tcwg-cleanup-stale-containers.sh: Remove only containers started by Jenkins.

Implements TCWG-1404.

Containers started by Jenkins jobs have names starting with a number,
we want to cleanup only those. This behaviour is hardcoded by this
patch, but controlled by a flag we can control later if needed.

Change-Id: Idbf8eb6cfc44ccd7cdaad08019522f670046573e

1 files changed, 19 insertions, 1 deletions

diff --git a/tcwg-cleanup-stale-containers.sh b/tcwg-cleanup-stale-containers.sh
index ff49529f..418823e0 100755
--- a/tcwg-cleanup-stale-containers.sh
+++ b/tcwg-cleanup-stale-containers.sh
@@ -54,6 +54,7 @@ do_cleanup_containers ()
     local docker_ps_opts="$2"
     local action="$3"
     local cleanup_containers=true
+    local only_jenkins_containers=true
 
     if [ "$hours" -lt "0" ]; then
 	hours="$((0-$hours))"
@@ -72,7 +73,22 @@ do_cleanup_containers ()
 	container_seconds=$((curdate-container_date))
 
 	if [ "$(($container_seconds/3600))" -gt "$hours" ]; then
-            rm_containers=("${rm_containers[@]}" $container)
+
+	    # Do we want to remove all containers, or only those
+	    # started by Jenkins jobs?
+	    if ${only_jenkins_containers}; then
+		container_name=$(DOCKER inspect --format "{{.Name}}")
+		# Containers started by our Jenkins jobs start with a
+		# number
+		case ${container_name} in
+		    /[0-9]*)
+			;;
+		    *)
+			container=""
+			;;
+		esac
+	    fi
+	    rm_containers=("${rm_containers[@]}" $container)
 	fi
     done
 
@@ -98,6 +114,8 @@ do_cleanup_containers ()
 
 	echo "Containers report after:"
 	$DOCKER ps $docker_ps_opts
+    else
+	echo "Found no container to remove"
     fi
 
     exit $status