Tiven Wang
Wang Tiven April 06, 2017
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What’s Jenkins

Jenkins is a self-contained, open source automation server which can be used to automate all sorts of tasks such as building, testing, and deploying software. Jenkins can be installed through native system packages, Docker, or even run standalone by any machine with the Java Runtime Environment installed.

Combining Jenkins and Docker together can bring improved speed and consistency to your automation tasks, which is why we have installed the Jenkins using Docker.

What’s Docker

Docker is an open-source project that automates the deployment of applications inside software containers, by providing an additional layer of abstraction and automation of operating-system-level virtualization on Linux.*
— Wikipedia

Installing Jenkins with Docker

You should have Docker properly installed on your machine. Check Docker installation guide for details.

First, pull the official jenkins image from Docker repository.

docker pull jenkins

Next, run a container using this image and map data directory from the container to the host; e.g in the example below /var/jenkins_home from the container is mapped to jenkins/ directory from the current path on the host. Jenkins 8080 port is also exposed to the host as 49001.

docker run -d -p 49001:8080 -v $PWD/jenkins:/var/jenkins_home:z -t jenkins

Addtionally, you can configure nginx as a reverse proxy to your Jenkins instance, e.g.

upstream app {
    server 127.0.0.1:49001;
}
server {
    listen 80;
    server_name jenkins.your-domain.com;

    location / {
        proxy_pass http://app;
    }
}

Setting Up Jenkins 2.0

Now that we are running an instance of Jenkins at http://localhost:49001/ , access the URL then we need setup up Admin Password , User Details and Plugins initially.

Image:Setting Up Jenkins 2.0

Configuring Jenkins Server

Install Maven

Manually:

docker exec -it myjenkins /bin/bash

curl -O http://download.java.net/java/jdk8u152/archive/b02/binaries/jdk-8u152-ea-bin-b02-linux-x64-27_mar_2017.tar.gz

curl -O http://mirror.synyx.de/apache/maven/maven-3/3.3.9/binaries/apache-maven-3.3.9-bin.tar.gz

tar -zxvf apache-maven-3.3.9-bin.tar.gz

Configure the path of Maven and JDK in Jenkins Global Tool Configure page.

Automatically:

Install from Apache(or Oracle):

References

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