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3

One could also use docker Jenkins LTS. If one wants to start from scratch, just remove the mounted Jenkins home folder and there will be a clean Jenkins in no time. https://github.com/jenkinsci/docker/blob/master/README.md


2

One possible approach, although a bit tedious (and a bit dumb), would be to: make a fresh Jenkins installation of the exact same version on another (maybe scrappable) machine get the list of the (default) plugins it ends up with add/remove/update the plugins in the original Jenkins installation to match that list


2

One could use ansible geerlingguy.jenkins role. When this role is applied, a Jenkins system will be created without any plugins. Subsequently, one could install plugins manually, but also define them in ansible, i.e. plugins as code.


2

I find it strange that nobody mentioned the Configuration as Code plugin. Our solution to this problem is to maintain a base Docker image for jenkins, provisioned with two config files: jenkins.yml plugins.txt The plugins are installed by the install-plugins.sh script provided by the base Jenkins image: COPY casc_configs/plugins.txt /usr/share/jenkins/ref/...


1

According to the Jenkins Job DSL documentation shallow has to be enabled: shallow(true)


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