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/deployment.yaml

@@ -0,0 +1,43 @@
+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 }}