Create image tag

Author: AndrewJo

.circleci/config.yml

@@ -12,7 +12,7 @@ jobs:
           command: echo "$DOCKER_PASS" | docker login -u $DOCKER_USER --password-stdin
       - run:
           name: Build Docker image
-          command: docker build -t verdigristech/ci-node .
+          command: docker build -t verdigristech/ci-node:${CIRCLE_TAG:1} .
       - run:
           name: Deploy container
           command: docker push verdigristech/ci-node