Exercise 2.1: Setup Continuous Integration

In this exercise, you will set up a Continuous Integration (CI) workflow using GitHub as a version control system, Travis CI as a build tool, and DockerHub as artifact repository manager. This workflow will execute the unit tests of the source code and build the code. To trigger it, a change of the codebase must be performed.

Setup

Requirements

• GitHub account

  Click here for sign-up instructions.

  To sign up: https://github.com/join

Instructions

1. Create a GitHub repository called: mini-ci-example

2. Add and commit main.go, main_test.go, fib.go, fib_test.go, and go.mod to your repository via drag-and-drop.

3. Active Travis CI for your GitHub repository.

   • Follow instructions on: https://docs.travis-ci.com/user/tutorial/#to-get-started-with-travis-ci

4. Create file .travis.yml in your repository and copy-paste content from the provided .travis.yml file.

   os: linux
   
   language: go
   
   go:
   - 1.13.x
   
   script:   
   # Test the code
   - go test -v ./...
   # Build the code 
   - CGO_ENABLED=0 GOARCH=amd64 go build -o demo

5. Trigger a Travis CI build by a code change, e.g., change "Hello" to "Hi there" in the file ./main.go

6. Watch Travis executing your tests and building the artifact.

   🔍 What is your observation?

• Optional: To add Travis CI status to the README.md, follow instructions on: https://docs.travis-ci.com/user/status-images/

  

  [![Build Status](https://travis-ci.com/YOUR-GITHUB-ACCOUNT/mini-ci-example.svg?branch=main)](https://travis-ci.com/YOUR-GITHUB-ACCOUNT/mini-ci-example)