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148 lines
5.2 KiB
Markdown
148 lines
5.2 KiB
Markdown
# Quickstart: Compose and WordPress
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You can use Docker Compose to easily run WordPress in an isolated environment
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built with Docker containers. This quick-start guide demonstrates how to use
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Compose to set up and run WordPress. Before starting, make sure you have
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[Compose installed](https://docs.docker.com/compose/install/).
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## Define the project
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1. Create an empty project directory.
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You can name the directory something easy for you to remember.
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This directory is the context for your application image. The
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directory should only contain resources to build that image.
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This project directory contains a `docker-compose.yml` file which
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is complete in itself for a good starter wordpress project.
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>**Tip**: You can use either a `.yml` or `.yaml` extension for
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this file. They both work.
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2. Change into your project directory.
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For example, if you named your directory `my_wordpress`:
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```console
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$ cd my_wordpress/
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```
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3. Create a `docker-compose.yml` file that starts your
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`WordPress` blog and a separate `MySQL` instance with volume
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mounts for data persistence:
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```yaml
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services:
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db:
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# We use a mariadb image which supports both amd64 & arm64 architecture
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image: mariadb:10.6.4-focal
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# If you really want to use MySQL, uncomment the following line
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#image: mysql:8.0.27
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command: '--default-authentication-plugin=mysql_native_password'
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volumes:
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- db_data:/var/lib/mysql
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restart: always
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environment:
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- MYSQL_ROOT_PASSWORD=somewordpress
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- MYSQL_DATABASE=wordpress
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- MYSQL_USER=wordpress
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- MYSQL_PASSWORD=wordpress
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expose:
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- 3306
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- 33060
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wordpress:
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image: wordpress:latest
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volumes:
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- wp_data:/var/www/html
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ports:
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- 80:80
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restart: always
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environment:
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- WORDPRESS_DB_HOST=db
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- WORDPRESS_DB_USER=wordpress
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- WORDPRESS_DB_PASSWORD=wordpress
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- WORDPRESS_DB_NAME=wordpress
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volumes:
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db_data:
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wp_data:
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```
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> **Notes**:
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>
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* The docker volumes `db_data` and `wordpress_data` persists updates made by WordPress
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to the database, as well as the installed themes and plugins. [Learn more about docker volumes](https://docs.docker.com/storage/volumes/)
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>
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* WordPress Multisite works only on ports `80` and `443`.
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{: .note-vanilla}
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### Build the project
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Now, run `docker compose up -d` from your project directory.
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This runs [`docker compose up`](https://docs.docker.com/engine/reference/commandline/compose_up/) in detached mode, pulls
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the needed Docker images, and starts the wordpress and database containers, as shown in
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the example below.
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```console
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$ docker compose up -d
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Creating network "my_wordpress_default" with the default driver
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Pulling db (mysql:5.7)...
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5.7: Pulling from library/mysql
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efd26ecc9548: Pull complete
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a3ed95caeb02: Pull complete
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<...>
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Digest: sha256:34a0aca88e85f2efa5edff1cea77cf5d3147ad93545dbec99cfe705b03c520de
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Status: Downloaded newer image for mysql:5.7
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Pulling wordpress (wordpress:latest)...
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latest: Pulling from library/wordpress
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efd26ecc9548: Already exists
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a3ed95caeb02: Pull complete
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589a9d9a7c64: Pull complete
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<...>
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Digest: sha256:ed28506ae44d5def89075fd5c01456610cd6c64006addfe5210b8c675881aff6
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Status: Downloaded newer image for wordpress:latest
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Creating my_wordpress_db_1
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Creating my_wordpress_wordpress_1
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```
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> **Note**: WordPress Multisite works only on ports `80` and/or `443`.
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If you get an error message about binding `0.0.0.0` to port `80` or `443`
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(depending on which one you specified), it is likely that the port you
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configured for WordPress is already in use by another service.
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### Bring up WordPress in a web browser
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At this point, WordPress should be running on port `80` of your Docker Host,
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and you can complete the "famous five-minute installation" as a WordPress
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administrator.
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> **Note**: The WordPress site is not immediately available on port `80`
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because the containers are still being initialized and may take a couple of
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minutes before the first load.
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If you are using Docker Desktop for Mac or Docker Desktop for Windows, you can use
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`http://localhost` as the IP address, and open `http://localhost:80` in a web
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browser.
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### Shutdown and cleanup
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The command [`docker compose down`](https://docs.docker.com/engine/reference/commandline/compose_down/) removes the
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containers and default network, but preserves your WordPress database.
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The command `docker compose down --volumes` removes the containers, default
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network, and the WordPress database.
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## More Compose documentation
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* [Docker Compose overview](https://docs.docker.com/compose/)
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* [Install Docker Compose](https://docs.docker.com/compose/install/)
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* [Getting Started with Docker Compose](https://docs.docker.com/compose/gettingstarted/)
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* [Docker Compose Command line reference](https://docs.docker.com/compose/reference/)
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* [Compose file reference](https://docs.docker.com/compose/compose-file/)
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* [Awesome Compose WordPress sample](../../wordpress-mysql/README.md)
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