Installing the dependencies

Run make to install the necessary 3rd party roles, namely:

geerlingguy.docker
geerlingguy.nginx
oh-my-zsh roles

The last role just make the server environments more akin to how I prefer them to be. It's easy enough to block this out, just edit roles/yttrx/meta/main.yml and remove ansible-role-oh-my-zsh.

Unsupported

This currently doesn't manage anything related to your postgres work. I'll get to that later, but right now the postgres portion is the oldest parts of my manually installed mastodon instance, and I am not ready to tear that down.

Configuring your .env.production

Mastodon is configured with the .env.production file. This is populated with the hash configured in roles/mastodon/vars/main.yml. This file contains sensitive information such as passwords etc., so it's better if we don't accidentally leak that to github, as such, that file i s in the .gitignore file. I'll talk about how to configure it below.

cat roles/mastodon/vars/main.yml
---
ENV_PRODUCTION:
  LOCAL_DOMAIN: changeme
  SINGLE_USER_MODE: 'false'
  SECRET_KEY_BASE: changeme
  OTP_SECRET: changeme
  VAPID_PRIVATE_KEY: changeme
  VAPID_PUBLIC_KEY: changeme
  DB_HOST: pgbouncer
  DB_PORT: 5432
  DB_NAME: mastodon_production
  DB_USER: mastodon
  DB_PASS: changeme
  REDIS_HOST: changeme
  REDIS_PORT: 6379
  REDIS_PASSWORD:
  SMTP_SERVER: changeme
  SMTP_PORT: 25
  SMTP_AUTH_METHOD: none
  SMTP_OPENSSL_VERIFY_MODE: none
  SMTP_ENABLE_STARTTLS: auto
  SMTP_FROM_ADDRESS: changeme
  S3_ENABLED: 'true'
  S3_PROTOCOL: https
  S3_BUCKET: changeme
  S3_REGION: changeme
  S3_HOSTNAME: changeme
  S3_ENDPOINT: changeme
  AWS_ACCESS_KEY_ID: changeme
  AWS_SECRET_ACCESS_KEY: changeme
  S3_ALIAS_HOST: changeme
  STATSD_ADDR: statsd:9125

In addition, you'll need to update the group_vars/all file and setup the location of your postgres server. This is used by pgbouncer.

Configuring group_vars

Populate the group_vars/all file with something similar to:

MASTODON_VERSION: v4.0.2
REAL_DB_HOST: hostname-of-your-database
REAL_DB_PORT: port-of-your-database
DB_POOL: 25

Configure your frontends to point to the right webapp

For each of your frontend hosts, create a file called host_vars/$HOSTNAME (where $HOSTNAME is the name of each of your frontend machines) and place into it:

webapp_hosts:
  - HOST_OF_WEBAPP
  - ANOTHER_HOST_OF_WEBAPP

for however many webapp (web & streaming) hosts you have.

Configuring redis

If you want to install redis on a particular host, create an entry for it under host_vars/$HOSTNAME and set the variable:

RUN_REDIS: True

Configuring sidekiq workers

It's easy to spin up additional worker capacity. Edit the hosts file, and add your new hostnames under the [sidekiq] line, then from the terminal, run ansible-playbook sidekiq.yml. This will configure the host with all of the basic yttrx role stuff, including shell and nvim niceties, it will install docker, checkout the mastodon github repo, and configure the docker-compose.yml & docker-compose.override.yml files.

The docker-compose.yml file is managed by the mastodon role, and will simply install the pgbouncer and statsd containers. These are basic container required by all roles. Role specific configurations will go into the docker-compose.override.yml file.

Configuring how many sidekiq workers and which queues they'll process

Edit the host_vars/$hostname (where $hostname is a name of a host that is going to run sidekiq) file and configure the sidekiq var. The expected format is:

sidekiq:
  - name: ingress-and-stuff
  - q: [ 'ingress', 'default' ]

This will create a service called sidekiq-ingress-and-stuff with the ingress and default queues. To have the default queues, leave the q array empty.

Configuring frontend

You must provide two sets of certificates and keys into the directory roles/frontend/templates of the names:

domain.fullchain.pem
domain.privkey.pem
cdn.fullchain.pem
cdn.privkey.pem

These files can be built from any number of ways, for example in my development environment I have the following:

#!/bin/bash

sudo certbot certonly -d masto.yttrx.com
sudo certbot certonly -d files.yttrx.com
cd $HOME/masto-ansible/roles/frontend/templates
sudo cp /etc/letsencrypt/live/masto.yttrx.com/fullchain.pem domain.fullchain.pem
sudo cp /etc/letsencrypt/live/masto.yttrx.com/privkey.pem domain.privkey.pem
sudo cp /etc/letsencrypt/live/files.yttrx.com/fullchain.pem cdn.fullchain.pem
sudo cp /etc/letsencrypt/live/files.yttrx.com/fullchain.pem cdn.fullchain.pem
sudo cp /etc/letsencrypt/live/files.yttrx.com/privkey.pem cdn.privkey.pem
chmod ga+r *.pem

waffle2k / masto-ansible