Description

As a user when I'm building new projects I tend to spin up and kill a lot of containers for troubleshooting purposes.

Typically I do something like this alias dka='docker kill $(docker ps -q)', but I wonder why there isn't a flag for either docker stop or docker kill that does this.

If docker ps -q returns nothing, then naturally docker kill will display the help. Thus extra steps are needed in scripting to avoid this output.

Proposal

Could docker kill and/or docker stop have a -a/--all flag that terminates any available running containers? I imagine the -s flag could be used in combination like docker kill -a -s SIGQUIT

Another option would be docker killall which would allow for more in depth options like killall. This isn't necessary for my use case though.

If this is a valid feature, I'd like to give it a shot at implementing it 👍

Thank you