{"id":10419,"date":"2023-09-03T05:02:11","date_gmt":"2023-09-03T05:02:11","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=10419"},"modified":"2025-02-01T23:03:11","modified_gmt":"2025-02-01T23:03:11","slug":"install-jenkins-as-docker-container","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/install-jenkins-as-docker-container\/","title":{"rendered":"Jenkins Tutorials: Install Jenkins as Docker Container"},"content":{"rendered":"\n

In the Previous Post we Learned How to install Jenkins as Servlet on Tomcat server. <\/a><\/p>\n\n\n\n

In this post we will try even simple and easy way to run Jenkins on your machine using docker.<\/p>\n\n\n\n

Like all major servers Jenkins also comes as a light weight container and is being maintained by community aggressively. <\/p>\n\n\n\n

Pre-requisites :
1. Basic docker understanding.
2. Docker should be up and running on the host machine.
If you feel you need refresher for any of the above – try searching it on devopsschool.com<\/a> – we have plenty of content available \ud83d\ude42<\/p>\n\n\n\n

Let’s start, first check docker daemon is running on the machine where you want to install Jenkins as container.<\/p>\n\n\n\n

For me, I’m going to do it on my mac machine locally – steps would be pretty much similar if we want to do it on cloud machine as well.<\/p>\n\n\n\n

Run, <\/p>\n\n\n

docker version<\/code><\/span><\/pre>\n\n\n
It should some like below on screen :<\/p>\n\n\n\n
\"\"
docker version<\/figcaption><\/figure>\n\n\n\n
Run docker command :<\/p>\n\n\n
docker<\/span> run<\/span> -p<\/span> 8080:8080<\/span> -d<\/span> jenkins<\/span><\/code><\/span>Code language:<\/span> CSS<\/span> (<\/span>css<\/span>)<\/span><\/small><\/pre>\n\n\n
Let me explain what we did above , we are asking docker to run Jenkins container on port 8080 for the localhost host machine which will be routing traffic to port 8080 to the Jenkins container and -d tag tells to run this container in detached mode.<\/p>\n\n\n\n
If we don’t have the Jenkins container image locally, docker will go and download it from the docker hub registry. You will see something like this below as out put.<\/p>\n\n\n\n
\"\"
running Jenkins container<\/figcaption><\/figure>\n\n\n\n
Now goto http:\/\/localhost:8080<\/p>\n\n\n\n
\"\"
Jenkins home page<\/figcaption><\/figure>\n\n\n\n
Now a big question how to find out admin password ??? as the password would be in container and not in local host machine, we should get it from there.<\/p>\n\n\n\n
Run below command :<\/p>\n\n\n
docker exec <containerID<\/span>><\/span> cat \/var\/jenkins_home\/secrets\/initialAdminPassword<\/code><\/span>Code language:<\/span> HTML, XML<\/span> (<\/span>xml<\/span>)<\/span><\/small><\/pre>\n\n\n
This will print out the admin password on screen, something like this:<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
Note, as container ID gets generated on the run time. It would be different for you and me. <\/p>\n\n\n\n
Lets copy this password and enter it on the jenkins dashboard :<\/p>\n\n\n\n
\"\"<\/figure>\n\n\n\n
If you are seeing dashboard like above – congratulations you have successfully installed Jenkins as docker container pat your back and start using it. <\/p>\n\n\n\n
More on Jenkins in the upcoming lectures. If you like this article feel free to check other articles by me.<\/p>\n\n\n\n
Gaurav Bajpai <\/a><\/p>\n\n\n