Custom Node Image with Preinstalled Deployments

[tommazzo89]

Hi everyone,

I would like to prepare a local Kubernetes cluster with Prometheus preinstalled that can be easily shared with others. I will hold a workshop, where the attendees will need this to code along. I thought that a kind node image that already contains a Prometheus installation would be the ideal way to go. Is this possible and, if yes, how could I achieve that?

Thanks a lot in advance!

[BenTheElder]

It's not, because we have to bootstrap Kubernetes at runtime.

However, you can see #2303 for how the images could be pre-loaded with some hacks. The manifest will still need to be kubectl apply at runtime (or similar).

[lewisxin]

I have modified the containerd CRI code and built a version of containerd locally. May I know if there's a way tell KIND to use my local containerd when I run kind build node-image? Thanks in advance!

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UPDATE
managed to achieve this by

1. modifying the Dockerfile for base image and build it using make quick locally
2. pass it to --base-image flag in cmd kind node-image --base-image=gcr.io/k8s-staging-kind/base:v20230815-80a64d96-dirty

[tommazzo89]

Hi @BenTheElder,
I see. I think in that case it's probably easier if I prepare a small VM image with everything set up. Thanks a lot!