Add sentry db data-container
Add initial sentry container
Set up postgres runit service
Make data-init script available in root
Postgres will be running on init, stop it first
Add info message
Install python environment
Don't install postgis
Install postgres development files
Install python development files
Install sentry
Install memcached
Don't increase memcached item max size
Add sentry configuration
Set up config files
Set up sentry DB
Move entire sentry conf to private-data

Not because it all needs to be private, but because importing
local_settings turned out to be a hassle.
Trust all postgres connections as it runs in a closed env
Rename pubkey user
Make service runnable