# we use busybox rootfs and /test1 to start container
root@demo:/opt/busybox.test# cat rootfs/test1
#!/bin/sh
sleep 100000&
while true; do
  wait || true
done

# start container test
root@demo:/opt/busybox.test# ctr run -d --rootfs ./rootfs test /test1
root@demo:/opt/busybox.test# ctr t ls
TASK    PID      STATUS    
test    17974    RUNNING
root@demo:/opt/busybox.test# ctr t ps test
PID      INFO
17974    &ProcessDetails{ExecID:test,}
17995    -

# start container test-id with pid ns of container test
root@demo:/opt/busybox.test# ctr run -d --with-ns "pid:/proc/17974/ns/pid" --rootfs ./rootfs test-pid /test1
root@demo:/opt/busybox.test# ctr t ls
TASK        PID      STATUS    
test        17974    RUNNING
test-pid    18067    RUNNING
root@demo:/opt/busybox.test# ctr t ps test-pid
PID      INFO
18067    &ProcessDetails{ExecID:test-pid,}
18088    -

# container test-id's init process is dead
root@demo:/opt/busybox.test# ctr t kill -s 9 test-pid
root@demo:/opt/busybox.test# ctr t ps test-pid
PID      INFO
18088    -
root@demo:/opt/busybox.test# ctr t ls
TASK        PID      STATUS    
test        17974    RUNNING
test-pid    18067    STOPPED

# try to delete the task test-pid, it causes shim service stuck
root@demo:/opt/busybox.test# ctr t delete test-pid
^C
root@demo:/opt/busybox.test# ctr t ls
^C
root@demo:/opt/busybox.test# ctr t ps test
PID      INFO
17974    &ProcessDetails{ExecID:test,}
17995    -
root@demo:/opt/busybox.test# ctr t ps test-pid
^C
root@demo:/opt/busybox.test#