05. Week 5 CI DC With Travis And Heroku

CI/CD with Travis CI and Heroku

What is Travis CI

Travis CI is a hosted, distributed continuous integration service used to build and test software projects hosted at GitHub.

In this course we will use it to build our projects follow CI/CD pattern

What is Heroku

Heroku is a cloud platform as a service supporting several programming languages. Heroku, one of the first cloud platforms, has been in development since June 2007, when it supported only the Ruby programming language, but now supports Java, Node.js, Scala, Clojure, Python, PHP, and Go

In this course, we will use it to deploy our projects follow CI/CD pattern.

Installation

Install Travis CI

Visit Travis CI's documents for more detail.

Firstly, you need to understand how to build a public project hosted on Github using Travis CI.

For go project

1. Let create a .travis.yml

language: go
go: 
 - 1.12.3

script:
 - go test -v ./...

2. Follow the official guide to build the code

Install Heroku

Visit DevCenter of Heroku for more detail

Firstly, easy way to install Heroku CLI tool is using Nodejs on developer mode.

npm install -g heroku

Running Locally

$ git clone https://github.com/tpphu/golang-training-cicd.git
$ cd golang-training-cicd
$ go build -o bin/golang-training-cicd -v .
$ heroku local

Your app should now be running on localhost:5000.

Using Travis to deploy to Heroku

Use heroku auth:token for shot-term key, or heroku authorizations:create for long-term key.

language: go
go: 
 - 1.12.3

script:
 - go test -v ./...
deploy:
  provider: heroku
  app: tranquil-gorge-15185
  api_key:
    secure: "b63df6f4-cfdd-436e-8b42-213d1b59559b"

Demo

All source code is available here

How to understand demo code

• .travis.yml is the file used by Travis CI to build and deploy
• heroku.yml is the file used by Heroku to describle the project
• Procfile is the file used by Heroku to start the project
• Dockerfile is the file used by Heroku to build golang project on the Heroku server