Deploying Applications for Free on Heroku

5 min readJan 24, 2022

Here am going to show you a proper and easy way to deploy Node.js, Ruby, Java, Python, Clojure, Scala, Go, PHP, and other applications on HEROKU with great ease.

What is Heroku?

Heroku is a cloud platform that lets developers build, deliver, monitor, and scale apps, bypassing all those infrastructure headaches.

Heroku is a Cloud Service platform that allows us to deploy, run and manage Node.js, Ruby, Java, Python, Clojure, Scala, Go, PHP, and other applications.

All Heroku applications run in a collection of lightweight Linux containers called dynos. Dynos are fundamental pieces of the Heroku architecture model that provide computing processing on the platform.

How to deploy on Heroku?

You all need to follow these 3 steps to deploy your app

Prerequisites

You must have a Heroku account — click here
Must download and install the Heroku CLI ( if you want to deploy through Heroku CLI )

Step 1 : Create an app on Heroku

Go to your dashboard — click here
Click on create a new app

Enter App name and select region

Create a pipeline if required ( Not Mandatory )

Finally, click on Create App

Step 2 : Add code to Heroku

You can add code in the following ways

Connect to Github and select the repository

Can use Heroku Git (check prerequisites)

If you haven’t already, log in to your Heroku account and follow the prompts to create a new SSH public key.

$ heroku login

Create a new Git repository and Initialize a git repository in a new or existing directory

$ cd my-project/
$ git init
$ heroku git:remote -a heroku-app-te

Commit your code to the repository and deploy it to Heroku using Git.

$ git add .
$ git commit -am "make it better"
$ git push heroku master

For existing repositories, simply add the heroku remote

$ heroku git:remote -a heroku-app-te

Step 3 : Deploying the code

When you connect the repository via GitHub

Select the GitHub branch which you want to deploy. This will deploy the current state of the branch you specify. Learn more.

Then, click on Deploy Branch

Then the deployment will start

You can also see the logs here

After completing all the processes the app will be deployed Successfully

Step 4 : Enable automatic deploys from GitHub

Choose the branch and click on Enable Automatic Deploys

Step 5 : Adding Config Vars on Heroku

Config vars change the way your app behaves. In addition to creating your own, some add-ons come with their own.

To add

Go to settings
Click on Reveal Config Vars

Then provide a KEY and a VALUE and click on add

Note: After adding all the Config Variables you need to redeploy the app to see the effective changes ( if the APP is not deployed )

Step 6 : Other Configurations

Can add SSL Certificates

Can add Buildpacks

Can add Domain

Have options of Transfer Ownership

Have options of Maintenance Mode

Can also add an Add-ons link to ClearDB MySQL, Airbrake Error Monitoring, and many more.

Can also change Dyno Type

Conclusion

By following the step by step you can deploy, run and manage applications on Heroku very easily.

Deploying Applications for Free on Heroku

What is Heroku?

How to deploy on Heroku?

Conclusion

Sources

Written by Akash Mohapatra