chore: add helm chart

helm/cr.yaml

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+# https://github.com/helm/chart-releaser#config-file
+
+pages-branch: gh-pages
+pages-index-path: helm/charts/index.yaml
+skip-existing: true

helm/knox/.helmignore

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+# 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
+
+# Chart specific files
+README.md

helm/knox/Chart.yaml

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+apiVersion: v2
+appVersion: 0.1.0
+description: A helm chart for Knox
+name: knox
+keywords:
+- terraform
+- state
+version: 0.1.0
+sources:
+- https://github.com/zeiss/knox
+home: http://github.com/zeiss/knox

helm/knox/Readme.md

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+# Knox
+
+## TL;DR
+
+```console
+helm repo add knox https://zeiss.github.io/knox/helm/charts/
+helm install my-knox knox/knox
+```

helm/knox/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "knox.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 "knox.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 }}
+
+{{/*
+Expand the namespace of the release.
+Allows overriding it for multi-namespace deployments in combined charts.
+*/}}
+{{- define "knox.namespace" -}}
+{{- default .Release.Namespace .Values.namespaceOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "knox.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "knox.labels" -}}
+helm.sh/chart: {{ include "knox.chart" . }}
+{{ include "knox.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "knox.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "knox.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "knox.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "knox.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

helm/knox/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "knox.fullname" . }}
+  labels:
+    {{- include "knox.labels" . | nindent 4 }}
+  {{- with .Values.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount}}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "knox.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      annotations:
+      {{- with .Values.podAnnotations }}
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "knox.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "knox.serviceAccountName" . }}
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      {{ if or (and .Values.database.applyMigrations .Values.database.waitForMigrations) .Values.extraInitContainers }}
+      initContainers:
+        {{- if and .Values.database.applyMigrations .Values.database.waitForMigrations }}
+        - name: wait-for-migration
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.initContainer.repository }}:{{ .Values.initContainer.tag }}"
+          imagePullPolicy: {{ .Values.initContainer.pullPolicy }}
+          args: ["job-wr", '{{ include "knox.fullname" . }}-migrate']
+          resources:
+            {{- toYaml .Values.database.migrations.resources | nindent 12 }}
+        {{- end }}
+        {{- with .Values.extraInitContainers }}
+          {{- toYaml . | nindent 8 }}
+        {{- end }}
+      {{- end }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args: []
+          ports:
+
+            - name: http
+              containerPort: {{ (split ":" .Values.http.addr)._1 }}
+              protocol: TCP
+
+          env:
+            {{- if .Values.database.uri }}
+            - name: knox_ACCOUNTS_DATABASE_URI
+              value: "{{ .Values.database.uri }}"
+            {{- else if .Values.database.uriSecret }}
+            - name: knox_ACCOUNTS_DATABASE_URI
+              valueFrom:
+                secretKeyRef:
+                  name: "{{ .Values.database.uriSecret }}"
+                  key: "uri"
+            {{- end }}
+
+            {{- if .Values.database.prefix }}
+            - name: knox_ACCOUNTS_DATABASE_PREFIX
+              value: "{{ .Values.database.prefix }}"
+            {{- end }}
+
+            {{- if .Values.http.addr }}
+            - name: knox_ACCOUNTS_ADDR
+              value: "{{ .Values.http.addr }}"
+            {{- end }}
+
+            {{- with .Values.extraEnvVars }}
+              {{- toYaml . | nindent 12 }}
+            {{- end }}
+
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+
+          {{- with .Values.extraVolumeMounts }}
+          volumeMounts:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+
+        {{- if .Values.sidecars }}
+        {{- include "common.tplvalues.render" ( dict "value" .Values.sidecars "context" $) | nindent 8 }}
+        {{- end }}
+
+      {{- with .Values.extraVolumes }}
+      volumes:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

helm/knox/templates/hpa.yaml

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+{{- if .Values.autoscaling.enabled }}
+apiVersion: autoscaling/v2
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ include "knox.fullname" . }}
+  labels:
+    {{- include "knox.labels" . | nindent 4 }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ include "knox.fullname" . }}
+  minReplicas: {{ .Values.autoscaling.minReplicas }}
+  maxReplicas: {{ .Values.autoscaling.maxReplicas }}
+  metrics:
+    {{- if .Values.autoscaling.targetCPUUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: cpu
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetCPUUtilizationPercentage }}
+    {{- end }}
+    {{- if .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    - type: Resource
+      resource:
+        name: memory
+        target:
+          type: Utilization
+          averageUtilization: {{ .Values.autoscaling.targetMemoryUtilizationPercentage }}
+    {{- end }}
+{{- end }}

helm/knox/templates/job.yaml

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+{{- if .Values.database.applyMigrations -}}
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: {{ include "knox.fullname" . }}-migrate
+  labels:
+    {{- include "knox.labels" . | nindent 4 }}
+  {{- with .Values.migrate.labels }}
+    {{- toYaml . | nindent 4}}
+  {{- end}}
+  {{- with .Values.migrate.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  template:
+    metadata:
+      {{- with .Values.migrate.annotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.migrate.labels }}
+      labels:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: {{ include "knox.serviceAccountName" . }}
+      containers:
+        - name: migrate-database
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          args: ["migrate"]
+          env:
+            {{- if .Values.database.uri }}
+            - name: knox_ACCOUNTS_DATABASE_URI
+              value: "{{ .Values.database.uri }}"
+            {{- else if .Values.database.uriSecret }}
+            - name: knox_ACCOUNTS_DATABASE_URI
+              valueFrom:
+                secretKeyRef:
+                  name: "{{ .Values.database.uriSecret }}"
+                  key: "uri"
+            {{- end }}
+
+            {{- if .Values.migrate.timeout }}
+            - name: knox_TIMEOUT
+              value: "{{ .Values.migrate.timeout }}"
+            {{- end }}
+
+            {{- with .Values.extraEnvVars }}
+              {{- toYaml . | nindent 12 }}
+            {{- end }}
+
+          resources:
+            {{- toYaml .Values.database.migrations.resources | nindent 12 }}
+        {{- if .Values.migrate.sidecars }}
+        {{- include "common.tplvalues.render" ( dict "value" .Values.migrate.sidecars "context" $) | nindent 8 }}
+        {{- end }}
+      restartPolicy: Never
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+  backoffLimit: 1
+{{- end }}

helm/knox/templates/rbac.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ include "knox.fullname" . }}-job-status-reader
+rules:
+- apiGroups:
+  - batch
+  resources:
+  - jobs
+  verbs:
+  - get
+  - list
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ include "knox.fullname" . }}-job-status-reader
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ include "knox.fullname" . }}-job-status-reader
+subjects:
+- kind: ServiceAccount
+  name: {{ include "knox.serviceAccountName" . }}
+{{- end }}