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Publish Helm chart
This commit is contained in:
Stefan Prodan
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# Patterns to ignore when building packages.
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# This supports shell glob matching, relative path matching, and
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# negation (prefixed with !). Only one pattern per line.
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.DS_Store
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# Common VCS dirs
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.git/
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.gitignore
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.bzr/
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.bzrignore
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.hg/
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.hgignore
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.svn/
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# Common backup files
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*.swp
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*.bak
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*.tmp
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*~
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# Various IDEs
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.project
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.idea/
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*.tmproj
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apiVersion: v1
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appVersion: "0.0.1"
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description: Steerer is a Kubernetes operator that automates the promotion of canary deployments using Istio routing for traffic shifting and Prometheus metrics for canary analysis.
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name: steerer
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version: 0.0.1
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# Steerer
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Steerer is a Kubernetes operator that automates the promotion of canary deployments
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using Istio routing for traffic shifting and Prometheus metrics for canary analysis.
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## Installing the Chart
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To install the chart with the release name `steerer`:
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```console
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$ helm upgrade --install steerer ./charts/steerer --namespace=istio-system
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```
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The command deploys Steerer on the Kubernetes cluster in the istio-system namespace.
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The [configuration](#configuration) section lists the parameters that can be configured during installation.
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## Uninstalling the Chart
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To uninstall/delete the `steerer` deployment:
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```console
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$ helm delete --purge steerer
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```
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The command removes all the Kubernetes components associated with the chart and deletes the release.
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## Configuration
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The following tables lists the configurable parameters of the Steerer chart and their default values.
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Parameter | Description | Default
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--- | --- | ---
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`image.repository` | image repository | `stefanprodan/steerer`
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`image.tag` | image tag | `<VERSION>`
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`image.pullPolicy` | image pull policy | `IfNotPresent`
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`resources.requests/cpu` | pod CPU request | `10m`
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`resources.requests/memory` | pod memory request | `32Mi`
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`resources.limits/cpu` | pod CPU limit | `1000m`
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`resources.limits/memory` | pod memory limit | `512Mi`
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`affinity` | node/pod affinities | None
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`nodeSelector` | node labels for pod assignment | `{}`
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`tolerations` | list of node taints to tolerate | `[]`
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Specify each parameter using the `--set key=value[,key=value]` argument to `helm upgrade`. For example,
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```console
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$ helm upgrade --install steerer ./charts/steerer \
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--namespace=istio-system \
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--set=image.tag=0.0.2
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```
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Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
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```console
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$ helm upgrade --install steerer ./charts/steerer \
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--namespace=istio-system \
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-f values.yaml
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```
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> **Tip**: You can use the default [values.yaml](values.yaml)
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```
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@@ -1 +0,0 @@
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Steerer installed
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@@ -1,32 +0,0 @@
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{{/* vim: set filetype=mustache: */}}
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{{/*
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Expand the name of the chart.
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*/}}
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{{- define "steerer.name" -}}
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{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{/*
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Create a default fully qualified app name.
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We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
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If release name contains chart name it will be used as a full name.
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*/}}
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{{- define "steerer.fullname" -}}
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{{- if .Values.fullnameOverride -}}
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{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- $name := default .Chart.Name .Values.nameOverride -}}
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{{- if contains $name .Release.Name -}}
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{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
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{{- else -}}
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{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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{{- end -}}
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{{- end -}}
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{{/*
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Create chart name and version as used by the chart label.
