Added post_push hook

Author: surfkansas

hooks/post_push

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+set -e
+
+# Parse image name for repo name
+tagStart=$(expr index "$IMAGE_NAME" :)
+repoName=${IMAGE_NAME:0:tagStart-1}
+
+# Tag and push image for latest
+docker tag $IMAGE_NAME ${repoName}:latest
+docker push ${repoName}:latest