k8s安装dashboard
Posted zhaojingyu
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1、Kubernetes Dashboard 是 k8s集群的?个 WEB UI管理?具,代码托管在 github 上,地址:
https://github.com/kubernetes/dashboard
2、安装直接使用官方文件就行(如果地址失效去github 看一下)
wget https://raw.githubusercontent.com/kubernetes/dashboard/v1.10.1/src/deploy/recommended/kubernetes-dashboard.yaml kubectl apply -f kubernetes-dashboard.yaml
3、我在master执行完现在如下
[root@master ~]# kubectl get pods --all-namespaces NAMESPACE NAME READY STATUS RESTARTS AGE kube-system coredns-576cbf47c7-2g27x 1/1 Running 0 18h kube-system coredns-576cbf47c7-47mgd 1/1 Running 0 18h kube-system etcd-master 1/1 Running 0 18h kube-system kube-apiserver-master 1/1 Running 0 18h kube-system kube-controller-manager-master 1/1 Running 0 18h kube-system kube-flannel-ds-amd64-hw277 1/1 Running 4 18h kube-system kube-flannel-ds-amd64-j5jcr 1/1 Running 1 18h kube-system kube-proxy-8tfsp 1/1 Running 1 18h kube-system kube-proxy-k6k79 1/1 Running 0 18h kube-system kube-scheduler-master 1/1 Running 0 18h kube-system kubernetes-dashboard-65c76f6c97-htfxt 1/1 ImagePullBackOff 0 18h #ImagePullBackOff:这个状态是有问题的,然后我就各种百度,从启服务器,发下没有什么卵用啊,初学就是比较费劲,然后才百度出来下面的解决方法
[root@master ~]# kubectl describe -n kube-system pod/kubernetes-dashboard-65c76f6c97-htfxt Name: kubernetes-dashboard-65c76f6c97-htfxt Namespace: kube-system Priority: 0 PriorityClassName: <none> Node: node01/172.21.0.14 Start Time: Sun, 13 Oct 2019 19:42:52 +0800 Labels: k8s-app=kubernetes-dashboard pod-template-hash=65c76f6c97 Annotations: <none> Status: Running IP: 10.244.1.3 Controlled By: ReplicaSet/kubernetes-dashboard-65c76f6c97 Containers: kubernetes-dashboard: Container ID: docker://7f9d2b3f22112c761af8c451376fb2155ac2014f7c13a4a7cda8ebcefebb0de3 Image: k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1 Image ID: docker://sha256:f9aed6605b814b69e92dece6a50ed1e4e730144eb1cc971389dde9cb3820d124 Port: 8443/TCP Host Port: 0/TCP Args: --auto-generate-certificates State: Running Started: Sun, 13 Oct 2019 20:20:58 +0800 Ready: True Restart Count: 0 Liveness: http-get https://:8443/ delay=30s timeout=30s period=10s #success=1 #failure=3 Environment: <none> Mounts: /certs from kubernetes-dashboard-certs (rw) /tmp from tmp-volume (rw) /var/run/secrets/kubernetes.io/serviceaccount from kubernetes-dashboard-token-m4s7k (ro) Conditions: Type Status Initialized True Ready True ContainersReady True PodScheduled True Volumes: kubernetes-dashboard-certs: Type: Secret (a volume populated by a Secret) SecretName: kubernetes-dashboard-certs Optional: false tmp-volume: Type: EmptyDir (a temporary directory that shares a pod‘s lifetime) Medium: kubernetes-dashboard-token-m4s7k: Type: Secret (a volume populated by a Secret) SecretName: kubernetes-dashboard-token-m4s7k Optional: false QoS Class: BestEffort Node-Selectors: <none> Tolerations: node-role.kubernetes.io/master:NoSchedule node.kubernetes.io/not-ready:NoExecute for 300s node.kubernetes.io/unreachable:NoExecute for 300s Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 60m default-scheduler Successfully assigned kube-system/kubernetes-dashboard-65c76f6c97-htfxt to node01 Normal Pulling 58m (x4 over 60m) kubelet, node01 pulling image "k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1" Warning Failed 58m (x4 over 60m) kubelet, node01 Failed to pull image "k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1": rpc error: code = Unknown desc = Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) Warning Failed 58m (x4 over 60m) kubelet, node01 Error: ErrImagePull Normal BackOff 57m (x6 over 60m) kubelet, node01 Back-off pulling image "k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1" Warning Failed 50m (x37 over 60m) kubelet, node01 Error: