tree a97cfee1c0caaa3d622913f290fbab2d88c0b693
parent e96ce44075bef3362be8ea86987dd7b5ca2a1ad1
author Damien Martin-Guillerez <dmarting@google.com> 1498989495 +0600
committer Damien Martin-Guillerez <dmarting@google.com> 1499074015 +0600

Adds command to gce/vm.sh and improves error message

This commit add a lengthly usage message to gce/vm.sh and some utility
commands to it:
  - ssh so we can just forget in which zone is the VM we want to ssh in :)
  - ssh_command to execute a SSH command on the specified VM
  - kill_container to kill running container, e.g. to restart a container
    on the prod instance

Change-Id: I4058956add1d277ff46104bff29185ce6bf381cf