Docker WordPress

The provided Docker image allows you to deploy your WordPress website in production with a powerful configuration, an integrated SMTP relay, and support for PHP Redis.

Key features:

• All images are based on inrage/docker-php
• Docker Hub
• Includes an SMTP server for outgoing emails
• Supports PHP Redis
• Advanced configuration for optimal performance
• Easy deployment and scalability with Docker

Supported tags:

• latest:
  • 8.3 (Dockerfile), 8.3-redis (Dockerfile)
  • 8.2 (Dockerfile), 8.2-redis (Dockerfile)
  • 8.1 (Dockerfile), 8.1-redis (Dockerfile)
  • 8.0 (Dockerfile), 8.0-redis (Dockerfile)
  • 7.4 (Dockerfile), 7.4-redis (Dockerfile)
• legacy:
  • 7.2 (Dockerfile)
  • 7.0 (Dockerfile)
  • 5.6 (Dockerfile)

Installation

To install, you need to either mount a directory into /var/www/html or customize the destination directory according to your needs. Here's how to proceed:

Dockerfile

FROM inrage/docker-wordpress:8.3

COPY --chown=inr . .

Docker Swarm Configuration

We are using a Docker Swarm configuration with Traefik as a reverse proxy. Here's an example of a docker-compose.yml file:

version: "3.8"

services:
  redis:
    hostname: mywebsite.redis
    image: redis:7.2.0
    healthcheck:
      test: ["CMD-SHELL", "redis-cli --raw incr ping"]
    networks:
      - internal-network
    command: redis-server --maxmemory 1024mb --maxmemory-policy allkeys-lru --appendonly yes
    environment:
      TZ: "Europe/Paris"
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - redis_data:/data
  web:
    image: inrage/mycustomimage
    networks:
      database:
      traefik-public:
      internal-network:
    environment:
      WORDPRESS_DB_HOST: db-master.db
      WORDPRESS_DB_USER: mywebsite
      WORDPRESS_DB_PASSWORD: "mywebsitepassword"
      WORDPRESS_DB_NAME: mywebsite
      WORDPRESS_TABLE_PREFIX: gr_
      WORDPRESS_CONFIG_EXTRA: |
        define( 'DISALLOW_FILE_MODS', true );	
        define( 'WP_MEMORY_LIMIT', '512M' );
        define( 'WP_REDIS_HOST', 'mywebsite.redis');

      TZ: "Europe/Paris"
    volumes:
      - /host/website/mywebsite/uploads:/var/www/html/wp-content/uploads

    deploy:
      replicas: 1
      labels:
        - traefik.enable=true
        - traefik.docker.network=traefik-public
        - traefik.constraint-label=traefik-public
        - traefik.http.routers.mywebsite-http.rule=Host(`www.inrage.fr`, `inrage.fr`)
        - traefik.http.routers.mywebsite-http.entrypoints=http
        - traefik.http.routers.mywebsite-http.middlewares=https-redirect
        - traefik.http.routers.mywebsite-https.rule=Host(`www.inrage.fr`, `inrage.fr`)
        - traefik.http.routers.mywebsite-https.entrypoints=https
        - traefik.http.routers.mywebsite-https.tls=true
        - traefik.http.routers.mywebsite-https.tls.certresolver=le
        - traefik.http.services.mywebsite.loadbalancer.server.port=80

volumes:
  redis_data:

networks:
  internal-network:
  database:
    external: true
  traefik-public:
    external: true

Environment Variable

WordPress

Variable	Description	Default
WORDPRESS_NO_CREATE_CONFIG	Do not create a config file	false
WORDPRESS_DB_HOST	Database host	mysql
WORDPRESS_DB_USER	Database user	example username
WORDPRESS_DB_PASSWORD	Database password	example password
WORDPRESS_DB_NAME	Database name	wordpress
WORDPRESS_TABLE_PREFIX	Database table prefix	wp_
WORDPRESS_DEBUG	Enable debug mode	false
WORDPRESS_CONFIG_EXTRA	Additional configuration	empty
WORDPRESS_DB_CHARSET	Database charset	utf8
WORDPRESS_DB_COLLATE	Database collate	empty
WORDPRESS_AUTH_KEY	Authentication key	empty
WORDPRESS_SECURE_AUTH_KEY	Secure authentication key	empty
WORDPRESS_LOGGED_IN_KEY	Logged in key	empty
WORDPRESS_NONCE_KEY	Nonce key	empty
WORDPRESS_AUTH_SALT	Authentication
WORDPRESS_SECURE_AUTH_SALT	Secure authentication salt	empty
WORDPRESS_LOGGED_IN_SALT	Logged in salt	empty
WORDPRESS_NONCE_SALT	Nonce salt	empty

For WORDPRESS_NO_CREATE_CONFIG: Do not create a new configuration file (default: false)

By default, the image will use a new configuration file which is generated at runtime and after you can use WordPress environnement.

If you want to use your own configuration file, set this variable to true.

For WORDPRESS_CONFIG_EXTRA, you can use the following variables:

WORDPRESS_CONFIG_EXTRA: |
    define( 'DISALLOW_FILE_MODS', true );
    define( 'WP_MEMORY_LIMIT', '511M' );
    define( 'WP_REDIS_HOST', 'mysite.redis');

From inrage/docker-php image

Refer to the inrage/docker-php documentation for more information.

Running User

• INRAGE_USER_ID: UID of the user to run the application as (default: 1000)
• INRAGE_GROUP_ID: GID of the user to run the application as (default: 1000)

Tools

• wp: WordPress CLI
• sr: allow you to replace in the database (wp search-replace $1 $2 --precise --all-tables --skip-columns=guid)

Daily Usage

• WordPress - Roots Sage 9
• WordPress - Roots Sage 10