Example Dockerfile For Jenkins

If you are interested in how the image is configured be sure to look at the liatrioalpine-jenkins repositorys Dockerfile for an overview. Write a example dockerfile with 2 CMD 2 ENTRYPOINT and 1 CMD1ENTRYPOINT and write down a behaviour of it.

Github Stakater Dockerfile Jenkins Dockerfile For Jenkins

Docker run jenkins --version.

Example dockerfile for jenkins. Jenkins over Docker example This project contains various files such as Dockerfile or related files which forms a practical Jenkins master-slave configuration over Docker. You also can define jenkins arguments as JENKINS_OPTS. For this example use docker-test.

An example of how youd extend the upstream image looks like the below example. Jenkins by default runs on port 8080 so we have used 8091 port to enable access to the container from outside world. For example tcp10128034243 You can use the Test connection to test if Jenkins is able to connect to the Docker host.

Node checkout scm def testImage dockerbuild test-image dockerfilestest testImageinside sh make test. Dockerhub menu to Create Repository. Write an example dockerfile with 2 CMD 2 ENTRYPOINT and 1 CMD1 ENTRYPOINT and write down behavior of it.

You also can define jenkins arguments as JENKINS_OPTS. If your code repository is in GitHub a much better approach is to set up webhooks. We can scan the image and display the results with code like the following.

It will explain aboutHow to create jenkins image with your required os Java Tomcat and Jenkins versions. Create a n e w folder that will store all the files of Jenkins. The example here H5 will poll the Git repository every five minutes.

Creating a dockerhub repository. For example JFrog XRay will perform this task and has bindings to Jenkins Pipeline. To build Jenkins master node cd master bash dockerbuildsh An image knjnamejenkins-master will be registered.

Lets test our new image and if we can tail the log file. ENV JENKINS_OPTS--handlerCountMax300 --logfilevarlogjenkinsjenkinslog ENV JENKINS_OPTS--handlerCountMax300 --logfilevarlogjenkinsjenkinslog Now build your image one more time. For example a repository with the file buildDockerfilebuild expecting a build argument version.

BuildInfonumber xrayResults xrayScanBuildscanConfig print xrayResults as String. FROM jenkinsjenkinslts ARG GOSU_VERSION110 switch to root let the entrypoint drop back to jenkins USER root install debian packages gosu and docker RUN apt-get update DEBIAN_FRONTENDnoninteractive apt-get install -y --no-install-recommends vim wget. Arguments you pass to docker running the jenkins image are passed to jenkins launcher so you can run for example.

So you dont need external Servers for instance. Scan image for vulnerabilities scanConfig buildName. Docker run -p 80808080 -v varrundockersockvarrundockersock liatriojenkins-alpine.

Put a name for your repository. StageRun Docker container on Jenkins Agent steps sh docker run -d -p 80038080 nikhilnidhisamplewebapp stageRun Docker container on remote hosts steps sh docker -H sshemail protected run -d -p 80038080 nikhilnidhisamplewebapp Configure a Jenkins Pipeline project. You will need 3 files.

The Dockerfile installs Ubuntu 2004 LTS as base image and add the required packages to run jenkins but also Development and Testing tools to use inside the Container to run Unit Testing on your code for example. Logged in dockerhub click on Create Create Repository. In your Dockerfile edit the JENKINS_OPTS line to look like this.

You need to configure Docker in Nodes section of the Jenkins Go to Manage Jenkins - Manage Nodes and Clouds - Configure Clouds- Add New Cloud. The docker command is executed and the jenkins has been successful in finding the command. Note that I am polling for changes in this example because I am being lazy.

Agent Equivalent to docker build -f Dockerfilebuild --build-arg version102 build dockerfile filename Dockerfilebuild dir build label my-defined-label additionalBuildArgs --build-arg version102 args. This can be overridden by providing a directory path containing a Dockerfile as the second argument of the build method for example. For the pipeline definition choose Pipeline script from SCM and tell Jenkins how to find your repository.

This will dump Jenkins version just like when you run jenkins as an executable war. This will dump Jenkins version just like when you run jenkins as an executable war. Create a pipeline job in Jenkins.

Mkdir rootDesktopmyjenkins Run the container with Jenkins image docker run -dit --name sjenkins -p 80918080 -v rootDesktopmyjenkinsrootjenkins myjenkinslatest. Docker build -t myjenkins. List out all INSTRUCTION statement of dockerfile and give one line explanation.

The build method builds the Dockerfile in the current directory by default. Docker run jenkins --version. Type unixvarrundockersock for Docker Host URI and Click Enabled Then save.

Create a dockerhub account if you dont have yet. To spin up the Alpine-Jenkins container and give it access to Docker use docker run. Arguments you pass to docker running the jenkins image are passed to jenkins launcher so you can run for example.

Now from Docker Agent Template dropdown click th e Add Docker template and fill in the details based on the explanation and the image given below and save the configuration.

Running Docker Inside And Outside Of A Jenkins Container Along With Docker Compose A Tiny Pipeline As Code Demonstration By Sreeprakash Neelakantan Medium