extend jenkins image to install maven

Question

I'm using the jenkins/jenkins:lts image at the moment. It runs fine and does everything I want to expect one thing. I want it to run Maven goals in the build steps. The problem is that there is not maven installed in the jenkins container environment.

So I want to extend the mentioned image to run an apt-get install maven.

My solution:

FROM "jenkins/jenkins:lts
USER root
RUN /bin/bash -c "apt-get install maven"

Will this be enough? I assume that all RUN and ENTRYPOINT steps of the jenkins image will run by itself and I do not need to re-execute them in my Dockerfile right?

pitchblack408 · Answer 1 · 2018-10-26T18:46:03.803

12

According to the documentation, this would be in your dockerfile

FROM jenkins/jenkins:lts
# if we want to install via apt
USER root
RUN apt-get update && apt-get install -y maven
# drop back to the regular jenkins user - good practice
USER jenkins

Assuming your docker file is in your current directory this is how you would build the image and install in your local docker repo

docker build -t jenkins-maven .

For more information

https://github.com/jenkinsci/docker

After installing maven this way, the mvn version will probably be older than what you need. When I ran this, it was Apache Maven 3.3.9

edited Oct 26 '18 at 18:46

answered Oct 26 '18 at 17:37

pitchblack408

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How do you know that USER jenkins is the right one? Is that somewhere defined in the base image? – dokaspar May 27 '20 at 08:54
@dokaspar, it is defined in base image. – pitchblack408 May 27 '20 at 20:52

score 11 · Accepted Answer · answered Sep 05 '17 at 10:34

11

you need to update package cache before install, and don't miss -y for apt-get install.

FROM jenkins/jenkins:lts
RUN apt-get update && apt-get install -y maven

answered Sep 05 '17 at 10:34

Bukharov Sergey

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Worked! executing `docker-compose up` with my new image yields `ERROR: pull access denied for jenkins/jenkins-maven, repository does not exist or may require 'docker login'` - did I miss something? – xetra11 Sep 05 '17 at 10:42
show me please `docker build` command arguments for jenkins-maven image – Bukharov Sergey Sep 05 '17 at 10:53
`docker build -t jenkins-maven .` – xetra11 Sep 05 '17 at 10:54
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Probably in `docker-compose.yml` image has name `jenkins/jenkins-maven`. But you built image `jenkins-maven`. Names must be the same. – Bukharov Sergey Sep 05 '17 at 11:11
4

I ran the command `bash -c "apt-get update && install -y maven"` in docker-compose and I got the error `E: List directory /var/lib/apt/lists/partial is missing. - Acquire (13: Permission denied)`. I tried with sudo as well but `bash: sudo: command not found`. Any ideas how can I run this? – Alex Pavlov Jun 08 '18 at 08:28
@AlexPavlov, take a look at my post below. It is more detailed. I was having a similar issue. – pitchblack408 Oct 26 '18 at 17:39

score 5 · Answer 3 · answered Jul 16 '18 at 13:07

5

Here is the simplest way to install maven into docker:

Connect to docker with root privilages

sudo docker exec -u root -t -i [container-id] bash
update and install maven

apt-get update & apt-get install

That's it.

answered Jul 16 '18 at 13:07

Mehmet Mustafa Demir

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This doesn't really answer the question at hand. It is possible to create a image from a dockerfile with desired tools included. – pitchblack408 Oct 26 '18 at 17:41

score 2 · Answer 4 · answered Dec 08 '19 at 00:20

2

Works file for me

FROM jenkins/jenkins:lts
USER root
RUN apt-get update && apt-get install -y maven

answered Dec 08 '19 at 00:20

Arthur Silva

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extend jenkins image to install maven

4 Answers4