add rancher-webhook-0.6 stream

[octo-sts]

[octo-sts]

Gen AI suggestions to solve the build error:

• Detected Error:

undefined: genericfeatures.StrictCostEnforcementForVAP
undefined: genericfeatures.StrictCostEnforcementForWebhooks

• Error Category: Dependency/Version

• Failure Point: Go build step failing due to incompatible Kubernetes dependency version

• Root Cause Analysis: The error occurs because we're trying to use k8s.io/kubernetes v1.30.3 which has features that aren't available in the current dependency chain. These feature flags were likely introduced in a newer version of the genericfeatures package.

• Suggested Fix:

1. Modify the go/bump step in the melange YAML to use a compatible Kubernetes version:

  - uses: go/bump
    with:
      deps: k8s.io/kubernetes@v1.29.0 golang.org/x/crypto@v0.31.0
      modroot: .

• Explanation:
The error indicates missing feature flags that were likely introduced in Kubernetes 1.30+. Since v1.30.3 is still in alpha/beta, we should use the latest stable version (1.29.x) which will have a more stable API surface.

• Additional Notes:

• Kubernetes 1.30 is currently in development/alpha stage
• The StrictCostEnforcementForVAP and StrictCostEnforcementForWebhooks features are new additions
• Rancher webhook may not be ready for k8s 1.30 features yet
• Consider checking the go.mod in the upstream repository for their tested k8s version

• References:

• Kubernetes Release Schedule: https://kubernetes.io/releases/
• Kubernetes Feature Gates Documentation: https://kubernetes.io/docs/reference/command-line-tools-reference/feature-gates/

The fix aligns with Wolfi's principles by:

• Maintaining stability by using released versions
• Ensuring security by using recent stable releases
• Following upstream compatibility requirements