[Release 1.24] Update flannel to v0.21.1

[rbrtbnfgl]

Is your feature request related to a problem? Please describe.

Describe the solution you'd like

Backport for #6884

Describe alternatives you've considered

Additional context

[bguzman-3pillar]

Validated on commit 77dbe64

$ k3s -v
k3s version v1.24.10+k3s-77dbe648 (77dbe648)
go version go1.19.5

Environment Details

Infrastructure

• Cloud
• Hosted

Node(s) CPU architecture, OS, and Version:

$ cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.1 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.1 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

Cluster Configuration:

1 server

Testing Steps

1. Install k3s curl -sfL https://get.k3s.io | INSTALL_K3S_COMMIT=77dbe648ad78d272b80f3304c1686e2ebe42fb81 INSTALL_K3S_EXEC="server " sh -
2. Run /var/lib/rancher/k3s/data/*/bin/flannel to check v0.21.1 is showed
3. Do some network checks: deploy a service that uses nodeport, deploy an ingress, deploy a clusterip service.

Validation Results:

$ /var/lib/rancher/k3s/data/*/bin/flannel
CNI Plugin flannel version v0.21.1-k3s1.23 (linux/amd64) commit HEAD built on 2023-02-11T03:33:34Z

$ kubectl get node,all,ingress -A 
NAME                    STATUS   ROLES                  AGE     VERSION
node/ip-<>   Ready    control-plane,master   3m57s   v1.24.10+k3s-77dbe648

NAMESPACE     NAME                                           READY   STATUS      RESTARTS   AGE
kube-system   pod/local-path-provisioner-687d6d7765-lrrlr    1/1     Running     0          3m42s
kube-system   pod/coredns-7b5bbc6644-v2tmk                   1/1     Running     0          3m42s
kube-system   pod/helm-install-traefik-crd-gmbld             0/1     Completed   0          3m43s
kube-system   pod/metrics-server-667586758d-c4vjb            1/1     Running     0          3m42s
kube-system   pod/svclb-traefik-46ead435-8vsqb               2/2     Running     0          3m14s
kube-system   pod/helm-install-traefik-pzdbz                 0/1     Completed   2          3m43s
kube-system   pod/traefik-64b96ccbcd-z9bxf                   1/1     Running     0          3m14s
default       pod/nginx-nodeport-deployment-c6c7fcb5-5rmmz   1/1     Running     0          97s
default       pod/nginx-nodeport-deployment-c6c7fcb5-kt7wh   1/1     Running     0          97s
default       pod/nginx-nodeport-deployment-c6c7fcb5-tn99q   1/1     Running     0          97s
default       pod/nginx-nodeport-deployment-c6c7fcb5-tlvtp   1/1     Running     0          97s
default       pod/othertest-deploy-q85p2                     1/1     Running     0          84s

NAMESPACE     NAME                            TYPE           CLUSTER-IP      EXTERNAL-IP     PORT(S)                      AGE
default       service/kubernetes              ClusterIP      10.43.0.1       <none>          443/TCP                      3m58s
kube-system   service/kube-dns                ClusterIP      10.43.0.10      <none>          53/UDP,53/TCP,9153/TCP       3m54s
kube-system   service/metrics-server          ClusterIP      10.43.20.188    <none>          443/TCP                      3m53s
kube-system   service/traefik                 LoadBalancer   10.43.111.101   <IP>   80:31423/TCP,443:31826/TCP   3m14s
default       service/nginx-nodeport-svc      NodePort       10.43.179.203   <none>          8080:30096/TCP               97s
default       service/othertest-ingress-svc   ClusterIP      10.43.123.196   <none>          8080/TCP                     84s

NAMESPACE     NAME                                    DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR   AGE
kube-system   daemonset.apps/svclb-traefik-46ead435   1         1         1       1            1           <none>          3m14s
default       daemonset.apps/othertest-deploy         1         1         1       1            1           <none>          84s

NAMESPACE     NAME                                        READY   UP-TO-DATE   AVAILABLE   AGE
kube-system   deployment.apps/local-path-provisioner      1/1     1            1           3m54s
kube-system   deployment.apps/coredns                     1/1     1            1           3m54s
kube-system   deployment.apps/metrics-server              1/1     1            1           3m54s
kube-system   deployment.apps/traefik                     1/1     1            1           3m14s
default       deployment.apps/nginx-nodeport-deployment   4/4     4            4           97s

NAMESPACE     NAME                                                 DESIRED   CURRENT   READY   AGE
kube-system   replicaset.apps/local-path-provisioner-687d6d7765    1         1         1       3m43s
kube-system   replicaset.apps/coredns-7b5bbc6644                   1         1         1       3m43s
kube-system   replicaset.apps/metrics-server-667586758d            1         1         1       3m43s
kube-system   replicaset.apps/traefik-64b96ccbcd                   1         1         1       3m14s
default       replicaset.apps/nginx-nodeport-deployment-c6c7fcb5   4         4         4       97s

NAMESPACE     NAME                                 COMPLETIONS   DURATION   AGE
kube-system   job.batch/helm-install-traefik-crd   1/1           15s        3m52s
kube-system   job.batch/helm-install-traefik       1/1           33s        3m52s

NAMESPACE   NAME                                          CLASS     HOSTS       ADDRESS         PORTS   AGE
default     ingress.networking.k8s.io/othertest-ingress   traefik   test1.com   <IP>  80      84s

$ curl -H 'Host: test1.com' http://<IP>/name.html
othertest-deploy-q85p2