[Release-1.30] - ServiceLB is broken when rke2-cloud-provider is on 1.29 but k8s version is <=1.28

[brandond]

Backport fix for ServiceLB is broken when rke2-cloud-provider is on 1.29 but k8s version is <=1.28

• ServiceLB is broken when rke2-cloud-provider is on 1.29 but k8s version is <=1.28 #5882

[VestigeJ]

$ kgp cloud-controller-manager-ip -o yaml -n kube-system | grep -i image:

    image: index.docker.io/rancher/rke2-cloud-provider:v1.30.4-build20240910
    image: docker.io/rancher/rke2-cloud-provider:v1.30.4-build20240910

$ k version;rke2 -v;

Client Version: v1.30.5+rke2r1
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: v1.30.5+rke2r1
rke2 version v1.30.5+rke2r1 (0c83bc82315cd61664880d0b52a7e070e9fbd623)
go version go1.22.6 X:boringcrypto

$ kg svc,po

NAME                 TYPE           CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
service/kubernetes   ClusterIP      10.43.0.1      <none>        443/TCP        3m47s
service/test-lb      LoadBalancer   10.43.63.124   3.333.33.3   80:30266/TCP   67s

NAME                         READY   STATUS    RESTARTS   AGE
pod/nginx-7bf58bdb65-rnj2z   1/1     Running   0          66s

$ echo $COMMIT

da5986864fe517cff7fb7c0164740cf3dd91587c

=========== rke2 config ===========

node-external-ip: 3.3.3.32
token: YOUR_TOKEN_HERE
write-kubeconfig-mode: 644
debug: true
cni: multus,cilium
embedded-registry: true
enable-servicelb: true
disable-cloud-controller: false
disable:
  - rke2-ingress-nginx

$ kgp cloud-controller-manager-ip-3-3-3-32 -n kube-system -o yaml | grep -i image:

    image: index.docker.io/rancher/rke2-cloud-provider:v1.30.4-build20240910
    image: docker.io/rancher/rke2-cloud-provider:v1.30.4-build20240910

$ k version;rke2 -v;

Client Version: v1.30.5+rke2r1
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: v1.30.5+rke2r1
rke2 version v1.30.5+dev.da598686 (da5986864fe517cff7fb7c0164740cf3dd91587c)
go version go1.22.6 X:boringcrypto

$ kg po,svc

NAME                         READY   STATUS    RESTARTS   AGE
pod/nginx-7bf58bdb65-rnj2z   1/1     Running   0          12m

NAME                 TYPE           CLUSTER-IP     EXTERNAL-IP   PORT(S)        AGE
service/kubernetes   ClusterIP      10.43.0.1      <none>        443/TCP        14m
service/test-lb      LoadBalancer   10.43.63.124   3.3.3.32       80:30266/TCP   12m