[WordPress](https://wordpress.org/) is one of the most versatile open source content management systems on the market. A publishing platform for building blogs and websites.
## TL;DR;
```console
$ helm install stable/wordpress
```
## Introduction
This chart bootstraps a [WordPress](https://github.com/bitnami/bitnami-docker-wordpress) deployment on a [Kubernetes](http://kubernetes.io) cluster using the [Helm](https://helm.sh) package manager.
It also packages the [Bitnami MariaDB chart](https://github.com/kubernetes/charts/tree/master/stable/mariadb) which is required for bootstrapping a MariaDB deployment for the database requirements of the WordPress application.
## Prerequisites
- Kubernetes 1.4+ with Beta APIs enabled
- PV provisioner support in the underlying infrastructure
## Installing the Chart
To install the chart with the release name `my-release`:
```console
$ helm install --name my-release stable/wordpress
```
The command deploys WordPress on the Kubernetes cluster in the default configuration. The [configuration](#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:
```console
$ helm delete my-release
```
The command removes all the Kubernetes components associated with the chart and deletes the release.
## Configuration
The following table lists the configurable parameters of the WordPress chart and their default values.
| `nodeSelector` | Node labels for pod assignment | `{}` |
| `tolerations` | List of node taints to tolerate | `[]` |
| `affinity` | Map of node/pod affinities | `{}` |
The above parameters map to the env variables defined in [bitnami/wordpress](http://github.com/bitnami/bitnami-docker-wordpress). For more information please refer to the [bitnami/wordpress](http://github.com/bitnami/bitnami-docker-wordpress) image documentation.
Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example,
The above command sets the WordPress administrator account 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,
> **Tip**: You can use the default [values.yaml](values.yaml)
## Production and horizontal scaling
The following repo contains the recommended production settings for wordpress capture in an alternative [values file](values-production.yaml). Please read carefully the comments in the values-production.yaml file to set up your environment appropriately.
To horizontally scale this chart, first download the [values-production.yaml](values-production.yaml) file to your local folder, then:
Note that [values-production.yaml](values-production.yaml) includes a replicaCount of 3, so there will be 3 WordPress pods. As a result, to use the /admin portal and to ensure you can scale wordpress you need to provide a ReadWriteMany PVC, if you don't have a provisioner for this type of storage, we recommend that you install the nfs provisioner and map it to a RWO volume.
The [Bitnami WordPress](https://github.com/bitnami/bitnami-docker-wordpress) image stores the WordPress data and configurations at the `/bitnami` path 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](#configuration) section to configure the PVC or to disable persistence.
## Using an external database
Sometimes you may want to have Wordpress connect to an external database rather than installing one inside your cluster, e.g. to use a managed database service, or use run a single database server for all your applications. To do this, the chart allows you to specify credentials for an external database under the [`externalDatabase` parameter](#configuration). You should also disable the MariaDB installation with the `mariadb.enabled` option. For example:
For annotations, please see [this document](https://github.com/kubernetes/ingress-nginx/blob/master/docs/user-guide/nginx-configuration/annotations.md).
