diff --git a/helm/demo-chart/.gitignore b/helm/demo-chart/.gitignore new file mode 100644 index 0000000..e6b3ed6 --- /dev/null +++ b/helm/demo-chart/.gitignore @@ -0,0 +1 @@ +charts/* diff --git a/helm/demo-chart/.helmignore b/helm/demo-chart/.helmignore new file mode 100644 index 0000000..f0c1319 --- /dev/null +++ b/helm/demo-chart/.helmignore @@ -0,0 +1,21 @@ +# Patterns to ignore when building packages. +# This supports shell glob matching, relative path matching, and +# negation (prefixed with !). Only one pattern per line. +.DS_Store +# Common VCS dirs +.git/ +.gitignore +.bzr/ +.bzrignore +.hg/ +.hgignore +.svn/ +# Common backup files +*.swp +*.bak +*.tmp +*~ +# Various IDEs +.project +.idea/ +*.tmproj diff --git a/helm/demo-chart/Chart.yaml b/helm/demo-chart/Chart.yaml new file mode 100644 index 0000000..286da6a --- /dev/null +++ b/helm/demo-chart/Chart.yaml @@ -0,0 +1,5 @@ +apiVersion: v1 +appVersion: "1.0" +description: A Helm chart for Kubernetes +name: demo-chart +version: 0.0.1 diff --git a/helm/demo-chart/README.md b/helm/demo-chart/README.md new file mode 100644 index 0000000..012118c --- /dev/null +++ b/helm/demo-chart/README.md @@ -0,0 +1,16 @@ +# Node demo app Chart + +## Download dependencies +``` +helm dependency update +``` + +## Install Chart +``` +helm install . +``` + +## Upgrade Chart +``` +helm upgrade --set image.tag=v0.0.2,mariadb.db.password=$DB_APP_PASS RELEASE . +``` diff --git a/helm/demo-chart/requirements.lock b/helm/demo-chart/requirements.lock new file mode 100644 index 0000000..3762f35 --- /dev/null +++ b/helm/demo-chart/requirements.lock @@ -0,0 +1,6 @@ +dependencies: +- name: mariadb + repository: https://kubernetes-charts.storage.googleapis.com/ + version: 4.3.1 +digest: sha256:e959527904c9c2cc7093cbfbb86a827a05e010c74b795535b7f806a10aefce6c +generated: 2018-07-31T09:04:27.325312728Z diff --git a/helm/demo-chart/requirements.yaml b/helm/demo-chart/requirements.yaml new file mode 100644 index 0000000..183005c --- /dev/null +++ b/helm/demo-chart/requirements.yaml @@ -0,0 +1,7 @@ +dependencies: +- name: mariadb + version: 4.x.x + repository: https://kubernetes-charts.storage.googleapis.com/ + condition: mariadb.enabled + tags: + - node-app-database diff --git a/helm/demo-chart/templates/NOTES.txt b/helm/demo-chart/templates/NOTES.txt new file mode 100644 index 0000000..9a9ce4c --- /dev/null +++ b/helm/demo-chart/templates/NOTES.txt @@ -0,0 +1,19 @@ +1. Get the application URL by running these commands: +{{- if .Values.ingress.enabled }} +{{- range .Values.ingress.hosts }} + http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }} +{{- end }} +{{- else if contains "NodePort" .Values.service.type }} + export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "demo-chart.fullname" . }}) + export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}") + echo http://$NODE_IP:$NODE_PORT +{{- else if contains "LoadBalancer" .Values.service.type }} + NOTE: It may take a few minutes for the LoadBalancer IP to be available. + You can watch the status of by running 'kubectl get svc -w {{ template "demo-chart.fullname" . }}' + export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "demo-chart.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}') + echo http://$SERVICE_IP:{{ .Values.service.port }} +{{- else if contains "ClusterIP" .Values.service.type }} + export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "demo-chart.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}") + echo "Visit http://127.0.0.1:8080 to use your application" + kubectl port-forward $POD_NAME 8080:80 +{{- end }} diff --git a/helm/demo-chart/templates/_helpers.tpl b/helm/demo-chart/templates/_helpers.tpl new file mode 100644 index 0000000..803ddc6 --- /dev/null +++ b/helm/demo-chart/templates/_helpers.tpl @@ -0,0 +1,40 @@ +{{/* vim: set filetype=mustache: */}} +{{/* +Expand the name of the chart. +*/}} +{{- define "demo-chart.name" -}} +{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}} +{{- end -}} + +{{/* +Create a default fully qualified app name. +We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec). +If release name contains chart name it will be used as a full name. +*/}} +{{- define "demo-chart.fullname" -}} +{{- if .Values.fullnameOverride -}} +{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}} +{{- else -}} +{{- $name := default .Chart.Name .Values.nameOverride -}} +{{- if contains $name .Release.Name -}} +{{- .Release.Name | trunc 63 | trimSuffix "-" -}} +{{- else -}} +{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}} +{{- end -}} +{{- end -}} +{{- end -}} + +{{/* +Create chart name and version as used by the chart label. +*/}} +{{- define "demo-chart.chart" -}} +{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}} +{{- end -}} + +{{/* +Create a default fully qualified app name. +We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec). +*/}} +{{- define "mariadb.fullname" -}} +{{- printf "%s-%s" .Release.Name "mariadb" | trunc 63 | trimSuffix "-" -}} +{{- end -}} diff --git a/helm/demo-chart/templates/deployment.yaml b/helm/demo-chart/templates/deployment.yaml new file mode 100644 index 