1.首选我调配了基础环境，安装了k8s和docker
2.添加了两个节点
3.网络组件选择了flannel，执行无异常
4.两个节点无反应，找不到
5.node节点日志报错
[root@node1 ~]# journalctl -f -u kubelet
-- Logs begin at 一 2021-11-15 14:21:01 CST. --
11月 15 15:31:41 node1 kubelet[2504]: W1115 15:31:41.602362 2504 cni.go:237] Unable to update cni config: no networks found in /etc/cni/net.d
11月 15 15:31:41 node1 kubelet[2504]: E1115 15:31:41.950351 2504 aws_credentials.go:77] while getting AWS credentials NoCredentialProviders: no valid providers in chain. Deprecated.
11月 15 15:31:41 node1 kubelet[2504]: For verbose messaging see aws.Config.CredentialsChainVerboseErrors
11月 15 15:31:42 node1 kubelet[2504]: E1115 15:31:42.534524 2504 kubelet.go:2183] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
11月 15 15:31:43 node1 kubelet[2504]: E1115 15:31:43.986661 2504 aws_credentials.go:77] while getting AWS credentials NoCredentialProviders: no valid providers in chain. Deprecated.
11月 15 15:31:43 node1 kubelet[2504]: For verbose messaging see aws.Config.CredentialsChainVerboseErrors
11月 15 15:31:44 node1 kubelet[2504]: E1115 15:31:44.988560 2504 aws_credentials.go:77] while getting AWS credentials NoCredentialProviders: no valid providers in chain. Deprecated.
11月 15 15:31:44 node1 kubelet[2504]: For verbose messaging see aws.Config.CredentialsChainVerboseErrors
11月 15 15:31:46 node1 kubelet[2504]: W1115 15:31:46.602858 2504 cni.go:237] Unable to update cni config: no networks found in /etc/cni/net.d
11月 15 15:31:47 node1 kubelet[2504]: E1115 15:31:47.535525 2504 kubelet.go:2183] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
11月 15 15:31:51 node1 kubelet[2504]: W1115 15:31:51.603578 2504 cni.go:237] Unable to update cni config: no networks found in /etc/cni/net.d
11月 15 15:31:52 node1 kubelet[2504]: E1115 15:31:52.536677 2504 kubelet.go:2183] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
11月 15 15:31:56 node1 kubelet[2504]: W1115 15:31:56.604989 2504 cni.go:237] Unable to update cni config: no networks found in /etc/cni/net.d
11月 15 15:31:56 node1 kubelet[2504]: E1115 15:31:56.974295 2504 remote_runtime.go:105] RunPodSandbox from runtime service failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:31:56 node1 kubelet[2504]: E1115 15:31:56.974328 2504 kuberuntime_sandbox.go:68] CreatePodSandbox for pod "kube-flannel-ds-amd64-nl9fb_kube-system(3e2ccdd7-e689-47ce-93be-de3fc93a4813)" failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:31:56 node1 kubelet[2504]: E1115 15:31:56.974340 2504 kuberuntime_manager.go:729] createPodSandbox for pod "kube-flannel-ds-amd64-nl9fb_kube-system(3e2ccdd7-e689-47ce-93be-de3fc93a4813)" failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:31:56 node1 kubelet[2504]: E1115 15:31:56.974599 2504 pod_workers.go:191] Error syncing pod 3e2ccdd7-e689-47ce-93be-de3fc93a4813 ("kube-flannel-ds-amd64-nl9fb_kube-system(3e2ccdd7-e689-47ce-93be-de3fc93a4813)"), skipping: failed to "CreatePodSandbox" for "kube-flannel-ds-amd64-nl9fb_kube-system(3e2ccdd7-e689-47ce-93be-de3fc93a4813)" with CreatePodSandboxError: "CreatePodSandbox for pod \"kube-flannel-ds-amd64-nl9fb_kube-system(3e2ccdd7-e689-47ce-93be-de3fc93a4813)\" failed: rpc error: code = Unknown desc = failed pulling image \"k8s.gcr.io/pause:3.1\": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)"
