What is WordPress?

WordPress is one of the most versatile open source content management systems on the market. WordPress is built for high performance and is scalable to many servers, has easy integration via REST, JSON, SOAP and other formats, and features a whopping 15,000 plugins to extend and customize the application for just about any type of website.

https://www.wordpress.org/

TL;DR;

Docker Compose

$ curl -LO https://raw.githubusercontent.com/bitnami/bitnami-docker-wordpress/master/docker-compose.yml
$ docker-compose up

Why use Bitnami Images?

Bitnami closely tracks upstream source changes and promptly publishes new versions of this image using our automated systems.
With Bitnami images the latest bug fixes and features are available as soon as possible.
Bitnami containers, virtual machines and cloud images use the same components and configuration approach - making it easy to switch between formats based on your project needs.
Bitnami images are built on CircleCI and automatically pushed to the Docker Hub.
All our images are based on minideb a minimalist Debian based container image which gives you a small base container image and the familiarity of a leading linux distribution.

Prerequisites

To run this application you need Docker Engine >= 1.10.0. Docker Compose is recommended with a version 1.6.0 or later.

How to use this image

WordPress requires access to a MySQL or MariaDB database to store information. We'll use our very own MariaDB image for the database requirements.

Using Docker Compose

The recommended way to run WordPress is using Docker Compose using the following docker-compose.yml template:

version: '2'

services:
  mariadb:
    image: 'bitnami/mariadb:latest'
    volumes:
      - 'mariadb_data:/bitnami'
    environment:
      - MARIADB_USER=bn_wordpress
      - MARIADB_DATABASE=bitnami_wordpress
      - ALLOW_EMPTY_PASSWORD=yes
  wordpress:
    image: 'bitnami/wordpress:latest'
    ports:
      - '80:80'
      - '443:443'
    volumes:
      - 'wordpress_data:/bitnami'
    depends_on:
      - mariadb
    environment:
      - MARIADB_HOST=mariadb
      - MARIADB_PORT_NUMBER=3306
      - WORDPRESS_DATABASE_USER=bn_wordpress
      - WORDPRESS_DATABASE_NAME=bitnami_wordpress
      - ALLOW_EMPTY_PASSWORD=yes

volumes:
  mariadb_data:
    driver: local
  wordpress_data:
    driver: local

Launch the containers using:

$ docker-compose up -d

Using the Docker Command Line

If you want to run the application manually instead of using docker-compose, these are the basic steps you need to run:

Create a network

$ docker network create wordpress-tier

Create a volume for MariaDB persistence and create a MariaDB container

$ docker volume create --name mariadb_data
$ docker run -d --name mariadb \
  -e ALLOW_EMPTY_PASSWORD=yes \
  -e MARIADB_USER=bn_wordpress \
  -e MARIADB_DATABASE=bitnami_wordpress \
  --net wordpress-tier \
  --volume mariadb_data:/bitnami \
  bitnami/mariadb:latest

Create volumes for WordPress persistence and launch the container

$ docker volume create --name wordpress_data
$ docker run -d --name wordpress -p 80:80 -p 443:443 \
  -e ALLOW_EMPTY_PASSWORD=yes \
  -e WORDPRESS_DATABASE_USER=bn_wordpress \
  -e WORDPRESS_DATABASE_NAME=bitnami_wordpress \
  --net wordpress-tier \
  --volume wordpress_data:/bitnami \
  bitnami/wordpress:latest

Access your application at http://your-ip/

Persisting your application

If you remove the container all your data and configurations will be lost, and the next time you run the image the database will be reinitialized. To avoid this loss of data, you should mount a volume that will persist even after the container is removed.

For persistence you should mount a volume at the /bitnami path. Additionally you should mount a volume for persistence of the MariaDB data.

The above examples define docker volumes namely mariadb_data and wordpress_data. The Wordpress application state will persist as long as these volumes are not removed.

To avoid inadvertent removal of these volumes you can mount host directories as data volumes. Alternatively you can make use of volume plugins to host the volume data.

Mount host directories as data volumes with Docker Compose

The following docker-compose.yml template demonstrates the use of host directories as data volumes.

version: '2'

services:
  mariadb:
    image: 'bitnami/mariadb:latest'
    environment:
      - ALLOW_EMPTY_PASSWORD=yes
      - MARIADB_USER=bn_wordpress
      - MARIADB_DATABASE=bitnami_wordpress
    volumes:
      - /path/to/mariadb-persistence:/bitnami
  wordpress:
    image: bitnami/wordpress:latest
    depends_on:
      - mariadb
    ports:
      - '80:80'
      - '443:443'
    environment:
      - WORDPRESS_DATABASE_USER=bn_wordpress
      - WORDPRESS_DATABASE_NAME=bitnami_wordpress
      - ALLOW_EMPTY_PASSWORD=yes
    volumes:
      - /path/to/wordpress-persistence:/bitnami

Mount host directories as data volumes using the Docker command line

Create a network (if it does not exist)

