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system tests: new tests for run, exec

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- Issue #6735 : problem with multiple namespaces; confirms
   combinations of --userns=keep-id, --privileged, --user=XX

 - Issue #6829 : --userns=keep-id will add a /etc/passwd entry

 - Issue #6593 : podman exec, with --userns=keep-id, errors
   (test is currently skipped because issue remains live)

...and, addendum: add new helper function, remove_same_dev_warning.
Some CI systems issue a warning on podman run --privileged:

   WARNING: The same type, major and minor should not be used for multiple devices.

We already had special-case code to ignore than in the SELinux
test, but now we're seeing it in the new run tests I added, so
I've refactored the "ignore this warning" code and written
tests for the removal code.

Signed-off-by: Ed Santiago <santiago@redhat.com>
This commit is contained in:
Ed Santiago
2020-07-13 09:42:47 -06:00
parent 50cd21e181
commit fea3eea68b
5 changed files with 164 additions and 11 deletions
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32
test/system/helpers.bash
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@ -392,5 +392,37 @@ function find_exec_pid_files() {
find $storage_path -type f -iname 'exec_pid_*'
fi
}
#############################
# remove_same_dev_warning # Filter out useless warning from output
#############################
#
# On some CI systems, 'podman run --privileged' emits a useless warning:
#
# WARNING: The same type, major and minor should not be used for multiple devices.
#
# This obviously screws us up when we look at output results.
#
# This function removes the warning from $output and $lines
#
function remove_same_dev_warning() {
# No input arguments. We operate in-place on $output and $lines
local i=0
local -a new_lines=()
while [[ $i -lt ${#lines[@]} ]]; do
if expr "${lines[$i]}" : 'WARNING: .* same type, major.* multiple' >/dev/null; then
:
else
new_lines+=("${lines[$i]}")
fi
i=$(( i + 1 ))
done
lines=("${new_lines[@]}")
output=$(printf '%s\n' "${lines[@]}")
}
# END miscellaneous tools
###############################################################################