Apparently, lima's experimental/fedora-rawhide image does not include
which rpm, and we don't really want to bother installing it.
Replace "which" with "command -v". Looks like this was the only place;
we already use "command -v" everywhere else.
This should fix lima (experimental/fedora-rawhide) CI.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
When RUNC_USE_SYSTEMD is set, tests/rootless.sh is using
ssh -tt rootless@localhost
to run tests as rootless user. In this case, local environment is not
passed to the user's ssh session (unless explicitly specified), and so
the tests do not get ROOTLESS_FEATURES.
As a result, idmap-related tests are skipped when running as rootless
using systemd cgroup driver:
integration test (systemd driver)
...
[02] run rootless tests ... (idmap)
...
ok 286 runc run detached ({u,g}id != 0) # skip test requires rootless_idmap
...
Fix this by creating a list of environment variables needed by the
tests, and adding those to ssh command line (in case of ssh) or
exporting (in case of sudo) so both cases work similarly.
Also, modify disable_idmap to unset variables set in enable_idmap so
they are not exported at all if idmap is not in features.
Fixes: bf15cc99 ("cgroup v2: support rootless systemd")
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
On some systems (e.g., AlmaLinux 8), systemd automatically removes cgroup paths
when they become empty (i.e., contain no processes). To prevent this, we spawn
a dummy process to pin the cgroup in place.
Fix: https://github.com/opencontainers/runc/issues/5003
Signed-off-by: lifubang <lifubang@acmcoder.com>
For some reason, ssh-keygen is unable to write to /root even as root on
AlmaLinux 8:
# id
uid=0(root) gid=0(root) groups=0(root) context=system_u:system_r:initrc_t:s0
# id -Z
ls -ld /root
# ssh-keygen -t ecdsa -N "" -f /root/rootless.key || cat /var/log/audit/audit.log
Saving key "/root/rootless.key" failed: Permission denied
The audit.log shows:
> type=AVC msg=audit(1744834995.352:546): avc: denied { dac_override } for pid=13471 comm="ssh-keygen" capability=1 scontext=system_u:system_r:ssh_keygen_t:s0 tcontext=system_u:system_r:ssh_keygen_t:s0 tclass=capability permissive=0
> type=SYSCALL msg=audit(1744834995.352:546): arch=c000003e syscall=257 success=no exit=-13 a0=ffffff9c a1=5641c7587520 a2=241 a3=180 items=0 ppid=4978 pid=13471 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="ssh-keygen" exe="/usr/bin/ssh-keygen" subj=system_u:system_r:ssh_keygen_t:s0 key=(null)␝ARCH=x86_64 SYSCALL=openat AUID="unset" UID="root" GID="root" EUID="root" SUID="root" FSUID="root" EGID="root" SGID="root" FSGID="root"
A workaround is to use /root/.ssh directory instead of just /root.
While at it, let's unify rootless user and key setup into a single place.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
It seems that set -x was temporarily added as a debug measure, but
slipped into the final commit.
Remove it, for the sake of test logs brevity.
Fixes: 9f656dbb11
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Strictly speaking, == is for [[ only, not for [ / test,
and, unlike =, the right side is a pattern.
To avoid confusion, use =. In cases where we compare with empty string,
use -z instead.
Keep using [[ in some cases since it does not require quoting the left
and right side of comparison (I trust shellcheck on that one).
This should have no effect (other than the code being a tad more
strict).
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Audit all checks for non-empty variables (i.e. ' -z ', ' -n ',
' != ""' and '= ""'), and fix those cases where a variable might be
unset. Those variables (that might not be set) are
- RUNC_USE_SYSTEMD
- BATS_RUN_TMPDIR
- AUX_UID
- AUX_DIR
- SD_PARENT_NAME
- REL_PARENT_PATH
- ROOT
- HAVE_CRIU
- ROOTLESS_FEATURES
- and a few test-specific or file-specific variables
This should allow us to enable set -u.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
As Cirrus CI does not provide a real terminal this uses the same
'ssh -tt' workaround as the Vagrant setup. This sets up the
CentOS 7 and 8 to allow SSH as root to localhost so that we can run
all the tests via 'ssh -tt'.
Not going through vagrant reduces CI times for CentOS 7 and 8 from 6
minutes to 4 minutes.
