feat(Makefile): add in new postgres target

this adds in a new target that allows you to run postgres tests with
a single command

Issue: NA

- [ ] It works!
- [ ] Comments provide sufficient explanations for the next contributor
- [ ] Tests cover changes and corner cases
- [ ] Follows Quay syntax patterns and format

Makefile

@@ -47,6 +47,23 @@ test: unit test/registry_tests.py
 	TEST=true PYTHONPATH="." py.test --timeout=3600 --verbose --show-count -x \
 		test/registry_tests.py
 
+PG_PASSWORD := quay
+PG_USER := quay
+PG_HOST := postgresql://$(PG_USER):$(PG_PASSWORD)@localhost/quay
+
+test_postgres : TEST_ENV := SKIP_DB_SCHEMA=true TEST=true \
+	TEST_DATABASE_URI=$(PG_HOST) PYTHONPATH=.
+
+test_postgres:
+	docker rm -f postgres-testrunner-postgres || true
+	docker run --name postgres-testrunner-postgres \
+		-e POSTGRES_PASSWORD=$(PG_PASSWORD) -e POSTGRES_USER=${PG_USER} \
+		-p 5432:5432 -d postgres:9.2
+	until pg_isready -d $(PG_HOST); do sleep 1; echo "Waiting for postgres"; done
+	$(TEST_ENV) alembic upgrade head
+	$(TEST_ENV) py.test --timeout=7200 --verbose --show-count ./ --color=no \
+		--ignore=endpoints/appr/test/ -x
+	docker rm -f postgres-testrunner-postgres || true
 
 WEBPACK := node_modules/.bin/webpack
 $(WEBPACK): package.json