A promotion occurs when a build that was previously deployed in staging is promoted to the production environment.
Qualified buildsOnly builds that have been previously run in staging can be promoted to production.
To promote a build to production, go to the specific build and select “Deploy to Production” from the Actions menu.
Once the app is running you can see the runtime logs by clicking on the “See deployment logs” link.
Node.js + Express
For the Node.js + Express project template,
node src/server.js is called to start the app. It is required that your HTTP server uses port 3000 to serve content.