feat: Helm chart contribution for argocd-notifications (#365)

* Helm chart contribution for argocd-notifications

The following chart is a contribution from work done at https://github.com/Bandwidth/ to facilitate installing https://github.com/argoproj-labs/argocd-notifications via Helm chart based on https://github.com/argoproj-labs/argocd-notifications/blob/master/manifests/install.yaml

charts/argocd-notifications/templates/_helpers.tpl

@@ -0,0 +1,63 @@
+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "argocd-notifications.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 "argocd-notifications.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 "argocd-notifications.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Common labels
+*/}}
+{{- define "argocd-notifications.labels" -}}
+helm.sh/chart: {{ include "argocd-notifications.chart" . }}
+{{ include "argocd-notifications.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end -}}
+
+{{/*
+Selector labels
+*/}}
+{{- define "argocd-notifications.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "argocd-notifications.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "argocd-notifications.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create -}}
+    {{ default (include "argocd-notifications.fullname" .) .Values.serviceAccount.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccount.name }}
+{{- end -}}
+{{- end -}}

charts/argocd-notifications/templates/configmap.yaml

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+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-cm
+  labels:
+    {{- include "argocd-notifications.labels" . | nindent 4 }}
+data:
+  config.yaml: |
+    context:
+      argocdUrl: {{ .Values.argocdUrl | quote }}
+    subscriptions:
+      {{- toYaml .Values.subscriptions | nindent 6 }}
+    templates:
+      {{- toYaml .Values.templates | nindent 6 }}
+    triggers:
+      {{- toYaml .Values.triggers | nindent 6 }}

charts/argocd-notifications/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-controller
+  labels:
+    {{- include "argocd-notifications.labels" . | nindent 4 }}
+spec:
+  selector:
+    matchLabels:
+      {{- include "argocd-notifications.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "argocd-notifications.selectorLabels" . | nindent 8 }}
+    spec:
+      strategy:
+        type: Recreate
+    {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+      serviceAccountName: {{ include "argocd-notifications.serviceAccountName" . }}
+      containers:
+        - name: {{ include "argocd-notifications.name" . }}-controller
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag}}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          command:
+            - /app/argocd-notifications
+            - controller
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+    {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+    {{- end }}

charts/argocd-notifications/templates/role.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-controller
+  labels:
+    {{- include "argocd-notifications.labels" . | nindent 4 }}
+rules:
+- apiGroups:
+  - argoproj.io
+  resources:
+  - applications
+  - appprojects
+  verbs:
+  - get
+  - list
+  - watch
+  - update
+  - patch
+- apiGroups:
+  - ""
+  resources:
+  - secrets
+  - configmaps
+  verbs:
+  - get
+  - list
+  - watch

charts/argocd-notifications/templates/rolebinding.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-controller
+  labels:
+    {{- include "argocd-notifications.labels" . | nindent 4 }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: {{ include "argocd-notifications.name" . }}-controller
+subjects:
+- kind: ServiceAccount
+  name: {{ include "argocd-notifications.serviceAccountName" . }}

charts/argocd-notifications/templates/secret.yaml

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+{{ if .Values.secret.create }}
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ include "argocd-notifications.name" . }}-secret
+  labels:
+    {{- include "argocd-notifications.labels" . | nindent 4 }}
+type: Opaque
+stringData:
+  notifiers.yaml: |
+{{- if .Values.secret.notifiers.slack.enabled }}
+    slack:
+      token: {{ .Values.secret.notifiers.slack.token }}
+      username: {{ .Values.secret.notifiers.slack.username }}
+{{- end }}
+{{ end }}

charts/argocd-notifications/templates/serviceaccount.yaml

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+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "argocd-notifications.serviceAccountName" . }}
+  labels:
+    {{- include "argocd-notifications.labels" . | nindent 4 }}