Build Heroku apps automatically on every push to Github - github

Question

I want to enable automatic builds on Heroku anytime I push to master branch on GitHub just like Heroku would do whenever I push to a branch that is connected to an app on their platform. Is there any way to achieve this?

Answer 1

We can achieve this feat with GitHub Actions. We can automate builds on Heroku whenever a push is made hence no need to worry about deploying to Heroku via heroku-cli.
At the root of your application, create a .github folder.
Inside of the .github folder, create a workflow folder
lastly, in the workflow folder, create a yaml file. I'll call mine build-heroku-app.yml. So the file structure is going to look like so:
my-awesome-app
- .github
- workflow
- build-heroku-app.yml
In build-heroku-app.yml file
# .github/workflows/build-heroku-app.yml // Just a comment
name: Build App on Heroku
on:
push: // type of event
branches:
- master // name of branch we want to listen to for event
jobs:
heroku-pull-request:
runs-on: ubuntu-latest
env:
HEROKU_APP_NAME: my-awesome-app // name of app on heroku
steps:
- name: Checkout repository
uses: actions/checkout#v3
with:
fetch-depth: 0
ref: ${{ github.ref_name }}
- name: Login to Heroku
uses: akhileshns/heroku-deploy#v3.12.12
with:
heroku_email: ${{ secrets.HEROKU_EMAIL }} // Heroku email address
heroku_api_key: ${{ secrets.HEROKU_API_KEY }} // Heroku API key
heroku_app_name: ${{ env.HEROKU_APP_NAME }} // Declared above
justlogin: true
- name: Add Heroku remote
run: heroku git:remote --app=${{ env.HEROKU_APP_NAME }}
- name: Push to master branch app on Heroku
run: git push heroku ${{ github.ref_name }}:master --force
Visit Github Actions Secrets Documentation to understand how secrets work in Github actions and how to create them.
You can view your Heroku API key by going to the API Key section on your Heroku Account settings page.