Redirect output of docker commands to /dev/null and use mirrored docker image.

.gitlab-ci.yml

@@ -1,7 +1,7 @@
-image: docker:19.03.13
+image: registry.gitlab.pztrn.name/containers/mirror/docker:19.03.13
 
 services:
-  - docker:19.03.13-dind
+  - registry.gitlab.pztrn.name/containers/mirror/docker:19.03.13-dind
 
 variables:
   DOCKER_HOST: tcp://docker:2375

mirror.sh

@@ -28,14 +28,14 @@ function mirror() {
 	image_hash=$(docker images -a | grep "${image_name}" | grep "${image_version}" | awk {' print $3 '})
 	echo -n "${image_hash} received... "
 
-	docker tag "${image_hash}" "${REGISTRY_TO_MIRROR}/${image}"
+	docker tag "${image_hash}" "${REGISTRY_TO_MIRROR}/${image}" &> /dev/null
 	if [ $? -ne 0 ]; then
 		echo "FAIL"
 		exit
 	fi
 
 	echo -n "pushing... "
-	docker push "${REGISTRY_TO_MIRROR}/${image}"
+	docker push "${REGISTRY_TO_MIRROR}/${image}" &> /dev/null
 	if [ $? -ne 0 ]; then
 		echo "FAIL"
 		exit
@@ -43,7 +43,7 @@ function mirror() {
 
 	echo "OK"
 
-	docker image rm "${image}"
+	docker image rm "${image}" &> /dev/null
 }
 
 # Mirror images.