WordPress Docker setup for NGINX

.gitignore

/secrets
/persist

docker-compose.yml

version: "2"
services:
  mariadb:
    image: docker.io/bitnami/mariadb:10.6
    volumes:
      - /persist/db:/bitnami/mariadb
    environment:
      # ALLOW_EMPTY_PASSWORD is recommended only for development.
      - ALLOW_EMPTY_PASSWORD=yes
      - MARIADB_USER=bn_wordpress
      - MARIADB_DATABASE=bitnami_wordpress
  wordpress:
    image: docker.io/bitnami/wordpress-nginx:6
    ports:
      - "80:8080"
      - "443:8443"
    volumes:
      - /persist/wordpress:/bitnami/wordpress
    depends_on:
      - mariadb
    environment:
      # ALLOW_EMPTY_PASSWORD is recommended only for development.
      - ALLOW_EMPTY_PASSWORD=yes
      - WORDPRESS_DATABASE_HOST=mariadb
      - WORDPRESS_DATABASE_PORT_NUMBER=3306
      - WORDPRESS_DATABASE_USER=bn_wordpress
      - WORDPRESS_DATABASE_NAME=bitnami_wordpress

salts.sh

#!/bin/bash
# Make Docker secrets from WordPress salts API.
salts=$(curl https://api.wordpress.org/secret-key/1.1/salt/)
while IFS= read -r line; do
    key=${line:8:18}
    key=${key/"',"/}
    key=$(echo ${key/ */} | tr '[:upper:]' '[:lower:]')
    value=${line:28:-3}
    echo "$value" > secrets/$key
done <<< "$salts"