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Using s-j-remote fixes the following issue: when coalescing files from multiple
inputs, simply copying all files with into the the same directory might
potentially mess things up, because a newer system.journal might overwrite an
older journal. This happens because we run multiple tests from the same image,
and need to clean out the directory after each run.
By using systemd-journal-remote, we nicely coalesce all files. This has the
advantage that if there aren't too many logs, we end up with just one journal
file.
ARTIFACT_DIRECTORY is for ubuntuautopackagetests, where the journal files are
copied to a separate directory to preserve after tests have been run. This
functionality can now be recreated by setting
ARTIFACT_DIRECTORY=$AUTOPKGTEST_ARTIFACTS.
It is more trouble than it is worth. The setup is of a loopback device
is very quick, so it's better to always create it when needed and
immediately drop afterwards.
This causes the unprivileged-nspawn-root directory to be removed
after running one test. The advantage is that we reduce the maximum
disk-space use quite a bit (47*400 MB → about 18GB).
has-overflow was a temporary hack that was removed in
844da987ef (Oct. 2016). All the makefiles
can be the same, and all the targets can be handled identically.
Before, we'd copy the test tree into nspawn-root, and run the tests from there.
This is OK, and doesn't actually take much extra time. But it uses quite a lot
of extra disk space. So let's make things a bit more efficient by running
directly from the image file.
We still run the unprivileged nspawn tests from a copy. Once the kernel
implements fs shift, we can do away with that too.
Before, we'd create a separate image for each test, in
/var/tmp/systemd-test.XXXXX/rootdisk.img. Most of the images
where very similar, except that each one had some unit files installed
specifically for the test. The installation of those custom unit files
was removed in previous commits (all the unit files are always installed).
The new approach is to only create as few distinct images as possible.
We have:
default.img: the "normal" image suitable for almost all the tests
basic.img: the same as default image but doesn't mask any services
cryptsetup.img: p2 is used for encrypted /var
badid.img: /etc/machine-id is overwritten with stuff
selinux.img: with selinux added for fun and fun
and a few others:
ls -l build/test/*img
lrwxrwxrwx 1 root root 38 Mar 21 21:23 build/test/badid.img -> /var/tmp/systemd-test.PJFFeo/badid.img
lrwxrwxrwx 1 root root 38 Mar 21 21:17 build/test/basic.img -> /var/tmp/systemd-test.na0xOI/basic.img
lrwxrwxrwx 1 root root 43 Mar 21 21:18 build/test/cryptsetup.img -> /var/tmp/systemd-test.Tzjv06/cryptsetup.img
lrwxrwxrwx 1 root root 40 Mar 21 21:19 build/test/default.img -> /var/tmp/systemd-test.EscAsS/default.img
lrwxrwxrwx 1 root root 39 Mar 21 21:22 build/test/nspawn.img -> /var/tmp/systemd-test.HSebKo/nspawn.img
lrwxrwxrwx 1 root root 40 Mar 21 21:20 build/test/selinux.img -> /var/tmp/systemd-test.daBjbx/selinux.img
lrwxrwxrwx 1 root root 39 Mar 21 21:21 build/test/test08.img -> /var/tmp/systemd-test.OgnN8Z/test08.img
I considered trying to use the same image everywhere. It would probably be
possible, but it would be very brittle. By using separate images where it is
necessary we keep various orthogonal modifications independent.
The way that images are cached is complicated by the fact that we still
want to keep them in /var/tmp. Thus, an image is created on first use and
linked to from build/test/ so it can be found by other tests.
Tests cannot be run in parallel. I think that is an acceptable limitation.
Creation of the images was probably taking more resources then the actual
tests, so we should be better off anyway.
We had an fstab for the sole purpose of remounting "/" rw. Mounting root ro
is a pointless excercise in obsolete approaches. More importantly, the nspawn
image is now the same as the qemu one.
The two timezone files are now installed in the global setup. I am not too
happy about this, but it still seems better than to create a completely
separate image just for this.
I picked the list of zone files to install by grepping through the code. This
is is a bit brittle, but installing all of them takes a while, and more
importantly, writes a lot of lines to the log.
As in 2a5fcfae02
and in 3e67e5c992
using /usr/bin/env allows bash to be looked up in PATH
rather than being hard-coded.
