如何将树莓派作为k8s的node部署laravel

背景

有一台服务器

已安装

• k8s master
• openxxx server

在家里有一台树莓派
已安装

• k8s client
• openxxx client

想实现的功能

想把树莓派设为k8s 的一个子节点，现在已经将树莓派通过openvpn加入到master中

root@iZbp12672j5u4tyarzzjk2Z:~# kubectl get nodes -o wide
NAME          STATUS   ROLES                  AGE    VERSION   INTERNAL-IP      EXTERNAL-IP   OS-IMAGE                         KERNEL-VERSION     CONTAINER-RUNTIME
node          Ready    control-plane,master   12m    v1.22.4   172.16.171.223   <none>        Ubuntu 20.04.2 LTS               5.4.0-90-generic   docker://20.10.11
raspberrypi   Ready    <none>                 9m9s   v1.22.4   10.8.0.5         <none>        Raspbian GNU/Linux 10 (buster)   5.10.63-v7l+       docker://18.9.1

STATUS 已经是ready状态，说明树莓派节点加入成功

遇到的问题

发布一个pod，在maste节点可以正常工作。

假如master不作为子节点，只有树莓派作为子节点。pod创建不成功,查看报错信息

root@iZbp12672j5u4tyarzzjk2Z:~# kubectl describe pod flaskapp-1-56894f6895-2dn4q
Name:           flaskapp-1-56894f6895-2dn4q
Namespace:      default
Priority:       0
Node:           raspberrypi/10.8.0.5
Start Time:     Fri, 26 Nov 2021 17:56:11 +0800
Labels:         name=flaskapp-1
                pod-template-hash=56894f6895
Annotations:    <none>
Status:         Pending
IP:
IPs:            <none>
Controlled By:  ReplicaSet/flaskapp-1-56894f6895
Containers:
  flaskapp-1:
    Container ID:
    Image:          jcdemo/flaskapp
    Image ID:
    Port:           5000/TCP
    Host Port:      0/TCP
    State:          Waiting
      Reason:       ContainerCreating
    Ready:          False
    Restart Count:  0
    Environment:    <none>
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-8t6bs (ro)
Conditions:
  Type              Status
  Initialized       True
  Ready             False
  ContainersReady   False
  PodScheduled      True
Volumes:
  kube-api-access-8t6bs:
    Type:                    Projected (a volume that contains injected data from multiple sources)
    TokenExpirationSeconds:  3607
    ConfigMapName:           kube-root-ca.crt
    ConfigMapOptional:       <nil>
    DownwardAPI:             true
QoS Class:                   BestEffort
Node-Selectors:              <none>
Tolerations:                 node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
                             node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
  Type     Reason                  Age                 From               Message
  ----     ------                  ----                ----               -------
  Warning  FailedScheduling        15m (x2 over 16m)   default-scheduler  0/1 nodes are available: 1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate.
  Normal   Scheduled               14m                 default-scheduler  Successfully assigned default/flaskapp-1-56894f6895-2dn4q to raspberrypi
  Warning  FailedCreatePodSandBox  13m                 kubelet            Failed to create pod sandbox: rpc error: code = Unknown desc = [failed to set up sandbox container "cf294e1199710e29ec3e5aac138d619bfde0427759cbc09c24cf0201d0a94709" network for pod "flaskapp-1-56894f6895-2dn4q": networkPlugin cni failed to set up pod "flaskapp-1-56894f6895-2dn4q_default" network: error getting ClusterInformation: Get "https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default": dial tcp 10.96.0.1:443: i/o timeout, failed to clean up sandbox container "cf294e1199710e29ec3e5aac138d619bfde0427759cbc09c24cf0201d0a94709" network for pod "flaskapp-1-56894f6895-2dn4q": networkPlugin cni failed to teardown pod "flaskapp-1-56894f6895-2dn4q_default" network: error getting ClusterInformation: Get "https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default": dial tcp 10.96.0.1:443: i/o timeout]
  Normal   SandboxChanged          49s (x26 over 13m)  kubelet            Pod sandbox changed, it will be killed and re-created.

主要信息

Failed to create pod sandbox: rpc error: code = Unknown desc = [failed to set up sandbox container "cf294e1199710e29ec3e5aac138d619bfde0427759cbc09c24cf0201d0a94709" network for pod "flaskapp-1-56894f6895-2dn4q": networkPlugin cni failed to set up pod "flaskapp-1-56894f6895-2dn4q_default" network: error getting ClusterInformation: Get "https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default": dial tcp 10.96.0.1:443: i/o timeout, failed to clean up sandbox container "cf294e1199710e29ec3e5aac138d619bfde0427759cbc09c24cf0201d0a94709" network for pod "flaskapp-1-56894f6895-2dn4q": networkPlugin cni failed to teardown pod "flaskapp-1-56894f6895-2dn4q_default" network: error getting ClusterInformation: Get "https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default": dial tcp 10.96.0.1:443: i/o timeout

很可能是k8s 和本地的网络不通

但不知道该往哪个方向排查或者这一方案是否可行？