Add Helm chart

charts/dco2/Chart.yaml

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+apiVersion: v2
+name: dco2
+description: DCO2 GitHub App server
+type: application
+version: 0.1.0
+appVersion: 0.1.0
+kubeVersion: ">= 1.25.0-0"
+keywords:
+  - dco
+  - dco2
+maintainers:
+  - name: Sergio
+    email: tegioz@icloud.com
+  - name: Cintia
+    email: cynthiasg@icloud.com

charts/dco2/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "dco2.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a fully qualified app name.
+*/}}
+{{- define "dco2.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := include "dco2.name" . -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Kubernetes resource name prefix
+Using the prefix allows deploying multiple instances of the chart in a single namespace.
+If the dynamic prefix is disabled, the helper returns an empty string.
+Resource names are capped at 63 characters.
+We truncate the prefix to leave space for the longest suffix ("server-config" = 12 chars).
+*/}}
+{{- define "dco2.resourceNamePrefix" -}}
+{{- if .Values.dynamicResourceNamePrefixEnabled -}}
+{{- include "dco2.fullname" . | trunc 43 | trimSuffix "-" | printf "%s-" -}}
+{{- else -}}
+{{- "" -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Compose a resource name using the optional prefix.
+*/}}
+{{- define "dco2.resourceName" -}}
+{{- $root := index . 0 -}}
+{{- $name := index . 1 -}}
+{{- printf "%s%s" (include "dco2.resourceNamePrefix" $root) $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create chart name and version.
+*/}}
+{{- define "dco2.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels.
+*/}}
+{{- define "dco2.labels" -}}
+helm.sh/chart: {{ include "dco2.chart" . }}
+{{ include "dco2.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels.
+*/}}
+{{- define "dco2.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "dco2.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}

charts/dco2/templates/server_deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  labels:
+    app.kubernetes.io/component: server
+    {{- include "dco2.labels" . | nindent 4 }}
+  name: {{ include "dco2.resourceName" (list . "server") }}
+spec:
+  replicas: {{ .Values.server.deploy.replicaCount }}
+  selector:
+    matchLabels:
+      app.kubernetes.io/component: server
+      {{- include "dco2.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        app.kubernetes.io/component: server
+        {{- include "dco2.selectorLabels" . | nindent 8 }}
+      {{- with .Values.server.deploy.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.server.deploy.podSecurityContext }}
+      securityContext:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      containers:
+        - command:
+            - dco2-server
+          args:
+            - --config-file
+            - {{ printf "%s/%s" .Values.configDir .Values.configFileName | quote }}
+          image: {{ printf "%s:%s" .Values.server.deploy.image.repository (default "latest" .Values.imageTag) }}
+          imagePullPolicy: {{ .Values.pullPolicy }}
+          name: server
+          {{- with .Values.server.deploy.containerSecurityContext }}
+          securityContext:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          ports:
+            - containerPort: 9000
+              name: http
+              protocol: TCP
+          {{- with .Values.server.deploy.readinessProbe }}
+          readinessProbe:
+            {{- toYaml . | nindent 12 }}
+          {{- end }}
+          resources:
+            {{- toYaml .Values.server.deploy.resources | nindent 12 }}
+          volumeMounts:
+            - mountPath: {{ .Values.configDir | quote }}
+              name: server-config
+              readOnly: true
+      volumes:
+        - name: server-config
+          secret:
+            secretName: {{ include "dco2.resourceName" (list . "server-config") }}

charts/dco2/templates/server_ingress.yaml

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+{{- if .Values.server.ingress.enabled -}}
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  labels:
+    app.kubernetes.io/component: server
+    {{- include "dco2.labels" . | nindent 4 }}
+  name: {{ include "dco2.resourceName" (list . "server") }}
+  {{- with .Values.server.ingress.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  {{- if .Values.server.ingress.className }}
+  ingressClassName: {{ .Values.server.ingress.className }}
+  {{- end }}
+  defaultBackend:
+    service:
+      name: {{ include "dco2.resourceName" (list . "server") }}
+      port:
+        number: {{ .Values.server.ingress.backendServicePort }}
+  {{- with .Values.server.ingress.hosts }}
+  rules:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+  {{- with .Values.server.ingress.tls }}
+  tls:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

