Files
podman/test/system/helpers.sig-proxy.bash
Paul Holzinger 6bc52c9c5e pkg/rootless: correctly handle proxy signals on reexec
There are quite a lot of places in podman were we have some signal
handlers, most notably libpod/shutdown/handler.go.

However when we rexec we do not want any of that and just send all
signals we get down to the child obviously. So before we install our
signal handler we must first reset all others with signal.Reset().

Also while at it fix a problem were the joinUserAndMountNS() code path
would not forward signals at all. This code path is used when you have
running containers but the pause process was killed.

Fixes #16091
Given that signal handlers run in different goroutines parallel it would
explain why it flakes sometimes in CI. However to my understanding this
flake can only happen when the pause process is dead before we run the
podman command. So the question still is what kills the pause process?

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
2023-05-25 16:48:15 +02:00

51 lines
1.3 KiB
Bash

# -*- bash -*-
#
# BATS helpers for sig-proxy functionality
#
# Command to run in each of the tests.
SLEEPLOOP='trap "echo BYE;exit 0" INT;echo READY;while :;do sleep 0.1;done'
# Main test code: wait for container to exist and be ready, send it a
# signal, wait for container to acknowledge and exit.
function _test_sigproxy() {
local cname=$1
local kidpid=$2
# Wait for container to appear
local timeout=10
while :;do
sleep 0.5
run_podman '?' container exists $cname
if [[ $status -eq 0 ]]; then
break
fi
timeout=$((timeout - 1))
if [[ $timeout -eq 0 ]]; then
run_podman ps -a
die "Timed out waiting for container $cname to start"
fi
done
# Now that container exists, wait for it to declare itself READY
wait_for_ready $cname
# Signal, and wait for container to exit
kill -INT $kidpid
timeout=20
while :;do
sleep 0.5
run_podman logs $cname
if [[ "$output" =~ BYE ]]; then
break
fi
timeout=$((timeout - 1))
if [[ $timeout -eq 0 ]]; then
run_podman ps -a
die "Timed out waiting for BYE from container"
fi
done
run_podman rm -f -t0 $cname
}