🐛 fixing push to docker hub (ITISFoundation#2469)

Author: GitHK

Makefile

@@ -309,8 +309,6 @@ push-latest: tag-latest
 	@export DOCKER_IMAGE_TAG=latest; \
 	$(MAKE) push-version
 
-# NOTE: docker-compose only pushes images with a 'build' section.
-# TODO: change to docker-compose push when make config-version available
 push-version: tag-version
 	# pushing '${DOCKER_REGISTRY}/{service}:${DOCKER_IMAGE_TAG}'
 	@docker-compose --file services/docker-compose-build.yml --file services/docker-compose-deploy.yml push

ci/deploy/dockerhub-deploy.bash

@@ -29,7 +29,9 @@ make info-images
 
 # re-tag build
 DOCKER_IMAGE_TAG="$TAG_PREFIX-latest"
+BUILD_TARGET="undefined" # this gets overwritten but is required when merging yaml files
 export DOCKER_IMAGE_TAG
+export BUILD_TARGET
 log_info "pushing images ${DOCKER_IMAGE_TAG} to ${DOCKER_REGISTRY}"
 make push-version