The state history database is entirely too big. It takes over an hour
to create a backup of it, which usually causes BURP to time out. The
data it stores isn't particularly interesting anyway. Instead of trying
to back it up and ultimately not getting any backup at all, we'll just
skip it altogether to ensure we have a consistent backup of everything
else that is actually important.
Before the `burp` tool gained the `-Q` option, the only way to disable
the progress counter was through the configuration file. Since we do
not want any output from automatic backups (except of course
catastrophic failures), since it would end up being e-mailed by cron,
the progress counter had to be disabled globally. This meant that
on-demand runs on a terminal could not have a progress counter, which
was pretty disappointing.
Now that `burp` has `-Q`, this is no longer the case. Scheduled backups
can run with `-Q`, but ad-hoc runs can omit it to get a progress
counter.
This commit configures *bw0.pyrocufflink.blue* as a BURP client, so that
the Bitwarden data can be backed up. A pre-backup script is used to
take a consistent snapshot of the SQLite database before copying it to
the BURP server.
The *burp-client* role installs and configures a BURP client. It should
support RHEL/CentOS/Fedora and Gentoo.
To manage the client password and other server-mandated configuration,
the role uses Ansible's delegation feature to generate a configuration
file in the "clientconfdir" on the BURP server.
An hourly cron task is scheduled that runs `burp -a t` every hour. This
allows the server to configure backup timebands and intervals.
Dustin