Add runtime classes hook and runtimes chart

[vitorsavian]

Proposed Changes

• Fix for runtimes class chart not being used
• Add a hook for ownership of runtime classes that rke2 supports

Types of Changes

• Bugfix

Verification

• first run a rke2 server and see if the runtime classes are there

root@test:/home/test# kubectl get runtimeclasses --all-namespaces
NAME                  HANDLER               AGE
crun                  crun                  6m7s
nvidia                nvidia                15m
nvidia-experimental   nvidia-experimental   6m7s

• see the info in the runtime class

root@test:/home/test# kubectl describe runtimeclass crun
Name:         crun
Namespace:
Labels:       app.kubernetes.io/managed-by=Helm
Annotations:  meta.helm.sh/release-name: rke2-runtimeclasses
              meta.helm.sh/release-namespace: kube-system
API Version:  node.k8s.io/v1
Handler:      crun
Kind:         RuntimeClass
Metadata:
  Creation Timestamp:  2024-12-05T15:58:35Z
  Resource Version:    1638
  UID:                 f51f3d75-228a-45e7-841f-01f22e5cf9f4
Events:                <none>

• delete the labels and annotations from a runtime class

kubectl patch runtimeclass crun --type='json' -p='[{"op": "remove", "path": "/metadata/labels"},{"op": "remove", "path": "/metadata/annotations"}]'

• then see the runtime class again

root@test:/home/test# kubectl describe runtimeclass crun
Name:         crun
Namespace:
Labels:       <none>
Annotations:  <none>
API Version:  node.k8s.io/v1
Handler:      crun
Kind:         RuntimeClass
Metadata:
  Creation Timestamp:  2024-12-05T15:58:35Z
  Resource Version:    2624
  UID:                 f51f3d75-228a-45e7-841f-01f22e5cf9f4
Events:                <none>

• restart rke2 and describe the runtime class, see that the labels and annotations where updated

root@test:/home/test# kubectl describe runtimeclass crun
Name:         crun
Namespace:
Labels:       app.kubernetes.io/managed-by=Helm
Annotations:  meta.helm.sh/release-name: rke2-runtimeclasses
              meta.helm.sh/release-namespace: kube-system
API Version:  node.k8s.io/v1
Handler:      crun
Kind:         RuntimeClass
Metadata:
  Creation Timestamp:  2024-12-05T15:58:35Z
  Resource Version:    2654
  UID:                 f51f3d75-228a-45e7-841f-01f22e5cf9f4
Events:                <none>

• see if the runtime class helm install was a success

root@test: /home/test# kubectl get pods --all-namespaces
kube-system   helm-install-rke2-runtimeclasses-trdqp                  0/1     Completed           0               14m

Testing

Linked Issues

• RKE2 does not bundle RuntimeClass definitions #7242

User-Facing Change

Further Comments

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 43 lines in your changes missing coverage. Please review.

Project coverage is 22.94%. Comparing base (dd1c9fc) to head (116ecff).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
pkg/rke2/rc.go	0.00%	42 Missing ⚠️
pkg/rke2/rke2.go	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7382      +/-   ##
==========================================
- Coverage   23.23%   22.94%   -0.29%     
==========================================
  Files          33       34       +1     
  Lines        3461     3504      +43     
==========================================
  Hits          804      804              
- Misses       2609     2652      +43     
  Partials       48       48              

Flag	Coverage Δ
inttests	8.70% <0.00%> (-0.11%)	⬇️
unittests	16.30% <0.00%> (-0.21%)	⬇️

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