets %v", err)
 	}
 	return util.InterfaceSlice(statefulSets.Items)
 }
 
+// GetDeploymentConfigItems returns the deploymentConfigs in given namespace
+func GetDeploymentConfigItems(clients kube.Clients, namespace string) []interface{} {
+	deploymentConfigs, err := clients.OpenshiftAppsClient.AppsV1().DeploymentConfigs(namespace).List(meta_v1.ListOptions{})
+	if err != nil {
+		logrus.Errorf("Failed to list deploymentConfigs %v", err)
+	}
+	return util.InterfaceSlice(deploymentConfigs.Items)
+}
+
+// GetDeploymentAnnotations returns the annotations of given deployment
+func GetDeploymentAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.Deployment).ObjectMeta.Annotations
+}
+
+// GetDaemonSetAnnotations returns the annotations of given daemonSet
+func GetDaemonSetAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.DaemonSet).ObjectMeta.Annotations
+}
+
+// GetStatefulSetAnnotations returns the annotations of given statefulSet
+func GetStatefulSetAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.StatefulSet).ObjectMeta.Annotations
+}
+
+// GetDeploymentConfigAnnotations returns the annotations of given deploymentConfig
+func GetDeploymentConfigAnnotations(item interface{}) map[string]string {
+	return item.(openshiftv1.DeploymentConfig).ObjectMeta.Annotations
+}
+
+// GetDeploymentPodAnnotations returns the pod's annotations of given deployment
+func GetDeploymentPodAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.Deployment).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetDaemonSetPodAnnotations returns the pod's annotations of given daemonSet
+func GetDaemonSetPodAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.DaemonSet).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetStatefulSetPodAnnotations returns the pod's annotations of given statefulSet
+func GetStatefulSetPodAnnotations(item interface{}) map[string]string {
+	return item.(appsv1.StatefulSet).Spec.Template.ObjectMeta.Annotations
+}
+
+// GetDeploymentConfigPodAnnotations returns the pod's annotations of given deploymentConfig
+func GetDeploymentConfigPodAnnotations(item interface{}) map[string]string {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.ObjectMeta.Annotations
+}
+
 // GetDeploymentContainers returns the containers of given deployment
 func GetDeploymentContainers(item interface{}) []v1.Container {
-	return item.(v1beta1.Deployment).Spec.Template.Spec.Containers
+	return item.(appsv1.Deployment).Spec.Template.Spec.Containers
 }
 
-// GetDaemonSetContainers returns the containers of given daemonset
+// GetDaemonSetContainers returns the containers of given daemonSet
 func GetDaemonSetContainers(item interface{}) []v1.Container {
-	return item.(v1beta1.DaemonSet).Spec.Template.Spec.Containers
+	return item.(appsv1.DaemonSet).Spec.Template.Spec.Containers
 }
 
-// GetStatefulsetContainers returns the containers of given statefulSet
-func GetStatefulsetContainers(item interface{}) []v1.Container {
-	return item.(apps_v1beta1.StatefulSet).Spec.Template.Spec.Containers
+// GetStatefulSetContainers returns the containers of given statefulSet
+func GetStatefulSetContainers(item interface{}) []v1.Container {
+	return item.(appsv1.StatefulSet).Spec.Template.Spec.Containers
+}
+
+// GetDeploymentConfigContainers returns the containers of given deploymentConfig
+func GetDeploymentConfigContainers(item interface{}) []v1.Container {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.Spec.Containers
+}
+
+// GetDeploymentInitContainers returns the containers of given deployment
+func GetDeploymentInitContainers(item interface{}) []v1.Container {
+	return item.(appsv1.Deployment).Spec.Template.Spec.InitContainers
+}
+
+// GetDaemonSetInitContainers returns the containers of given daemonSet
+func GetDaemonSetInitContainers(item interface{}) []v1.Container {
+	return item.(appsv1.DaemonSet).Spec.Template.Spec.InitContainers
+}
+
+// GetStatefulSetInitContainers returns the containers of given statefulSet
+func GetStatefulSetInitContainers(item interface{}) []v1.Container {
+	return item.(appsv1.StatefulSet).Spec.Template.Spec.InitContainers
+}
+
+// GetDeploymentConfigInitContainers returns the containers of given deploymentConfig
+func GetDeploymentConfigInitContainers(item interface{}) []v1.Container {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.Spec.InitContainers
 }
 
 // UpdateDeployment performs rolling upgrade on deployment
-func UpdateDeployment(client kubernetes.Interface, namespace string, resource interface{}) error {
-	deployment := resource.(v1beta1.Deployment)
-	_, err := client.ExtensionsV1beta1().Deployments(namespace).Update(&deployment)
+func UpdateDeployment(clients kube.Clients, namespace string, resource interface{}) error {
+	deployment := resource.(appsv1.Deployment)
+	_, err := clients.KubernetesClient.AppsV1().Deployments(namespace).Update(&deployment)
 	return err
 }
 
 // UpdateDaemonSet performs rolling upgrade on daemonSet
-func UpdateDaemonSet(client kubernetes.Interface, namespace string, resource interface{}) error {
-	daemonSet := resource.(v1beta1.DaemonSet)
-	_, err := client.ExtensionsV1beta1().DaemonSets(namespace).Update(&daemonSet)
+func UpdateDaemonSet(clients kube.Clients, namespace string, resource interface{}) error {
+	daemonSet := resource.(appsv1.DaemonSet)
+	_, err := clients.KubernetesClient.AppsV1().DaemonSets(namespace).Update(&daemonSet)
 	return err
 }
 
-// UpdateStatefulset performs rolling upgrade on statefulSet
-func UpdateStatefulset(client kubernetes.Interface, namespace string, resource interface{}) error {
-	statefulSet := resource.(apps_v1beta1.StatefulSet)
-	_, err := client.AppsV1beta1().StatefulSets(namespace).Update(&statefulSet)
+// UpdateStatefulSet performs rolling upgrade on statefulSet
+func UpdateStatefulSet(clients kube.Clients, namespace string, resource interface{}) error {
+	statefulSet := resource.(appsv1.StatefulSet)
+	_, err := clients.KubernetesClient.AppsV1().StatefulSets(namespace).Update(&statefulSet)
 	return err
 }
+
+// UpdateDeploymentConfig performs rolling upgrade on deploymentConfig
+func UpdateDeploymentConfig(clients kube.Clients, namespace string, resource interface{}) error {
+	deploymentConfig := resource.(openshiftv1.DeploymentConfig)
+	_, err := clients.OpenshiftAppsClient.AppsV1().DeploymentConfigs(namespace).Update(&deploymentConfig)
+	return err
+}
+
+// GetDeploymentVolumes returns the Volumes of given deployment
+func GetDeploymentVolumes(item interface{}) []v1.Volume {
+	return item.(appsv1.Deployment).Spec.Template.Spec.Volumes
+}
+
+// GetDaemonSetVolumes returns the Volumes of given daemonSet
+func GetDaemonSetVolumes(item interface{}) []v1.Volume {
+	return item.(appsv1.DaemonSet).Spec.Template.Spec.Volumes
+}
+
+// GetStatefulSetVolumes returns the Volumes of given statefulSet
+func GetStatefulSetVolumes(item interface{}) []v1.Volume {
+	return item.(appsv1.StatefulSet).Spec.Template.Spec.Volumes
+}
+
+// GetDeploymentConfigVolumes returns the Volumes of given deploymentConfig
+func GetDeploymentConfigVolumes(item interface{}) []v1.Volume {
+	return item.(openshiftv1.DeploymentConfig).Spec.Template.Spec.Volumes
+}

internal/pkg/cmd/reloader.go

@@ -1,13 +1,18 @@
 package cmd
 
 import (
+	"errors"
+	"fmt"
 	"os"
 
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"github.com/stakater/Reloader/internal/pkg/controller"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	"github.com/stakater/Reloader/internal/pkg/util"
 	"github.com/stakater/Reloader/pkg/kube"
-	"k8s.io/apimachinery/pkg/apis/meta/v1"
+	v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 )
 
 // NewReloaderCommand starts the reloader controller
@@ -17,10 +22,38 @@ func NewReloaderCommand() *cobra.Command {
 		Short: "A watcher for your Kubernetes cluster",
 		Run:   startReloader,
 	}
+
+	// options
+	cmd.PersistentFlags().StringVar(&options.ConfigmapUpdateOnChangeAnnotation, "configmap-annotation", "configmap.reloader.stakater.com/reload", "annotation to detect changes in configmaps, specified by name")
+	cmd.PersistentFlags().StringVar(&options.SecretUpdateOnChangeAnnotation, "secret-annotation", "secret.reloader.stakater.com/reload", "annotation to detect changes in secrets, specified by name")
+	cmd.PersistentFlags().StringVar(&options.ReloaderAutoAnnotation, "auto-annotation", "reloader.stakater.com/auto", "annotation to detect changes in secrets")
+	cmd.PersistentFlags().StringVar(&options.AutoSearchAnnotation, "auto-search-annotation", "reloader.stakater.com/search", "annotation to detect changes in configmaps or secrets tagged with special match annotation")
+	cmd.PersistentFlags().StringVar(&options.SearchMatchAnnotation, "search-match-annotation", "reloader.stakater.com/match", "annotation to mark secrets or configmapts to match the search")
+	cmd.PersistentFlags().StringVar(&options.LogFormat, "log-format", "", "Log format to use (empty string for text, or JSON")
+	cmd.PersistentFlags().StringSlice("resources-to-ignore", []string{}, "list of resources to ignore (valid options 'configMaps' or 'secrets')")
+	cmd.PersistentFlags().StringSlice("namespaces-to-ignore", []string{}, "list of namespaces to ignore")
 	return cmd
 }
 
+func configureLogging(logFormat string) error {
+	switch logFormat {
+	case "json":
+		logrus.SetFormatter(&logrus.JSONFormatter{})
+	default:
+		// just let the library use default on empty string.
+		if logFormat != "" {
+			return fmt.Errorf("unsupported logging formatter: %q", logFormat)
+		}
+	}
+	return nil
+}
+
 func startReloader(cmd *cobra.Command, args []string) {
+	err := configureLogging(options.LogFormat)
+	if err != nil {
+		logrus.Warn(err)
+	}
+
 	logrus.Info("Starting Reloader")
 	currentNamespace := os.Getenv("KUBERNETES_NAMESPACE")
 	if len(currentNamespace) == 0 {
@@ -29,13 +62,29 @@ func startReloader(cmd *cobra.Command, args []string) {
 	}
 
 	// create the clientset
-	clientset, err := kube.GetClient()
+	clientset, err := kube.GetKubernetesClient()
 	if err != nil {
 		logrus.Fatal(err)
 	}
 
