promote init containers to podspec (#1739)

stable/mysql/README.md

@@ -8,7 +8,7 @@ This chart bootstraps a single node MySQL deployment on a [Kubernetes](http://ku
 
 ## Prerequisites
 
-- Kubernetes 1.4+ with Beta APIs enabled
+- Kubernetes 1.6+ with Beta APIs enabled
 - PV provisioner support in the underlying infrastructure
 
 ## Installing the Chart

stable/mysql/templates/deployment.yaml

@@ -12,25 +12,18 @@ spec:
     metadata:
       labels:
         app: {{ template "fullname" . }}
-      annotations:
-        pod.beta.kubernetes.io/init-containers: '[
-              {
-                  "name": "remove-lost-found",
-                  "image": "busybox:1.25.0",
-                  "command": ["rm", "-fr", "/var/lib/mysql/lost+found"],
-                  "volumeMounts": [
-                      {
-                          "name": "data",
-                          {{- if .Values.persistence.subPath }}
-                          "subPath": "{{ .Values.persistence.subPath }}",
-                          {{- end }}
-                          "mountPath": "/var/lib/mysql"
-                      }
-                  ],
-                  "imagePullPolicy": {{ .Values.imagePullPolicy | quote }}
-              }
-          ]'
     spec:
+      initContainers:
+      - name: "remove-lost-found"
+        image: "busybox:1.25.0"
+        imagePullPolicy: {{ .Values.imagePullPolicy | quote }}
+        command:  ["rm", "-fr", "/var/lib/mysql/lost+found"]
+        volumeMounts:
+        - name: data
+          mountPath: /var/lib/mysql
+          {{- if .Values.persistence.subPath }}
+          subPath: {{ .Values.persistence.subPath }}
+          {{- end }}
       containers:
       - name: {{ template "fullname" . }}
         image: "{{ .Values.image }}:{{ .Values.imageTag }}"