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0 pointsdominotw8y ago0 comments

> it is a pain to manage Jenkins itself with code. Plugins, authentication, all the non-job configuration, that is usually done via the GUI.

This is not true, all the configuration is scriptable via groovy scripts. We run bunch of groovy startup scripts that configure everything post launch. There is an effort to support this better[1] by jenkins team.

> How to you isolate job executions in Jenkins? In Kubernetes each job inherently isolated in containers.

We run one docker container/build on docker swarm. Each build gets its own isolated/clean environment. There is no EC2 provisioning ect. We already own and maintain docker swarm setup we just run jenkins/jenkins agents on it. I assume if you are using kubernetes it would be similar setup.

> Jenkins is a single point of failure, is isn't a highly available distributed scheduler.

I agree with this to an extent. If you are running jenkins on scheduler it can be rescheduled but you inflight jobs are dead.

1. https://github.com/jenkinsci/configuration-as-code-plugin

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vorg8y ago· 1 in thread

> > it is a pain to manage Jenkins itself with code

> This is not true, all the configuration is scriptable via groovy scripts. [...] There is an effort to support this better[1] by jenkins team

The link you gave confirms it by saying managing Jenkins code "require you know Jenkins internals, and are confident in writing groovy scripts". Neither GUI's (like the one shown in your link) nor procedural languages (like Apache Groovy, still procedural even though its collection API is crippled for Jenkins pipelines) are very good for configuring software. Nor is an unreadable declarative language (like XML).

A readable declarative language (like YAML, as shown in your link) is the solution. Languages like Groovy were an over-reaction against unreadable XML in the Java ecosystem. The correct solution is to switch from an unreadable to a readable declarative language for configuring software.

dominotwOP8y ago

> Languages like Groovy were an over-reaction against unreadable XML in the Java ecosystem. The correct solution is to switch from an unreadable to a readable declarative language for configuring software.

I somewhat agree with you. Unfortunately Jenkins team seems to have bet in the opposite direction by going full groovy https://github.com/jenkinsci/pipeline-examples

y4mi8y ago

Since when does docker swarm support build steps pre launch?

Are you sure you're not just using plain docker on docker swarm nodes?

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