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*/}}
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{{- define "steerer.chart" -}}
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{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
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{{- end -}}
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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: {{ template "steerer.name" . }}
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labels:
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app: {{ template "steerer.name" . }}
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chart: {{ template "steerer.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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{{- if .Values.crd.create }}
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apiVersion: apiextensions.k8s.io/v1beta1
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kind: CustomResourceDefinition
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metadata:
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name: rollouts.apps.weave.works
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spec:
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group: apps.weave.works
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version: v1beta1
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versions:
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- name: v1beta1
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served: true
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storage: true
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names:
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plural: rollouts
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singular: rollout
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kind: Rollout
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shortNames:
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- roll
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scope: Namespaced
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validation:
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openAPIV3Schema:
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properties:
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spec:
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required:
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- primary
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- canary
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- virtualService
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properties:
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primary:
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properties:
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name:
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type: string
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host:
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type: string
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canary:
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properties:
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name:
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type: string
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host:
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type: string
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virtualService:
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properties:
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name:
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type: string
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weight:
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type: number
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metric:
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properties:
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type:
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type: string
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name:
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type: string
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interval:
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type: string
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pattern: "^[0-9]+(m)"
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threshold:
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type: number
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{{- end }}
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@@ -1,71 +0,0 @@
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: {{ include "steerer.fullname" . }}
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labels:
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app: {{ include "steerer.name" . }}
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chart: {{ include "steerer.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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spec:
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replicas: 1
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strategy:
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type: Recreate
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selector:
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matchLabels:
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app: {{ include "steerer.name" . }}
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release: {{ .Release.Name }}
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template:
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metadata:
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labels:
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app: {{ include "steerer.name" . }}
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release: {{ .Release.Name }}
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spec:
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serviceAccountName: steerer
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containers:
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- name: steerer
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securityContext:
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readOnlyRootFilesystem: true
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runAsUser: 10001
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image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
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imagePullPolicy: {{ .Values.image.pullPolicy }}
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ports:
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- name: http
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containerPort: 8080
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command:
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- ./steerer
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- -log-level=info
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- -control-loop-interval={{ .Values.controlLoopInterval }}
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- -metrics-server={{ .Values.metricsServer }}
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livenessProbe:
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exec:
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command:
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- wget
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- --quiet
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- --tries=1
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- --timeout=2
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- --spider
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- http://localhost:8080/healthz
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readinessProbe:
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exec:
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command:
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- wget
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- --quiet
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- --tries=1
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- --timeout=2
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- --spider
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- http://localhost:8080/healthz
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resources:
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{{ toYaml .Values.resources | indent 12 }}
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{{- with .Values.nodeSelector }}
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nodeSelector:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- with .Values.affinity }}
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affinity:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- with .Values.tolerations }}
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tolerations:
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{{ toYaml . | indent 8 }}
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{{- end }}
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{{- if .Values.rbac.create }}
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRole
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metadata:
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name: {{ template "steerer.fullname" . }}
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labels:
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app: {{ template "steerer.name" . }}
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chart: {{ template "steerer.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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rules:
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- apiGroups: ['*']
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resources: ['*']
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verbs: ['*']
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- nonResourceURLs: ['*']
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verbs: ['*']
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---
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apiVersion: rbac.authorization.k8s.io/v1beta1
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kind: ClusterRoleBinding
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metadata:
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name: {{ template "steerer.fullname" . }}
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labels:
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app: {{ template "steerer.name" . }}
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chart: {{ template "steerer.chart" . }}
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release: {{ .Release.Name }}
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heritage: {{ .Release.Service }}
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: {{ template "steerer.fullname" . }}
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subjects:
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- name: {{ template "steerer.name" . }}
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namespace: {{ .Release.Namespace | quote }}
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kind: ServiceAccount
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{{- end }}
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@@ -1,32 +0,0 @@
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# Default values for steerer.
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image:
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repository: stefanprodan/steerer
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tag: 0.0.1
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pullPolicy: IfNotPresent
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controlLoopInterval: "10s"
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metricsServer: "http://prometheus.istio-system.svc.cluster.local:9090"
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crd:
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create: true
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rbac:
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create: true
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nameOverride: ""
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fullnameOverride: ""
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resources:
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limits:
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memory: "512Mi"
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cpu: "1000m"
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requests:
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memory: "32Mi"
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cpu: "10m"
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nodeSelector: {}
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tolerations: []
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affinity: {}
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