/heroku-commands

Heroku commands

💻 HEROKU COMMANDS

1. STOP A RUNNING DYNO

  • Maintenance mode doesn not shut your dyno , it only stops traffic acces to you dyno.

    heroku ps:stop <dynotype-web/worker> -a <app_name>

2. SCALE YOUR DYNO

  • You could mention worker dyno or web dyno type or both when using this command. Here i used both.

    heroku ps:scale web=0 worker=1 -a <app_name>

3. SSH INTO YOUR RUNNING DYNO.

`heroku ps:exec --dyno=web.2 -a <app_name>`

  • Use the --status flag to check the status of the Exec connection.

    heroku ps:exec --status <app_name>

4. PORT FORWARDING

`heroku ps:forward 9090 -a <app_name>`

5. Remote debugging

  • For Node.js, you must add the --inspect=9090 to the node command that starts your app. For example, your Procfile might look like this:

    web: node --inspect=9090 index.js

  • After you change your Procfile and redeploy your app, you can start port forwarding with the Heroku Exec client:

    heroku ps:forward 9090 -a <app_name>

6. INSTALL A BUILDPACK FROM THE TERMINAL

  • Here we're installing the puppeteer buildpack which I tested using Nodejs.

    heroku buildpacks:add jontewks/puppeteer -a <app_name>