Replace all references to /usr/sbin/mysqld (and bin and libexec) with
mariadbd, so that the binary server will always be 'mariadbd'.
Also update all places that reference the server binary in other ways,
such as AppArmor profiles and scripts that previously expected to find
a 'mysqld' in process lists.
These do now show up automatically due to init and systemd customizations,
so the handiest fix is to add them manually. This has been the praxis
in downstream MariaDB packaging for a couple years now, and works fine.
- Ensure service is loaded and started after installation,
(fixes service start issues in Debian/Ubuntu upgrades where
otherwise service mysql status stayed stopped)
- Ensure service stopped before removal/purge
(fixes unstopped processes detected by piuparts)
- Ensure systemd daemon is reloaded after removal/purge when service
has been removed
Partially reverts commit a4cc6fb91f.
While all current versions of Linux have systemd, support for traditional
init.d is still needed e.g. on Linux subsystem on Windows, kFreeBSD and
special variants of Debian/Ubuntu that for other reasons don't have
systemd.
Thus, re-introduce the init file that was remove, but this time with
then name 'mariadb'.
Supporting traditional sysv init in paraller with systemd is easy, since
Debian has facilities for it.
Also simplify and update salsa-ci.yml install/upgrade testing works
for all previous MariaDB and MySQL releases without any excess quirks.
Note that in fresh installs the salsa-ci.yml needs to run command
'service mariadb status' to control the service, while on upgrades
it is enough to run 'service mysql status', since the init.d/mysql
file is left behind from previous install, along with some other
config files such as /etc/default/mysql and /etc/mysql/* stuff.
There are still some differences in due to systemd and service triggers,
but these differences make sense and are likely to be synced the other
way later so that downstream Debian official packaging adopts them.
The synced changes include among others:
- 9f49e4b494
- 6440c0d6e7
- 6e5ee72d64
- e62e67ae4b
- df2415a53d
- 643558da74
