fix: resolve issues with cgroup2 and lxc4

This commit is contained in:
Glenn Y. Rolland 2021-05-04 19:26:21 +02:00
parent c167ac7f83
commit a9b0d34bb2

View file

@ -144,9 +144,12 @@ CONTAINER_IFNAME=${CONTAINER_IFNAME:-eth1}
# Second step: find the guest (for now, we only support LXC containers)
while read _ mnt fstype options _; do
[ "$fstype" != "cgroup" ] && continue
[ "$fstype" != "cgroup2" ] && [ "$fstype" != "cgroup" ] && continue
if [ "$fstype" = "cgroup" ]; then
echo "$options" | grep -qw devices || continue
fi
CGROUPMNT=$mnt
CGROUPTYPE=$fstype
done < /proc/mounts
[ "$CGROUPMNT" ] || {
@ -154,7 +157,9 @@ done < /proc/mounts
}
# Try to find a cgroup matching exactly the provided name.
N=$(find "$CGROUPMNT" -name "$GUESTNAME" | wc -l)
[ "$CGROUPTYPE" = "cgroup" ] && N=$(find "$CGROUPMNT" -name "$GUESTNAME" | wc -l)
[ "$CGROUPTYPE" = "cgroup2" ] && N=$(find "$CGROUPMNT" -name "lxc.payload.$GUESTNAME" | wc -l)
case "$N" in
0)
# If we didn't find anything, try to lookup the container with Docker.
@ -235,7 +240,8 @@ fi
if [ "$DOCKERPID" ]; then
NSPID=$DOCKERPID
else
NSPID=$(head -n 1 "$(find "$CGROUPMNT" -name "$GUESTNAME" | head -n 1)/tasks")
NSPATH=$(find "$CGROUPMNT" -name "$GUESTNAME" | head -n 1)
[ -f "$NSPATH/tasks" ] && NSPID=$(head -n 1 "$NSPATH/tasks")
[ "$NSPID" ] || {
# it is an alternative way to get the pid
NSPID=$(lxc-info -n "$GUESTNAME" | grep PID | grep -Eo '[0-9]+')