Continuous Integration with Jenkins and Shippable

Svetlana OmelkovaSoftware Engineer

Nevercode(GreenhouseCI)

Installation● Install VirtualBox (5.1)● (https://www.virtualbox.org/wiki/Downloads)● Install Vagrant

(https://www.vagrantup.com/downloads.html)

● Clone (or download) https://github.com/omelkova/ci_workshop.git

cd box

vagrant up

vagrant plugin install vagrant-vbguest

About the speaker● 4 semesters worked as a TA for Software Testing course

● 2 semesters - TA for Software Engineering course

● “Intro to programming with Python”

● Currently working in “Nevercode” (former GreenhouseCI)○ CI service for mobile apps

○ Support Android, iOS, Cordova and Ionic frameworks

Agenda● Continuous integration introduction● Jenkins installation on virtual machine

○ Setup build for POS application○ Setup webhooks to trigger builds○ Setup build status notification

● Shippable installation (automatic builds + notifications)● Compare self-hosted and cloud-hosted solutions

What is Continuous Integration“Continuous Integrations doesn't get rid of bugs, but it does make them dramatically easier to find and remove.”

-Martin Fowler

● CI is a software development practice aimed to prevent integration problems

● Every code change immediately analysed after committing to the VCS

● Bugs can be isolated to a specific code changes and fixed immediately

● Automate your development process as much as possible!!

Jenkins● Continuous integration and build server● Written in Java● Can be used to automate such tasks as build, test,

distribute software● Server based system running in servlet container(e.g

Tomcat, Jetty)● Completely free and open source/ Commercial support● Has tons of plugins, support everything● May be a problem to configure

Continuous build cycleCode

Build

TestReport

Deploy

VirtualBox and VagrantThe build server has been pre-packaged using VirtualBox and Vagrant

VM is based on Debian8-x64 OS and contains:

● GIT● Java 8● Jenkins CI server

Useful commands:

○ vagrant up○ vagrant ssh○ vagrant suspend○ vagrant resume○ vagrant halt○ vagrant destroy

NGROKHelps to create tunnels to localhost

● Good for testing● Do not use for production!!

Webhook● Webhook is a method to augment the behaviour of a web app

with custom callbacks● Callbacks can be managed by any third-party, who may not

be affiliated with the originating web app

git add .git commit

git push webhook trigger build

SHIPPABLE● Is a cloud platform that provides hosted CI, deployment

and testing to GitHub and Bitbucket repositories● Free for open source and one concurrent build● Pay per minion per month

○ Build minions are the virtual containers that run builds○ Allow to run builds in parallel

Cloud-hosted alternatives● Travis CI ● Circle CI● TeamCity from JetBrains

And many others

Comparison between self-hosted and cloud-hosted CISelf-hosted CI Cloud-hosted CI

Application Service

“Free” of charge (need to maintain) Commercial (usually free for open-source)

Highly flexible Easy to use

Install all you need yourself Pre-installed build and test tools

Need to deal with security issues yourself

Need to provide uname/pwd; ssh keys for your repos

Fast (usually) Builds can be queued

Thank you for your attention

In case of any questions:

svetlana.omelkova@gmail.com

svetlana@nevercode.io