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tests: Add case for running rpm -q in a %post

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On traditional rpm systems this can hang because the outer
process may have an rpmdb lock, and the inner one wants
to acquire a lock.  Here we're sandboxing the `%post` script
and it's targeting a separate temporary filesystem compared to
the booted one (so there's no double locking).  Plus we don't
create the rpmdb in the target until all scripts have run.

Inspired by https://twitter.com/_msw_/status/1335981558717587473
This commit is contained in:
Colin Walters 2020-12-07 18:42:23 +00:00 committed by OpenShift Merge Robot
parent 73fe78140d
commit cd2307ccc2
1 changed files with 8 additions and 0 deletions
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8
tests/vmcheck/test-layering-scripts.sh
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@ -226,6 +226,14 @@ vm_cmd test -f /home/core/somedata -a -f /etc/passwd -a -f /tmp/sometmpfile -a -
assert_file_has_content err.txt 'error: Sanity-checking final rootfs: Executing bwrap(/usr/bin/true)'
echo "ok impervious to rm -rf post"
cursor=$(vm_get_journal_cursor)
vm_build_rpm post-query-rpmdb post "rpm -q bash"
if vm_rpmostree install post-query-rpmdb; then
assert_not_reached "Ran rpm -q bash in %post"
fi
vm_assert_journal_has_content "$cursor" 'rpm-ostree(post-query-rpmdb.post).*package bash is not installed'
echo "ok post that calls rpm -q"
# capabilities
vm_build_rpm test-cap-drop post "capsh --print > /usr/share/rpmostree-capsh.txt"
vm_rpmostree install test-cap-drop