+	ignoredResourcesList, err := getIgnoredResourcesList(cmd)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	ignoredNamespacesList, err := getIgnoredNamespacesList(cmd)
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	collectors := metrics.SetupPrometheusEndpoint()
+
 	for k := range kube.ResourceMap {
-		c, err := controller.NewController(clientset, k, currentNamespace)
+		if ignoredResourcesList.Contains(k) {
+			continue
+		}
+
+		c, err := controller.NewController(clientset, k, currentNamespace, ignoredNamespacesList, collectors)
 		if err != nil {
 			logrus.Fatalf("%s", err)
 		}
@@ -50,3 +99,36 @@ func startReloader(cmd *cobra.Command, args []string) {
 	// Wait forever
 	select {}
 }
+
+func getIgnoredNamespacesList(cmd *cobra.Command) (util.List, error) {
+	return getStringSliceFromFlags(cmd, "namespaces-to-ignore")
+}
+
+func getStringSliceFromFlags(cmd *cobra.Command, flag string) ([]string, error) {
+	slice, err := cmd.Flags().GetStringSlice(flag)
+	if err != nil {
+		return nil, err
+	}
+
+	return slice, nil
+}
+
+func getIgnoredResourcesList(cmd *cobra.Command) (util.List, error) {
+
+	ignoredResourcesList, err := getStringSliceFromFlags(cmd, "resources-to-ignore")
+	if err != nil {
+		return nil, err
+	}
+
+	for _, v := range ignoredResourcesList {
+		if v != "configMaps" && v != "secrets" {
+			return nil, fmt.Errorf("'resources-to-ignore' only accepts 'configMaps' or 'secrets', not '%s'", v)
+		}
+	}
+
+	if len(ignoredResourcesList) > 1 {
+		return nil, errors.New("'resources-to-ignore' only accepts 'configMaps' or 'secrets', not both")
+	}
+
+	return ignoredResourcesList, nil
+}

internal/pkg/constants/annotations.go

@@ -1,8 +0,0 @@
-package constants
-
-const (
-	// ConfigmapUpdateOnChangeAnnotation is an annotation to detect changes in configmaps
-	ConfigmapUpdateOnChangeAnnotation = "configmap.reloader.stakater.com/reload"
-	// SecretUpdateOnChangeAnnotation is an annotation to detect changes in secrets
-	SecretUpdateOnChangeAnnotation = "secret.reloader.stakater.com/reload"
-)

internal/pkg/constants/enums.go

@@ -0,0 +1,15 @@
+package constants
+
+// Result is a status for deployment update
+type Result int
+
+const (
+	// Updated is returned when environment variable is created/updated
+	Updated Result = 1 + iota
+	// NotUpdated is returned when environment variable is found but had value equals to the new value
+	NotUpdated
+	// NoEnvVarFound is returned when no environment variable is found
+	NoEnvVarFound
+	// NoContainerFound is returned when no environment variable is found
+	NoContainerFound
+)

internal/pkg/controller/controller.go

@@ -6,6 +6,8 @@ import (
 
 	"github.com/sirupsen/logrus"
 	"github.com/stakater/Reloader/internal/pkg/handler"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/util"
 	"github.com/stakater/Reloader/pkg/kube"
 	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/util/runtime"
@@ -13,24 +15,29 @@ import (
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/tools/cache"
 	"k8s.io/client-go/util/workqueue"
+
+	v1 "k8s.io/api/core/v1"
 )
 
 // Controller for checking events
 type Controller struct {
-	client    kubernetes.Interface
-	indexer   cache.Indexer
-	queue     workqueue.RateLimitingInterface
-	informer  cache.Controller
-	namespace string
+	client            kubernetes.Interface
+	indexer           cache.Indexer
+	queue             workqueue.RateLimitingInterface
+	informer          cache.Controller
+	namespace         string
+	ignoredNamespaces util.List
+	collectors        metrics.Collectors
 }
 
 // NewController for initializing a Controller
 func NewController(
-	client kubernetes.Interface, resource string, namespace string) (*Controller, error) {
+	client kubernetes.Interface, resource string, namespace string, ignoredNamespaces []string, collectors metrics.Collectors) (*Controller, error) {
 
 	c := Controller{
-		client:    client,
-		namespace: namespace,
+		client:            client,
+		namespace:         namespace,
+		ignoredNamespaces: ignoredNamespaces,
 	}
 
 	queue := workqueue.NewRateLimitingQueue(workqueue.DefaultControllerRateLimiter())
@@ -44,27 +51,44 @@ func NewController(
 	c.indexer = indexer
 	c.informer = informer
 	c.queue = queue
+	c.collectors = collectors
 	return &c, nil
 }
 
 // Add function to add a new object to the queue in case of creating a resource
 func (c *Controller) Add(obj interface{}) {
-	c.queue.Add(handler.ResourceCreatedHandler{
-		Resource: obj,
-	})
+	if !c.resourceInIgnoredNamespace(obj) {
+		c.queue.Add(handler.ResourceCreatedHandler{
+			Resource:   obj,
+			Collectors: c.collectors,
+		})
+	}
+}
+
+func (c *Controller) resourceInIgnoredNamespace(raw interface{}) bool {
+	switch object := raw.(type) {
+	case *v1.ConfigMap:
+		return c.ignoredNamespaces.Contains(object.ObjectMeta.Namespace)
+	case *v1.Secret:
+		return c.ignoredNamespaces.Contains(object.ObjectMeta.Namespace)
+	}
+	return false
 }
 
 // Update function to add an old object and a new object to the queue in case of updating a resource
 func (c *Controller) Update(old interface{}, new interface{}) {
-	c.queue.Add(handler.ResourceUpdatedHandler{
-		Resource:    new,
-		OldResource: old,
-	})
+	if !c.resourceInIgnoredNamespace(new) {
+		c.queue.Add(handler.ResourceUpdatedHandler{
+			Resource:    new,
+			OldResource: old,
+			Collectors:  c.collectors,
+		})
+	}
 }
 
 // Delete function to add an object to the queue in case of deleting a resource
 func (c *Controller) Delete(old interface{}) {
-	logrus.Infof("Resource deletion has been detected but no further implementation found to take action")
+	// Todo: Any future delete event can be handled here
 }
 
 //Run function for controller which handles the queue

internal/pkg/handler/create.go

@@ -2,17 +2,39 @@ package handler
 
 import (
 	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	v1 "k8s.io/api/core/v1"
 )
 
 // ResourceCreatedHandler contains new objects
 type ResourceCreatedHandler struct {
-	Resource interface{}
+	Resource   interface{}
+	Collectors metrics.Collectors
 }
 
 // Handle processes the newly created resource
 func (r ResourceCreatedHandler) Handle() error {
 	if r.Resource == nil {
 		logrus.Errorf("Resource creation handler received nil resource")
+	} else {
+		config, _ := r.GetConfig()
+		// process resource based on its type
+		doRollingUpgrade(config, r.Collectors)
 	}
 	return nil
 }
+
+// GetConfig gets configurations containing SHA, annotations, namespace and resource name
+func (r ResourceCreatedHandler) GetConfig() (util.Config, string) {
+	var oldSHAData string
+	var config util.Config
+	if _, ok := r.Resource.(*v1.ConfigMap); ok {
+		config = util.GetConfigmapConfig(r.Resource.(*v1.ConfigMap))
+	} else if _, ok := r.Resource.(*v1.Secret); ok {
+		config = util.GetSecretConfig(r.Resource.(*v1.Secret))
+	} else {
+		logrus.Warnf("Invalid resource: Resource should be 'Secret' or 'Configmap' but found, %v", r.Resource)
+	}
+	return config, oldSHAData
+}

internal/pkg/handler/handler.go

@@ -1,6 +1,11 @@
 package handler
 
+import (
+	"github.com/stakater/Reloader/internal/pkg/util"
+)
+
 // ResourceHandler handles the creation and update of resources
 type ResourceHandler interface {
 	Handle() error
+	GetConfig() (util.Config, string)
 }

internal/pkg/handler/update.go

@@ -1,23 +1,17 @@
 package handler
 
 import (
-	"sort"
-	"strings"
-
 	"github.com/sirupsen/logrus"
-	"github.com/stakater/Reloader/internal/pkg/callbacks"
-	"github.com/stakater/Reloader/internal/pkg/constants"
-	"github.com/stakater/Reloader/internal/pkg/crypto"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
 	"github.com/stakater/Reloader/internal/pkg/util"
-	"github.com/stakater/Reloader/pkg/kube"
-	"k8s.io/api/core/v1"
-	"k8s.io/client-go/kubernetes"
+	v1 "k8s.io/api/core/v1"
 )
 
 // ResourceUpdatedHandler contains updated objects
 type ResourceUpdatedHandler struct {
 	Resource    interface{}
 	OldResource interface{}
+	Collectors  metrics.Collectors
 }
 
 // Handle processes the updated resource
@@ -25,162 +19,27 @@ func (r ResourceUpdatedHandler) Handle() error {
 	if r.Resource == nil || r.OldResource == nil {
 		logrus.Errorf("Resource update handler received nil resource")
 	} else {
-		config, envVarPostfix, oldSHAData := getConfig(r)
+		config, oldSHAData := r.GetConfig()
 		if config.SHAValue != oldSHAData {
-			logrus.Infof("Changes detected in %s of type '%s' in namespace: %s", config.ResourceName, envVarPostfix, config.Namespace)
 			// process resource based on its type
-			rollingUpgrade(r, config, envVarPostfix, callbacks.RollingUpgradeFuncs{
-				ItemsFunc:      callbacks.GetDeploymentItems,
-				ContainersFunc: callbacks.GetDeploymentContainers,
-				UpdateFunc:     callbacks.UpdateDeployment,
-				ResourceType:   "Deployment",
-			})
-			rollingUpgrade(r, config, envVarPostfix, callbacks.RollingUpgradeFuncs{
-				ItemsFunc:      callbacks.GetDaemonSetItems,
-				ContainersFunc: callbacks.GetDaemonSetContainers,
-				UpdateFunc:     callbacks.UpdateDaemonSet,
-				ResourceType:   "DaemonSet",
-			})
-			rollingUpgrade(r, config, envVarPostfix, callbacks.RollingUpgradeFuncs{
-				ItemsFunc:      callbacks.GetStatefulSetItems,
-				ContainersFunc: callbacks.GetStatefulsetContainers,
-				UpdateFunc:     callbacks.UpdateStatefulset,
-				ResourceType:   "StatefulSet",
-			})
+			doRollingUpgrade(config, r.Collectors)
 		}
 	}
 	return nil
 }
 
