podman/test/system/030-run.bats

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#!/usr/bin/env bats
load helpers
@test "podman run - basic tests" {
rand=$(random_string 30)
# 2019-09 Fedora 31 and rawhide (32) are switching from runc to crun
# because of cgroups v2; crun emits different error messages.
# Default to runc:
err_no_such_cmd="Error: .*: starting container process caused.*exec:.*stat /no/such/command: no such file or directory"
err_no_exec_dir="Error: .*: starting container process caused.*exec:.* permission denied"
# ...but check the configured runtime engine, and switch to crun as needed
run_podman info --format '{{ .Host.OCIRuntime.Path }}'
if expr "$output" : ".*/crun"; then
err_no_such_cmd="Error: executable file not found in \$PATH: No such file or directory: OCI runtime command not found error"
err_no_exec_dir="Error: open executable: Operation not permitted: OCI runtime permission denied error"
fi
tests="
true | 0 |
false | 1 |
sh -c 'exit 32' | 32 |
echo $rand | 0 | $rand
/no/such/command | 127 | $err_no_such_cmd
/etc | 126 | $err_no_exec_dir
"
tests_run=0
while read cmd expected_rc expected_output; do
if [ "$expected_output" = "''" ]; then expected_output=""; fi
# THIS IS TRICKY: this is what lets us handle a quoted command.
# Without this incantation (and the "$@" below), the cmd string
# gets passed on as individual tokens: eg "sh" "-c" "'exit" "32'"
# (note unmatched opening and closing single-quotes in the last 2).
# That results in a bizarre and hard-to-understand failure
# in the BATS 'run' invocation.
# This should really be done inside parse_table; I can't find
# a way to do so.
eval set "$cmd"
# FIXME: The </dev/null is a hack, necessary because as of 2019-09
# podman-remote has a bug in which it silently slurps up stdin,
# including the output of parse_table (i.e. tests to be run).
run_podman $expected_rc run $IMAGE "$@" </dev/null
# FIXME: remove conditional once podman-remote issue #4096 is fixed
if ! is_remote; then
is "$output" "$expected_output" "podman run $cmd - output"
fi
tests_run=$(expr $tests_run + 1)
done < <(parse_table "$tests")
# Make sure we ran the expected number of tests! Until 2019-09-24
# podman-remote was only running one test (the "true" one); all
# the rest were being silently ignored because of podman-remote
# bug #4095, in which it slurps up stdin.
is "$tests_run" "$(grep . <<<$tests | wc -l)" "Ran the full set of tests"
}
@test "podman run - uidmapping has no /sys/kernel mounts" {
skip_if_rootless "cannot umount as rootless"
run_podman run --rm --uidmap 0:100:10000 $IMAGE mount
run grep /sys/kernel <(echo "$output")
is "$output" "" "unwanted /sys/kernel in 'mount' output"
run_podman run --rm --net host --uidmap 0:100:10000 $IMAGE mount
run grep /sys/kernel <(echo "$output")
is "$output" "" "unwanted /sys/kernel in 'mount' output (with --net=host)"
}
# 'run --rm' goes through different code paths and may lose exit status.
# See https://github.com/containers/libpod/issues/3795
@test "podman run --rm" {
run_podman 0 run --rm $IMAGE /bin/true
run_podman 1 run --rm $IMAGE /bin/false
# Believe it or not, 'sh -c' resulted in different behavior
run_podman 0 run --rm $IMAGE sh -c /bin/true
run_podman 1 run --rm $IMAGE sh -c /bin/false
}
@test "podman run --name" {
randomname=$(random_string 30)
# Assume that 4 seconds gives us enough time for 3 quick tests (or at
# least for the 'ps'; the 'container exists' should pass even in the
# unlikely case that the container exits before we get to them)
run_podman run -d --name $randomname $IMAGE sleep 4
cid=$output
run_podman ps --format '{{.Names}}--{{.ID}}'
is "$output" "$randomname--${cid:0:12}"
run_podman container exists $randomname
run_podman container exists $cid
# Done with live-container tests; now let's test after container finishes
run_podman wait $cid
# Container still exists even after stopping:
run_podman container exists $randomname
run_podman container exists $cid
# ...but not after being removed:
run_podman rm $cid
run_podman 1 container exists $randomname
run_podman 1 container exists $cid
}
@test "podman run --pull" {
skip_if_remote "podman-remote does not emit 'Trying to pull' msgs"
run_podman run --pull=missing $IMAGE true
is "$output" "" "--pull=missing [present]: no output"
run_podman run --pull=never $IMAGE true
is "$output" "" "--pull=never [present]: no output"
# Now test with busybox, which we don't have present
run_podman 125 run --pull=never busybox true
is "$output" "Error: unable to find a name and tag match for busybox in repotags: no such image" "--pull=never [busybox/missing]: error"
run_podman run --pull=missing busybox true
is "$output" "Trying to pull .*" "--pull=missing [busybox/missing]: fetches"
run_podman run --pull=always busybox true
is "$output" "Trying to pull .*" "--pull=always [busybox/present]: fetches"
run_podman rm -a
run_podman rmi busybox
}
# 'run --rmi' deletes the image in the end unless it's used by another container
@test "podman run --rmi" {
skip_if_remote
# Name of a nonlocal image. It should be pulled in by the first 'run'
NONLOCAL_IMAGE=busybox
run_podman 1 image exists $NONLOCAL_IMAGE
# Run a container, without --rm; this should block subsequent --rmi
run_podman run --name keepme $NONLOCAL_IMAGE /bin/true
run_podman image exists $NONLOCAL_IMAGE
# Now try running with --rmi : it should succeed, but not remove the image
run_podman run --rmi --rm $NONLOCAL_IMAGE /bin/true
run_podman image exists $NONLOCAL_IMAGE
# Remove the stray container, and run one more time with --rmi.
run_podman rm keepme
run_podman run --rmi --rm $NONLOCAL_IMAGE /bin/true
run_podman 1 image exists $NONLOCAL_IMAGE
}
# 'run --conmon-pidfile --cid-file' makes sure we don't regress on these flags.
# Both are critical for systemd units.
@test "podman run --conmon-pidfile --cidfile" {
pidfile=${PODMAN_TMPDIR}/pidfile
cidfile=${PODMAN_TMPDIR}/cidfile
cname=$(random_string)
run_podman run --name $cname \
--conmon-pidfile=$pidfile \
--cidfile=$cidfile \
--detach \
$IMAGE sleep infinity
cid="$output"
is "$(< $cidfile)" "$cid" "contents of cidfile == container ID"
conmon_pid=$(< $pidfile)
is "$(readlink /proc/$conmon_pid/exe)" ".*/conmon" \
"conmon pidfile (= PID $conmon_pid) points to conmon process"
# All OK. Kill container.
run_podman rm -f $cid
# Podman must not overwrite existing cid file.
# (overwriting conmon-pidfile is OK, so don't test that)
run_podman 125 run --cidfile=$cidfile $IMAGE true
is "$output" "Error: container id file exists. .* delete $cidfile" \
"podman will not overwrite existing cidfile"
}
# vim: filetype=sh