WordPress
WordPress is one of the most versatile open source content management systems on the market. A publishing platform for building blogs and websites.
TL;DR;
$ helm install wordpress-x.x.x.tgz
Introduction
This chart bootstraps a WordPress deployment on a Kubernetes cluster using the Helm package manager.
It also packages the Bitnami MariaDB chart which is required for bootstrapping a MariaDB deployment for the database requirements of the WordPress application.
Prerequisites
- Kubernetes 1.3+ with Alpha APIs enabled
- PV provisioner support in the underlying infrastructure
Get this chart
Download the latest release of the chart from the releases page.
Alternatively, clone the repo if you wish to use the development snapshot:
$ git clone https://github.com/kubernetes/charts.git
Installing the Chart
To install the chart with the release name my-release:
$ helm install --name my-release wordpress-x.x.x.tgz
Replace the x.x.x placeholder with the chart release version.
The command deploys WordPress on the Kubernetes cluster in the default configuration. The configuration section lists the parameters that can be configured during installation.
Tip
: List all releases using
helm list
Uninstalling the Chart
To uninstall/delete the my-release deployment:
$ helm delete my-release
The command removes all the Kubernetes components associated with the chart and deletes the release.
Configuration
The following tables lists the configurable parameters of the WordPress chart and their default values.
| Parameter | Description | Default |
|---|---|---|
image |
WordPress image | bitnami/wordpress:{VERSION} |
imagePullPolicy |
Image pull policy | Always if image tag is latest, else IfNotPresent |
wordpressUsername |
User of the application | user |
wordpressPassword |
Application password | bitnami |
wordpressEmail |
Admin email | user@example.com |
wordpressFirstName |
First name | FirstName |
wordpressLastName |
Last name | LastName |
wordpressBlogName |
Blog name | User's Blog! |
smtpHost |
SMTP host | nil |
smtpPort |
SMTP port | nil |
smtpUser |
SMTP user | nil |
smtpPassword |
SMTP password | nil |
smtpUsername |
User name for SMTP emails | nil |
smtpProtocol |
SMTP protocol [tls, ssl] |
nil |
mariadb.mariadbRootPassword |
MariaDB admin password | nil |
serviceType |
Kubernetes Service type | LoadBalancer |
persistence.enabled |
Enable persistence using PVC | true |
persistence.apache.storageClass |
PVC Storage Class for Apache volume | generic |
persistence.apache.accessMode |
PVC Access Mode for Apache volume | ReadWriteOnce |
persistence.apache.size |
PVC Storage Request for Apache volume | 1Gi |
persistence.wordpress.storageClass |
PVC Storage Class for WordPress volume | generic |
persistence.wordpress.accessMode |
PVC Access Mode for WordPress volume | ReadWriteOnce |
persistence.wordpress.size |
PVC Storage Request for WordPress volume | 8Gi |
The above parameters map to the env variables defined in bitnami/wordpress. For more information please refer to the bitnami/wordpress image documentation.
Specify each parameter using the --set key=value[,key=value] argument to helm install. For example,
$ helm install --name my-release \
--set wordpressUsername=admin,wordpressPassword=password,mariadb.mariadbRootPassword=secretpassword \
wordpress-x.x.x.tgz
The above command sets the WordPress application username and password to admin and password respectively. Additionally it sets the MariaDB root user password to secretpassword.
Alternatively, a YAML file that specifies the values for the above parameters can be provided while installing the chart. For example,
$ helm install --name my-release -f values.yaml wordpress-x.x.x.tgz
Tip
: You can use the default values.yaml
Persistence
The Bitnami WordPress image stores the WordPress data and configurations at the /bitnami/wordpress and /bitnami/apache paths of the container.
Persistent Volume Claims are used to keep the data across deployments. This is known to work in GCE, AWS, and minikube. See the Configuration section to configure the PVC or to disable persistence.