-func rollingUpgrade(r ResourceUpdatedHandler, config util.Config, envarPostfix string, upgradeFuncs callbacks.RollingUpgradeFuncs) {
-	client, err := kube.GetClient()
-	if err != nil {
-		logrus.Fatalf("Unable to create Kubernetes client error = %v", err)
-	}
-
-	err = PerformRollingUpgrade(client, config, envarPostfix, upgradeFuncs)
-	if err != nil {
-		logrus.Errorf("Rolling upgrade for %s failed with error = %v", config.ResourceName, err)
-	}
-}
-
-func getConfig(r ResourceUpdatedHandler) (util.Config, string, string) {
-	var oldSHAData, envVarPostfix string
+// GetConfig gets configurations containing SHA, annotations, namespace and resource name
+func (r ResourceUpdatedHandler) GetConfig() (util.Config, string) {
+	var oldSHAData string
 	var config util.Config
 	if _, ok := r.Resource.(*v1.ConfigMap); ok {
-		oldSHAData = getSHAfromConfigmap(r.OldResource.(*v1.ConfigMap).Data)
-		config = getConfigmapConfig(r)
-		envVarPostfix = constants.ConfigmapEnvVarPostfix
+		oldSHAData = util.GetSHAfromConfigmap(r.OldResource.(*v1.ConfigMap).Data)
+		config = util.GetConfigmapConfig(r.Resource.(*v1.ConfigMap))
 	} else if _, ok := r.Resource.(*v1.Secret); ok {
-		oldSHAData = getSHAfromSecret(r.OldResource.(*v1.Secret).Data)
-		config = getSecretConfig(r)
-		envVarPostfix = constants.SecretEnvVarPostfix
+		oldSHAData = util.GetSHAfromSecret(r.OldResource.(*v1.Secret).Data)
+		config = util.GetSecretConfig(r.Resource.(*v1.Secret))
 	} else {
 		logrus.Warnf("Invalid resource: Resource should be 'Secret' or 'Configmap' but found, %v", r.Resource)
 	}
-	return config, envVarPostfix, oldSHAData
-}
-
-func getConfigmapConfig(r ResourceUpdatedHandler) util.Config {
-	configmap := r.Resource.(*v1.ConfigMap)
-	return util.Config{
-		Namespace:    configmap.Namespace,
-		ResourceName: configmap.Name,
-		Annotation:   constants.ConfigmapUpdateOnChangeAnnotation,
-		SHAValue:     getSHAfromConfigmap(configmap.Data),
-	}
-}
-
-func getSecretConfig(r ResourceUpdatedHandler) util.Config {
-	secret := r.Resource.(*v1.Secret)
-	return util.Config{
-		Namespace:    secret.Namespace,
-		ResourceName: secret.Name,
-		Annotation:   constants.SecretUpdateOnChangeAnnotation,
-		SHAValue:     getSHAfromSecret(secret.Data),
-	}
-}
-
-// PerformRollingUpgrade upgrades the deployment if there is any change in configmap or secret data
-func PerformRollingUpgrade(client kubernetes.Interface, config util.Config, envarPostfix string, upgradeFuncs callbacks.RollingUpgradeFuncs) error {
-	items := upgradeFuncs.ItemsFunc(client, config.Namespace)
-	var err error
-	for _, i := range items {
-		containers := upgradeFuncs.ContainersFunc(i)
-		resourceName := util.ToObjectMeta(i).Name
-		// find correct annotation and update the resource
-		annotationValue := util.ToObjectMeta(i).Annotations[config.Annotation]
-		if annotationValue != "" {
-			values := strings.Split(annotationValue, ",")
-			for _, value := range values {
-				if value == config.ResourceName {
-					updated := updateContainers(containers, value, config.SHAValue, envarPostfix)
-					if !updated {
-						logrus.Warnf("Rolling upgrade failed because no container found to add environment variable in %s of type %s in namespace: %s", resourceName, upgradeFuncs.ResourceType, config.Namespace)
-					} else {
-						err = upgradeFuncs.UpdateFunc(client, config.Namespace, i)
-						if err != nil {
-							logrus.Errorf("Update for %s of type %s in namespace %s failed with error %v", resourceName, upgradeFuncs.ResourceType, config.Namespace, err)
-						} else {
-							logrus.Infof("Updated %s of type %s in namespace: %s ", resourceName, upgradeFuncs.ResourceType, config.Namespace)
-						}
-						break
-					}
-				}
-			}
-		}
-	}
-	return err
-}
-
-func updateContainers(containers []v1.Container, annotationValue string, shaData string, envarPostfix string) bool {
-	updated := false
-	envar := constants.EnvVarPrefix + util.ConvertToEnvVarName(annotationValue)+ "_" + envarPostfix
-	for i := range containers {
-		envs := containers[i].Env
-
-		//update if env var exists
-		updated = updateEnvVar(envs, envar, shaData)
-
-		// if no existing env var exists lets create one
-		if !updated {
-			e := v1.EnvVar{
-				Name:  envar,
-				Value: shaData,
-			}
-			containers[i].Env = append(containers[i].Env, e)
-			updated = true
-		}
-	}
-	return updated
-}
-
-func updateEnvVar(envs []v1.EnvVar, envar string, shaData string) bool {
-	for j := range envs {
-		if envs[j].Name == envar {
-			if envs[j].Value != shaData {
-				envs[j].Value = shaData
-				return true
-			}
-		}
-	}
-	return false
-}
-
-func getSHAfromConfigmap(data map[string]string) string {
-	values := []string{}
-	for k, v := range data {
-		values = append(values, k+"="+v)
-	}
-	sort.Strings(values)
-	return crypto.GenerateSHA(strings.Join(values, ";"))
-}
-
-func getSHAfromSecret(data map[string][]byte) string {
-	values := []string{}
-	for k, v := range data {
-		values = append(values, k+"="+string(v[:]))
-	}
-	sort.Strings(values)
-	return crypto.GenerateSHA(strings.Join(values, ";"))
+	return config, oldSHAData
 }

internal/pkg/handler/update_test.go

@@ -1,315 +0,0 @@
-package handler
-
-import (
-	"os"
-	"testing"
-	"time"
-
-	"github.com/sirupsen/logrus"
-	"github.com/stakater/Reloader/internal/pkg/callbacks"
-	"github.com/stakater/Reloader/internal/pkg/constants"
-	"github.com/stakater/Reloader/internal/pkg/testutil"
-	"github.com/stakater/Reloader/internal/pkg/util"
-	testclient "k8s.io/client-go/kubernetes/fake"
-)
-
-var (
-	client        = testclient.NewSimpleClientset()
-	namespace     = "test-handler-" + testutil.RandSeq(5)
-	configmapName = "testconfigmap-handler-" + testutil.RandSeq(5)
-	secretName    = "testsecret-handler-" + testutil.RandSeq(5)
-)
-
-func TestMain(m *testing.M) {
-
-	// Creating namespace
-	testutil.CreateNamespace(namespace, client)
-
-	logrus.Infof("Setting up the test resources")
-	setup()
-
-	logrus.Infof("Running Testcases")
-	retCode := m.Run()
-
-	logrus.Infof("tearing down the test resources")
-	teardown()
-
-	os.Exit(retCode)
-}
-
-func setup() {
-	// Creating configmap
-	_, err := testutil.CreateConfigMap(client, namespace, configmapName, "www.google.com")
-	if err != nil {
-		logrus.Errorf("Error in configmap creation: %v", err)
-	}
-
-	// Creating secret
-	data := "dGVzdFNlY3JldEVuY29kaW5nRm9yUmVsb2FkZXI="
-	_, err = testutil.CreateSecret(client, namespace, secretName, data)
-	if err != nil {
-		logrus.Errorf("Error in secret creation: %v", err)
-	}
-
-	// Creating Deployment with configmap
-	_, err = testutil.CreateDeployment(client, configmapName, namespace)
-	if err != nil {
-		logrus.Errorf("Error in Deployment with configmap creation: %v", err)
-	}
-
-	// Creating Deployment with secret
-	_, err = testutil.CreateDeployment(client, secretName, namespace)
-	if err != nil {
-		logrus.Errorf("Error in Deployment with secret creation: %v", err)
-	}
-
-	// Creating DaemonSet with configmap
-	_, err = testutil.CreateDaemonSet(client, configmapName, namespace)
-	if err != nil {
-		logrus.Errorf("Error in DaemonSet with configmap creation: %v", err)
-	}
-
-	// Creating DaemonSet with secret
-	_, err = testutil.CreateDaemonSet(client, secretName, namespace)
-	if err != nil {
-		logrus.Errorf("Error in DaemonSet with secret creation: %v", err)
-	}
-
-	// Creating StatefulSet with configmap
-	_, err = testutil.CreateStatefulSet(client, configmapName, namespace)
-	if err != nil {
-		logrus.Errorf("Error in StatefulSet with configmap creation: %v", err)
-	}
-
-	// Creating StatefulSet with secret
-	_, err = testutil.CreateStatefulSet(client, secretName, namespace)
-	if err != nil {
-		logrus.Errorf("Error in StatefulSet with secret creation: %v", err)
-	}
-
-}
-
-func teardown() {
-	// Deleting Deployment with configmap
-	deploymentError := testutil.DeleteDeployment(client, namespace, configmapName)
-	if deploymentError != nil {