As with the previous changes the same arguments apply
- distributions have scripts to rewrite shebangs on installation and
they know what locations to rely on.
- For tests/compilation we should rather rely on the user to have setup
there PATH correctly.
In particular this makes testing from git easier on NixOS where do not provide
/bin/bash to improve compose-ability.
Having /etc/securetty in test containers prevents root from logging into
them:
```
Jan 31 10:15:11 systemd-testsuite login[69]: pam_securetty(login:auth): access denied: tty 'pts/0' is not secure !
Jan 31 10:15:11 systemd-testsuite login[69]: FAILED LOGIN 1 FROM pts/0 FOR root, Authentication failure
```
The test exercises that PrivateTmp=yes and ProtectHome={read-only,tmpfs}
directives work as expected when PrivateUsers=yes in a user manager.
Some code is also added to test-functions to help set up test cases that
exercise the user manager.
Meson appears to set the rpath only for some binaries it builds, but not
all. (The rules are not clear to me, but that's besides the point of
this commit).
Let's make sure if our test script operates on a binary that has no
rpath set we fall back preferably to the BUILD_DIR rather than directly
to the host.
This matters if a test uses a libsystemd symbol introduced in a version
newer than the one on the host. In that case "ldd" will not work on the
test binary if rpath is not set. With this fix that behaviour is
corrected, and "ldd" works correctly even in this case.
(Or in other words: before this fix on binaries lacking rpath we'd base
dependency info on the libraries of the host, not the buidl tree, if
they exist in both.)
We currently use the host's kernel and initramfs in our QEMU tests.
If the host is running on an encrypted LUKS partition, then the initramfs
will have a crypttab setup looking for the particular root disk it needs to
encrypt before booting into the system.
However, this disk obviously doesn't exist in our QEMU VM, so it turns out
our tests end up waiting for this device to become available, which will
never actually happen, and boot hangs for 90s until that service times out.
[*** ] A start job is running for /dev/disk/by-uuid/01234567-abcd-1234-abcd-0123456789ab (20s / 1min 30s)
In order to prevent this issue, let's pass "rd.luks=0" to disable LUKS in
the initramfs only as part of our default kernel command-line in our QEMU
tests.
This is enough to disable this behavior and prevent the timeout, while at
the same time doesn't conflict with our tests that actually check for LUKS
behavior in the systemd running under test (such as TEST-02-CRYPTSETUP).
Tested: `sudo make -C TEST-02-CRYPTSETUP/ clean setup run`
Many tests were also masking systemd-machined.service. But machined
should only start when activated, so having it not masked shouldn't be
noticable. TEST-25-IMPORT needs it.
We should never have used an unprefixed environment variable name.
All other systemd-nspawn variables have the "SYSTEMD_NSPAWN_" prefix,
and all other systemd variables have the "SYSTEMD_" prefix.
The new variable name takes precedence, but we fall back to checking the
old one. If only the old one is found, a warning is emitted.
In addition, SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="" is accepted as an override
to avoid looking for the old variable name.
We have a variable with the same name ($UNIFIED_CGROUP_HIERARCHY) in tests,
which governs both systemd-nspawn and qemu behaviour. It is not renamed.
This avoids unnecessary noise in the stderr logs which dd always produces,
such as:
0+0 records in
0+0 records out
0 bytes copied, 0.000155284 s, 0.0 kB/s
Using truncate should not result in any functional change; the image will
still be created as a sparse file of the size specified.
In Ubuntu CI, we test binaries from the installed system, not from
$BUILD_DIR, so use the appropriate binary. Most of the calls to the
binaries are part of checking/processing asan-built binaries, and so
did not apply to Ubuntu CI, except for generating noise in the stderr
log like:
objdump: '/tmp/autopkgtest.83yGoI/build.fHB/src/test/TEST-01-BASIC/systemd-journald': No such file
However this also applies to the call to systemd-nspawn, which the debian
upstream test wrapper was sed-adjusting to use the installed binary
instead of the binary in $BUILD_DIR. This commit allows removing that
sed processing of the test-functions file during Ubuntu CI test.
This dir is created by create_empty_image_rootdir, as well as indirectly
by some other functions, but it should be created by import_initdir so
the newly-exported $initdir exists and can be used immediately without
relying on other functions to create it.
