VNF Primitive Upgrade

The purpose of the Upgrade primitive is to perform an upgrade of operational software on your VNF.

Implementing the primitive is optional.

@when('actions.upgrade')
def upgrade_vnf():
    err = ''
    try:
        result, err = charms.sshproxy._run("/srv/myvnf/upgrade.sh")
    except:
        action_fail('command failed:' + err)
    else:
        action_set({'outout': result})
    finally:
        clear_flag('actions.upgrade')