An Easy to Scale Vanilla WordPress
Getting WordPress to scale in docker swarm mode is a fairly complex feat.
This repository serves as a template to get you started. Fork it, modify it and then deploy it.
Features
- Updating or adding plugins to a deployment is easy and straightforward
- Galera cluster for the database
- Auto configuration of memcached
- Memcached and Batcache
- Passwords stored in secrets
- Production ready
- Traefik load balancer
Adding plugins and themes
Simply update the list in deploy_phase_4.yml or docker-compose.yml and redeploy
Credits
This is based on lots of information around the web:
- https://github.com/christianc1/wordpress-memcached
- https://github.com/colinmollenhour/mariadb-galera-swarm
- https://raw.githubusercontent.com/docker-library/wordpress/master/php7.1/apache/docker-entrypoint.sh
- https://github.com/php-memcached-dev/php-memcached/tree/master
- https://github.com/igbinary/igbinary
Deploying
This is only meant to be deployed on Docker 1.13+ swarm mode.
Docker Swarm
Deploying with Docker Swarm for the first time:
From the root of the repo, run swarm/turn-up.sh, the output should look similar to:
Creating secret blog_xtrabackup_password
Creating secret blog_SECURE_AUTH_SALT
Creating secret blog_NONCE_SALT
Creating secret blog_AUTH_KEY
Creating secret blog_LOGGED_IN_SALT
Creating secret blog_LOGGED_IN_KEY
Creating secret blog_mysql_root_password
Creating secret blog_NONCE_KEY
Creating secret blog_AUTH_SALT
Creating secret blog_mysql_password
Creating secret blog_SECURE_AUTH_KEY
Creating network blog_default
Creating service blog_seed
Waiting for blog_seed
1 of 1 up
Creating service blog_node
Waiting for blog_node
1 of 2 up
2 of 2 up
blog_node scaled to 3
Waiting for blog_node
3 of 3 up
blog_seed scaled to 0
Waiting for blog_seed
Creating service blog_memcached
Waiting for blog_memcached
2 of 2 up
Creating service blog_phpsysinfo
Waiting for blog_phpsysinfo
1 of 1 up
Creating service blog_master
Waiting for blog_master
1 of 1 up
Creating service blog_wordpress
Waiting for blog_wordpress
2 of 2 up
Creating service blog_traefik
Waiting for blog_traefik
1 of 1 up
blog_traefik
blog_traefikIf you'd like to enable developer mode (single node swarm only) -- run swarm/dev.sh from the root of the repo.