-		logrus.Errorf("Error while deleting deployment with configmap %v", deploymentError)
-	}
-
-	// Deleting Deployment with secret
-	deploymentError = testutil.DeleteDeployment(client, namespace, secretName)
-	if deploymentError != nil {
-		logrus.Errorf("Error while deleting deployment with secret %v", deploymentError)
-	}
-
-	// Deleting DaemonSet with configmap
-	daemonSetError := testutil.DeleteDaemonSet(client, namespace, configmapName)
-	if daemonSetError != nil {
-		logrus.Errorf("Error while deleting daemonSet with configmap %v", daemonSetError)
-	}
-
-	// Deleting Deployment with secret
-	daemonSetError = testutil.DeleteDaemonSet(client, namespace, secretName)
-	if daemonSetError != nil {
-		logrus.Errorf("Error while deleting daemonSet with secret %v", daemonSetError)
-	}
-
-	// Deleting StatefulSet with configmap
-	statefulSetError := testutil.DeleteStatefulSet(client, namespace, configmapName)
-	if statefulSetError != nil {
-		logrus.Errorf("Error while deleting statefulSet with configmap %v", statefulSetError)
-	}
-
-	// Deleting Deployment with secret
-	statefulSetError = testutil.DeleteStatefulSet(client, namespace, secretName)
-	if statefulSetError != nil {
-		logrus.Errorf("Error while deleting statefulSet with secret %v", statefulSetError)
-	}
-
-	// Deleting Configmap
-	err := testutil.DeleteConfigMap(client, namespace, configmapName)
-	if err != nil {
-		logrus.Errorf("Error while deleting the configmap %v", err)
-	}
-
-	// Deleting Secret
-	err = testutil.DeleteSecret(client, namespace, secretName)
-	if err != nil {
-		logrus.Errorf("Error while deleting the secret %v", err)
-	}
-
-	// Deleting namespace
-	testutil.DeleteNamespace(namespace, client)
-
-}
-
-func TestRollingUpgradeForDeploymentWithConfigmap(t *testing.T) {
-	shaData := testutil.ConvertResourceToSHA(testutil.SecretResourceType, namespace, configmapName, "www.stakater.com")
-	config := util.Config{
-		Namespace:    namespace,
-		ResourceName: configmapName,
-		SHAValue:     shaData,
-		Annotation:   constants.ConfigmapUpdateOnChangeAnnotation,
-	}
-	deploymentFuncs := callbacks.RollingUpgradeFuncs{
-		ItemsFunc:      callbacks.GetDeploymentItems,
-		ContainersFunc: callbacks.GetDeploymentContainers,
-		UpdateFunc:     callbacks.UpdateDeployment,
-		ResourceType:   "Deployment",
-	}
-
-	err := PerformRollingUpgrade(client, config, constants.ConfigmapEnvVarPostfix, deploymentFuncs)
-	time.Sleep(5 * time.Second)
-	if err != nil {
-		t.Errorf("Rolling upgrade failed for Deployment with Configmap")
-	}
-
-	logrus.Infof("Verifying deployment update")
-	updated := testutil.VerifyResourceUpdate(client, config, constants.ConfigmapEnvVarPostfix, deploymentFuncs)
-	if !updated {
-		t.Errorf("Deployment was not updated")
-	}
-}
-
-func TestRollingUpgradeForDeploymentWithSecret(t *testing.T) {
-	shaData := testutil.ConvertResourceToSHA(testutil.SecretResourceType, namespace, secretName, "dGVzdFVwZGF0ZWRTZWNyZXRFbmNvZGluZ0ZvclJlbG9hZGVy")
-	config := util.Config{
-		Namespace:    namespace,
-		ResourceName: secretName,
-		SHAValue:     shaData,
-		Annotation:   constants.SecretUpdateOnChangeAnnotation,
-	}
-	deploymentFuncs := callbacks.RollingUpgradeFuncs{
-		ItemsFunc:      callbacks.GetDeploymentItems,
-		ContainersFunc: callbacks.GetDeploymentContainers,
-		UpdateFunc:     callbacks.UpdateDeployment,
-		ResourceType:   "Deployment",
-	}
-
-	err := PerformRollingUpgrade(client, config, constants.SecretEnvVarPostfix, deploymentFuncs)
-	time.Sleep(5 * time.Second)
-	if err != nil {
-		t.Errorf("Rolling upgrade failed for Deployment with Secret")
-	}
-
-	logrus.Infof("Verifying deployment update")
-	updated := testutil.VerifyResourceUpdate(client, config, constants.SecretEnvVarPostfix, deploymentFuncs)
-	if !updated {
-		t.Errorf("Deployment was not updated")
-	}
-}
-
-func TestRollingUpgradeForDaemonSetWithConfigmap(t *testing.T) {
-	shaData := testutil.ConvertResourceToSHA(testutil.ConfigmapResourceType, namespace, configmapName, "www.facebook.com")
-	config := util.Config{
-		Namespace:    namespace,
-		ResourceName: configmapName,
-		SHAValue:     shaData,
-		Annotation:   constants.ConfigmapUpdateOnChangeAnnotation,
-	}
-	daemonSetFuncs := callbacks.RollingUpgradeFuncs{
-		ItemsFunc:      callbacks.GetDaemonSetItems,
-		ContainersFunc: callbacks.GetDaemonSetContainers,
-		UpdateFunc:     callbacks.UpdateDaemonSet,
-		ResourceType:   "DaemonSet",
-	}
-
-	err := PerformRollingUpgrade(client, config, constants.ConfigmapEnvVarPostfix, daemonSetFuncs)
-	time.Sleep(5 * time.Second)
-	if err != nil {
-		t.Errorf("Rolling upgrade failed for DaemonSet with configmap")
-	}
-
-	logrus.Infof("Verifying daemonSet update")
-	updated := testutil.VerifyResourceUpdate(client, config, constants.ConfigmapEnvVarPostfix, daemonSetFuncs)
-	if !updated {
-		t.Errorf("DaemonSet was not updated")
-	}
-}
-
-func TestRollingUpgradeForDaemonSetWithSecret(t *testing.T) {
-	shaData := testutil.ConvertResourceToSHA(testutil.SecretResourceType, namespace, secretName, "d3d3LmZhY2Vib29rLmNvbQ==")
-
-	config := util.Config{
-		Namespace:    namespace,
-		ResourceName: secretName,
-		SHAValue:     shaData,
-		Annotation:   constants.SecretUpdateOnChangeAnnotation,
-	}
-	daemonSetFuncs := callbacks.RollingUpgradeFuncs{
-		ItemsFunc:      callbacks.GetDaemonSetItems,
-		ContainersFunc: callbacks.GetDaemonSetContainers,
-		UpdateFunc:     callbacks.UpdateDaemonSet,
-		ResourceType:   "DaemonSet",
-	}
-
-	err := PerformRollingUpgrade(client, config, constants.SecretEnvVarPostfix, daemonSetFuncs)
-	time.Sleep(5 * time.Second)
-	if err != nil {
-		t.Errorf("Rolling upgrade failed for DaemonSet with secret")
-	}
-
-	logrus.Infof("Verifying daemonSet update")
-	updated := testutil.VerifyResourceUpdate(client, config, constants.SecretEnvVarPostfix, daemonSetFuncs)
-	if !updated {
-		t.Errorf("DaemonSet was not updated")
-	}
-}
-
-func TestRollingUpgradeForStatefulSetWithConfigmap(t *testing.T) {
-	shaData := testutil.ConvertResourceToSHA(testutil.ConfigmapResourceType, namespace, configmapName, "www.twitter.com")
-
-	config := util.Config{
-		Namespace:    namespace,
-		ResourceName: configmapName,
-		SHAValue:     shaData,
-		Annotation:   constants.ConfigmapUpdateOnChangeAnnotation,
-	}
-	statefulSetFuncs := callbacks.RollingUpgradeFuncs{
-		ItemsFunc:      callbacks.GetStatefulSetItems,
-		ContainersFunc: callbacks.GetStatefulsetContainers,
-		UpdateFunc:     callbacks.UpdateStatefulset,
-		ResourceType:   "StatefulSet",
-	}
-
-	err := PerformRollingUpgrade(client, config, constants.ConfigmapEnvVarPostfix, statefulSetFuncs)
-	time.Sleep(5 * time.Second)
-	if err != nil {
-		t.Errorf("Rolling upgrade failed for StatefulSet with configmap")
-	}
-
-	logrus.Infof("Verifying statefulSet update")
-	updated := testutil.VerifyResourceUpdate(client, config, constants.ConfigmapEnvVarPostfix, statefulSetFuncs)
-	if !updated {
-		t.Errorf("StatefulSet was not updated")
-	}
-}
-
-func TestRollingUpgradeForStatefulSetWithSecret(t *testing.T) {
-	shaData := testutil.ConvertResourceToSHA(testutil.SecretResourceType, namespace, secretName, "d3d3LnR3aXR0ZXIuY29t")
-
-	config := util.Config{
-		Namespace:    namespace,
-		ResourceName: secretName,
-		SHAValue:     shaData,
-		Annotation:   constants.SecretUpdateOnChangeAnnotation,
-	}
-	statefulSetFuncs := callbacks.RollingUpgradeFuncs{
-		ItemsFunc:      callbacks.GetStatefulSetItems,
-		ContainersFunc: callbacks.GetStatefulsetContainers,
-		UpdateFunc:     callbacks.UpdateStatefulset,
-		ResourceType:   "StatefulSet",
-	}
-
-	err := PerformRollingUpgrade(client, config, constants.SecretEnvVarPostfix, statefulSetFuncs)
-	time.Sleep(5 * time.Second)
-	if err != nil {
-		t.Errorf("Rolling upgrade failed for StatefulSet with secret")
-	}
-
-	logrus.Infof("Verifying statefulSet update")
-	updated := testutil.VerifyResourceUpdate(client, config, constants.SecretEnvVarPostfix, statefulSetFuncs)
-	if !updated {
-		t.Errorf("StatefulSet was not updated")
-	}
-}

