L2SS-232: Add a Docker tag/push script for local images

Closes L2SS-232

sbin/tag_and_push_docker_image.sh

+#! /usr/bin/env bash -e
+
+# Tag and push which image version?
+DOCKER_TAG=latest
+
+# Change to git tag or git hash if no tag
+VERSION=$(date +"%Y-%M-%d")
+
+SKA_REPO="nexus.engageska-portugal.pt/ska-docker"
+LOFAR_REPO="git.astron.nl:5000/lofar2.0/tango"
+
+# Compile a list of the SKA images
+SKA_IMAGES=$(for i in $(docker images | egrep ${DOCKER_TAG} | egrep ${SKA_REPO} | cut -d' ' -f1); do printf "%s " ${i}; done)
+
+# Compile a list of LOFAR2.0 images
+LOFAR_IMAGES=$(for i in $(docker images | egrep ${DOCKER_TAG} | egrep -v "${SKA_REPO}|${LOFAR_REPO}" | cut -d' ' -f1); do printf "%s " ${i}; done)
+
+function tag_and_push()
+{
+    (
+        docker tag ${1} ${2}
+        docker push ${2}
+    ) &
+}
+
+# Rename the SKA images for the LOFAR2.0 repo
+# and push them to the LOFAR2.0 repo
+for IMAGE in ${SKA_IMAGES}; do
+    PUSH_IMAGE=${IMAGE//${SKA_REPO}/${LOFAR_REPO}}:${VERSION}
+    tag_and_push ${IMAGE} ${PUSH_IMAGE}
+done
+
+# Rename the LOFAR2.0 images for the LOFAR2.0 repo
+# and push them to the LOFAR2.0 repo
+for IMAGE in ${LOFAR_IMAGES}; do
+    PUSH_IMAGES=${LOFAR_REPO}/${IMAGE}:${VERSIN}
+    tag_and_push ${IMAGE} ${PUSH_IMAGE}
+done
+
+wait