Handle multiple tags in hooks.

docker/hooks/build

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -v
+
 # Docker Hub's default build command seems to not handle .dockerignore correctly. Doing a simple build command
 # ourselves works fine.
 
@@ -8,3 +10,8 @@
 cd ..
 
 docker build -f $DOCKERFILE_PATH -t $IMAGE_NAME .
+
+IFS=',' read -ra TAGS <<< "$DOCKER_TAG"
+for tag in ${TAGS[@]; do
+  docker tag "$IMAGE_NAME" "${DOCKER_REPO}:${tag}"
+done

docker/hooks/post_build

@@ -1,15 +1,21 @@
 #!/bin/bash
 
+set -v
+
 # This hook is called with the current directory set to the same as the Dockerfile, so we go back
 # to top level.
 cd ..
 
 # We always build an image containing nginx and zipkin-lens in addition to the default image of zipkin-server
 echo Building zipkin-ui
-docker build -f $DOCKERFILE_PATH -t openzipkin/zipkin-ui:$DOCKER_TAG --target zipkin-ui .
+IFS=',' read -ra TAGS <<< "$DOCKER_TAG"
+docker build -f "$DOCKERFILE_PATH" -t "anuraaga/docker-hub-test-2:${TAGS[0]}" --target zipkin-ui .
+for tag in ${TAGS[@]:1}; do
+  docker tag "anuraaga/docker-hub-test-2:${TAGS[0]}" "anuraaga/docker-hub-test-2:$tag"
+done
 
 if [[ "$DOCKER_TAG" == "master" ]]; then
   # We rebuild the builder image on master push, not on release pushes.
   echo Building zipkin-builder
-  docker build -f $DOCKERFILE_PATH -t openzipkin/zipkin-builder --target zipkin-builder .
+  docker build -f "$DOCKERFILE_PATH" -t anuraaga/docker-hub-test-3 --target zipkin-builder .
 fi

docker/hooks/post_push

@@ -1,15 +1,20 @@
 #!/bin/bash
 
-if [[ "$DOCKER_REPO" == "index.docker.io/openzipkin/zipkin" ]]; then
+set -v
+
+if [[ "$DOCKER_REPO" == "index.docker.io/anuraaga/docker-hub-test" ]]; then
   # We always push an image containing nginx and zipkin-lens in addition to the default image of zipkin-server
   echo Pushing zipkin-ui
-  docker push openzipkin/zipkin-ui:$DOCKER_TAG
+  IFS=',' read -ra TAGS <<< "$DOCKER_TAG"
+  for tag in ${TAGS[@]}; do
+    docker push "anuraaga/docker-hub-test-2:$tag"
+  done
 
   if [[ "$DOCKER_TAG" == "master" ]]; then
     # We repush the builder image on master push, not on release pushes.
     echo Pushing zipkin-builder
     # zipkin-builder is just a cache of maven / npm dependencies, there's no need to version it
     # with docker tags.
-    docker push openzipkin/zipkin-builder
+    docker push anuraaga/docker-hub-test-3
   fi
 fi