Guide to connect Heroku and Github via SSH

Working on Ubuntu 18.04 LTS, Mac and Win 10

• Create SSH key in your machine:

$ ssh-keygen -t rsa -b 4096 -C "my@email.com" 

• Check if id_rsa and id_rsa.pub were created:

$ ls -al ~/.ssh

id_rsa.pub is public and it's shared with github and heroku to secure the connection between your machine and the servers.

• Check if ssh-agent is up and running:

$ eval "$(ssh-agent -s)"

• Now register the file, then when we connect with SHH, this file will be used. To register, run:

$ ssh-add ~/.ssh/id_rsa

We get the public key value, now we have to copy to clipboard:

$ cat ~/.ssh/id_rsa.pub

Now, go to GitHub's setting -> SSH Keys -> New SSH key, and paste the public key, then save.

• Check the connection:

$ ssh -v git@github.com

• Set the Heroku public key:

$ heroku keys:add

• Create a new Heroku project, the name must be unique:

$ heroku create unique-names-application

This create a remote branch, then when you run git remote origin, heroku branches would appear. In package.json you must specify the script that initializes the app: "start":"node file-route.js"

Define ports environment variable, Heroku will give a port -> const port = process.env.PORT || 3000

• Push to Heroku:

$ git push heroku master