internal/pkg/handler/upgrade.go

@@ -0,0 +1,299 @@
+package handler
+
+import (
+	"strconv"
+	"strings"
+
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/sirupsen/logrus"
+	"github.com/stakater/Reloader/internal/pkg/callbacks"
+	"github.com/stakater/Reloader/internal/pkg/constants"
+	"github.com/stakater/Reloader/internal/pkg/metrics"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	"github.com/stakater/Reloader/internal/pkg/util"
+	"github.com/stakater/Reloader/pkg/kube"
+	v1 "k8s.io/api/core/v1"
+)
+
+// GetDeploymentRollingUpgradeFuncs returns all callback funcs for a deployment
+func GetDeploymentRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetDeploymentItems,
+		AnnotationsFunc:    callbacks.GetDeploymentAnnotations,
+		PodAnnotationsFunc: callbacks.GetDeploymentPodAnnotations,
+		ContainersFunc:     callbacks.GetDeploymentContainers,
+		InitContainersFunc: callbacks.GetDeploymentInitContainers,
+		UpdateFunc:         callbacks.UpdateDeployment,
+		VolumesFunc:        callbacks.GetDeploymentVolumes,
+		ResourceType:       "Deployment",
+	}
+}
+
+// GetDaemonSetRollingUpgradeFuncs returns all callback funcs for a daemonset
+func GetDaemonSetRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetDaemonSetItems,
+		AnnotationsFunc:    callbacks.GetDaemonSetAnnotations,
+		PodAnnotationsFunc: callbacks.GetDaemonSetPodAnnotations,
+		ContainersFunc:     callbacks.GetDaemonSetContainers,
+		InitContainersFunc: callbacks.GetDaemonSetInitContainers,
+		UpdateFunc:         callbacks.UpdateDaemonSet,
+		VolumesFunc:        callbacks.GetDaemonSetVolumes,
+		ResourceType:       "DaemonSet",
+	}
+}
+
+// GetStatefulSetRollingUpgradeFuncs returns all callback funcs for a statefulSet
+func GetStatefulSetRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetStatefulSetItems,
+		AnnotationsFunc:    callbacks.GetStatefulSetAnnotations,
+		PodAnnotationsFunc: callbacks.GetStatefulSetPodAnnotations,
+		ContainersFunc:     callbacks.GetStatefulSetContainers,
+		InitContainersFunc: callbacks.GetStatefulSetInitContainers,
+		UpdateFunc:         callbacks.UpdateStatefulSet,
+		VolumesFunc:        callbacks.GetStatefulSetVolumes,
+		ResourceType:       "StatefulSet",
+	}
+}
+
+// GetDeploymentConfigRollingUpgradeFuncs returns all callback funcs for a deploymentConfig
+func GetDeploymentConfigRollingUpgradeFuncs() callbacks.RollingUpgradeFuncs {
+	return callbacks.RollingUpgradeFuncs{
+		ItemsFunc:          callbacks.GetDeploymentConfigItems,
+		AnnotationsFunc:    callbacks.GetDeploymentConfigAnnotations,
+		PodAnnotationsFunc: callbacks.GetDeploymentConfigPodAnnotations,
+		ContainersFunc:     callbacks.GetDeploymentConfigContainers,
+		InitContainersFunc: callbacks.GetDeploymentConfigInitContainers,
+		UpdateFunc:         callbacks.UpdateDeploymentConfig,
+		VolumesFunc:        callbacks.GetDeploymentConfigVolumes,
+		ResourceType:       "DeploymentConfig",
+	}
+}
+
+func doRollingUpgrade(config util.Config, collectors metrics.Collectors) {
+	clients := kube.GetClients()
+
+	rollingUpgrade(clients, config, GetDeploymentRollingUpgradeFuncs(), collectors)
+	rollingUpgrade(clients, config, GetDaemonSetRollingUpgradeFuncs(), collectors)
+	rollingUpgrade(clients, config, GetStatefulSetRollingUpgradeFuncs(), collectors)
+
+	if kube.IsOpenshift {
+		rollingUpgrade(clients, config, GetDeploymentConfigRollingUpgradeFuncs(), collectors)
+	}
+}
+
+func rollingUpgrade(clients kube.Clients, config util.Config, upgradeFuncs callbacks.RollingUpgradeFuncs, collectors metrics.Collectors) {
+
+	err := PerformRollingUpgrade(clients, config, upgradeFuncs, collectors)
+	if err != nil {
+		logrus.Errorf("Rolling upgrade for '%s' failed with error = %v", config.ResourceName, err)
+	}
+}
+
+// PerformRollingUpgrade upgrades the deployment if there is any change in configmap or secret data
+func PerformRollingUpgrade(clients kube.Clients, config util.Config, upgradeFuncs callbacks.RollingUpgradeFuncs, collectors metrics.Collectors) error {
+	items := upgradeFuncs.ItemsFunc(clients, config.Namespace)
+	var err error
+	for _, i := range items {
+		// find correct annotation and update the resource
+		annotations := upgradeFuncs.AnnotationsFunc(i)
+		annotationValue, found := annotations[config.Annotation]
+		searchAnnotationValue, foundSearchAnn := annotations[options.AutoSearchAnnotation]
+		reloaderEnabledValue, foundAuto := annotations[options.ReloaderAutoAnnotation]
+		if !found && !foundAuto && !foundSearchAnn {
+			annotations = upgradeFuncs.PodAnnotationsFunc(i)
+			annotationValue = annotations[config.Annotation]
+			searchAnnotationValue = annotations[options.AutoSearchAnnotation]
+			reloaderEnabledValue = annotations[options.ReloaderAutoAnnotation]
+		}
+		result := constants.NotUpdated
+		reloaderEnabled, err := strconv.ParseBool(reloaderEnabledValue)
+		if err == nil && reloaderEnabled {
+			result = updateContainers(upgradeFuncs, i, config, true)
+		}
+
+		if result != constants.Updated && annotationValue != "" {
+			values := strings.Split(annotationValue, ",")
+			for _, value := range values {
+				if value == config.ResourceName {
+					result = updateContainers(upgradeFuncs, i, config, false)
+					if result == constants.Updated {
+						break
+					}
+				}
+			}
+		}
+
+		if result != constants.Updated && searchAnnotationValue == "true" {
+			matchAnnotationValue := config.ResourceAnnotations[options.SearchMatchAnnotation]
+			if matchAnnotationValue == "true" {
+				result = updateContainers(upgradeFuncs, i, config, true)
+			}
+		}
+
+		if result == constants.Updated {
+			err = upgradeFuncs.UpdateFunc(clients, config.Namespace, i)
+			resourceName := util.ToObjectMeta(i).Name
+			if err != nil {
+				logrus.Errorf("Update for '%s' of type '%s' in namespace '%s' failed with error %v", resourceName, upgradeFuncs.ResourceType, config.Namespace, err)
+				collectors.Reloaded.With(prometheus.Labels{"success": "false"}).Inc()
+			} else {
+				logrus.Infof("Changes detected in '%s' of type '%s' in namespace '%s'", config.ResourceName, config.Type, config.Namespace)
+				logrus.Infof("Updated '%s' of type '%s' in namespace '%s'", resourceName, upgradeFuncs.ResourceType, config.Namespace)
+				collectors.Reloaded.With(prometheus.Labels{"success": "true"}).Inc()
+			}
+		}
+	}
+	return err
+}
+
+func getVolumeMountName(volumes []v1.Volume, mountType string, volumeName string) string {
+	for i := range volumes {
+		if mountType == constants.ConfigmapEnvVarPostfix {
+			if volumes[i].ConfigMap != nil && volumes[i].ConfigMap.Name == volumeName {
+				return volumes[i].Name
+			}
+
+			if volumes[i].Projected != nil {
+				for j := range volumes[i].Projected.Sources {
+					if volumes[i].Projected.Sources[j].ConfigMap != nil && volumes[i].Projected.Sources[j].ConfigMap.Name == volumeName {
+						return volumes[i].Name
+					}
+				}
+			}
+		} else if mountType == constants.SecretEnvVarPostfix {
+			if volumes[i].Secret != nil && volumes[i].Secret.SecretName == volumeName {
+				return volumes[i].Name
+			}
+
+			if volumes[i].Projected != nil {
+				for j := range volumes[i].Projected.Sources {
+					if volumes[i].Projected.Sources[j].Secret != nil && volumes[i].Projected.Sources[j].Secret.Name == volumeName {
+						return volumes[i].Name
+					}
+				}
+			}
+		}
+	}
+
+	return ""
+}
+
+func getContainerWithVolumeMount(containers []v1.Container, volumeMountName string) *v1.Container {
+	for i := range containers {
+		volumeMounts := containers[i].VolumeMounts
+		for j := range volumeMounts {
+			if volumeMounts[j].Name == volumeMountName {
+				return &containers[i]
+			}
+		}
+	}
+
+	return nil
+}
+
+func getContainerWithEnvReference(containers []v1.Container, resourceName string, resourceType string) *v1.Container {
+	for i := range containers {
+		envs := containers[i].Env
+		for j := range envs {
+			envVarSource := envs[j].ValueFrom
+			if envVarSource != nil {
+				if resourceType == constants.SecretEnvVarPostfix && envVarSource.SecretKeyRef != nil && envVarSource.SecretKeyRef.LocalObjectReference.Name == resourceName {
+					return &containers[i]
+				} else if resourceType == constants.ConfigmapEnvVarPostfix && envVarSource.ConfigMapKeyRef != nil && envVarSource.ConfigMapKeyRef.LocalObjectReference.Name == resourceName {
+					return &containers[i]
+				}
+			}
+		}
+
+		envsFrom := containers[i].EnvFrom
+		for j := range envsFrom {
+			if resourceType == constants.SecretEnvVarPostfix && envsFrom[j].SecretRef != nil && envsFrom[j].SecretRef.LocalObjectReference.Name == resourceName {
+				return &containers[i]
+			} else if resourceType == constants.ConfigmapEnvVarPostfix && envsFrom[j].ConfigMapRef != nil && envsFrom[j].ConfigMapRef.LocalObjectReference.Name == resourceName {
+				return &containers[i]
+			}
+		}
+	}
+	return nil
+}
+
+func getContainerToUpdate(upgradeFuncs callbacks.RollingUpgradeFuncs, item interface{}, config util.Config, autoReload bool) *v1.Container {
+	volumes := upgradeFuncs.VolumesFunc(item)
+	containers := upgradeFuncs.ContainersFunc(item)
+	initContainers := upgradeFuncs.InitContainersFunc(item)
+	var container *v1.Container
+	// Get the volumeMountName to find volumeMount in container
+	volumeMountName := getVolumeMountName(volumes, config.Type, config.ResourceName)
+	// Get the container with mounted configmap/secret
+	if volumeMountName != "" {
+		container = getContainerWithVolumeMount(containers, volumeMountName)
+		if container == nil && len(initContainers) > 0 {
+			container = getContainerWithVolumeMount(initContainers, volumeMountName)
+			if container != nil {
+				// if configmap/secret is being used in init container then return the first Pod container to save reloader env
+				return &containers[0]
+			}
+		} else if container != nil {
+			return container
+		}
+	}
+
+	// Get the container with referenced secret or configmap as env var
+	container = getContainerWithEnvReference(containers, config.ResourceName, config.Type)
+	if container == nil && len(initContainers) > 0 {
+		container = getContainerWithEnvReference(initContainers, config.ResourceName, config.Type)
+		if container != nil {
+			// if configmap/secret is being used in init container then return the first Pod container to save reloader env
+			return &containers[0]
+		}
+	}
+
+	// Get the first container if the annotation is related to specified configmap or secret i.e. configmap.reloader.stakater.com/reload
+	if container == nil && !autoReload {
+		return &containers[0]
+	}
+
+	return container
+}
+
+func updateContainers(upgradeFuncs callbacks.RollingUpgradeFuncs, item interface{}, config util.Config, autoReload bool) constants.Result {
+	var result constants.Result
+	envar := constants.EnvVarPrefix + util.ConvertToEnvVarName(config.ResourceName) + "_" + config.Type
+	container := getContainerToUpdate(upgradeFuncs, item, config, autoReload)
+
+	if container == nil {
+		return constants.NoContainerFound
+	}
+
+	//update if env var exists
+	result = updateEnvVar(upgradeFuncs.ContainersFunc(item), envar, config.SHAValue)
+
+	// if no existing env var exists lets create one
+	if result == constants.NoEnvVarFound {
+		e := v1.EnvVar{
+			Name:  envar,
+			Value: config.SHAValue,
+		}
+		container.Env = append(container.Env, e)
+		result = constants.Updated
+	}
+	return result
+}
+
+func updateEnvVar(containers []v1.Container, envar string, shaData string) constants.Result {
+	for i := range containers {
+		envs := containers[i].Env
+		for j := range envs {
+			if envs[j].Name == envar {
+				if envs[j].Value != shaData {
+					envs[j].Value = shaData
+					return constants.Updated
+				}
+				return constants.NotUpdated
+			}
+		}
+	}
+	return constants.NoEnvVarFound
+}

internal/pkg/metrics/prometheus.go

@@ -0,0 +1,43 @@
+package metrics
+
+import (
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/sirupsen/logrus"
+	"net/http"
+)
+
+type Collectors struct {
+	Reloaded *prometheus.CounterVec
+}
+
+func NewCollectors() Collectors {
+	reloaded := prometheus.NewCounterVec(
+		prometheus.CounterOpts{
+			Namespace: "reloader",
+			Name:      "reload_executed_total",
+			Help:      "Counter of reloads executed by Reloader.",
+		},
+		[]string{"success"},
+	)
+
+	//set 0 as default value
+	reloaded.With(prometheus.Labels{"success": "true"}).Add(0)
+	reloaded.With(prometheus.Labels{"success": "false"}).Add(0)
+
+	return Collectors{
+		Reloaded: reloaded,
+	}
+}
+
+func SetupPrometheusEndpoint() Collectors {
+	collectors := NewCollectors()
+	prometheus.MustRegister(collectors.Reloaded)
+
+	go func() {
+		http.Handle("/metrics", promhttp.Handler())
+		logrus.Fatal(http.ListenAndServe(":9090", nil))
+	}()
+
+	return collectors
+}

internal/pkg/options/flags.go

@@ -0,0 +1,20 @@
+package options
+
+var (
+	// ConfigmapUpdateOnChangeAnnotation is an annotation to detect changes in
+	// configmaps specified by name
+	ConfigmapUpdateOnChangeAnnotation = "configmap.reloader.stakater.com/reload"
+	// SecretUpdateOnChangeAnnotation is an annotation to detect changes in
+	// secrets specified by name
+	SecretUpdateOnChangeAnnotation = "secret.reloader.stakater.com/reload"
+	// ReloaderAutoAnnotation is an annotation to detect changes in secrets
+	ReloaderAutoAnnotation = "reloader.stakater.com/auto"
+	// AutoSearchAnnotation is an annotation to detect changes in
+	// configmaps or triggers with the SearchMatchAnnotation
+	AutoSearchAnnotation = "reloader.stakater.com/search"
+	// SearchMatchAnnotation is an annotation to tag secrets to be found with
+	// AutoSearchAnnotation
+	SearchMatchAnnotation = "reloader.stakater.com/match"
+	// LogFormat is the log format to use (json, or empty string for default)
+	LogFormat = ""
+)

internal/pkg/testutil/kube.go

@@ -3,18 +3,21 @@ package testutil
 import (
 	"math/rand"
 	"sort"
+	"strconv"
 	"strings"
 	"time"
 
+	openshiftv1 "github.com/openshift/api/apps/v1"
+	appsclient "github.com/openshift/client-go/apps/clientset/versioned"
 	"github.com/sirupsen/logrus"
 	"github.com/stakater/Reloader/internal/pkg/callbacks"
 	"github.com/stakater/Reloader/internal/pkg/constants"
 	"github.com/stakater/Reloader/internal/pkg/crypto"
+	"github.com/stakater/Reloader/internal/pkg/options"
 	"github.com/stakater/Reloader/internal/pkg/util"
 	"github.com/stakater/Reloader/pkg/kube"
-	v1_beta1 "k8s.io/api/apps/v1beta1"
-	"k8s.io/api/core/v1"
-	"k8s.io/api/extensions/v1beta1"
+	appsv1 "k8s.io/api/apps/v1"
+	v1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/client-go/kubernetes"
 	core_v1 "k8s.io/client-go/kubernetes/typed/core/v1"
@@ -28,19 +31,11 @@ var (
 	SecretResourceType = "secrets"
 )
 
-func GetClient() *kubernetes.Clientset {
-	newClient, err := kube.GetClient()
-	if err != nil {
-		logrus.Fatalf("Unable to create Kubernetes client error = %v", err)
-	}
-	return newClient
-}
-
 // CreateNamespace creates namespace for testing
 func CreateNamespace(namespace string, client kubernetes.Interface) {
 	_, err := client.CoreV1().Namespaces().Create(&v1.Namespace{ObjectMeta: metav1.ObjectMeta{Name: namespace}})
 	if err != nil {
-		logrus.Fatalf("Failed to create namespace for testing", err)
+		logrus.Fatalf("Failed to create namespace for testing %v", err)
 	} else {
 		logrus.Infof("Creating namespace for testing = %s", namespace)
 	}
@@ -50,42 +45,161 @@ func CreateNamespace(namespace string, client kubernetes.Interface) {
 func DeleteNamespace(namespace string, client kubernetes.Interface) {
 	err := client.CoreV1().Namespaces().Delete(namespace, &metav1.DeleteOptions{})
 	if err != nil {
-		logrus.Fatalf("Failed to delete namespace that was created for testing", err)
+		logrus.Fatalf("Failed to delete namespace that was created for testing %v", err)
 	} else {
 		logrus.Infof("Deleting namespace for testing = %s", namespace)
 	}
 }
 