charts/dco2/templates/server_secret.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "dco2.resourceName" (list . "server-config") }}
+type: Opaque
+stringData:
+  {{ .Values.configFileName }}: |-
+    github_app:
+      {{- if .Values.server.config.githubApp.apiHost }}
+      api_host: {{ .Values.server.config.githubApp.apiHost }}
+      {{- end }}
+      app_id: {{ .Values.server.config.githubApp.appId }}
+      private_key: |-
+{{ .Values.server.config.githubApp.privateKey | default "" | nindent 8 }}
+      webhook_secret: {{ .Values.server.config.githubApp.webhookSecret | quote }}
+    log_format: {{ .Values.server.config.logFormat }}
+    server_addr: {{ .Values.server.config.addr }}

charts/dco2/templates/server_service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  labels:
+    app.kubernetes.io/component: server
+    {{- include "dco2.labels" . | nindent 4 }}
+  name: {{ include "dco2.resourceName" (list . "server") }}
+  {{- with .Values.server.service.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+spec:
+  allocateLoadBalancerNodePorts: {{ .Values.server.service.allocateLoadBalancerNodePorts }}
+  ports:
+    {{- toYaml .Values.server.service.ports | nindent 4 }}
+  selector:
+    app.kubernetes.io/component: server
+    {{- include "dco2.selectorLabels" . | nindent 4 }}
+  type: {{ default "ClusterIP" .Values.server.service.type }}

charts/dco2/values.yaml

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+# DCO2 chart default configuration values
+
+# Image pull secrets (if needed)
+imagePullSecrets: []
+
+# Image tag to deploy. Defaults to "latest" when empty.
+imageTag: ""
+
+# Name overrides
+nameOverride: ""
+
+# Image pull policy
+pullPolicy: IfNotPresent
+
+# Overwrite the installation's fullname generation (used for resource naming)
+fullnameOverride: ""
+
+# Enable dynamic resource name prefix
+#
+# When enabled, resources include the Helm installation name as a prefix so multiple
+# installations can share a namespace. Override the prefix with `fullnameOverride`.
+dynamicResourceNamePrefixEnabled: false
+
+# Directory path where the configuration files should be mounted
+configDir: "/home/dco2/.config/dco2"
+
+# Configuration file name mounted for the dco2-server binary
+configFileName: "dco2-server.yml"
+
+# DCO2 server configuration
+server:
+  # Configuration passed to the application via a secret
+  config:
+    # Address to listen on
+    addr: "0.0.0.0:9000"
+
+    # GitHub application configuration
+    githubApp:
+      # Optional GitHub API host override
+      apiHost: ""
+      # GitHub application identifier
+      appId: 0
+      # GitHub application private key
+      privateKey: ""
+      # GitHub webhook secret
+      webhookSecret: ""
+
+    # Log output format [json|pretty]
+    logFormat: json
+
+  # Deployment configuration
+  deploy:
+    containerSecurityContext: {}
+    image:
+      repository: ghcr.io/cncf/dco2/server
+    podAnnotations: {}
+    podSecurityContext: {}
+    readinessProbe:
+      httpGet:
+        path: /health-check
+        port: 9000
+    replicaCount: 1
+    resources: {}
+
+  # Ingress configuration
+  ingress:
+    annotations: {}
+    backendServicePort: 80
+    className: ""
+    enabled: false
+    hosts: []
+    tls: []
+
+  # Service configuration
+  service:
+    allocateLoadBalancerNodePorts: true
+    annotations: {}
+    ports:
+      - name: http
+        port: 80
+        protocol: TCP
+        targetPort: 9000
+    type: ClusterIP