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Jenkins BlueOcean Setup with Docker

This guide provides steps to set up Jenkins BlueOcean using Docker, with minimal and straightforward instructions.

Prerequisites

  • Docker installed on your system.
  • Basic understanding of Docker commands.

Steps

1. Build or Pull the Jenkins BlueOcean Docker Image

Option A: Build the image locally

docker build -t myjenkins-blueocean:2.489-jdk17 .

Option B: Pull a pre-built image

docker pull jenkins/jenkins:2.489-jdk17
docker tag jenkins/jenkins:2.489-jdk17 myjenkins-blueocean:2.489-jdk17

2. Create a Docker Network for Jenkins

docker network create jenkins

3. Run the Jenkins Container

For MacOS/Linux

docker run --name jenkins-blueocean --restart=on-failure --detach \
  --network jenkins --env DOCKER_HOST=tcp://docker:2376 \
  --env DOCKER_CERT_PATH=/certs/client --env DOCKER_TLS_VERIFY=1 \
  --publish 8080:8080 --publish 50000:50000 \
  --volume jenkins-data:/var/jenkins_home \
  --volume jenkins-docker-certs:/certs/client:ro \
  myjenkins-blueocean:2.489-jdk17

For Windows

Command with Multiple Lines for PowerShell

docker run `
  --name jenkins-blueocean `
  --restart=on-failure `
  --detach `
  --network jenkins `
  --env DOCKER_HOST=tcp://docker:2376 `
  --env DOCKER_CERT_PATH=/certs/client `
  --env DOCKER_TLS_VERIFY=1 `
  --publish 8080:8080 `
  --publish 50000:50000 `
  --volume jenkins-data:/var/jenkins_home `
  --volume jenkins-docker-certs:/certs/client:ro `
  myjenkins-blueocean:2.489-jdk17

Command with Single Lines for PowerShell

docker run --name jenkins-blueocean --restart=on-failure --detach --network jenkins --env DOCKER_HOST=tcp://docker:2376 --env DOCKER_CERT_PATH=/certs/client --env DOCKER_TLS_VERIFY=1 --publish 8080:8080 --publish 50000:50000 --volume jenkins-data:/var/jenkins_home --volume jenkins-docker-certs:/certs/client:ro myjenkins-blueocean:2.489-jdk17

4. Retrieve the Initial Admin Password

docker exec jenkins-blueocean cat /var/jenkins_home/secrets/initialAdminPassword

5. Access Jenkins

Open your browser and navigate to: http://localhost:8080
Use the retrieved admin password to unlock Jenkins.

6. Optional: Forward Traffic from Jenkins to Docker Desktop

Run an Alpine/socat container to forward traffic to Docker Desktop:

docker run -d --restart=always -p 127.0.0.1:2376:2375 --network jenkins \
  -v /var/run/docker.sock:/var/run/docker.sock alpine/socat \
  tcp-listen:2375,fork,reuseaddr unix-connect:/var/run/docker.sock

Verify the container IP:

docker inspect <container_id> | grep IPAddress

7. Use Pre-Built Python Agent

Pull and use the pre-built Python agent for Jenkins:

docker pull devopsjourney1/myjenkinsagents:python

References