feat(nextjs): add support for initContainers in Helm chart to allow p…

…re-startup tasks

chore(nextjs): bump chart version from 1.1.5 to 1.1.6 to reflect new feature addition

charts/nextjs/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: nextjs
 description: Generic Helm chart for Nextjs apps on Kubernetes
 type: application
-version: 1.1.5
+version: 1.1.6
 appVersion: '1.0.0'
 icon: https://icoretech.github.io/helm/charts/nextjs/logo.png
 keywords:

charts/nextjs/templates/web-deployment.yaml

@@ -29,6 +29,10 @@ spec:
       imagePullSecrets:
       - name: {{ .Values.web.imagePullSecrets }}
       {{- end }}
+      {{- if .Values.web.initContainers }}
+      initContainers:
+        {{ toYaml .Values.web.initContainers | nindent 8 }}
+      {{- end }}
       containers:
         - name: {{ include "app.web.name" . }}
           image: "{{ .Values.web.image }}"

charts/nextjs/values.yaml

@@ -14,6 +14,22 @@ web:
       maxUnavailable: 0
       maxSurge: 1
 
+  # optional array of additional initcontainers
+  initContainers: []
+  # Example usage:
+    # initContainers:
+    # - name: init-mydb
+    #   image: busybox:1.36
+    #   command: ["/bin/sh"]
+    #   args: ["-c", "echo Setting up DB; sleep 5"]
+    #   volumeMounts:
+    #     - name: next-data
+    #       mountPath: /data
+    # - name: wait-for-service
+    #   image: busybox:1.36
+    #   command: ["/bin/sh"]
+    #   args: ["-c", "until nc -z some-service 5432; do sleep 3; done"]
+
   # optional array of additional containers
   extraContainers: []
   # Example usage: