Add Dockerfile for phpBB 3.2

3.2-apache/hooks/post_push

@@ -0,0 +1,13 @@
+#!/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 each additional tag
+for tag in {3,3.2,3-apache,3.2-apache,apache,latest}; do
+    docker tag $IMAGE_NAME ${repoName}:${tag}
+    docker push ${repoName}:${tag}
+done