Repo to accompany my October 2016 talk at the Salt Lake City Java User's Group.
Slides: https://slides.com/ryanwalls/docker-for-java-developers-from-0-to-dockerized
- Install Docker for Mac (https://docs.docker.com/engine/installation/mac/), Windows (https://docs.docker.com/engine/installation/windows/) or Linux (https://docs.docker.com/engine/installation/linux/).
Look at Dockerfile.gradle and Dockerfile.maven for examples.
Build:
docker build -t "gradletest" -f Dockerfile.gradle .
Run:
docker run -it -p 8080:8080 gradletest
Build:
docker build -t "maventest" -f Dockerfile.maven .
Run:
docker run -it -p 8080:8080 maventest
When running your build in CI/CD environment, look at https://hub.docker.com/r/ryanwalls/pom-version-parser for extracting your version number. (Always tag your docker images!)
- Create barebones server with some form of linux
- Open port 80 (you can can do ssl termination with nginx later), I'm running in AWS so I had to alter my security group.
- Install Docker
curl -fsSL https://get.docker.com/ | sh
If you want to run without sudo, add your user to the docker group
sudo usermod -aG docker ubuntu
- Create a directory that you'll use to backup your Jenkins config e.g.
mkdir /home/ubuntu/jenkins
And make sure the jenkins user and group owns it (On ubuntu box I spun up, ubuntu user was already 1000:1000)
sudo chown -R 1000:1000 /home/ubuntu/jenkins
- (This could be improved, for demo only!) Let jenkins user access
docker.sock
sudo chmod 777 /var/run/docker.sock
- Run jenkins with docker
docker run -d --name jenkins -p 80:8080 --restart unless-stopped \
-v /var/run/docker.sock:/var/run/docker.sock \
-v /home/ubuntu/jenkins:/var/jenkins_home \
ryanwalls/jenkins-with-docker:2.19.1-docker1.12.2
Copy password that is printed toward end of startup
- Navigate to http://
- Go through setup after authenticating with password copied earlier
- Create a new freestyle project