-// GetDeployment provides deployment for testing
-func GetDeployment(namespace string, deploymentName string) *v1beta1.Deployment {
-	replicaset := int32(1)
-	return &v1beta1.Deployment{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:      deploymentName,
-			Namespace: namespace,
-			Labels:    map[string]string{"firstLabel": "temp"},
-			Annotations: map[string]string{
-				constants.ConfigmapUpdateOnChangeAnnotation: deploymentName,
-				constants.SecretUpdateOnChangeAnnotation:    deploymentName},
-		},
-		Spec: v1beta1.DeploymentSpec{
-			Replicas: &replicaset,
-			Strategy: v1beta1.DeploymentStrategy{
-				Type: v1beta1.RollingUpdateDeploymentStrategyType,
-			},
-			Template: v1.PodTemplateSpec{
-				ObjectMeta: metav1.ObjectMeta{
-					Labels: map[string]string{"secondLabel": "temp"},
+func getObjectMeta(namespace string, name string, autoReload bool) metav1.ObjectMeta {
+	return metav1.ObjectMeta{
+		Name:        name,
+		Namespace:   namespace,
+		Labels:      map[string]string{"firstLabel": "temp"},
+		Annotations: getAnnotations(name, autoReload),
+	}
+}
+
+func getAnnotations(name string, autoReload bool) map[string]string {
+	if autoReload {
+		return map[string]string{
+			options.ReloaderAutoAnnotation: "true"}
+	}
+
+	return map[string]string{
+		options.ConfigmapUpdateOnChangeAnnotation: name,
+		options.SecretUpdateOnChangeAnnotation:    name}
+}
+
+func getEnvVarSources(name string) []v1.EnvFromSource {
+	return []v1.EnvFromSource{
+		{
+			ConfigMapRef: &v1.ConfigMapEnvSource{
+				LocalObjectReference: v1.LocalObjectReference{
+					Name: name,
 				},
-				Spec: v1.PodSpec{
-					Containers: []v1.Container{
+			},
+		},
+		{
+			SecretRef: &v1.SecretEnvSource{
+				LocalObjectReference: v1.LocalObjectReference{
+					Name: name,
+				},
+			},
+		},
+	}
+}
+
+func getVolumes(name string) []v1.Volume {
+	return []v1.Volume{
+		{
+			Name: "projectedconfigmap",
+			VolumeSource: v1.VolumeSource{
+				Projected: &v1.ProjectedVolumeSource{
+					Sources: []v1.VolumeProjection{
+						v1.VolumeProjection{
+							ConfigMap: &v1.ConfigMapProjection{
+								LocalObjectReference: v1.LocalObjectReference{
+									Name: name,
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			Name: "projectedsecret",
+			VolumeSource: v1.VolumeSource{
+				Projected: &v1.ProjectedVolumeSource{
+					Sources: []v1.VolumeProjection{
+						v1.VolumeProjection{
+							Secret: &v1.SecretProjection{
+								LocalObjectReference: v1.LocalObjectReference{
+									Name: name,
+								},
+							},
+						},
+					},
+				},
+			},
+		},
+		{
+			Name: "configmap",
+			VolumeSource: v1.VolumeSource{
+				ConfigMap: &v1.ConfigMapVolumeSource{
+					LocalObjectReference: v1.LocalObjectReference{
+						Name: name,
+					},
+				},
+			},
+		},
+		{
+			Name: "secret",
+			VolumeSource: v1.VolumeSource{
+				Secret: &v1.SecretVolumeSource{
+					SecretName: name,
+				},
+			},
+		},
+	}
+}
+
+func getVolumeMounts(name string) []v1.VolumeMount {
+	return []v1.VolumeMount{
+		{
+			MountPath: "etc/config",
+			Name:      "configmap",
+		},
+		{
+			MountPath: "etc/sec",
+			Name:      "secret",
+		},
+		{
+			MountPath: "etc/projectedconfig",
+			Name:      "projectedconfigmap",
+		},
+		{
+			MountPath: "etc/projectedsec",
+			Name:      "projectedsecret",
+		},
+	}
+}
+
+func getPodTemplateSpecWithEnvVars(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
 						{
-							Image: "tutum/hello-world",
-							Name:  deploymentName,
-							Env: []v1.EnvVar{
-								{
-									Name:  "BUCKET_NAME",
-									Value: "test",
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+						{
+							Name: "CONFIGMAP_" + util.ConvertToEnvVarName(name),
+							ValueFrom: &v1.EnvVarSource{
+								ConfigMapKeyRef: &v1.ConfigMapKeySelector{
+									LocalObjectReference: v1.LocalObjectReference{
+										Name: name,
+									},
+									Key: "test.url",
+								},
+							},
+						},
+						{
+							Name: "SECRET_" + util.ConvertToEnvVarName(name),
+							ValueFrom: &v1.EnvVarSource{
+								SecretKeyRef: &v1.SecretKeySelector{
+									LocalObjectReference: v1.LocalObjectReference{
+										Name: name,
+									},
+									Key: "test.url",
 								},
 							},
 						},
@@ -96,78 +210,306 @@ func GetDeployment(namespace string, deploymentName string) *v1beta1.Deployment
 	}
 }
 
-// GetDaemonSet provides daemonset for testing
-func GetDaemonSet(namespace string, daemonsetName string) *v1beta1.DaemonSet {
-	return &v1beta1.DaemonSet{
+func getPodTemplateSpecWithEnvVarSources(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
 		ObjectMeta: metav1.ObjectMeta{
-			Name:      daemonsetName,
-			Namespace: namespace,
-			Labels:    map[string]string{"firstLabel": "temp"},
-			Annotations: map[string]string{
-				constants.ConfigmapUpdateOnChangeAnnotation: daemonsetName,
-				constants.SecretUpdateOnChangeAnnotation:    daemonsetName},
+			Labels: map[string]string{"secondLabel": "temp"},
 		},
-		Spec: v1beta1.DaemonSetSpec{
-			UpdateStrategy: v1beta1.DaemonSetUpdateStrategy{
-				Type: v1beta1.RollingUpdateDaemonSetStrategyType,
-			},
-			Template: v1.PodTemplateSpec{
-				ObjectMeta: metav1.ObjectMeta{
-					Labels: map[string]string{"secondLabel": "temp"},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Image:   "tutum/hello-world",
+					Name:    name,
+					EnvFrom: getEnvVarSources(name),
 				},
-				Spec: v1.PodSpec{
-					Containers: []v1.Container{
+			},
+		},
+	}
+}
+
+func getPodTemplateSpecWithVolumes(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
 						{
-							Image: "tutum/hello-world",
-							Name:  daemonsetName,
-							Env: []v1.EnvVar{
-								{
-									Name:  "BUCKET_NAME",
-									Value: "test",
-								},
-							},
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+					},
+					VolumeMounts: getVolumeMounts(name),
+				},
+			},
+			Volumes: getVolumes(name),
+		},
+	}
+}
+
+func getPodTemplateSpecWithInitContainer(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			InitContainers: []v1.Container{
+				{
+					Image:        "busybox",
+					Name:         "busyBox",
+					VolumeMounts: getVolumeMounts(name),
+				},
+			},
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
+						{
+							Name:  "BUCKET_NAME",
+							Value: "test",
 						},
 					},
 				},
 			},
+			Volumes: getVolumes(name),
+		},
+	}
+}
+
+func getPodTemplateSpecWithInitContainerAndEnv(name string) v1.PodTemplateSpec {
+	return v1.PodTemplateSpec{
+		ObjectMeta: metav1.ObjectMeta{
+			Labels: map[string]string{"secondLabel": "temp"},
+		},
+		Spec: v1.PodSpec{
+			InitContainers: []v1.Container{
+				{
+					Image:   "busybox",
+					Name:    "busyBox",
+					EnvFrom: getEnvVarSources(name),
+				},
+			},
+			Containers: []v1.Container{
+				{
+					Image: "tutum/hello-world",
+					Name:  name,
+					Env: []v1.EnvVar{
+						{
+							Name:  "BUCKET_NAME",
+							Value: "test",
+						},
+					},
+				},
+			},
+		},
+	}
+}
+
+// GetDeployment provides deployment for testing
+func GetDeployment(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, false),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithVolumes(deploymentName),
+		},
+	}
+}
+
+// GetDeploymentConfig provides deployment for testing
+func GetDeploymentConfig(namespace string, deploymentConfigName string) *openshiftv1.DeploymentConfig {
+	replicaset := int32(1)
+	podTemplateSpecWithVolume := getPodTemplateSpecWithVolumes(deploymentConfigName)
+	return &openshiftv1.DeploymentConfig{
+		ObjectMeta: getObjectMeta(namespace, deploymentConfigName, false),
+		Spec: openshiftv1.DeploymentConfigSpec{
+			Replicas: replicaset,
+			Strategy: openshiftv1.DeploymentStrategy{
+				Type: openshiftv1.DeploymentStrategyTypeRolling,
+			},
+			Template: &podTemplateSpecWithVolume,
+		},
+	}
+}
+
+// GetDeploymentWithInitContainer provides deployment with init container and volumeMounts
+func GetDeploymentWithInitContainer(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, false),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithInitContainer(deploymentName),
+		},
+	}
+}
+
+// GetDeploymentWithInitContainerAndEnv provides deployment with init container and EnvSource
+func GetDeploymentWithInitContainerAndEnv(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, true),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithInitContainerAndEnv(deploymentName),
+		},
+	}
+}
+
+func GetDeploymentWithEnvVars(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, true),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVars(deploymentName),
+		},
+	}
+}
+
+func GetDeploymentConfigWithEnvVars(namespace string, deploymentConfigName string) *openshiftv1.DeploymentConfig {
+	replicaset := int32(1)
+	podTemplateSpecWithEnvVars := getPodTemplateSpecWithEnvVars(deploymentConfigName)
+	return &openshiftv1.DeploymentConfig{
+		ObjectMeta: getObjectMeta(namespace, deploymentConfigName, false),
+		Spec: openshiftv1.DeploymentConfigSpec{
+			Replicas: replicaset,
+			Strategy: openshiftv1.DeploymentStrategy{
+				Type: openshiftv1.DeploymentStrategyTypeRolling,
+			},
+			Template: &podTemplateSpecWithEnvVars,
+		},
+	}
+}
+
+func GetDeploymentWithEnvVarSources(namespace string, deploymentName string) *appsv1.Deployment {
+	replicaset := int32(1)
+	return &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, true),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVarSources(deploymentName),
+		},
+	}
+}
+
+func GetDeploymentWithPodAnnotations(namespace string, deploymentName string, both bool) *appsv1.Deployment {
+	replicaset := int32(1)
+	deployment := &appsv1.Deployment{
+		ObjectMeta: getObjectMeta(namespace, deploymentName, false),
+		Spec: appsv1.DeploymentSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			Replicas: &replicaset,
+			Strategy: appsv1.DeploymentStrategy{
+				Type: appsv1.RollingUpdateDeploymentStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVarSources(deploymentName),
+		},
+	}
+	if !both {
+		deployment.ObjectMeta.Annotations = nil
+	}
+	deployment.Spec.Template.ObjectMeta.Annotations = getAnnotations(deploymentName, true)
+	return deployment
+}
+
+// GetDaemonSet provides daemonset for testing
+func GetDaemonSet(namespace string, daemonsetName string) *appsv1.DaemonSet {
+	return &appsv1.DaemonSet{
+		ObjectMeta: getObjectMeta(namespace, daemonsetName, false),
+		Spec: appsv1.DaemonSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.DaemonSetUpdateStrategy{
+				Type: appsv1.RollingUpdateDaemonSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithVolumes(daemonsetName),
+		},
+	}
+}
+
+func GetDaemonSetWithEnvVars(namespace string, daemonSetName string) *appsv1.DaemonSet {
+	return &appsv1.DaemonSet{
+		ObjectMeta: getObjectMeta(namespace, daemonSetName, true),
+		Spec: appsv1.DaemonSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.DaemonSetUpdateStrategy{
+				Type: appsv1.RollingUpdateDaemonSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithEnvVars(daemonSetName),
 		},
 	}
 }
 
