E0826 15:59:20.782550 1 main.go:229] Failed to create SubnetManager: error retrieving pod spec for 'kube-flannel/kube-flannel-ds-k79vs': Get "https://10.0.0.1:443/api/v1/namespaces/kube-flannel/pods/kube-flannel-ds-k79vs": dial tcp 10.0.0.1:443: i/o timeout
这种报错一般是 集群网段设置错误造成的
查看kube-flannel.yaml
step1 检查 kube-controller-manager.conf 文件--cluster-cidr=10.244.0.0/16
root@k8s-master01 \~\]# cat /opt/kubernetes/cfg/kube-controller-manager.conf KUBE_CONTROLLER_MANAGER_OPTS="--logtostderr=false \\ --v=2 \\ --log-dir=/opt/kubernetes/logs \\ --leader-elect=true \\ --bind-address=127.0.0.1 \\ --kubeconfig=/opt/kubernetes/cfg/kube-controller-manager.kubeconfig \\ --allocate-node-cidrs=true \\ --cluster-cidr=10.244.0.0/16 \\ --service-cluster-ip-range=10.0.0.0/24 \\ --cluster-signing-cert-file=/opt/kubernetes/ssl/ca.pem \\ --cluster-signing-key-file=/opt/kubernetes/ssl/ca-key.pem \\ --root-ca-file=/opt/kubernetes/ssl/ca.pem \\ --service-account-private-key-file=/opt/kubernetes/ssl/ca-key.pem \\ --cluster-signing-duration=87600h0m0s"
[root@k8s-node01 ~]# cat /opt/kubernetes/cfg/kube-proxy-config.yml
kind: KubeProxyConfiguration
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
metricsBindAddress: 0.0.0.0:10249
clientConnection:
kubeconfig: /opt/kubernetes/cfg/kube-proxy.kubeconfig
hostnameOverride: k8s-node01
clusterCIDR: 10.244.0.0/16
mode: ipvs