Finding the pid limit with cgroupv2 and crio

gistfile1.txt

# get the UID of the running pod and substitute dashes for underscores
POD_UID=$(crictl pods --name dns-default -o json | jq -r '.items[0].metadata.uid' | tr "-" "_")

# check the cgroup contents if it has resource requests:
systemd-cgls /kubepods.slice/kubepods-burstable.slice/kubepods-burstable-pod${POD_UID}.slice
# or if it doesn't :o
systemd-cgls /kubepods.slice/kubepods-besteffort.slice/kubepods-besteffort-pod${POD_UID}.slice

# check the pid max
cat /sys/fs/cgroup/kubepods.slice/kubepods-burstable.slice/kubepods-burstable-pod${POD_UID}.slice/pids.max
4096