Find PID info for cri-o worker node

From top output below, what’s pod and namespace of PID 1496378 ?

$ top
top - 07:44:05 up 33 days, 16:59,  1 user,  load average: 0.06, 0.17, 0.65
Tasks: 298 total,   1 running, 287 sleeping,   0 stopped,  10 zombie
%Cpu(s):  1.3 us,  1.8 sy,  0.0 ni, 97.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 
MiB Mem :  32164.2 total,  19245.4 free,   7210.3 used,   5708.6 buff/cache
MiB Swap:      0.0 total,      0.0 free,      0.0 used.  28163.7 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAN
3044818 root      20   0 7288100 743348  37508 S   2.0   2.3  10807:03 kubelet
1496378 xadm      20   0 2336832 392920  34856 S   0.0   1.2   7:28.62 mysqld
    847 root      20   0 6305616 248856  26752 S   2.0   0.8   3886:47 crio  
1494428 root      20   0 2187556 233064  45072 S   0.0   0.7  26:46.82 minio

ps -ef|grep 1496378
xadm   1496378 1496375  0 Dec16 ?        00:07:29 /opt/bitnami/mysql/bin/mysqld --defaults-file=/opt/bitnami/mysql/conf/my.cnf --basedir=/opt/bitnami/mysql --datadir=/bitnami/mysql/data --socket=/opt/bitnami/mysql/tmp/mysql.sock --pid-file=/opt/bitnami/mysql/tmp/mysqld.pid

As you can see PID 1496378 is MySQL server ,but how to link it to kubernetes pod and namespace ? Try this one

#!/bin/bash

if [ -z "$1" ] 
then
 echo "Usage $0 [PID]"
 exit
fi

if ! grep crio /proc/$1/cgroup  &>/dev/null
then
 echo PID: $1 is not container or PID not found
 exit
fi

PODID=$(sudo head -1  /proc/$1/cgroup |awk -F"crio-" {'print $2'})
PODID=${PODID:0:13}
sudo crictl inspect $PODID | jq '.status.labels'

./pidInfo.sh  1496378
{
  "io.kubernetes.container.name": "mysql",
  "io.kubernetes.pod.name": "x-mysql-0",
  "io.kubernetes.pod.namespace": "x-portal",
  "io.kubernetes.pod.uid": "50579273-e3f1-479b-a014-2d3a5d13aea7"
}

PS. crictl and jq is needed

That’s all