Create pre-configured DB containers for testing

test/postgres-container.sh

@@ -0,0 +1,5 @@
+#!/bin/bash
+
+# postgres://postgres:oj-pw@127.0.0.1:5432/openjam
+
+docker run --name openjam --env POSTGRES_PASSWORD=oj-pw --env POSTGRES_DB=openjam --detach -p 5432:5432 postgres:latest