WordPress

This is an example configuration on how to use WordPress with Caddy.

Prerequisites

WordPress has the following requirements:

• PHP version 5.6 or greater
• MySQL version 5.5 or greater

On Ubuntu Linux, we can install them using the following commands:

sudo apt-get update
sudo apt-get install mysql-server php5-mysql php5-fpm

During the installation, MySQL will ask you to set a root password.

To finish the installation, we need to activate MySQL and secure the installation:

sudo mysql_install_db
sudo /usr/bin/mysql_secure_installation

Create WordPress Database

With all the prerequisites in place, we can go ahead and create a new MySQL database and user for WordPress.

First, log into the MySQL Shell:

mysql -u root -p

Now, create the database and user:

CREATE DATABASE wordpress;
CREATE USER wordpressuser@localhost;
SET PASSWORD FOR wordpressuser@localhost= PASSWORD("password");
GRANT ALL PRIVILEGES ON wordpress.* TO wordpressuser@localhost IDENTIFIED BY 'password';
FLUSH PRIVILEGES;
exit

A couple of things are going on here:

1. Create the actual wordpress database.
2. Create the user wordpressuser.
3. Set a password for this user.
4. Grant all privileges of the wordpress database to this user.
5. Reload the new user settings.

Feel free to name you database or user differently.

Download & install WordPress

We can get the latest version of Wordpress from their official website:

curl -SL http://wordpress.org/latest.tar.gz | tar --strip 1 -xzf -

Use the Caddyfile in this example and make sure that fastcgi is listening on port 9000

Now, we can finally run caddy. If everything went right, you'll be greeted by WordPress once you visit http://localhost:8080. From here on, WordPress will guide you through the rest of the setup.

Troubleshooting

The most common error you might encounter is 502 Bad Gateway. In this case, proceed as following:

• Check /var/log/php5-fpm.log for any errors.
• Add errors visible to your Caddyfile
• Often times, php-fpm doesn't work because of wrong permissions. Check the error logs and change the user in /etc/php5/fpm/pool.d/www.conf
• Switching to a Unix socket might help. Change the listen directive in /etc/php5/fpm/pool.d/www.conf to listen = unix:/var/run/php5-fpm.sock and adjust your Caddyfile accordingly.
• If using a unix socket, make sure Caddy has access to the socket file.

Otherwise, search for guides on how to set up fastcgi for Nginx. The configuration for fastcgi is identical for Nginx and Caddy, but Nginx has a lot more tutorials online.