Java Continuous Delivery by Docker

Continuous delivery demo that aims to use following principles:

• immutable environments
• short lived environments
• built and destroyed with each jenkins run

Continuous delivery with Jenkins (on-prem)

E2E with Docker Compose and Maven

Swagger

Stack

Technology	Version
Java	8
Wildfly	13.0.0
MySQL	8.0
Maven	3.5
Docker	17.11.0-ce
Docker Compose	1.17.1

Continuous delivery with Jenkins

• Start jenkins
  • $ ./startJenkins.sh
  • login to jenkins (password can be seen in jenkins log when it starts)
  • select 'Install selected plugins'
• Create jenkins plan
  • edit ./jenkins/data
  • $ cd jenkins && ./createJob.sh localhost 8080 continuous-delivery config.xml
• Go to jenkins job, build will start in under 2 minutes. Alternatively the build can be started manually -> 'Build Now'

Continuous Delivery life-cycle

• Source code changes pushed to git
• Jenkins detects changes and starts job
  • Build war/jar artifact
  • Start stack (includes image build for java web app)
  • Apply db schema (flywaydb.org)
  • Execute integration tests
  • Stop stack (includes destroy of web and database containers)

E2E with docker compose and Maven

• Step-by-step

    $ TAG=dev docker-compose up -d ackris-db ackris-web                     # start web and database containers
    $ mvn clean compile flyway:migrate                                      # deploy database schema
    $ mvn clean verify -Dmaven.test.failure.ignore=false -Dtest.port=8070   # run integration tests

Use -Dmaven.buildNumber.doCheck=false if project contains local changes

Demo: http://localhost:8070/bookstore

Swagger

• $ docker-compose up -d swaggerui

• Swagger UI @ http://localhost:81