[no ci] contrast runtime tech preview

[malt3]

This PR is not meant to be merged as-is and only outlines my plans for installing a custom runtime class.

How to test

• git checkout feat/contrast-runtime-tech-preview
• just node-installer
• go to the ghcr.io page of the image and mark it as public
• copy container image with hash as image of installer container in deployments/contrast-node-installer/ds.yml
• change the namespace of the contrast-node-installer DaemonSet in deployments/contrast-node-installer/ds.yml to default or kube-system
• k apply -f deployments/contrast-node-installer
• just

[katexochen]

Tried to follow the steps, currently getting:

Failed to create pod sandbox: rpc error: code = Unknown desc = failed to get sandbox runtime: no runtime for "contrast-cc" is configured

[malt3]

Tried to follow the steps, currently getting:

Failed to create pod sandbox: rpc error: code = Unknown desc = failed to get sandbox runtime: no runtime for "contrast-cc" is configured

Ah. Yes. This is to be expected. Following some internal discussion, I opted to change the runtime name to include a part of the expected launch digest.
The runtimeclass and all deployment yaml files need to be patched to include the new name (probably dynamically).

For quick testing, you can overwrite handler: contrast-cc in runtimeclass.yaml with the new name. The name is visible in the logs of the installer (/opt/edgeless/RUNTIME_HANDLER_NAME). This is not the final UX and work in progress.

[malt3]

Everything is either upstreamed or an open PR. 🚀