Add healthcheck.js baseUrl support

Author: Thijs de Vries

src/healthcheck.js

@@ -33,8 +33,8 @@ const exit = (healthy) => process.exit(healthy === true ? 0 : 1)
 
 const check = () => Promise.all([
 	checkMongoDB(config.dbUrl),
-	checkServer(`http://localhost:${ config.port }`),
-	checkApi(`http://localhost:${ config.port }/.well-known/apollo/server-health`),
+	checkServer(`http://localhost:${ config.port }${ config.baseUrl }/`),
+	checkApi(`http://localhost:${ config.port }${ config.baseUrl }/.well-known/apollo/server-health`),
 ])
 
 const handleSuccess = () => {