Merge pull request #33 from appcelerator/monitor

Add a monitor command to the swarm script

swarm

@@ -82,7 +82,7 @@ ROLE=infrastructure
 usage() {
   cat << USAGE >&2
 Usage:
-  $(basename $0) [pull|start|stop|restart|ls]
+  $(basename $0) [pull|start|stop|restart|ls|monitor]
   $(basename $0) [ -h | --help ]
 
 Basic AMP swarm operations.
@@ -98,6 +98,7 @@ Commands:
   restart      Restart services (options: --min); same as stop, pull, start
   stop         Remove services
   ls           List running services
+  monitor      Continually update running services list with current status
 
 USAGE
   exit 1
@@ -135,6 +136,9 @@ main() {
       ls)
         ls
       ;;
+      monitor)
+        monitor "${@:2}"
+      ;;
       -h)
         usage
       ;;
@@ -197,6 +201,11 @@ ls() {
   docker service ls --filter "label=amp.swarm=$ROLE"
 }
 
+monitor() {
+  interval=${1:-5}
+  clear; while true; do tput cup 0 0; docker service ls; sleep $interval; done
+}
+
 ampagent() {
   docker service create --network amp-swarm --name amp-agent \
     --mode global \