add circleci files

.docker/hooks/build

@@ -0,0 +1,2 @@
+#!/bin/bash
+docker build --build-arg TAG=$SOURCE_BRANCH -t $IMAGE_NAME .

.docker/hooks/post_push

@@ -0,0 +1,7 @@
+#!/bin/bash
+for url in $(echo $BUILD_TRIGGERS | sed "s/,/ /g"); do
+  curl -sL -X POST -H "Content-Type: application/json" \
+    -u "$ACCESS_TOKEN" \
+    --data "{\"tag_name\": \"$SOURCE_BRANCH\", \"target_commitish\": \"master\", \"name\": \"Netdisco $SOURCE_BRANCH\"}" \
+    $url
+done