$ docker network create wordpress-tier

Create a MariaDB container with host volume

$ docker run -d --name mariadb \
  -e ALLOW_EMPTY_PASSWORD=yes \
  -e MARIADB_USER=bn_wordpress \
  -e MARIADB_DATABASE=bitnami_wordpress \
  --net wordpress-tier \
  --volume /path/to/mariadb-persistence:/bitnami \
  bitnami/mariadb:latest

Create the WordPress the container with host volumes

$ docker run -d --name wordpress -p 80:80 -p 443:443 \
  -e ALLOW_EMPTY_PASSWORD=yes \
  -e WORDPRESS_DATABASE_USER=bn_wordpress \
  -e WORDPRESS_DATABASE_NAME=bitnami_wordpress \
  --net wordpress-tier \
  --volume /path/to/wordpress-persistence:/bitnami \
  bitnami/wordpress:latest

Upgrading WordPress

Bitnami provides up-to-date versions of MariaDB and WordPress, including security patches, soon after they are made upstream. We recommend that you follow these steps to upgrade your container. We will cover here the upgrade of the WordPress container. For the MariaDB upgrade see https://github.com/bitnami/bitnami-docker-mariadb/blob/master/README.md#upgrade-this-image

The bitnami/wordpress:latest tag always points to the most recent release. To get the most recent release you can simple repull the latest tag from the Docker Hub with docker pull bitnami/wordpress:latest. However it is recommended to use tagged versions.

Get the updated images:

$ docker pull bitnami/wordpress:latest

Stop your container

For docker-compose: $ docker-compose stop wordpress
For manual execution: $ docker stop wordpress

Take a snapshot of the application state

$ rsync -a /path/to/wordpress-persistence /path/to/wordpress-persistence.bkp.$(date +%Y%m%d-%H.%M.%S)

Additionally, snapshot the MariaDB data

You can use these snapshots to restore the application state should the upgrade fail.

Remove the stopped container

For docker-compose: $ docker-compose rm wordpress
For manual execution: $ docker rm wordpress

Run the new image

For docker-compose: $ docker-compose start wordpress
For manual execution (mount the directories if needed): docker run --name wordpress bitnami/wordpress:latest

Configuration

Environment variables

The WordPress instance can be customized by specifying environment variables on the first run. The following environment values are provided to custom WordPress:

User and Site configuration

WORDPRESS_USERNAME: WordPress application username. Default: user
WORDPRESS_PASSWORD: WordPress application password. Default: bitnami
WORDPRESS_EMAIL: WordPress application email. Default: user@example.com
WORDPRESS_FIRST_NAME: WordPress user first name. Default: FirstName
WORDPRESS_LAST_NAME: WordPress user last name. Default: LastName
WORDPRESS_BLOG_NAME: WordPress blog name. Default: User's blog

Use an existing database

MARIADB_HOST: Hostname for MariaDB server. Default: mariadb
MARIADB_PORT_NUMBER: Port used by MariaDB server. Default: 3306
WORDPRESS_DATABASE_NAME: Database name that WordPress will use to connect with the database. Default: bitnami_wordpress
WORDPRESS_DATABASE_USER: Database user that WordPress will use to connect with the database. Default: bn_wordpress
WORDPRESS_DATABASE_PASSWORD: Database password that WordPress will use to connect with the database. No defaults.
ALLOW_EMPTY_PASSWORD: It can be used to allow blank passwords. Default: no

Create a database for WordPress using mysql-client

MARIADB_HOST: Hostname for MariaDB server. Default: mariadb
MARIADB_PORT_NUMBER: Port used by MariaDB server. Default: 3306
MARIADB_ROOT_USER: Database admin user. Default: root
MARIADB_ROOT_PASSWORD: Database password for the MARIADB_ROOT_USER user. No defaults.
MYSQL_CLIENT_CREATE_DATABASE_NAME: New database to be created by the mysql client module. No defaults.
MYSQL_CLIENT_CREATE_DATABASE_USER: New database user to be created by the mysql client module. No defaults.
MYSQL_CLIENT_CREATE_DATABASE_PASSWORD: Database password for the MYSQL_CLIENT_CREATE_DATABASE_USER user. No defaults.
ALLOW_EMPTY_PASSWORD: It can be used to allow blank passwords. Default: no

Specifying Environment variables using Docker Compose

version: '2'

services:
  mariadb:
    image: 'bitnami/mariadb:latest'
    environment:
      - MARIADB_USER=bn_wordpress
      - MARIADB_DATABASE=bitnami_wordpress
      - ALLOW_EMPTY_PASSWORD=yes
    volumes:
      - mariadb_data:/bitnami
  wordpress:
    image: bitnami/wordpress:latest
    depends_on:
      - mariadb
    ports:
      - '80:80'
      - '443:443'
    environment:
      - MARIADB_HOST=mariadb
      - MARIADB_PORT_NUMBER=3306
      - WORDPRESS_DATABASE_USER=bn_wordpress
      - WORDPRESS_DATABASE_NAME=bitnami_wordpress
      - ALLOW_EMPTY_PASSWORD=yes
    volumes:
      - wordpress_data:/bitnami

volumes:
  mariadb_data:
    driver: local
  wordpress_data:
    driver: local

Specifying Environment variables on the Docker command line

$ docker run -d --name wordpress -p 80:80 -p 443:443 \
  --net wordpress-tier \
  -e ALLOW_EMPTY_PASSWORD=yes \
  -e WORDPRESS_DATABASE_USER=bn_wordpress \
  -e WORDPRESS_DATABASE_NAME=bitnami_wordpress \
  -e WORDPRESS_PASSWORD=my_password \
  --volume wordpress_data:/bitnami \
  bitnami/wordpress:latest

