Integrating TravisCI With Rails and Heroku

Tue, 07 Mar 2017 00:00:00 +0000

Adding TravisCI to your application's deployment flow will enable you to spot any build fails or test fails during deployment without affecting your production environment.

In this post I go over on how to integrate TravisCI with a Rails 4 application that uses Postgresql, Rspec, and is later deployed to Heroku if the Travis build is successful.

Setting up TravisCI

Assuming you already have an account in TravisCI, look for the Github repository of the Rails application and enable it. Then we will want to add a .travis.yml file to the application's root directory with the following contents:

language: Ruby
rvm:
  - 2.3.0

The configuration above tells TravisCI that our application will use Ruby 2.3.0. Once you commit and push the change above to the master branch, Travis will begin creating the build, which might take a few minutes.

Configure Postgresql

Seems our Rails application uses Postgresql, we need to configure TravisCI to run our build with a Postgresql database. To do this we will add the following configuration to .travis.yml:

services:
  - postgresql

Then we will add another configuration that will make Travis create a Postgresql database with username postgres and blank password for the build:

before_script:
  - psql -c 'create database travis_ci_test;' -U postgres

travisci on Andrés Álvarez

Integrating TravisCI With Rails and Heroku

Setting up TravisCI

Configure Postgresql