Tag docker images with the git commit id

Tag docker images with the git commit id using dockerhub post push hooks

Closes #3

Author: jrcast

hooks/post_push

@@ -0,0 +1,5 @@
+#!/bin/bash
+# Tag and push image built with the git commit id
+TAG="${SOURCE_COMMIT:0:7}"
+docker tag "$IMAGE_NAME" "$DOCKER_REPO":"$TAG"
+docker push "$DOCKER_REPO":"$TAG"