0000000..7e0908c --- /dev/null +++ b/helm/demo-chart/templates/deployment.yaml @@ -0,0 +1,80 @@ +apiVersion: apps/v1beta2 +kind: Deployment +metadata: + name: {{ template "demo-chart.fullname" . }} + labels: + app: {{ template "demo-chart.name" . }} + chart: {{ template "demo-chart.chart" . }} + release: {{ .Release.Name }} + heritage: {{ .Release.Service }} +spec: + replicas: {{ .Values.replicaCount }} + selector: + matchLabels: + app: {{ template "demo-chart.name" . }} + release: {{ .Release.Name }} + template: + metadata: + labels: + app: {{ template "demo-chart.name" . }} + release: {{ .Release.Name }} + spec: + containers: + - name: {{ .Chart.Name }} + image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}" + imagePullPolicy: {{ .Values.image.pullPolicy }} + ports: + - name: http + containerPort: 3000 + protocol: TCP + env: + - name: MYSQL_HOST + {{- if .Values.mariadb.enabled }} + value: {{ template "mariadb.fullname" . }} + {{- else }} + value: unknown + {{- end }} + - name: MYSQL_USER + {{- if .Values.mariadb.enabled }} + value: {{ .Values.mariadb.db.user | quote }} + {{- else }} + value: unknown + {{- end }} + - name: MYSQL_DATABASE + {{- if .Values.mariadb.enabled }} + value: {{ .Values.mariadb.db.name | quote }} + {{- else }} + value: unknown + {{- end }} + - name: MYSQL_PASSWORD + valueFrom: + secretKeyRef: + {{- if .Values.mariadb.enabled }} + name: {{ template "mariadb.fullname" . }} + key: mariadb-password + {{- else }} + name: unknown + key: db-password + {{- end }} + livenessProbe: + httpGet: + path: / + port: http + readinessProbe: + httpGet: + path: / + port: http + resources: +{{ toYaml .Values.resources | indent 12 }} + {{- with .Values.nodeSelector }} + nodeSelector: +{{ toYaml . | indent 8 }} + {{- end }} + {{- with .Values.affinity }} + affinity: +{{ toYaml . | indent 8 }} + {{- end }} + {{- with .Values.tolerations }} + tolerations: +{{ toYaml . | indent 8 }} + {{- end }} diff --git a/helm/demo-chart/templates/ingress.yaml b/helm/demo-chart/templates/ingress.yaml new file mode 100644 index 0000000..81dfaa1 --- /dev/null +++ b/helm/demo-chart/templates/ingress.yaml @@ -0,0 +1,38 @@ +{{- if .Values.ingress.enabled -}} +{{- $fullName := include "demo-chart.fullname" . -}} +{{- $ingressPath := .Values.ingress.path -}} +apiVersion: extensions/v1beta1 +kind: Ingress +metadata: + name: {{ $fullName }} + labels: + app: {{ template "demo-chart.name" . }} + chart: {{ template "demo-chart.chart" . }} + release: {{ .Release.Name }} + heritage: {{ .Release.Service }} +{{- with .Values.ingress.annotations }} + annotations: +{{ toYaml . | indent 4 }} +{{- end }} +spec: +{{- if .Values.ingress.tls }} + tls: + {{- range .Values.ingress.tls }} + - hosts: + {{- range .hosts }} + - {{ . }} + {{- end }} + secretName: {{ .secretName }} + {{- end }} +{{- end }} + rules: + {{- range .Values.ingress.hosts }} + - host: {{ . }} + http: + paths: + - path: {{ $ingressPath }} + backend: + serviceName: {{ $fullName }} + servicePort: http + {{- end }} +{{- end }} diff --git a/helm/demo-chart/templates/service.yaml b/helm/demo-chart/templates/service.yaml new file mode 100644 index 0000000..be031aa --- /dev/null +++ b/helm/demo-chart/templates/service.yaml @@ -0,0 +1,19 @@ +apiVersion: v1 +kind: Service +metadata: + name: {{ template "demo-chart.fullname" . }} + labels: + app: {{ template "demo-chart.name" . }} + chart: {{ template "demo-chart.chart" . }} + release: {{ .Release.Name }} + heritage: {{ .Release.Service }} +spec: + type: {{ .Values.service.type }} + ports: + - port: {{ .Values.service.port }} + targetPort: http + protocol: TCP + name: http + selector: + app: {{ template "demo-chart.name" . }} + release: {{ .Release.Name }} diff --git a/helm/demo-chart/values.yaml b/helm/demo-chart/values.yaml new file mode 100644 index 0000000..2794195 --- /dev/null +++ b/helm/demo-chart/values.yaml @@ -0,0 +1,62 @@ +# Default values for demo-chart. +# This is a YAML-formatted file. +# Declare variables to be passed into your templates. + +replicaCount: 3 + +image: + repository: wardviaene/node-demo-app + tag: v0.0.1 + pullPolicy: IfNotPresent + +service: + type: LoadBalancer + port: 80 + +ingress: + enabled: false + annotations: {} + # kubernetes.io/ingress.class: nginx + # kubernetes.io/tls-acme: "true" + path: / + hosts: + - node-demo-app.newtech.academy + tls: [] + # - secretName: chart-example-tls + # hosts: + # - chart-example.local + +resources: {} + # We usually recommend not to specify default resources and to leave this as a conscious + # choice for the user. This also increases chances charts run on environments with little + # resources, such as Minikube. If you do want to specify resources, uncomment the following + # lines, adjust them as necessary, and remove the curly braces after 'resources:'. + # limits: + # cpu: 100m + # memory: 128Mi + # requests: + # cpu: 100m + # memory: 128Mi + +nodeSelector: {} + +tolerations: [] + +affinity: {} + +## +## MariaDB chart configuration +## +mariadb: + enabled: true + replication: + enabled: false + db: + name: app + user: app-user + master: + persistence: + enabled: true + accessMode: ReadWriteOnce + size: 8Gi +