SMTP Configuration

To configure WordPress to send email using SMTP you can set the following environment variables:

SMTP_HOST: Host for outgoing SMTP email. No defaults.
SMTP_PORT: Port for outgoing SMTP email. No defaults.
SMTP_USER: User of SMTP used for authentication (likely email). No defaults.
SMTP_PASSWORD: Password for SMTP. No defaults.
SMTP_PROTOCOL: Secure connection protocol to use for SMTP [tls, ssl, none]. No defaults.

This would be an example of SMTP configuration using a GMail account:

docker-compose (application part):

  wordpress:
    image: bitnami/wordpress:latest
    ports:
      - 80:80
      - 443:443
    environment:
      - MARIADB_HOST=mariadb
      - MARIADB_PORT_NUMBER=3306
      - WORDPRESS_DATABASE_USER=bn_wordpress
      - WORDPRESS_DATABASE_NAME=bitnami_wordpress
      - SMTP_HOST=smtp.gmail.com
      - SMTP_PORT=587
      - SMTP_USER=your_email@gmail.com
      - SMTP_PASSWORD=your_password
      - SMTP_PROTOCOL=tls
    volumes:
      - wordpress_data:/bitnami/wordpress

For manual execution:

$ docker run -d --name wordpress -p 80:80 -p 443:443 \
  --net wordpress-tier \
  --env SMTP_HOST=smtp.gmail.com --env SMTP_PORT=587 \
  --env SMTP_USER=your_email@gmail.com --env SMTP_PASSWORD=your_password \
  --env ALLOW_EMPTY_PASSWORD=yes --env WORDPRESS_DATABASE_USER=bn_wordpress \
  --env WORDPRESS_DATABASE_NAME=bitnami_wordpress \
  --volume wordpress_data:/bitnami/wordpress \
  bitnami/wordpress:latest

Connect WordPress docker container to an existing database

The Bitnami WordPress container supports connecting the WordPress application to an external database. In order to configure it, you should set the following environment variables:

MARIADB_HOST: Hostname for MariaDB server. Default: mariadb
MARIADB_PORT_NUMBER: Port used by MariaDB server. Default: 3306
WORDPRESS_DATABASE_NAME: Database name that WordPress will use to connect with the database. Default: bitnami_wordpress
WORDPRESS_DATABASE_USER: Database user that WordPress will use to connect with the database. Default: bn_wordpress
WORDPRESS_DATABASE_PASSWORD: Database password that WordPress will use to connect with the database. No defaults.

This would be an example of using an external database for WordPress.

docker-compose:

  wordpress:
    image: bitnami/wordpress:latest
    ports:
      - 80:80
      - 443:443
    environment:
      - MARIADB_HOST=mariadb_host
      - MARIADB_PORT_NUMBER=3306
      - WORDPRESS_DATABASE_NAME=wordpress_db
      - WORDPRESS_DATABASE_USER=wordpress_user
      - WORDPRESS_DATABASE_PASSWORD=wordpress_password
    volumes:
      - wordpress_data:/bitnami

For manual execution:

$ docker run -d --name wordpress -p 80:80 -p 443:443 \
  --net wordpress-tier \
  --env MARIADB_HOST=mariadb_host \
  --env MARIADB_PORT_NUMBER=3306 \
  --env WORDPRESS_DATABASE_NAME=wordpress_db \
  --env WORDPRESS_DATABASE_USER=wordpress_user \
  --env WORDPRESS_DATABASE_PASSWORD=wordpress_password \
  --volume wordpress_data:/bitnami \
  bitnami/wordpress:latest

Contributing

We'd love for you to contribute to this container. You can request new features by creating an issue, or submit a pull request with your contribution.

Issues

If you encountered a problem running this container, you can file an issue. For us to provide better support, be sure to include the following information in your issue:

Host OS and version
Docker version ($ docker version)
Output of $ docker info
Version of this container ($ echo $BITNAMI_IMAGE_VERSION inside the container)
The command you used to run the container, and any relevant output you saw (masking any sensitive information)

Community

Most real time communication happens in the #containers channel at bitnami-oss.slack.com; you can sign up at slack.oss.bitnami.com.

Discussions are archived at bitnami-oss.slackarchive.io.

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

fbrbovic/bitnami-docker-wordpress