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[stable/mariadb] add existing persistent volume claim (#715)

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* add existing persistent volume claim, for mariadb

* cleanup templating

* fix indentation in values.yaml
This commit is contained in:
Philip Champon
2017-04-05 10:55:50 -07:00
committed by Sean Knox
parent 8143adba8a
commit fb13fa3d9d
5 changed files with 34 additions and 19 deletions
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stable/mariadb/Chart.yaml
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@@ -1,5 +1,5 @@
name: mariadb
version: 0.5.14
version: 0.6.0
description: Fast, reliable, scalable, and easy to use open-source relational database system. MariaDB Server is intended for mission-critical, heavy-load production systems as well as for embedding into mass-deployed software.
keywords:
- mariadb
stable/mariadb/README.md
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@@ -45,21 +45,21 @@ The command removes all the Kubernetes components associated with the chart and
The following tables lists the configurable parameters of the MariaDB chart and their default values.
| Parameter | Description | Default |
| ----------------------- | ---------------------------------- | ---------------------------------------------------------- |
| `image` | MariaDB image | `bitnami/mariadb:{VERSION}` |
| `imagePullPolicy` | Image pull policy. | `IfNotPresent` |
| `mariadbRootPassword` | Password for the `root` user. | `nil` |
| `mariadbUser` | Username of new user to create. | `nil` |
| `mariadbPassword` | Password for the new user. | `nil` |
| `mariadbDatabase` | Name for new database to create. | `nil` |
| `persistence.enabled` | Use a PVC to persist data | `true` |
| `persistence.storageClass` | Storage class of backing PVC | `nil` (uses alpha storage class annotation) |
| `persistence.accessMode` | Use volume as ReadOnly or ReadWrite | `ReadWriteOnce` |
| `persistence.size` | Size of data volume | `8Gi` |
| `resources` | CPU/Memory resource requests/limits | Memory: `256Mi`, CPU: `250m` |
| `serviceType` | Kubernetes service type | `ClusterIP` |
| `config` | Multi-line string for my.cnf configuration | `nil` |
| Parameter | Description | Default |
| ----------------------- | ---------------------------------- | ---------------------------------------------------------- |
| `image` | MariaDB image | `bitnami/mariadb:{VERSION}` |
| `imagePullPolicy` | Image pull policy. | `IfNotPresent` |
| `mariadbRootPassword` | Password for the `root` user. | `nil` |
| `mariadbUser` | Username of new user to create. | `nil` |
| `mariadbPassword` | Password for the new user. | `nil` |
| `mariadbDatabase` | Name for new database to create. | `nil` |
| `persistence.enabled` | Use a PVC to persist data | `true` |
| `persistence.existingClaim` | Use an existing PVC | `nil` |
| `persistence.storageClass` | Storage class of backing PVC | `nil` (uses alpha storage class annotation) |
| `persistence.accessMode` | Use volume as ReadOnly or ReadWrite | `ReadWriteOnce` |
| `persistence.size` | Size of data volume | `8Gi` |
| `resources` | CPU/Memory resource requests/limits | Memory: `256Mi`, CPU: `250m` |
| `config` | Multi-line string for my.cnf configuration | `nil` |
The above parameters map to the env variables defined in [bitnami/mariadb](http://github.com/bitnami/bitnami-docker-mariadb). For more information please refer to the [bitnami/mariadb](http://github.com/bitnami/bitnami-docker-mariadb) image documentation.
@@ -107,4 +107,13 @@ helm install --name my-release -f mariadb-values.yaml stable/mariadb
The [Bitnami MariaDB](https://github.com/bitnami/bitnami-docker-mariadb) image stores the MariaDB data and configurations at the `/bitnami/mariadb` path of the container.
The chart mounts a [Persistent Volume](kubernetes.io/docs/user-guide/persistent-volumes/) volume at this location. The volume is created using dynamic volume provisioning.
The chart mounts a [Persistent Volume](kubernetes.io/docs/user-guide/persistent-volumes/) volume at this location. The volume is created using dynamic volume provisioning, by default. An existing PersistentVolumeClaim can be defined.
### Existing PersistentVolumeClaims
1. Create the PersistentVolume
1. Create the PersistentVolumeClaim
1. Install the chart
```bash
$ helm install --set persistence.existingClaim=PVC_NAME postgresql
```
stable/mariadb/templates/deployment.yaml
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@@ -83,7 +83,7 @@ spec:
- name: data
{{- if .Values.persistence.enabled }}
persistentVolumeClaim:
claimName: {{ template "fullname" . }}
claimName: {{ .Values.persistence.existingClaim | default (include "fullname" .) }}
{{- else }}
emptyDir: {}
{{- end -}}
stable/mariadb/templates/pvc.yaml
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@@ -1,4 +1,4 @@
{{- if .Values.persistence.enabled }}
{{- if and .Values.persistence.enabled (not .Values.persistence.existingClaim) }}
kind: PersistentVolumeClaim
apiVersion: v1
metadata:
stable/mariadb/values.yaml
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@@ -34,6 +34,12 @@ serviceType: ClusterIP
##
persistence:
enabled: true
## A manually managed Persistent Volume and Claim
## Requires persistence.enabled: true
## If defined, PVC must be created manually before volume will be bound
# existingClaim:
## If defined, volume.beta.kubernetes.io/storage-class: <storageClass>
## Default: volume.alpha.kubernetes.io/storage-class: default
##