Signed-off-by: Adrian Reber <areber@redhat.com>
Without this, the test case fails with
> Writing 1000000 to /sys/fs/cgroup/cpu,cpuacct/runc-cgroups-integration-test/cpu.rt_period_us
> /tmp/bats-run-106836/bats.116418.src: line 548: /sys/fs/cgroup/cpu,cpuacct/runc-cgroups-integration-test/cpu.rt_period_us: Permission denied
Since we do not currently have a setup to test this, this went
unnoticed (can be seen in RHEL8 though).
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Signed-off-by: Adrian Reber <areber@redhat.com>
Currently, set -e ("exit on error") is only set before running tests.
The bad consequence is the script may fail to set up test environment
but will still run the tests.
Use "set -e -u -o pipefail" for the whole script to catch potential
issues with test setup and/or the script itself.
A few caveats:
1. We have to set RUNC_USE_SYSTEMD to an empty value if it is unset, so
that the subsequent checks like [ -z "$RUNC_USE_SYSTEMD" ] won't
trigger a "unbound variable" error. Same for ROOTLESS_TESTPATH.
2. Functions that have code like [ -f $file ] && do_something towards
the end may return 1 in case $file does not exist (as test aka [
was the last operation performed, and its exit code is returned.
This is why we had to add return 0.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This simplifies and optimizes getting container images used for tests.
Currently, we have three different ways of getting images:
1. (for hello-world) the image is in this repo under tests/integration/testdata.
2. (for busybox) download it from github (the repo that is used for
preparing official Docker image) using curl.
3. (for debian) download from Docker hub, using skopeo and umoci.
To further complicate things, we have to do this downloading in multiple
scenarios (at least 4): locally, in github CI, from Dockefile, inside a
Vagrant VM. For each scenario, we have to install skopeo and umoci, and
those two are not yet universally available for all the distros that we
use.
Yet another complication is those images are used for tests/integration
(bats-driven tests) as well as for libcontainer/integration (go tests).
The tests in libcontainer/integration rely on busybox being available
from /busybox, and the bats tests just download the images to a
temporary location during every run.
It is also hard to support CI for other architectures, because all
the machinery for preparing images is so complicated.
This commit is an attempt to simplify and optimize getting images,
mostly by getting rid of skopeo and umoci dependencies, but also
by moving the download logic into one small shell script, which
is used from all the places.
Benefits:
- images (if not present) are only downloaded once;
- same images are used for both kind of tests (go and bats);
- same images are used for local and inside-docker tests
(because source directory is mounted into container);
- the download logic is located within 1 simple shell script.
[v2: fix eval; more doc to get-images; print URL if curl failed]
[v3: use "slim" debian, twice as small]
[v4: fix not using $image in setup_bundle]
[v5: don't remove TESTDATA from helpers.bash]
[v6: add i386 support]
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
The test setup is complicated, as we want to run it as non-root,
but we need to create a directory owned by a particular user,
and root is needed for chown. To do that, we hijack enable_idmap.
Now, there is no ideal place to clean up AUX_DIR. A function
cleanup is called after the test to do so. Note that it won't
be called if the test fails.
This was verified to fail before and pass after the
previous commit.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
I played with shfmt options (-bn, -ci, -sr) a bit trying to minimize
the patch generated (and also because I don't have a strong preference
on these matters), and it appears to be that the patch size is about the
same nevertheless, so I chose no options.
This commit is brought to you by
shfmt -ln bash -w man/*.sh script/*.sh tests/*.sh tests/integration/*.bash
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
This ensures that we don't hard-code the set of cgroups on the host, as
well as making the permissions granted by rootless.sh much more
restrictive (to improve the scope of testing).
Signed-off-by: Aleksa Sarai <asarai@suse.de>
Enable several previously disabled tests (for the idmap execution mode)
for rootless containers, in addition to making all tests use the
additional mappings. At the moment there's no strong need to add any
additional tests purely for rootless_idmap.
Signed-off-by: Aleksa Sarai <asarai@suse.de>
This is necessary in order to add proper opportunistic tests, and is a
placeholder until we add tests for new{uid,gid}map configurations.
Signed-off-by: Aleksa Sarai <asarai@suse.de>
Kir Kolyshkin