Add option for additional containers to be run with Helm chart

chart/keel/templates/deployment.yaml

@@ -26,6 +26,7 @@ spec:
     spec:
       serviceAccountName: {{ template "serviceAccount.name" . }}
       containers:
+{{ toYaml .Values.extraContainers | indent 8 }}
         - name: keel
           # Note that we use appVersion to get images tag.
           image: "{{ .Values.image.repository }}:{{ default .Chart.AppVersion .Values.image.tag }}"

chart/keel/values.yaml

@@ -15,6 +15,13 @@ insecureRegistry: false
 polling:
   enabled: true
 
+# Extra Containers to run alongside Keel
+# extraContainers:
+#   - name: busybox
+#     image: busybox
+#     imagePullPolicy: IfNotPresent
+#     command: ['sh', '-c', 'echo Container 1 is Running ; sleep 3600']
+
 # Helm provider support
 helmProvider:
   enabled: true