 // GetStatefulSet provides statefulset for testing
-func GetStatefulSet(namespace string, statefulsetName string) *v1_beta1.StatefulSet {
-	return &v1_beta1.StatefulSet{
-		ObjectMeta: metav1.ObjectMeta{
-			Name:      statefulsetName,
-			Namespace: namespace,
-			Labels:    map[string]string{"firstLabel": "temp"},
-			Annotations: map[string]string{
-				constants.ConfigmapUpdateOnChangeAnnotation: statefulsetName,
-				constants.SecretUpdateOnChangeAnnotation:    statefulsetName},
+func GetStatefulSet(namespace string, statefulsetName string) *appsv1.StatefulSet {
+	return &appsv1.StatefulSet{
+		ObjectMeta: getObjectMeta(namespace, statefulsetName, false),
+		Spec: appsv1.StatefulSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
+			},
+			UpdateStrategy: appsv1.StatefulSetUpdateStrategy{
+				Type: appsv1.RollingUpdateStatefulSetStrategyType,
+			},
+			Template: getPodTemplateSpecWithVolumes(statefulsetName),
 		},
-		Spec: v1_beta1.StatefulSetSpec{
-			UpdateStrategy: v1_beta1.StatefulSetUpdateStrategy{
-				Type: v1_beta1.RollingUpdateStatefulSetStrategyType,
+	}
+}
+
+// GetStatefulSet provides statefulset for testing
+func GetStatefulSetWithEnvVar(namespace string, statefulsetName string) *appsv1.StatefulSet {
+	return &appsv1.StatefulSet{
+		ObjectMeta: getObjectMeta(namespace, statefulsetName, true),
+		Spec: appsv1.StatefulSetSpec{
+			Selector: &metav1.LabelSelector{
+				MatchLabels: map[string]string{"secondLabel": "temp"},
 			},
-			Template: v1.PodTemplateSpec{
-				ObjectMeta: metav1.ObjectMeta{
-					Labels: map[string]string{"secondLabel": "temp"},
-				},
-				Spec: v1.PodSpec{
-					Containers: []v1.Container{
-						{
-							Image: "tutum/hello-world",
-							Name:  statefulsetName,
-							Env: []v1.EnvVar{
-								{
-									Name:  "BUCKET_NAME",
-									Value: "test",
-								},
-							},
-						},
-					},
-				},
+			UpdateStrategy: appsv1.StatefulSetUpdateStrategy{
+				Type: appsv1.RollingUpdateStatefulSetStrategyType,
 			},
+			Template: getPodTemplateSpecWithEnvVars(statefulsetName),
 		},
 	}
 }
@@ -256,7 +598,7 @@ func CreateConfigMap(client kubernetes.Interface, namespace string, configmapNam
 	logrus.Infof("Creating configmap")
 	configmapClient := client.CoreV1().ConfigMaps(namespace)
 	_, err := configmapClient.Create(GetConfigmap(namespace, configmapName, data))
-	time.Sleep(10 * time.Second)
+	time.Sleep(3 * time.Second)
 	return configmapClient, err
 }
 
@@ -265,58 +607,146 @@ func CreateSecret(client kubernetes.Interface, namespace string, secretName stri
 	logrus.Infof("Creating secret")
 	secretClient := client.CoreV1().Secrets(namespace)
 	_, err := secretClient.Create(GetSecret(namespace, secretName, data))
-	time.Sleep(10 * time.Second)
+	time.Sleep(3 * time.Second)
 	return secretClient, err
 }
-
 // CreateDeployment creates a deployment in given namespace and returns the Deployment
-func CreateDeployment(client kubernetes.Interface, deploymentName string, namespace string) (*v1beta1.Deployment, error) {
+func CreateDeployment(client kubernetes.Interface, deploymentName string, namespace string, volumeMount bool) (*appsv1.Deployment, error) {
 	logrus.Infof("Creating Deployment")
-	deploymentClient := client.ExtensionsV1beta1().Deployments(namespace)
-	deployment, err := deploymentClient.Create(GetDeployment(namespace, deploymentName))
-	time.Sleep(10 * time.Second)
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	var deploymentObj *appsv1.Deployment
+	if volumeMount {
+		deploymentObj = GetDeployment(namespace, deploymentName)
+	} else {
+		deploymentObj = GetDeploymentWithEnvVars(namespace, deploymentName)
+	}
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDeploymentConfig creates a deploymentConfig in given namespace and returns the DeploymentConfig
+func CreateDeploymentConfig(client appsclient.Interface, deploymentName string, namespace string, volumeMount bool) (*openshiftv1.DeploymentConfig, error) {
+	logrus.Infof("Creating DeploymentConfig")
+	deploymentConfigsClient := client.AppsV1().DeploymentConfigs(namespace)
+	var deploymentConfigObj *openshiftv1.DeploymentConfig
+	if volumeMount {
+		deploymentConfigObj = GetDeploymentConfig(namespace, deploymentName)
+	} else {
+		deploymentConfigObj = GetDeploymentConfigWithEnvVars(namespace, deploymentName)
+	}
+	deploymentConfig, err := deploymentConfigsClient.Create(deploymentConfigObj)
+	time.Sleep(5 * time.Second)
+	return deploymentConfig, err
+}
+
+// CreateDeploymentWithInitContainer creates a deployment in given namespace with init container and returns the Deployment
+func CreateDeploymentWithInitContainer(client kubernetes.Interface, deploymentName string, namespace string, volumeMount bool) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	var deploymentObj *appsv1.Deployment
+	if volumeMount {
+		deploymentObj = GetDeploymentWithInitContainer(namespace, deploymentName)
+	} else {
+		deploymentObj = GetDeploymentWithInitContainerAndEnv(namespace, deploymentName)
+	}
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDeploymentWithEnvVarSource creates a deployment in given namespace and returns the Deployment
+func CreateDeploymentWithEnvVarSource(client kubernetes.Interface, deploymentName string, namespace string) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	deploymentObj := GetDeploymentWithEnvVarSources(namespace, deploymentName)
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+
+}
+
+// CreateDeploymentWithPodAnnotations creates a deployment in given namespace and returns the Deployment
+func CreateDeploymentWithPodAnnotations(client kubernetes.Interface, deploymentName string, namespace string, both bool) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	deploymentObj := GetDeploymentWithPodAnnotations(namespace, deploymentName, both)
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
+	return deployment, err
+}
+
+// CreateDeploymentWithEnvVarSourceAndAnnotations returns a deployment in given
+// namespace with given annotations.
+func CreateDeploymentWithEnvVarSourceAndAnnotations(client kubernetes.Interface, deploymentName string, namespace string, annotations map[string]string) (*appsv1.Deployment, error) {
+	logrus.Infof("Creating Deployment")
+	deploymentClient := client.AppsV1().Deployments(namespace)
+	deploymentObj := GetDeploymentWithEnvVarSources(namespace, deploymentName)
+	deploymentObj.Annotations = annotations
+	deployment, err := deploymentClient.Create(deploymentObj)
+	time.Sleep(3 * time.Second)
 	return deployment, err
 }
 
 // CreateDaemonSet creates a deployment in given namespace and returns the DaemonSet
-func CreateDaemonSet(client kubernetes.Interface, daemonsetName string, namespace string) (*v1beta1.DaemonSet, error) {
+func CreateDaemonSet(client kubernetes.Interface, daemonsetName string, namespace string, volumeMount bool) (*appsv1.DaemonSet, error) {
 	logrus.Infof("Creating DaemonSet")
-	daemonsetClient := client.ExtensionsV1beta1().DaemonSets(namespace)
-	daemonset, err := daemonsetClient.Create(GetDaemonSet(namespace, daemonsetName))
-	time.Sleep(10 * time.Second)
+	daemonsetClient := client.AppsV1().DaemonSets(namespace)
+	var daemonsetObj *appsv1.DaemonSet
+	if volumeMount {
+		daemonsetObj = GetDaemonSet(namespace, daemonsetName)
+	} else {
+		daemonsetObj = GetDaemonSetWithEnvVars(namespace, daemonsetName)
+	}
+	daemonset, err := daemonsetClient.Create(daemonsetObj)
+	time.Sleep(3 * time.Second)
 	return daemonset, err
 }
 
 // CreateStatefulSet creates a deployment in given namespace and returns the StatefulSet
-func CreateStatefulSet(client kubernetes.Interface, statefulsetName string, namespace string) (*v1_beta1.StatefulSet, error) {
+func CreateStatefulSet(client kubernetes.Interface, statefulsetName string, namespace string, volumeMount bool) (*appsv1.StatefulSet, error) {
 	logrus.Infof("Creating StatefulSet")
-	statefulsetClient := client.AppsV1beta1().StatefulSets(namespace)
-	statefulset, err := statefulsetClient.Create(GetStatefulSet(namespace, statefulsetName))
-	time.Sleep(10 * time.Second)
+	statefulsetClient := client.AppsV1().StatefulSets(namespace)
+	var statefulsetObj *appsv1.StatefulSet
+	if volumeMount {
+		statefulsetObj = GetStatefulSet(namespace, statefulsetName)
+	} else {
+		statefulsetObj = GetStatefulSetWithEnvVar(namespace, statefulsetName)
+	}
+	statefulset, err := statefulsetClient.Create(statefulsetObj)
+	time.Sleep(3 * time.Second)
 	return statefulset, err
 }
 
 // DeleteDeployment creates a deployment in given namespace and returns the error if any
 func DeleteDeployment(client kubernetes.Interface, namespace string, deploymentName string) error {
 	logrus.Infof("Deleting Deployment")
-	deploymentError := client.ExtensionsV1beta1().Deployments(namespace).Delete(deploymentName, &metav1.DeleteOptions{})
-	time.Sleep(10 * time.Second)
+	deploymentError := client.AppsV1().Deployments(namespace).Delete(deploymentName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
 	return deploymentError
 }
 
+// DeleteDeploymentConfig deletes a deploymentConfig in given namespace and returns the error if any
+func DeleteDeploymentConfig(client appsclient.Interface, namespace string, deploymentConfigName string) error {
+	logrus.Infof("Deleting DeploymentConfig")
+	deploymentConfigError := client.AppsV1().DeploymentConfigs(namespace).Delete(deploymentConfigName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
+	return deploymentConfigError
+}
+
 // DeleteDaemonSet creates a daemonset in given namespace and returns the error if any
 func DeleteDaemonSet(client kubernetes.Interface, namespace string, daemonsetName string) error {
 	logrus.Infof("Deleting DaemonSet %s", daemonsetName)
-	daemonsetError := client.ExtensionsV1beta1().DaemonSets(namespace).Delete(daemonsetName, &metav1.DeleteOptions{})
-	time.Sleep(10 * time.Second)
+	daemonsetError := client.AppsV1().DaemonSets(namespace).Delete(daemonsetName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
 	return daemonsetError
 }
 
