[stable/mysql] Update to the recommended pvc patterns. (#456)

* Convert chart mysql to use the recommended pvc patterns

* mysql: fix persistence annotations

* mysql: Fix password printing

* mysql: Update truncation to 63

* mysql: Add newline after password is printed

* mysql: note that default uses alpha storage annotation

* Update _helpers.tpl

* mysql: Version bump 0.2.4

* Update _helpers.tpl

stable/mysql/Chart.yaml

@@ -1,5 +1,5 @@
 name: mysql
-version: 0.2.3
+version: 0.2.4
 description: Chart for MySQL
 keywords:
 - mysql

stable/mysql/README.md

@@ -54,7 +54,7 @@ The following tables lists the configurable parameters of the MySQL chart and th
 | `mysqlDatabase`            | Name for new database to create.   | `nil`                                                      |
 | `persistence.enabled`      | Create a volume to store data      | true                                                       |
 | `persistence.size`         | Size of persistent volume claim    | 8Gi RW                                                     |
-| `persistence.storageClass` | Type of persistent volume claim    | generic                                                    |
+| `persistence.storageClass` | Type of persistent volume claim    | nil  (uses alpha storage class annotation)                 |
 | `persistence.accessMode`   | ReadWriteOnce or ReadOnly          | ReadWriteOnce                                              |
 | `resources`                | CPU/Memory resource requests/limits | Memory: `256Mi`, CPU: `100m`                              |
 

stable/mysql/templates/NOTES.txt

@@ -3,7 +3,7 @@ MySQL can be accessed via port 3306 on the following DNS name from within your c
 
 To get your root password run:
 
-    printf $(printf '\%o' `kubectl get secret --namespace {{ .Release.Namespace }} {{ template "fullname" . }} -o jsonpath="{.data.mysql-root-password[*]}"`);echo
+    kubectl get secret --namespace {{ .Release.Namespace }} {{ template "fullname" . }} -o jsonpath="{.data.mysql-root-password}" | base64 --decode; echo
 
 To connect to your database:
 

stable/mysql/templates/_helpers.tpl

@@ -3,14 +3,14 @@
 Expand the name of the chart.
 */}}
 {{- define "name" -}}
-{{- default .Chart.Name .Values.nameOverride | trunc 24 -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
 {{- end -}}
 
 {{/*
 Create a default fully qualified app name.
-We truncate at 24 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
 */}}
 {{- define "fullname" -}}
 {{- $name := default .Chart.Name .Values.nameOverride -}}
-{{- printf "%s-%s" .Release.Name $name | trunc 24 -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
 {{- end -}}

stable/mysql/templates/pvc.yaml

@@ -9,7 +9,11 @@ metadata:
     release: "{{ .Release.Name }}"
     heritage: "{{ .Release.Service }}"
   annotations:
-    volume.alpha.kubernetes.io/storage-class: {{ .Values.persistence.storageClass | quote }}
+  {{- if .Values.persistence.storageClass }}
+    volume.beta.kubernetes.io/storage-class: {{ .Values.persistence.storageClass | quote }}
+  {{- else }}
+    volume.alpha.kubernetes.io/storage-class: default
+  {{- end }}
 spec:
   accessModes:
     - {{ .Values.persistence.accessMode | quote }}

stable/mysql/values.yaml

@@ -30,7 +30,10 @@ imagePullPolicy: IfNotPresent
 ## Persist data to a persitent volume
 persistence:
   enabled: true
-  storageClass: generic
+  ## If defined, volume.beta.kubernetes.io/storage-class: <storageClass>
+  ## Default: volume.alpha.kubernetes.io/storage-class: default
+  ##
+  # storageClass:
   accessMode: ReadWriteOnce
   size: 8Gi