Try fixing ddeploy template bug

ci-templates/industrial-ci-templates.yml

@@ -42,7 +42,7 @@
     # Run ddeploy
     - ddeploy --yaml ${DDEPLOY_YAML}
     # Get ID of image created by ddeploy
-    - DOCKER_ID=`docker images --format='{{.ID}}' | head -1`
+    - 'DOCKER_ID=$(docker images --format="{{.ID}}" | head -1)'
     # Tag and push
     - docker tag ${DOCKER_ID} ${DOCKER_PUSH_REGISTRY}/${DOCKER_PUSH_NAME}:${DOCKER_PUSH_TAG}
     - docker push ${DOCKER_PUSH_REGISTRY}/${DOCKER_PUSH_NAME}:${DOCKER_PUSH_TAG}