Keep a few examples of Jenkins Pipelines
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README.md

Jenkins Pipelines Examples

Keep a few examples of Jenkins Pipelines. Mostly used for demo and training.

Look in each directory and find the Jenkinsfile with the example. See more details are in the Jenkinsfile comments.

You are more than welcome to contribute, share and ask.

Setup Local Jenkins

These examples assume a simple setup of a single Jenkins master and two agents.

The setup is installed and run in a Vagrant image.

Spin up the Vagrant VM

Run the following in the root of the repository

# Spin up the Vagrant VM
$ vagrant up

# Once finished, ssh into VM
$ vagrant ssh

Start a local Jenkins master

  • Build the custom Jenkins Docker image
# Go into the directory that has the repository files
$ cd /opt/provisioning/

# Build the Jenkins Docker image
$ docker build -t jenkinsx:1 -f jenkins/Dockerfile .
  • Prepare directories and permissions
# Permissions on /var/run/docker.sock
$ sudo chmod 666 /var/run/docker.sock

# Directory for Jenkins home
$ mkdir -p ~/jenkins_home
$ chmod -R 777 ~/jenkins_home
  • Start the Jenkins master
$ docker run -d --name jenkins -p 8080:8080 -p 50000:50000 -v /var/run/docker.sock:/var/run/docker.sock -v ~/jenkins_home:/var/jenkins_home jenkinsx:1
  • Browse to http://192.168.17.17:8080 and complete the initial setup wizard
    • Get initial admin password from docker logs jenkins output
    • Install suggested plugins
    • Install the Docker Slaves Plugin (for dynamic Docker agent provisioning per build)
    • Install the Blue Ocean plugin (recommended)
  • Define two Jenkins agents (slaves)
    • Create two nodes from the Manage Jenkins -> Manage Nodes
    • Call the nodes agent1 and agent2
    • Set remote root directory to /home/jenkins
    • Configure them to Launch method -> Launch agent via Java Web Start
    • Get the secret token for each node (AGENT1_TOKEN and AGENT2_TOKEN)

Start two Jenkins agents (slaves)

Once you have the tokens for the agents, start the two agents

# Start agent 1
$ docker run -d --link jenkins:jenkins-server --name agent1 jenkinsci/jnlp-slave:3.7-1 -url http://jenkins-server:8080 ${AGENT1_TOKEN} agent1

# Start agent 2
$ docker run -d --link jenkins:jenkins-server --name agent2 jenkinsci/jnlp-slave:3.7-1 -url http://jenkins-server:8080 ${AGENT2_TOKEN} agent2

Create Pipeline jobs

You can create a Pipeline type job using any of the provided examples in the different directories