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In the world of fast changing technologies and business requirements there is no way to stay with old-school approaches to develop software. Common, leave manual interaction behind, let machine do what it's best capable for and spend your time to solve real problems. During this talk I'm going to demonstrate how to build a sophisticated continuous development pipeline for Java based project to cover things like build, test, code quality, deploy and delivery using Gradle, Jenkins, SonarQube, Docker and Ansible. As an outcome of this presentation there will be an open source project with source code.
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Continuous Development
Pipeline
● SA at EPAM Systems
● primary skill is Java
● hands-on-coding with Groovy, Ruby
● trying to learn some Erlang/Elixir
● passionate about agile, clean code and devops
Izzet Mustafayev@EPAM Systems@webdizz webdizz izzetmustafaievhttp://webdizz.name
Agenda● Introduction
● Step-by-step Implementation
■ Gradle
■ SonarQube
■ Jenkins
■ Ansible
● References
● Summary
● Q&A
Introduction
Continuous Integration
Principles
#1 Each change auto. built and deployed
#2 Test on closed to prod environment
Principles
#1 Each change auto. built and deployed
#2 Test on closed to prod environment
#1 Each change auto. built and deployed
#3 Integrate as frequently as possible
Principles
#2 Test on closed to prod environment
#1 Each change auto. built and deployed
#3 Integrate as frequently as possible
Principles
#4 The highest priority to fix failed build
Benefits● Each change guarantees working code
● Each update should guarantee working
code ;)
● There is no delay for epic merge
● Less bugs - depends on your tests
efficiency*
● Allows to have code ready to go live
Challenges● Need to build infrastructure
● Need to build team culture
● Need to support/enhance infrastructure
● Overhead with writing a lot of different
kind of tests
Continuous Delivery
Principles
#1 Every commit can result in a release
Principles
#1 Every commit can result in a release
#2 Automated tests are essential
Principles
#1 Every commit can result in a release
#2 Automated tests are essential
#3 Automate everything!
Principles
#1 Every commit can result in a release
#2 Automated tests are essential
#3 Automate everything!
#4 Done means released
Benefits● Speed of delivery of business idea to
customer
● Easy going live deployment
● Less time spent on delivery - more profit
● More motivation to do more as you can
see what you can change/improve
Challenges● Big effort to implement changes for:
○ database increment/rollback
○ infrastructure rollout/rollback
○ decrease down time …
● Need to get customers to buy in
● Security policies
Step-by-step Implementation
Continuous Development?
Gradle
2.2.1
Gradle- General purpose build system
Gradle- General purpose build system
- Comes with a rich DSL based on Groovy
Gradle- General purpose build system
- Comes with a rich DSL based on Groovy
- Follows ”build-by-convention” principles
Gradle- General purpose build system
- Comes with a rich DSL based on Groovy
- Follows ”build-by-convention” principles
- Built-in plug-ins for JVM languages, etc
Gradle- General purpose build system
- Comes with a rich DSL based on Groovy
- Follows ”build-by-convention” principles
- Built-in plug-ins for JVM languages, etc
- Declarative builds
Demo Time
CodeQuality
Ad-hoc, fast feedback
Ad-hoc, fast feedback
Over time
SonarQube- Measures code quality from day #0
SonarQube- Measures code quality from day #0
- 7 axes of code quality
SonarQube- Measures code quality from day #0
- 7 axes of code quality
- Helps to manage Technical Dept
SonarQube- Measures code quality from day #0
- 7 axes of code quality
- Helps to manage Technical Dept
- Works not only for Java
SonarQube- Measures code quality from day #0
- 7 axes of code quality
- Helps to manage Technical Dept
- Works not only for Java
- Good for dev, qa, archs & manager
Demo Time
Jenkins
Jenkins- Distributed builds
Jenkins- Distributed builds
- Plugin Support
Jenkins- Distributed builds
- Plugin Support
- Easy installation, configuration
Jenkins- Distributed builds
- Plugin Support
- Easy installation, configuration
- Strong community and eco-system
Notifications
Email sucks
Who cares?
During a day
End of day
Demo Time
Ansible
Ansible- Agentless
Ansible- Agentless
- SSH as a protocol, requires only Python
Ansible- Agentless
- SSH as a protocol, requires only Python
- YAML based configuration
Ansible- Agentless
- SSH as a protocol, requires only Python
- YAML based configuration
- Declarative and Decentralized
Ansible- Agentless
- SSH as a protocol, requires only Python
- YAML based configuration
- Declarative and Decentralized
- Built-in security and encryption
Demo Time
Summary
Summary ● Culture is quite important
Summary ● Culture is quite important
● Automation is a thing
Summary ● Culture is quite important
● Automation is a thing
● Automated Testing is even more thing
Summary ● Culture is quite important
● Automation is a thing
● Automated Testing is even more thing
● Continuous process
References
●
●
● http://www.gradle.org/books
● https://github.com/Netflix/gradle-template
● http://www.ansible.com/
● http://www.sonarqube.org/
● http://jenkins-ci.org/
● https://github.com/webdizz/bootiful-apps/
● https://github.com/webdizz/gradle-template
● https://github.com/eliogrin/CISEN/
References
Q&A
Izzet Mustafayev@EPAM Systems@webdizz webdizz izzetmustafaievhttp://webdizz.name
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