Skip to main content

Execute Commands and Access Shell in Containers

Execute a single command​

Execute ps command to identify running processes in container kettle-popper-manager which is a part of service instance popcorn-controller-service-1 in application popcorn-controller running on gothenburg-bergakungen site.

supctl do --site gothenburg-bergakungen applications popcorn-controller \
service-instances popcorn-controller-service-1 containers kettle-popper-manager \
exec ps
PID   USER     TIME  COMMAND
    1 root      0:00 /sbin/docker-init -- /bin/sh -c $EXECUTABLE
    7 root      0:00 kettle-popper-manager
   36 root      0:00 ps

Execute an interactive command​

Standard input is connected to command's standard input and pseudo-TTY is allocated. This allows to run interactive commands, like shell. This example executes sh in a container on a remote site.

supctl do --site gothenburg-bergakungen applications popcorn-controller \
service-instances popcorn-controller-service-1 \
containers kettle-popper-manager exec-interactive sh
/ $ ps
PID   USER     TIME  COMMAND
    1 root      0:00 /sbin/docker-init -- /bin/sh -c $EXECUTABLE
    7 root      0:00 kettle-popper-manager
   48 root      0:00 sh
   54 root      0:00 ps
/ $ exit

Using the Web UI​

You can also run an interactive exec session from the Web UI. Navigate to the application site and click overview and expand the application to see the container:

Exec from Overview

Or you can use the containers tab:

Exec from Containers

That will open a terminal session in your browser:

Exec interactive

If you use the "Open terminal tab" you will get a separate browser tab for the session.