kubectl get pods no resourse found...

[root@localhost data]# kubectl get pods
No resources found.
[root@localhost data]#

1，确认docker有没有安装

[root@localhost data]# systemctl status docker
● docker.service - Docker Application Container EngineLoaded: loaded (/usr/lib/systemd/system/docker.service; enabled; vendor preset: disabled)Active: active (running) since Thu 2021-06-24 23:38:02 PDT; 4 weeks 2 days agoDocs: https://docs.docker.comMain PID: 25831 (dockerd)Memory: 150.9MCGroup: /system.slice/docker.service├─  472 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/923544ec52647cad7d59abb11e377e896a3dc546...├─  515 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/a219a33b97e5fb62de28580470bc9fbf8b703486...├─ 1264 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/42abc6d542451e6cf79da63078a0ebe3c793b91c...├─ 2277 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/431f615999bf71e1d1ad3a6744b58cd383b54266...├─25831 /usr/bin/dockerd├─25838 docker-containerd --config /var/run/docker/containerd/containerd.toml├─30959 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/01a584b6045f110b069548671b50c2e3bb28afbd...├─30970 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/1347e0489ef78405912353cc3504012b50dbff51...├─30973 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/f0bd0585afeea816cbce8f3f16aec1e3301bcfbf...└─30982 docker-containerd-shim -namespace moby -workdir /var/lib/docker/containerd/daemon/io.containerd.runtime.v1.linux/moby/ed0470803bda4fc22a061833e416353fa0e14be0...

docker已经安装了，且启动了

2，kubelet已经安装且启动了

[root@localhost data]# systemctl status kubelet
● kubelet.service - kubelet: The Kubernetes Node AgentLoaded: loaded (/etc/systemd/system/kubelet.service; enabled; vendor preset: disabled)Drop-In: /etc/systemd/system/kubelet.service.d└─10-kubeadm.confActive: active (running) since Sun 2021-07-25 06:59:52 PDT; 10min agoDocs: http://kubernetes.io/docs/Main PID: 48064 (kubelet)Memory: 74.5MCGroup: /system.slice/kubelet.service└─48064 /usr/bin/kubelet --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubelet.conf --kubeconfig=/etc/kubernetes/kubelet.conf --config=/var/lib/kubelet/config.yaml...Jul 25 07:10:08 k8s-master kubelet[48064]: I0725 07:10:08.194099   48064 kubelet_node_status.go:79] Attempting to register node k8s-master
Jul 25 07:10:08 k8s-master kubelet[48064]: E0725 07:10:08.195788   48064 kubelet_node_status.go:103] Unable to register node "k8s-master" with API server: nodes "k8s-...k8s-master"
Jul 25 07:10:13 k8s-master kubelet[48064]: E0725 07:10:13.366341   48064 eviction_manager.go:243] eviction manager: failed to get get summary stats: failed to get nod..." not found
Jul 25 07:10:15 k8s-master kubelet[48064]: I0725 07:10:15.196280   48064 kubelet_node_status.go:269] Setting node annotation to enable volume controller attach/detach
Jul 25 07:10:15 k8s-master kubelet[48064]: I0725 07:10:15.198868   48064 kubelet_node_status.go:79] Attempting to register node k8s-master
Jul 25 07:10:15 k8s-master kubelet[48064]: E0725 07:10:15.200740   48064 kubelet_node_status.go:103] Unable to register node "k8s-master" with API server: nodes "k8s-...k8s-master"
Jul 25 07:10:22 k8s-master kubelet[48064]: I0725 07:10:22.203883   48064 kubelet_node_status.go:269] Setting node annotation to enable volume controller attach/detach
Jul 25 07:10:22 k8s-master kubelet[48064]: I0725 07:10:22.207637   48064 kubelet_node_status.go:79] Attempting to register node k8s-master
Jul 25 07:10:22 k8s-master kubelet[48064]: E0725 07:10:22.209227   48064 kubelet_node_status.go:103] Unable to register node "k8s-master" with API server: nodes "k8s-...k8s-master"
Jul 25 07:10:23 k8s-master kubelet[48064]: E0725 07:10:23.366736   48064 eviction_manager.go:243] eviction manager: failed to get get summary stats: failed to get nod..." not found
Hint: Some lines were ellipsized, use -l to show in full.
[root@localhost data]#

3, 最好发现为啥加上--all-namespaces

[root@localhost data]# kubectl get pods --all-namespaces
NAMESPACE              NAME                                            READY     STATUS                   RESTARTS   AGE
kube-system            coredns-78fcdf6894-kq8mc                        1/1       Unknown                  0          30d
kube-system            coredns-78fcdf6894-ksptk                        1/1       Running                  0          30d
kube-system            coredns-78fcdf6894-pq57m                        1/1       Unknown                  0          30d
kube-system            coredns-78fcdf6894-rxbxp                        1/1       Running                  0          30d
kube-system            etcd-localhost.localdomain                      1/1       Unknown                  0          30d
kube-system            kube-apiserver-localhost.localdomain            1/1       Unknown                  0          30d
kube-system            kube-controller-manager-localhost.localdomain   1/1       Unknown                  0          30d
kube-system            kube-flannel-ds-amd64-42dkv                     0/1       Init:RunContainerError   0          26d
kube-system            kube-flannel-ds-amd64-f2f78                     0/1       Pending                  0          26d
kube-system            kube-proxy-4jrhl                                1/1       NodeLost                 0          30d
kube-system            kube-proxy-dmqcr                                1/1       Running                  0          30d
kube-system            kube-scheduler-localhost.localdomain            1/1       Unknown                  0          30d
kube-system            weave-net-jj68d                                 2/2       Running                  0          30d
kube-system            weave-net-pdk54                                 2/2       NodeLost                 1          30d
kubernetes-dashboard   dashboard-metrics-scraper-878cb9dc4-dvzsz       1/1       Unknown                  0          30d
kubernetes-dashboard   dashboard-metrics-scraper-878cb9dc4-trjdv       1/1       Running                  0          30d
kubernetes-dashboard   kubernetes-dashboard-5bc5dbff7f-lnzlc           1/1       Unknown                  0          30d
kubernetes-dashboard   kubernetes-dashboard-5bc5dbff7f-z2l5x           1/1       Running                  3          30d
rook-ceph              rook-ceph-operator-57ffb4fd9f-lbdg7             1/1       Running                  1807       30d
rook-ceph              rook-ceph-operator-57ffb4fd9f-vglhr             0/1       Unknown                  53         30d

很疑惑，待查资料。。。

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