Kubernetes网络插件

Question

我已经安装了一个由3个节点组成的Kubernetes集群，并使用了calico网络插件。出于某种原因，我决定完全删除kubernetes，并使用一个不同的网络插件:法兰绒。

在我试图部署我的第一个容器之前，一切似乎都很好。

kubectl describe pod/cassandra返回以下错误：

Unknown desc = [failed to set up sandbox container "957f68c3cbe9b230b0e2bd6729a12c340f903de568622e28e335f7b48563a445" network for pod "cassandra-d7db46b86-dz7ck": networkPlugin cni failed to set up pod "cassandra-d7db46b86-dz7ck_default" network: error getting ClusterInformation: Get https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes"), failed to clean up sandbox container "957f68c3cbe9b230b0e2bd6729a12c340f903de568622e28e335f7b48563a445" network for pod "cassandra-d7db46b86-dz7ck": networkPlugin cni failed to teardown pod "cassandra-d7db46b86-dz7ck_default" network: error getting ClusterInformation: Get https://[10.96.0.1]:443/apis/crd.projectcalico.org/v1/clusterinformations/default: x509: certificate signed by unknown authority (possibly because of "crypto/rsa: verification error" while trying to verify candidate authority certificate "kubernetes")]
  Normal   SandboxChanged          3s (x3 over 18s)  kubelet, <node name>  Pod sandbox changed, it will be killed and re-created.

通过阅读错误，虽然我删除了它并安装了Flannel插件，但它似乎仍然被Kubernetes使用。

我怎么才能清理这个烂摊子？

Answer 1

1. 清除ip路由: ip路由刷新原鸟
2. 删除所有节点

中的所有棉布链接

ip link list | grep cali | awk '{print $2}' | cut -c 1-15 | xargs -I {} ip link delete {}

1. 删除ipip模块调制解调器-r ipip
2. 删除

rm /etc/cni/net.d/10-calico.conflist && rm /etc/cni/net.d/calico-kubeconfig

1. 重新启动kubelet服务

在这之后，你安装法兰绒。

Answer 2

您能否尝试重新连接(从集群中移除并再次加入它)计算/从节点？对我以前的一个案子有效。