[Jenkins-infra] A random thought for reducing ci.j.io cost

Marky Jackson marky.r.jackson at gmail.com
Fri Feb 7 21:46:55 UTC 2020

Huge +1 from me

> On Feb 7, 2020, at 1:22 PM, R. Tyler Croy <rtyler at brokenco.de> wrote:
> We've been discussing some cost-mitigation measures with the Jenkins board
> recently, and one of the big areas of cost for our infra is ci.jenkins.io.
> An idea that struck me yesterday was that we could just spend a few thousand
> dollars on a couple intel NUCs, keep those as "always on" agents, and then
> use AWS/Azure/GCP for burst capacity on top of that.
> In my home lab, I already have a cabinet with a few machines, cheap solar
> power, and a gigabit connection to the public internet. It would be relatively
> little effort for me to provision a few NUCs on their own network segment here.
> The downsides that come to mind would be: physical infrastructure, a dependency
> on Tyler's Great Little Datacenter, some personal cost to me (another network
> switch and perhaps some electrical work to ensure the circuit will support even more
> computers), and each machine would not have its own public IPv4 (though they
> would all have public IPv6s).
> The upside is that we've have basically some fixed cost executors, and even if
> they fail, service availability would not completely disappear since we can
> still burst into the cloud.
> In terms of space, I believe I could fit up to 8 more NUCs in the cabinet. The
> one I have right now has 8 cores and 32GB of RAM, which I think can easily
> handle a couple core builds ;)
> Let me know what you all think!
> --
> GitHub:  https://github.com/rtyler
> GPG Key ID: 0F2298A980EE31ACCA0A7825E5C92681BEF6CEA2
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