On Debian/Ubuntu, the unit is named tgt.service instead of tgtd.service,
so let's make sure we take that into account.
On CentOS, tgtd.service is not available, so let's skip the test if we
can't find the service.
Let's remove the unneeded NotifyAccess=all and start the socket
and service in the test itself instead of via the service unit. This
makes the test unit identical to the other test units which will allow
us to autogenerate it in a later commit.
Having these named differently than the test itself mostly creates
unecessary confusion and makes writing logic against the tests harder
so let's rename the testsuite-xx units and scripts to just use the
test name itself.
Let's make this behave more like all the rest of the meson stuff.
This also is the first step to making it a bit more flexible so we
can define integration tests in different ways as will be seen in
the next commits.
We don't support this for any other tests either so let's drop the
support for running TEST-01-BASIC without installing as well to make
the upcoming commit easier to implement.
Currently, on soft-reboot, /run/credentials/@system is unmounted
because it has DefaultDependencies=yes and as such will have
Conflicts=umount.target and Before=umount.target. Let's make sure
credential mounts survive soft-reboot by implying DefaultDependencies=no
for credential mounts.
A fixed name is too rigid, let's give users the ability to define
custom drop-in names which at the same time also allows defining
multiple dropins per unit.
We use ~ as the separator because:
- ':' is not allowed in credential names
- '=' is used to separate credential from value in mkosi's --credential
argument.
- '-' is commonly used in filenames
- '@' already has meaning as the unit template specifier which might be
confusing when adding dropins for template units
