Docker Wordpress Setup

init-wordpress.sh

#!/bin/bash

if [ -z "$1" ]; then
  echo "USAGE: init-wordpress APP_NAME"
  echo "  APP_NAME is the base name for the new Wordpress Docker containers"
  exit 1
fi

APP_NAME=$1

MYSQL_CONTAINER=mysql
WORDPRESS_CONTAINER=wordpress

if [ -z "$MYSQL_ROOT_PASSWORD" ]; then
  MYSQL_ROOT_PASSWORD=`< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c45`
fi

echo "Setting up data-only containers..."
docker run --name $APP_NAME-wordpress-mysql-data --entrypoint="echo" $MYSQL_CONTAINER "Data-only container for $APP_NAME"
docker run --name $APP_NAME-wordpress-data --entrypoint="echo" $WORDPRESS_CONTAINER "Data-only container for $APP_NAME"

echo "Starting MySQL container..."
docker run \
  --name $APP_NAME-wordpress-mysql \
  --volumes-from $APP_NAME-wordpress-mysql-data \
  -e MYSQL_ROOT_PASSWORD=$MYSQL_ROOT_PASSWORD \
  -d $MYSQL_CONTAINER \
  mysqld \
    --datadir=/var/lib/mysql \
    --user=mysql \
    --performance-schema=off # to avoid massive memory usage (50MB vs 500MB; silly MySQL)

echo "Starting Wordpress container..."
docker run \
  --volumes-from $APP_NAME-wordpress-data \
  --name $APP_NAME-wordpress \
  --link $APP_NAME-wordpress-mysql:mysql \
  -P -d $WORDPRESS_CONTAINER

wordpress-mysql@.service

[Unit]
Description=Wordpress MySQL (%i)
Author=Watermark Community Church
After=docker.service

[Service]
Restart=always
ExecStart=/usr/bin/docker start -a %i-wordpress-mysql
ExecStop=/usr/bin/docker stop %i-wordpress-mysql

[Install]
WantedBy=multi-user.target

wordpress@.service

[Unit]
Description=Wordpress (%i)
Author=Watermark Community Church
After=docker.service
After=%i-wordpress-mysql.service

[Service]
Restart=always
ExecStart=/usr/bin/docker start -a %i-wordpress
ExecStop=/usr/bin/docker stop %i-wordpress

[Install]
WantedBy=multi-user.target