11月 15 15:31:57 node1 kubelet[2504]: E1115 15:31:57.537859 2504 kubelet.go:2183] Container runtime network not ready: NetworkReady=false reason:NetworkPluginNotReady message:docker: network plugin is not ready: cni config uninitialized
11月 15 15:31:59 node1 kubelet[2504]: E1115 15:31:59.007899 2504 remote_runtime.go:105] RunPodSandbox from runtime service failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:31:59 node1 kubelet[2504]: E1115 15:31:59.007930 2504 kuberuntime_sandbox.go:68] CreatePodSandbox for pod "kube-flannel-ds-fw825_kube-system(36dcb0cd-595f-4587-9660-db061e353a44)" failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:31:59 node1 kubelet[2504]: E1115 15:31:59.007942 2504 kuberuntime_manager.go:729] createPodSandbox for pod "kube-flannel-ds-fw825_kube-system(36dcb0cd-595f-4587-9660-db061e353a44)" failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:31:59 node1 kubelet[2504]: E1115 15:31:59.007998 2504 pod_workers.go:191] Error syncing pod 36dcb0cd-595f-4587-9660-db061e353a44 ("kube-flannel-ds-fw825_kube-system(36dcb0cd-595f-4587-9660-db061e353a44)"), skipping: failed to "CreatePodSandbox" for "kube-flannel-ds-fw825_kube-system(36dcb0cd-595f-4587-9660-db061e353a44)" with CreatePodSandboxError: "CreatePodSandbox for pod \"kube-flannel-ds-fw825_kube-system(36dcb0cd-595f-4587-9660-db061e353a44)\" failed: rpc error: code = Unknown desc = failed pulling image \"k8s.gcr.io/pause:3.1\": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)"
11月 15 15:32:00 node1 kubelet[2504]: E1115 15:32:00.008545 2504 remote_runtime.go:105] RunPodSandbox from runtime service failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:32:00 node1 kubelet[2504]: E1115 15:32:00.008716 2504 kuberuntime_sandbox.go:68] CreatePodSandbox for pod "kube-proxy-4kksm_kube-system(1431df00-46a8-431b-a0e9-e486719e8607)" failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:32:00 node1 kubelet[2504]: E1115 15:32:00.008738 2504 kuberuntime_manager.go:729] createPodSandbox for pod "kube-proxy-4kksm_kube-system(1431df00-46a8-431b-a0e9-e486719e8607)" failed: rpc error: code = Unknown desc = failed pulling image "k8s.gcr.io/pause:3.1": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)
11月 15 15:32:00 node1 kubelet[2504]: E1115 15:32:00.008787 2504 pod_workers.go:191] Error syncing pod 1431df00-46a8-431b-a0e9-e486719e8607 ("kube-proxy-4kksm_kube-system(1431df00-46a8-431b-a0e9-e486719e8607)"), skipping: failed to "CreatePodSandbox" for "kube-proxy-4kksm_kube-system(1431df00-46a8-431b-a0e9-e486719e8607)" with CreatePodSandboxError: "CreatePodSandbox for pod \"kube-proxy-4kksm_kube-system(1431df00-46a8-431b-a0e9-e486719e8607)\" failed: rpc error: code = Unknown desc = failed pulling image \"k8s.gcr.io/pause:3.1\": Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers)"
11月 15 15:32:01 node1 kubelet[2504]: W1115 15:32:01.605440 2504 cni.go:237] Unable to update cni config: no networks found in /etc/cni/net.d
esc = failed pulling image "k8s.gcr.io/pause:3.1": 再node 节点上手动pull 下这个镜像，你的node 节点应该没法访问 外网，将之前正常的节点node 上pause save 下来拷到 新节点上load 一下 就可以了。