WordPress and Caddy 2 with Docker

Caddyfile

{
  your@email.com
}

www.site1.com {
  redir https://site1.com{uri}
}

site1.com {
  root * /usr/share/caddy/wordpress-site1
  log
  @canonicalPath {
    file {
      try_files {path}/index.php
    }
    not {
      path */
    }
  }
  @phpFiles {
    path *.php
  }
  route {
    redir @canonicalPath {path}/ 308
    try_files {path} {path}/index.php index.php
    reverse_proxy @phpFiles {
      to wordpress-site1:9000
      transport fastcgi {
        split .php
        root /var/www/html
      }
    }
    respond /uploads/*.php 404
    file_server
  }
}

docker-compose.yml

version: '3.7'

services:
  caddy:
    image: caddy:alpine
    restart: always
    container_name: caddy2
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /etc/timezone:/etc/timezone:ro
      - /etc/localtime:/etc/localtime:ro
      - $PWD/wordpress-site1-volume:/usr/share/caddy/wordpress-site1
      - $PWD/Caddyfile:/etc/caddy/Caddyfile
      - $PWD/caddy_data:/data
      - $PWD/caddy_config:/config
    networks:
      - yournet
  mariadb:
    image: mariadb:latest
    container_name: mariadb
    networks:
      - yournet
    volumes:
      - $PWD/data/mariadb:/var/lib/mysql
      - $PWD/conf/mariadb:/docker-entrypoint-initdb.d
    restart: always
    ports:
      - 3306:3306
    env_file:
      - $PWD/conf/mariadb.env
    healthcheck:
      test: pidof mysqld || exit 1
      interval: 120s
      timeout: 10s
      retries: 3
  wordpress-site1:
    depends_on:
      - mariadb
      - caddy
    image: wordpress:php7.4-fpm-alpine
    container_name: wordpress-site1
    restart: always
    networks:
      - yournet
    env_file:
      - $PWD/conf/wordpress-site1.env
    volumes:
      - $PWD/wordpress-site1-volume:/var/www/html
      - $PWD/conf/php.ini:/usr/local/etc/php/conf.d/custom.ini
    healthcheck:
      test: pidof php-fpm || exit 1
      interval: 10s
      timeout: 10s
      retries: 3
  adminer:
    image: adminer
    container_name: adminer
    restart: always
    depends_on:
      - mariadb
    networks:
      - yoyonet
    ports:
      - 8081:8080
    environment:
      - "MYSQL_ROOT_PASSWORD=mariadb"
      - "TZ=Asia/Taipei"
    healthcheck:
      test: pidof php || exit 1
      interval: 120s
      timeout: 10s
      retries: 3

networks:
  yournet:
    ipam:
      config:
        - subnet: 172.22.0.0/24

mariadb.env

MYSQL_ROOT_PASSWORD=<a-root-password>
TZ=Asia/Taipei

php.ini

memory_limit = 32M
upload_max_filesize = 24M
post_max_size = 32M

wordpress-site1.env

WORDPRESS_DB_HOST=mariadb:3306
WORDPRESS_DB_TYPE=mysql
WORDPRESS_DB_PASSWORD=<a-wordpress-password>
WORDPRESS_DB_USER=wordpress
# 記得資料庫名稱需使用下底線（_）區隔
WORDPRESS_DB_NAME=wordpress_site1
WORDPRESS_FS_METHOD=direct
TZ=Asia/Taipei