ImagePullBackOff Warning FailedMount 28m kubelet, node01 MountVolume.SetUp failed for volume "kubernetes-dashboard-certs" : couldn‘t propagate object cache: timed out waiting for the condition Warning FailedMount 28m kubelet, node01 MountVolume.SetUp failed for volume "kubernetes-dashboard-token-m4s7k" : couldn‘t propagate object cache: timed out waiting for the condition Warning FailedCreatePodSandBox 28m kubelet, node01 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "0ac235fed359b9d102282bcc816ff3de7c9e26d18270067761f5304aa998d747" network for pod "kubernetes-dashboard-65c76f6c97-htfxt": NetworkPlugin cni failed to set up pod "kubernetes-dashboard-65c76f6c97-htfxt_kube-system" network: open /run/flannel/subnet.env: no such file or directory Warning FailedCreatePodSandBox 28m kubelet, node01 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "233c431e6bceddf5f315f1b8aac762359202ca5a13cd4e4d2fd6a2aaf4123cd2" network for pod "kubernetes-dashboard-65c76f6c97-htfxt": NetworkPlugin cni failed to set up pod "kubernetes-dashboard-65c76f6c97-htfxt_kube-system" network: open /run/flannel/subnet.env: no such file or directory Normal SandboxChanged 28m (x3 over 28m) kubelet, node01 Pod sandbox changed, it will be killed and re-created. Warning FailedCreatePodSandBox 28m kubelet, node01 Failed create pod sandbox: rpc error: code = Unknown desc = failed to set up sandbox container "0de536b8aa18baa69b6fbdd645063b61ee7fe0fb141b063a0387872e216a6d18" network for pod "kubernetes-dashboard-65c76f6c97-htfxt": NetworkPlugin cni failed to set up pod "kubernetes-dashboard-65c76f6c97-htfxt_kube-system" network: open /run/flannel/subnet.env: no such file or directory Normal Pulling 27m (x3 over 28m) kubelet, node01 pulling image "k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1" Warning Failed 27m (x3 over 28m) kubelet, node01 Failed to pull image "k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1": rpc error: code = Unknown desc = Error response from daemon: Get https://k8s.gcr.io/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers) Warning Failed 27m (x3 over 28m) kubelet, node01 Error: ErrImagePull Normal BackOff 26m (x4 over 28m) kubelet, node01 Back-off pulling image "k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1" Warning Failed 23m (x14 over 28m) kubelet, node01 Error: ImagePullBackOff
结果是镜像不存在,我是阿里云所有直接从阿里云pull,在打包,然后在看,还是不行,然后又一顿百度,
docker pull mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.1 docker tag mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.10.1 k8s.gcr.io/kubernetes-dashboard-amd64:v1.10.1
一顿百度解决方法如下: 查看详细信息,发下pod在node01 上运行的,然后吧镜像save 一份到node01服务器就好了,或者直接在node01上面直接pull
[root@master ~]# kubectl get pods --all-namespaces -o wide NAMESPACE NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE kube-system coredns-576cbf47c7-2g27x 1/1 Running 0 18h 10.244.0.4 master <none> kube-system coredns-576cbf47c7-47mgd 1/1 Running 0 18h 10.244.0.5 master <none> kube-system etcd-master 1/1 Running 0 18h 172.21.0.10 master <none> kube-system kube-apiserver-master 1/1 Running 0 18h 172.21.0.10 master <none> kube-system kube-controller-manager-master 1/1 Running 0 18h 172.21.0.10 master <none> kube-system kube-flannel-ds-amd64-hw277 1/1 Running 4 18h 172.21.0.14 node01 <none> kube-system kube-flannel-ds-amd64-j5jcr 1/1 Running 1 18h 172.21.0.10 master <none> kube-system kube-proxy-8tfsp 1/1 Running 1 18h 172.21.0.14 node01 <none> kube-system kube-proxy-k6k79 1/1 Running 0 18h 172.21.0.10 master <none> kube-system kube-scheduler-master 1/1 Running 0 18h 172.21.0.10 master <none> kube-system kubernetes-dashboard-65c76f6c97-htfxt 1/1 Running 0 18h 10.244.1.3 node01 <none>
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