docker VS configuration-as-code-plugin

jenkins/jenkins:lts : Official docker image for jenkins

Once Docker is installed, we can start a Docker container from a Docker image. This can be an image you've built yourself or one of the 8.4 million images available on Docker Hub. From Redis to Jenkins to WordPress, there's an image for it on the hub.

The Jenkins server used in this project was installed using the documentation. See more

To simplify (if you already have a Docker up and running), start your Jenkins instance:

The recommended Docker image to use is the Official jenkins/jenkins image from Docker hub repo. A new jenkins/jenkins image is published each time a new release of Jenkins Docker is published (Don't use Jenkins image - Already deprecated). OK!!! Let's start.

What you are looking at is NOT docker file. Actual docker file could be found https://github.com/jenkinsci/docker/blob/master/11/alpine/hotspot/Dockerfile

You need to use this image: https://hub.docker.com/r/jenkins/jenkins

I've looked at this github issue which doesn't seem to solve the problem. Does anyone know how to accomplish this or do I need to manually update the plugins when they become available?

First, developers could be taking care of maintaining the CI/CD tool.. As is (dev)ops will provide a running instance and everything from there is dev's responsibility, eg. Jenkins via https://plugins.jenkins.io/configuration-as-code/ .

configuration-as-code https://plugins.jenkins.io/configuration-as-code/

Now we are going to use Configuration as Code plugin and some other plugins.

Looks like it does pretty much everything except install plugins ("We don't support installing plugins with JCasC" https://github.com/jenkinsci/configuration-as-code-plugin/blob/master/README.md)

--- jenkins: numExecutors: 1 systemMessage: "Hi, jenkins setup with jcasc" securityRealm: local: allowsSignup: false # prevents anonymous users from creating an account through the web interface users: - id: ${JENKINS_ADMIN_ID} password: ${JENKINS_ADMIN_PASSWORD} authorizationStrategy: globalMatrix: permissions: #- "View/Delete:authenticated" #- "View/Read:authenticated" #- "View/Configure:authenticated" #- "View/Create:authenticated" - "Job/Read:authenticated" - "Job/Build:authenticated" - "Job/Configure:authenticated" - "Job/Create:authenticated" - "Job/Delete:authenticated" - "Job/Discover:authenticated" - "Job/Move:authenticated" - "Job/Workspace:authenticated" - "Job/Cancel:authenticated" - "Run/Delete:authenticated" - "Run/Replay:authenticated" - "Run/Update:authenticated" - "Overall/Read:admin" - "Overall/Administer:admin" crumbIssuer: "standard" # Docker: https://github.com/jenkinsci/configuration-as-code-plugin/tree/master/demos/docker clouds: - docker: name: "docker" dockerApi: dockerHost: uri: "unix:///var/run/docker.sock" templates: - labelString: "docker-agent" dockerTemplateBase: # TODO: pin sha256 or versions when using in production image: "jenkins/agent" remoteFs: "/home/jenkins/agent" connector: attach: user: "jenkins" instanceCapStr: "10" retentionStrategy: idleMinutes: 1 security: scriptApproval: approvedSignatures: - method java.lang.String indexOf int - method io.jenkins.plugins.casc.ConfigurationAsCode configure - staticMethod io.jenkins.plugins.casc.ConfigurationAsCode get tool: git: installations: - home: "git" name: "Default" jdk: installations: - home: "/opt/java/openjdk" name: "java" maven: installations: - name: "maven" properties: - installSource: installers: - maven: id: "3.6.2" jobs: - file: /var/jenkins_config/jobs/folders.groovy - file: /var/jenkins_config/jobs/jobs.groovy

At my previous job the entirety of Jenkins was all in code. We would blow away our entire Jenkins instance and just copy/paste the config back into Jenkins and it would all be back. I believe that also had all of the configurations for the jobs as well. In that case, that could be ideal. If I remember correctly this was all done in Groovy and not using the Configuration as Code (YAML) plugin.

Most of the main plugins are configurable (here are some examples) and the rest you can configure via groovy. If there's good documentation, writing the groovy scripts is fairly easy too