percona-server-server-5.6 misses apparmor file - fails to install on 16.04

[Vincent Gerris]

sudo apt-get install percona-server-server-5.6 fails with:

Setting up percona-server-server-5.6 (5.6.22-rel71.0-0ubuntu4.1) ...
Job for mysql.service failed because the control process exited with error code. See "systemctl status mysql.service" and "journalctl -xe" for details.
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error processing package percona-server-server-5.6 (--configure):
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 percona-server-server-5.6

This turned out to be caused by at least the apparmor profile not being there.
If a previous install of mysql-server was there, the file was there, but missing the lines to access the percona lib dir.

To fix this I resused that file and added the last two lines:
# Allow data dir access
  /var/lib/mysql/ r,
  /var/lib/mysql/** rwk,
  /var/lib/percona-server/ r,
  /var/lib/percona-server/** rwk,

then this to be able to control it (as root):
rm -r /var/lib/mysql* # Remove any old database (WARNING!)
setup mysql_install_db -u mysql # Install new database
systemctl unmask mysql.service # Enables the service for systemd
service mysql start # start the service.

The fix is probable to add a proper apparmor profile to the package, one has to decide if the 'alternative db' dirs have to be included

[Vincent Gerris (vgerris)]

https://bugs.launchpad.net/ubuntu/+source/percona-xtradb-cluster-5.6/+bug/1623964 is related.

[Vincent Gerris (vgerris)]

N.B. workaround applies to file : /etc/apparmor.d/usr.bin.mysqld

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PS-3579