triton-wordpress

What is this?

Triton is a very nice container platform run by Joyent. Lots of people want to run wordpress. I've made an image to make running wordpress easier.

Shared Image

I maintain a built version of this image on the Joyent Public Cloud. I can't mark it as public, but I can add you as a user of the image. If you would like to be added, please send [email protected] an email with your JPC account uuid.

You can get your account uuid from the triton command line tools with triton account get -j | json id . You can also get it from your invoices which can be found at https://my.joyent.com/main/#!/account .

I want to build my own image

Prerequsites

The below instructions assume you have the triton command line tooling in place, and have that working in addition to the packer tool from packer.io

Build the image

packer build packer.json

Using the Image

Make a wordpress instance

triton instance create -n wordpress triton-wordpress g4-highcpu-512M

Package Selection

So, how small of a machine can you run this image on. The memory footprint of the image is about 500M. I can get the image to start on a 256M instance, but it is very, very slow, because half of the memory is swapped out to disk.
Perhaps you don't mind the performance being measured in seconds. I do. Use images with at least 512M of memory. You'll probably want that for the disk space for your media anyway if you are on JPC.

Make a domain name point at your instance

triton instance get wordpress | json primaryIp gives you the IP address of the instance once the instance is up and running

Fix DNS however is necessary to point your domain name at that IP.

Install wordpress

Go to http://example.com and do the wordpress install.

SSL

The image builds a unique and hilariously invalid self signed cert and puts it in place on the haproxy front end. Wordpress can't use this and it can't be configured to use it until the inital configuration is done.

Run the following commands to use the utility script to configure tls in wordpress.

triton ssh node@wordpress
./wp-add-tls-config.sh 

Getting a real cert

Hilariously invalid cert is annoyingly useless. Get a real one with.

triton ssh wordpress
export domain=example.com
acme-get-cert
svcadm restart haproxy

Useful Bits

/opt/local/sbin/manta-backup will backup your wordpress instance to manta, assuming you have a manta environment variables setup.

/home/node/AutoUpdateWordpress.sh is setup to run daily to upgrade your wordpress install via crontab on the node user. Strongly suggested.