Travis CI is a hosted continuous integration service that is integrated with GitHub. It monitors GitHub projects, runs tests, provides feedback, builds artifacts, checks code quality, and can deploy to cloud services. Compared to Jenkins, Travis CI is a commercial service that emphasizes convention over configuration and is easier to use, while Jenkins is open-source and more flexible. Travis CI automatically runs builds when code is pushed to GitHub, using fresh virtual machine environments for each build to provide a clean build environment. It supports over 20 programming languages and deployment to various cloud services.

1. Travis CI
1/17
Artūrs Liepiņš
arturs@liepins.me

2. Agenda
• Introduction
• Demonstration
• Q and A
2/17

3. What is Travis?
• «A hosted continuous integration
service. It is integrated with GitHub»
3/17

4. Jenkins?
• CI server
• Roots: Java, Sun, Hudson
• Flexible & extensible – 100s of plugins
• Lots of uses and workflows
4/17

5. What can Travis do?
• Monitor GitHub projects
• Run tests
• Provide feedback
• Build artifacts
• Check code quality
• Deploy to cloud services
• Whatever you can make it do
5/17

6. Travis VS Jenkins
Travis Jenkins
Commercial Open-source
Service Application
Convention Configuration
Easy to use Flexible
6/17

7. How does it work?
7/17
git add .
git commit
git push
service hook
run builds
fresh environmentsfresh environmentsfresh environmentsfresh environments

8. Features
• Automatic integration with GitHub
o Repository access
o Building pull requests
• First class support for 21 languages
• Pre-installed build & test tools
• Availlable services – databases, message
queues, etc
• Deployment to multiple cloud services
8/17

9. Features
• Encrypt secure environment variables or files
• Parallel builds with different environments
• Clean environment
o Virtual machines reacreated after every build
• CLI client and API for sripting
9/17

10. Supported platforms
• OS: Linux, iOS and Mac
• Android
• C
• C++
• Clojure
• C#
• D
• Erlang
• Go
• Groovy
• Haskell
• Java
• JavaScript (with Node.js)
• Julia
• Objective-C
• Perl
• PHP
• Python
• Ruby
• Rust
• Scala
• Visual Basic
10/17

11. Supported deployment tools
... And many others
11/17

12. Pros
• Easy to configure & use
• Great integration with GitHub and cloud services
• Fast (usually)
• It’s popular
12/17

13. Cons
• No manual builds
• No build pipelines
• Need to rely on their infrastructure
• Less extensible than Jenkins
• Not suitable for high-security projects
• It’s popular
13/17

14. Alternatives:
Cloud
• circleci.com - very similar to Travis, more advanced
testing, Docker support
• appveyor.com - for Windows apps
• ship.io - iOS
• codeship.io - focuses on Continuous Delivery to cloud
services
• drone.io – fully open-source
• solanolabs.com - focuses on test-driven development
• wercker.com - new, innovative project (in beta)
• assembla.com - alternative to Atlassian tools, includes CI
14/17

15. Alternatives:
Self-hosted
• DotCi - Jenkins extension by Groupon
• Custom setup with Jenkins + Docker + GitHub API
• Drone – Open-Source version of drone.io
15/17

16. Let’s see it in real life!
16/17

17. Thank you for your
attention
• Time for questions!
17/17

18. Feedback
 

19. Sponsors of XXIX
DevClub.lv