mirror of
https://github.com/containers/podman
synced 2024-10-21 01:34:37 +00:00
143 lines
3.9 KiB
Bash
143 lines
3.9 KiB
Bash
#!/usr/bin/env bats -*- bats -*-
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#
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# Tests for systemd sdnotify
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#
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load helpers
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# Shared throughout this module: PID of socat process, and path to its log
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_SOCAT_PID=
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_SOCAT_LOG=
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function setup() {
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skip_if_remote
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# TODO: remove this once CI systems have newer crun and container-selinux
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skip "TEMPORARY SKIP - until CI systems get new crun, container-selinux"
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basic_setup
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}
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function teardown() {
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unset NOTIFY_SOCKET
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_stop_socat
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basic_teardown
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}
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###############################################################################
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# BEGIN helpers
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# Run socat process on a socket, logging to well-known path. Each received
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# packet is logged with a newline appended, for ease of parsing the log file.
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function _start_socat() {
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_SOCAT_LOG="$PODMAN_TMPDIR/socat.log"
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rm -f $_SOCAT_LOG
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socat unix-recvfrom:"$NOTIFY_SOCKET",fork \
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system:"(cat;echo) >> $_SOCAT_LOG" &
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_SOCAT_PID=$!
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}
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# Stop the socat background process and clean up logs
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function _stop_socat() {
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if [[ -n "$_SOCAT_PID" ]]; then
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kill $_SOCAT_PID
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fi
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_SOCAT_PID=
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if [[ -n "$_SOCAT_LOG" ]]; then
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rm -f $_SOCAT_LOG
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fi
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}
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# Check that MAINPID=xxxxx points to a running conmon process
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function _assert_mainpid_is_conmon() {
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local mainpid=$(expr "$1" : "MAINPID=\([0-9]\+\)")
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test -n "$mainpid" || die "Could not parse '$1' as 'MAINPID=nnnn'"
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test -d /proc/$mainpid || die "sdnotify MAINPID=$mainpid - but /proc/$mainpid does not exist"
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# e.g. /proc/12345/exe -> /usr/bin/conmon
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local mainpid_bin=$(readlink /proc/$mainpid/exe)
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is "$mainpid_bin" ".*/conmon" "sdnotify MAINPID=$mainpid is conmon process"
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}
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# END helpers
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###############################################################################
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# BEGIN tests themselves
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@test "sdnotify : ignore" {
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export NOTIFY_SOCKET=$PODMAN_TMPDIR/ignore.sock
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_start_socat
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run_podman 1 run --rm --sdnotify=ignore $IMAGE printenv NOTIFY_SOCKET
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is "$output" "" "\$NOTIFY_SOCKET in container"
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is "$(< $_SOCAT_LOG)" "" "nothing received on socket"
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_stop_socat
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}
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@test "sdnotify : conmon" {
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export NOTIFY_SOCKET=$PODMAN_TMPDIR/conmon.sock
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_start_socat
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run_podman run -d --name sdnotify_conmon_c \
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--sdnotify=conmon \
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$IMAGE \
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sh -c 'printenv NOTIFY_SOCKET;echo READY;while ! test -f /stop;do sleep 0.1;done'
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cid="$output"
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wait_for_ready $cid
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run_podman logs sdnotify_conmon_c
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is "$output" "READY" "\$NOTIFY_SOCKET in container"
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run cat $_SOCAT_LOG
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is "${lines[-1]}" "READY=1" "final output from sdnotify"
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_assert_mainpid_is_conmon "${lines[0]}"
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# Done. Stop container, clean up.
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run_podman exec $cid touch /stop
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run_podman rm $cid
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_stop_socat
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}
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@test "sdnotify : container" {
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# Sigh... we need to pull a humongous image because it has systemd-notify.
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# FIXME: is there a smaller image we could use?
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_FEDORA=registry.fedoraproject.org/fedora:latest
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# Pull that image. Retry in case of flakes.
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run_podman pull $_FEDORA || \
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run_podman pull $_FEDORA || \
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run_podman pull $_FEDORA
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export NOTIFY_SOCKET=$PODMAN_TMPDIR/container.sock
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_start_socat
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run_podman run -d --sdnotify=container $_FEDORA \
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sh -c 'printenv NOTIFY_SOCKET;echo READY;systemd-notify --ready;while ! test -f /stop;do sleep 0.1;done'
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cid="$output"
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wait_for_ready $cid
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run_podman logs $cid
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is "${lines[0]}" "/.*/container\.sock/notify" "NOTIFY_SOCKET is passed to container"
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# With container, READY=1 isn't necessarily the last message received;
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# just look for it anywhere in received messages
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run cat $_SOCAT_LOG
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is "$output" ".*READY=1" "received READY=1 through notify socket"
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_assert_mainpid_is_conmon "${lines[0]}"
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# Done. Stop container, clean up.
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run_podman exec $cid touch /stop
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run_podman rm $cid
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run_podman rmi $_FEDORA
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_stop_socat
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}
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# vim: filetype=sh
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