Add wait method for Docker builds

By default, if a docker build job triggers and
there is another one running at the same time,
it will abort the job.
This adds a wait method with a timeout to avoid that.

Change-Id: Ica86885c60ce4137c85474ec4b7441ac5bab600c
Signed-off-by: jose.lausuch <jose.lausuch@ericsson.com>

1 files changed, 10 insertions, 8 deletions

diff --git a/jjb/releng/opnfv-docker.sh b/jjb/releng/opnfv-docker.sh
index 9bd711bc6..5d73a9d70 100644
--- a/jjb/releng/opnfv-docker.sh
+++ b/jjb/releng/opnfv-docker.sh
@@ -17,14 +17,16 @@ echo "Starting opnfv-docker for $DOCKER_REPO_NAME ..."
 echo "--------------------------------------------------------"
 echo
 
-
-if [[ -n $(ps -ef|grep 'docker build'|grep -v grep) ]]; then
-    echo "There is already another build process in progress:"
-    echo $(ps -ef|grep 'docker build'|grep -v grep)
-    # Abort this job since it will collide and might mess up the current one.
-    echo "Aborting..."
-    exit 1
-fi
+count=30 # docker build jobs might take up to ~30 min
+while [[ -n `ps -ef|grep 'docker build'|grep -v grep` ]]; do
+    echo "Build in progress. Waiting..."
+    sleep 60
+    count=$(( $count - 1 ))
+    if [ $count -eq 0 ]; then
+        echo "Timeout. Aborting..."
+        exit 1
+    fi
+done
 
 # Remove previous running containers if exist
 if [[ -n "$(docker ps -a | grep $DOCKER_REPO_NAME)" ]]; then