The continuous integration process for our Rails backend app starts by opening a GitHub pull request. This triggers a CircleCI build and some Code Climate checks.

The CircleCI build is a workflow that runs the following jobs:

• check for security vulnerabilities with Brakeman
• check code quality with RuboCop
• run RSpec tests in parallel with the knapsack gem, and output test coverage reports with the simplecov gem
• upload test coverage to Code Climate

Code Climate checks the following:

• code quality metrics like code complexity
• test coverage minimum thresholds

The CircleCI jobs and Code Climate checks above have corresponding GitHub status checks.

Once all the mandatory GitHub checks pass and the code+functionality have been reviewed, developers can merge their pull request into our Git master branch. Code is then ready to deploy!

#ContinuousIntegration