synchronize clusterIP CIDR from serviceCIDR to support k8s 1.29

[cyclinder]

it could be sync service cidr to spidercoordinator from serviceCIDR in k8s 1.29

Thanks for contributing!

What type of PR is this?

• release/feature

What this PR does / why we need it:

Refer to https://github.com/kubernetes/enhancements/blob/master/keps/sig-network/1880-multiple-service-cidrs/README.md, kubernetes can allocate service ips from serviceCIDR resources in 1.29.

➜  ~ kubectl get servicecidr kubernetes -o yaml
apiVersion: networking.k8s.io/v1alpha1
kind: ServiceCIDR
metadata:
  creationTimestamp: "2024-01-25T08:36:00Z"
  finalizers:
  - networking.k8s.io/service-cidr-finalizer
  name: kubernetes
  resourceVersion: "504422"
  uid: 72461b7d-fddd-409d-bdf2-83d1a2c067ca
spec:
  cidrs:
  - 10.233.0.0/18
  - fd00:10:233::/116
status:
  conditions:
  - lastTransitionTime: "2024-01-28T06:38:55Z"
    message: Kubernetes Service CIDR is ready
    reason: ""
    status: "True"
    type: Ready

➜  ~ kubectl get servicecidr kubernetes -o yaml
apiVersion: networking.k8s.io/v1alpha1
kind: ServiceCIDR
metadata:
  creationTimestamp: "2024-01-25T08:36:00Z"
  finalizers:
  - networking.k8s.io/service-cidr-finalizer
  name: kubernetes
  resourceVersion: "504422"
  uid: 72461b7d-fddd-409d-bdf2-83d1a2c067ca
spec:
  cidrs:
  - 10.233.0.0/18
  - fd00:10:233::/116
status:
  conditions:
  - lastTransitionTime: "2024-01-28T06:38:55Z"
    message: Kubernetes Service CIDR is ready
    reason: ""
    status: "True"
    type: Ready

This PR synchronizes the service cidr from the serviceCIDR resource to the spidercoordinator. If the resource cannot be found or there are any errors, then we will fall back to the default behavior (from kubeadm-config and kube-controller-manager).

➜  test git:(3e40ed05) ✗ kubectl get servicecidr
NAME         CIDRS                             AGE
kubernetes   10.233.0.0/18,fd00:10:233::/116   5h41m
test1        10.234.0.0/18,fd00:10:234::/116   53m
➜  test git:(3e40ed05) ✗ kubectl get spidercoordinators.spiderpool.spidernet.io default -o yaml
apiVersion: spiderpool.spidernet.io/v2beta1
kind: SpiderCoordinator
metadata:
  creationTimestamp: "2024-01-25T08:41:50Z"
  finalizers:
  - spiderpool.spidernet.io
  generation: 1
  name: default
  resourceVersion: "41645"
  uid: d1e095db-d6e8-4413-b60e-fcf31ad2bf5e
spec:
  detectGateway: false
  detectIPConflict: false
  hijackCIDR:
  - 10.244.64.0/18
  - fd00:10:244::/112
  hostRPFilter: 0
  hostRuleTable: 500
  mode: auto
  podCIDRType: auto
  podDefaultRouteNIC: ""
  podMACPrefix: ""
  tunePodRoutes: true
  txQueueLen: 0
status:
  phase: Synced
  serviceCIDR:
  - 10.234.0.0/18
  - fd00:10:234::/116
  - 10.233.0.0/18
  - fd00:10:233::/116
  
➜  test kubectl delete servicecidr test1
servicecidr.networking.k8s.io "test1" deleted

➜  test git:(3e40ed05) ✗
➜  test git:(3e40ed05) ✗ kubectl get spidercoordinators.spiderpool.spidernet.io default -o yaml
apiVersion: spiderpool.spidernet.io/v2beta1
kind: SpiderCoordinator
metadata:
  creationTimestamp: "2024-01-25T08:41:50Z"
  finalizers:
  - spiderpool.spidernet.io
  generation: 1
  name: default
  resourceVersion: "46709"
  uid: d1e095db-d6e8-4413-b60e-fcf31ad2bf5e
spec:
  detectGateway: false
  detectIPConflict: false
  hijackCIDR:
  - 10.244.64.0/18
  - fd00:10:244::/112
  hostRPFilter: 0
  hostRuleTable: 500
  mode: auto
  podCIDRType: auto
  podDefaultRouteNIC: ""
  podMACPrefix: ""
  tunePodRoutes: true
  txQueueLen: 0
status:
  phase: Synced
  serviceCIDR:
  - 10.233.0.0/18
  - fd00:10:233::/116

Which issue(s) this PR fixes:

Fixes #2905

Special notes for your reviewer:

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (077e85d) 81.07% compared to head (0628e63) 81.13%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3132      +/-   ##
==========================================
+ Coverage   81.07%   81.13%   +0.05%     
==========================================
  Files          50       50              
  Lines        5358     5358              
==========================================
+ Hits         4344     4347       +3     
+ Misses        856      854       -2     
+ Partials      158      157       -1     

Flag	Coverage Δ
unittests	81.13% <87.50%> (+0.05%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
...pplicationcontroller/applicationinformers/utils.go	85.75% <100.00%> (ø)
pkg/ippoolmanager/ippool_informer.go	55.81% <100.00%> (ø)
pkg/ippoolmanager/ippool_mutate.go	97.05% <100.00%> (ø)
pkg/subnetmanager/subnet_manager.go	41.48% <66.66%> (ø)

... and 1 file with indirect coverage changes

[weizhoublue]

in the PR description, could you attach a yaml example of servicecidr to show what it looks like for reference

[weizhoublue]

for a new feature, it should add some explanation.
(1) doc/develop/roadmap
(2) doc/usage/coordinator.md

[ty-dc]

该 PR 似乎会导致 k8s 矩阵（1.22、1.23、1.24等版本）失败 ？是否只能在 1.29 版本的 K8S 上运行？

[cyclinder]

该 PR 似乎会导致 k8s 矩阵（1.22、1.23、1.24等版本）失败 ？是否只能在 1.29 版本的 K8S 上运行？

是的，e2e 只能在 1.29 以上跑