Add command: shutdown

This patch adds a new command, shutdown, which allows us to shut down
a machine without having another VM execute a script.

The patch also removes the now obsolete shutdown_controller.sh.

Change-Id: Ie7f4b4104b807d0157abd2e72d6e273f7268d8a1

labs/osbash/config/scripts.ubuntu_cluster

@@ -70,15 +70,13 @@ cmd snapshot_cycle -n compute1 cinder-volume_installed
 
 cmd queue ubuntu/setup_telemetry_compute.sh
 cmd snapshot_cycle -n compute1 telemetry-compute_installed
+cmd boot -n compute1
 
 # - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 # Take snapshot of database changes on controller VM, too
-cmd queue shutdown_controller.sh
-cmd boot -n compute1
+cmd shutdown -n controller
 
-cmd wait_for_shutdown -n controller
 cmd snapshot -n controller controller_-_compute1_node_installed
-#cmd boot -n controller
 #==============================================================================
 cmd queue config_public_network.sh
 cmd queue config_private_network.sh

labs/osbash/lib/osbash/functions-host.sh

@@ -424,6 +424,15 @@ function command_from_config {
             echo >&2 vm_conditional_snapshot "$vm_name" "$shot_name"
             vm_conditional_snapshot "$vm_name" "$shot_name"
             ;;
+        shutdown)
+            # Format: shutdown [-n <node_name>]
+            get_cmd_options $args
+            echo >&2 "vm_acpi_shutdown $vm_name"
+            vm_acpi_shutdown "$vm_name"
+            echo >&2 vm_wait_for_shutdown "$vm_name"
+            vm_wait_for_shutdown "$vm_name"
+            conditional_sleep 1
+            ;;
         wait_for_shutdown)
             # Format: wait_for_shutdown [-n <node_name>]
             get_cmd_options $args

labs/osbash/scripts/shutdown_controller.sh

@@ -1,32 +0,0 @@
-#!/usr/bin/env bash
-set -o errexit -o nounset
-TOP_DIR=$(cd "$(dirname "$0")/.." && pwd)
-source "$TOP_DIR/config/paths"
-source "$LIB_DIR/functions.guest.sh"
-
-indicate_current_auto
-
-exec_logfile
-
-# At this point in the cluster build, we just rebooted the compute VM to take
-# a snapshot, and we are about to reboot the controller node for the same
-# purpose.
-#
-# About a minute after we reboot the controller, the status of nova-compute
-# (according to nova-manage service list) becomes "XXX".
-#
-# If we sleep for 2 seconds now, before rebooting the controller, the
-# nova-compute service on the compute node will keep running and the status
-# will automatically return to ":-)" after some time (may take several
-# minutes). If we don't sleep here, the nova-compute service on compute will
-# die within a few minutes (needs manual service restart or a compute node
-# reboot).
-sleep 2
-
-echo "Shutting down the controller node."
-ssh \
-    -o "UserKnownHostsFile /dev/null" \
-    -o "StrictHostKeyChecking no" \
-    -i "$HOME/.ssh/osbash_key" \
-    controller \
-    sudo /sbin/shutdown -P now