What is the state of the art running Jenkins - dedicated server or containers?

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I've been running Jenkins in container for about 6 months, only one controller/master and no additional nodes, because its not needed in my case, I think. It works OK. However I find it to be a hassle to make changes to it, not because I'm afraid it will crash, but because it takes a long time to build the image (15+ min), installing SDK's etc. (1.3G).

My question is what is the state of the art running Jenkins? Would it be better to move Jenkins to a dedicated server (VM) with a webserver (reverse proxy)?

what-are-the-advantages-of-running-jenkins-in-a-docker-container

docker jenkins virtual-machine containers
1 Answers

Is 15 mins a long time because you make a change, build, find out something is wrong and need to make another change?

I would look at how you are building the container and get all the SDKs installed in the early layers so that rebuilding the container can use those layers from cache and move your layers that change to as late as possible so as little of the container needs rebuilding.

It is then worth looking at image layer caches if you clean your build environment regularly (I use Artifactory)

Generally, I would advocate that as little building is done on the Controller and this is shipped out to agents which are capable of running Docker.
This way you don't need to install loads of SDKs and change your Controller that often etc as you do all that in containers as and when you need them.

I use the EC2 cloud plugin to dynamically spin up agents as and when they are needed. But you could have a static pool of agents if you are not working in a cloud provider.

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