runc kill [--all|-a] container-id [signal]
By default, runc kill sends SIGTERM to the container's initial process only.
A different signal can be specified either by its name (with or without the SIG prefix), or its numeric value. Use kill(1) with -l option to list available signals.
Send the signal to all processes inside the container.
The following will send a KILL signal to the init process of the ubuntu01 container:
# runc kill ubuntu01 KILL