 // DeleteStatefulSet creates a statefulset in given namespace and returns the error if any
 func DeleteStatefulSet(client kubernetes.Interface, namespace string, statefulsetName string) error {
 	logrus.Infof("Deleting StatefulSet %s", statefulsetName)
-	statefulsetError := client.AppsV1beta1().StatefulSets(namespace).Delete(statefulsetName, &metav1.DeleteOptions{})
-	time.Sleep(10 * time.Second)
+	statefulsetError := client.AppsV1().StatefulSets(namespace).Delete(statefulsetName, &metav1.DeleteOptions{})
+	time.Sleep(3 * time.Second)
 	return statefulsetError
 }
 
@@ -330,7 +760,7 @@ func UpdateConfigMap(configmapClient core_v1.ConfigMapInterface, namespace strin
 		configmap = GetConfigmap(namespace, configmapName, data)
 	}
 	_, updateErr := configmapClient.Update(configmap)
-	time.Sleep(10 * time.Second)
+	time.Sleep(3 * time.Second)
 	return updateErr
 }
 
@@ -344,7 +774,7 @@ func UpdateSecret(secretClient core_v1.SecretInterface, namespace string, secret
 		secret = GetSecret(namespace, secretName, data)
 	}
 	_, updateErr := secretClient.Update(secret)
-	time.Sleep(10 * time.Second)
+	time.Sleep(3 * time.Second)
 	return updateErr
 }
 
@@ -352,7 +782,7 @@ func UpdateSecret(secretClient core_v1.SecretInterface, namespace string, secret
 func DeleteConfigMap(client kubernetes.Interface, namespace string, configmapName string) error {
 	logrus.Infof("Deleting configmap %q.\n", configmapName)
 	err := client.CoreV1().ConfigMaps(namespace).Delete(configmapName, &metav1.DeleteOptions{})
-	time.Sleep(10 * time.Second)
+	time.Sleep(3 * time.Second)
 	return err
 }
 
@@ -360,7 +790,7 @@ func DeleteConfigMap(client kubernetes.Interface, namespace string, configmapNam
 func DeleteSecret(client kubernetes.Interface, namespace string, secretName string) error {
 	logrus.Infof("Deleting secret %q.\n", secretName)
 	err := client.CoreV1().Secrets(namespace).Delete(secretName, &metav1.DeleteOptions{})
-	time.Sleep(10 * time.Second)
+	time.Sleep(3 * time.Second)
 	return err
 }
 
@@ -374,28 +804,38 @@ func RandSeq(n int) string {
 	return string(b)
 }
 
-func VerifyResourceUpdate(client kubernetes.Interface, config util.Config, envVarPostfix string, upgradeFuncs callbacks.RollingUpgradeFuncs) bool {
-	items := upgradeFuncs.ItemsFunc(client, config.Namespace)
+// VerifyResourceUpdate verifies whether the rolling upgrade happened or not
+func VerifyResourceUpdate(clients kube.Clients, config util.Config, envVarPostfix string, upgradeFuncs callbacks.RollingUpgradeFuncs) bool {
+	items := upgradeFuncs.ItemsFunc(clients, config.Namespace)
 	for _, i := range items {
 		containers := upgradeFuncs.ContainersFunc(i)
 		// match statefulsets with the correct annotation
 		annotationValue := util.ToObjectMeta(i).Annotations[config.Annotation]
-		if annotationValue != "" {
+		searchAnnotationValue := util.ToObjectMeta(i).Annotations[options.AutoSearchAnnotation]
+		reloaderEnabledValue := util.ToObjectMeta(i).Annotations[options.ReloaderAutoAnnotation]
+		reloaderEnabled, err := strconv.ParseBool(reloaderEnabledValue)
+		matches := false
+		if err == nil && reloaderEnabled {
+			matches = true
+		} else if annotationValue != "" {
 			values := strings.Split(annotationValue, ",")
-			matches := false
 			for _, value := range values {
 				if value == config.ResourceName {
 					matches = true
 					break
 				}
 			}
-			if matches {
-				envName := constants.EnvVarPrefix + util.ConvertToEnvVarName(annotationValue) + "_" + envVarPostfix
-				updated := GetResourceSHA(containers, envName)
+		} else if searchAnnotationValue == "true" {
+			if config.ResourceAnnotations[options.SearchMatchAnnotation] == "true" {
+				matches = true
+			}
+		}
 
-				if updated == config.SHAValue {
-					return true
-				}
+		if matches {
+			envName := constants.EnvVarPrefix + util.ConvertToEnvVarName(config.ResourceName) + "_" + envVarPostfix
+			updated := GetResourceSHA(containers, envName)
+			if updated == config.SHAValue {
+				return true
 			}
 		}
 	}

internal/pkg/util/config.go

@@ -1,9 +1,41 @@
 package util
 
+import (
+	"github.com/stakater/Reloader/internal/pkg/constants"
+	"github.com/stakater/Reloader/internal/pkg/options"
+	v1 "k8s.io/api/core/v1"
+)
+
 //Config contains rolling upgrade configuration parameters
 type Config struct {
-	Namespace    string
-	ResourceName string
-	Annotation   string
-	SHAValue     string
+	Namespace           string
+	ResourceName        string
+	ResourceAnnotations map[string]string
+	Annotation          string
+	SHAValue            string
+	Type                string
+}
+
+// GetConfigmapConfig provides utility config for configmap
+func GetConfigmapConfig(configmap *v1.ConfigMap) Config {
+	return Config{
+		Namespace:           configmap.Namespace,
+		ResourceName:        configmap.Name,
+		ResourceAnnotations: configmap.Annotations,
+		Annotation:          options.ConfigmapUpdateOnChangeAnnotation,
+		SHAValue:            GetSHAfromConfigmap(configmap.Data),
+		Type:                constants.ConfigmapEnvVarPostfix,
+	}
+}
+
+// GetSecretConfig provides utility config for secret
+func GetSecretConfig(secret *v1.Secret) Config {
+	return Config{
+		Namespace:           secret.Namespace,
+		ResourceName:        secret.Name,
+		ResourceAnnotations: secret.Annotations,
+		Annotation:          options.SecretUpdateOnChangeAnnotation,
+		SHAValue:            GetSHAfromSecret(secret.Data),
+		Type:                constants.SecretEnvVarPostfix,
+	}
 }

internal/pkg/util/interface.go

@@ -2,6 +2,7 @@ package util
 
 import (
 	"reflect"
+	"strconv"
 
 	"github.com/sirupsen/logrus"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -36,3 +37,14 @@ func ToObjectMeta(kubernetesObject interface{}) ObjectMeta {
 		ObjectMeta: field,
 	}
 }
+
+// ParseBool returns result in bool format after parsing
+func ParseBool(value interface{}) bool {
+	if reflect.Bool == reflect.TypeOf(value).Kind() {
+		return value.(bool)
+	} else if reflect.String == reflect.TypeOf(value).Kind() {
+		result, _ := strconv.ParseBool(value.(string))
+		return result
+	}
+	return false
+}

internal/pkg/util/util.go

@@ -2,7 +2,10 @@ package util
 
 import (
 	"bytes"
+	"sort"
 	"strings"
+
+	"github.com/stakater/Reloader/internal/pkg/crypto"
 )
 
 // ConvertToEnvVarName converts the given text into a usable env var
@@ -25,3 +28,32 @@ func ConvertToEnvVarName(text string) string {
 	}
 	return buffer.String()
 }
+
+func GetSHAfromConfigmap(data map[string]string) string {
+	values := []string{}
+	for k, v := range data {
+		values = append(values, k+"="+v)
+	}
+	sort.Strings(values)
+	return crypto.GenerateSHA(strings.Join(values, ";"))
+}
+
+func GetSHAfromSecret(data map[string][]byte) string {
+	values := []string{}
+	for k, v := range data {
+		values = append(values, k+"="+string(v[:]))
+	}
+	sort.Strings(values)
+	return crypto.GenerateSHA(strings.Join(values, ";"))
+}
+
+type List []string
+
+func (l *List) Contains(s string) bool {
+	for _, v := range *l {
+		if v == s {
+			return true
+		}
+	}
+	return false
+}

pkg/kube/client.go

@@ -3,13 +3,80 @@ package kube
 import (
 	"os"
 
+	"k8s.io/client-go/tools/clientcmd"
+
+	appsclient "github.com/openshift/client-go/apps/clientset/versioned"
+	"github.com/sirupsen/logrus"
 	"k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/rest"
-	"k8s.io/client-go/tools/clientcmd"
 )
 
-// GetClient gets the client for k8s, if ~/.kube/config exists so get that config else incluster config
-func GetClient() (*kubernetes.Clientset, error) {
+// Clients struct exposes interfaces for kubernetes as well as openshift if available
+type Clients struct {
+	KubernetesClient    kubernetes.Interface
+	OpenshiftAppsClient appsclient.Interface
+}
+
+var (
+	// IsOpenshift is true if environment is Openshift, it is false if environment is Kubernetes
+	IsOpenshift = isOpenshift()
+)
+
+// GetClients returns a `Clients` object containing both openshift and kubernetes clients with an openshift identifier
+func GetClients() Clients {
+	client, err := GetKubernetesClient()
+	if err != nil {
+		logrus.Fatalf("Unable to create Kubernetes client error = %v", err)
+	}
+
+	var appsClient *appsclient.Clientset
+
+	if IsOpenshift {
+		appsClient, err = GetOpenshiftAppsClient()
+		if err != nil {
+			logrus.Warnf("Unable to create Openshift Apps client error = %v", err)
+		}
+	}
+
+	return Clients{
+		KubernetesClient:    client,
+		OpenshiftAppsClient: appsClient,
+	}
+}
+
+func isOpenshift() bool {
+	client, err := GetKubernetesClient()
+	if err != nil {
+		logrus.Fatalf("Unable to create Kubernetes client error = %v", err)
+	}
+	_, err = client.RESTClient().Get().AbsPath("/apis/project.openshift.io").Do().Raw()
+	if err == nil {
+		logrus.Info("Environment: Openshift")
+		return true
+	}
+	logrus.Info("Environment: Kubernetes")
+	return false
+}
+
+// GetOpenshiftAppsClient returns an Openshift Client that can query on Apps
+func GetOpenshiftAppsClient() (*appsclient.Clientset, error) {
+	config, err := getConfig()
+	if err != nil {
+		return nil, err
+	}
+	return appsclient.NewForConfig(config)
+}
+
+// GetKubernetesClient gets the client for k8s, if ~/.kube/config exists so get that config else incluster config
+func GetKubernetesClient() (*kubernetes.Clientset, error) {
+	config, err := getConfig()
+	if err != nil {
+		return nil, err
+	}
+	return kubernetes.NewForConfig(config)
+}
+
+func getConfig() (*rest.Config, error) {
 	var config *rest.Config
 	var err error
 	kubeconfigPath := os.Getenv("KUBECONFIG")
@@ -31,5 +98,6 @@ func GetClient() (*kubernetes.Clientset, error) {
 	if err != nil {
 		return nil, err
 	}
-	return kubernetes.NewForConfig(config)
+
+	return config, nil
 }

pkg/kube/resourcemapper.go

@@ -1,7 +1,7 @@
 package kube
 
 import (
-	"k8s.io/api/core/v1"
+	v1 "k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/runtime"
 )