Deploy Spring Boot 2  Kotlin  Java 11 on Heroku.

Heroku concepts is extract from Heroku is a cloud platform that lets companies build, deliver, Monitor and scale apps, we are the fastest way to go from idea to URL, by passing all those infrastructure headches.

we will create a free account from deploy your apps. in next link, this way, 

Next to will be do login. and will have the next page.

Click right corner -> New -> Create new app. set name the app. This way.

Click on button Create app. and will have the next page.

In this case I used Heroku Cli, check the link for install Heroku Cli. and the next just follow steps, Heroku provide.

$ heroku login -i

Eg:

Create a new Git repository

Initialize a git repository in a new or existing directory

$ cd my-project/
$ git init
$ heroku git:remote -a backend-eg

Deploy your application

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

Succes install.

Public URL, for access my webservice.

https://backend-eg.herokuapp.com/services/hello
https://backend-eg.herokuapp.com/services/hello/henry

Source code.

Here on GitHub.