Minikube启动失败：“节点'minikube‘未找到”

Question

我有一个虚拟机，里面有Minikube。

当我使用minikube start --vm-driver=none命令运行它时，它工作得很好。

我的主机崩溃了，因此虚拟机也崩溃了。我重新启动了主机，然后重新启动了虚拟机，当我试图运行minikube时，它失败了，其中包含了大量信息：

[root@ubuntu]$ minikube start --vm-driver=none
Starting local Kubernetes v1.13.2 cluster...
Starting VM...
Getting VM IP address...
Moving files into cluster...
Setting up certs...
Connecting to cluster...
Setting up kubeconfig...
Stopping extra container runtimes...
Starting cluster components...
E0710 01:30:34.390608   42763 start.go:376] Error starting cluster: kubeadm init: 
sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI 


: running command: 
sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI 

 output: [init] Using Kubernetes version: v1.13.2
[preflight] Running pre-flight checks
    [WARNING FileExisting-ebtables]: ebtables not found in system path
    [WARNING FileExisting-socat]: socat not found in system path
    [WARNING Hostname]: hostname "minikube" could not be reached
    [WARNING Hostname]: hostname "minikube": lookup minikube on 10.240.0.2:53: server misbehaving
    [WARNING Port-10250]: Port 10250 is in use
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using 'kubeadm config images pull'
[kubelet-start] Writing kubelet environment file with flags to file "/var/lib/kubelet/kubeadm-flags.env"
[kubelet-start] Writing kubelet configuration to file "/var/lib/kubelet/config.yaml"
[kubelet-start] Activating the kubelet service
[certs] Using certificateDir folder "/var/lib/minikube/certs/"
[certs] Using existing ca certificate authority
[certs] Using existing apiserver certificate and key on disk
[certs] Generating "apiserver-kubelet-client" certificate and key
[certs] Generating "etcd/ca" certificate and key
[certs] Generating "etcd/server" certificate and key
[certs] etcd/server serving cert is signed for DNS names [minikube localhost] and IPs [10.240.0.23 127.0.0.1 ::1]
[certs] Generating "etcd/healthcheck-client" certificate and key
[certs] Generating "apiserver-etcd-client" certificate and key
[certs] Generating "etcd/peer" certificate and key
[certs] etcd/peer serving cert is signed for DNS names [minikube localhost] and IPs [10.240.0.23 127.0.0.1 ::1]
[certs] Generating "front-proxy-ca" certificate and key
[certs] Generating "front-proxy-client" certificate and key
[certs] Generating "sa" key and public key
[kubeconfig] Using kubeconfig folder "/etc/kubernetes"
[kubeconfig] Using existing up-to-date kubeconfig file: "/etc/kubernetes/admin.conf"
[kubeconfig] Using existing up-to-date kubeconfig file: "/etc/kubernetes/kubelet.conf"
[kubeconfig] Using existing up-to-date kubeconfig file: "/etc/kubernetes/controller-manager.conf"
[kubeconfig] Using existing up-to-date kubeconfig file: "/etc/kubernetes/scheduler.conf"
[control-plane] Using manifest folder "/etc/kubernetes/manifests"
[control-plane] Creating static Pod manifest for "kube-apiserver"
[control-plane] Creating static Pod manifest for "kube-controller-manager"
[control-plane] Creating static Pod manifest for "kube-scheduler"
[etcd] Creating static Pod manifest for local etcd in "/etc/kubernetes/manifests"
[wait-control-plane] Waiting for the kubelet to boot up the control plane as static Pods from directory "/etc/kubernetes/manifests". This can take up to 4m0s
[kubelet-check] Initial timeout of 40s passed.

Unfortunately, an error has occurred:
    timed out waiting for the condition

This error is likely caused by:
    - The kubelet is not running
    - The kubelet is unhealthy due to a misconfiguration of the node in some way (required cgroups disabled)

If you are on a systemd-powered system, you can try to troubleshoot the error with the following commands:
    - 'systemctl status kubelet'
    - 'journalctl -xeu kubelet'

Additionally, a control plane component may have crashed or exited when started by the container runtime.
To troubleshoot, list all containers using your preferred container runtimes CLI, e.g. docker.
Here is one example how you may list all Kubernetes containers running in docker:
    - 'docker ps -a | grep kube | grep -v pause'
    Once you have found the failing container, you can inspect its logs with:
    - 'docker logs CONTAINERID'
error execution phase wait-control-plane: couldn't initialize a Kubernetes cluster
: running command: 
sudo /usr/bin/kubeadm init --config /var/lib/kubeadm.yaml --ignore-preflight-errors=DirAvailable--etc-kubernetes-manifests --ignore-preflight-errors=DirAvailable--data-minikube --ignore-preflight-errors=Port-10250 --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-scheduler.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-apiserver.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-kube-controller-manager.yaml --ignore-preflight-errors=FileAvailable--etc-kubernetes-manifests-etcd.yaml --ignore-preflight-errors=Swap --ignore-preflight-errors=CRI 

.: exit status 1
================================================================================
An error has occurred. Would you like to opt in to sending anonymized crash
information to minikube to help prevent future errors?

To disable this prompt, run: 'minikube config set WantReportErrorPrompt false'
================================================================================
Please enter your response [Y/n]: Prompt timed out.
Bummer, perhaps next time!


minikube failed :( exiting with error code 1

当我运行minikube status时，我收到了以下消息：

host: Running
kubelet: Running
apiserver: Stopped
kubectl: Correctly Configured: pointing to minikube-vm at 10.240.0.23  

API服务器似乎存在问题。kubelet服务器正在运行，但有类似的错误：

kubelet.go:2266] node "minikube" not found

我运行minikube logs并看到相同的错误：

://localhost:8443/api/v1/nodes?fieldSelector=metadata.name%3Dminikube&limit=500&resourceVersion=0: dial tcp 127.0.0.1:8443: connect: connection refused
Jul 10 01:35:52 ubuntu kubelet[43030]: E0710 01:35:52.587064   43030 reflector.go:134] k8s.io/kubernetes/pkg/kubelet/config/apiserver.go:47: Failed to list *v1.Pod: Get https://localhost:8443/api/v1/pods?fieldSelector=spec.nodeName%3Dminikube&limit=500&resourceVersion=0: dial tcp 127.0.0.1:8443: connect: connection refused
Jul 10 01:35:52 ubuntu kubelet[43030]: E0710 01:35:52.590979   43030 kubelet.go:2266] node "minikube" not found

它似乎有一些问题，连接到127.0.0.1:8443，因此发送错误，"minikube“没有找到。

我看到这个问题已经被提到了这里，但是我尝试了这个解决方案，但它对我无效。

我停止了minikube，删除它，并重新启动它，但同样的问题出现了。

你知道这是什么原因吗？

Answer 1

我就这样解决了：

minikube stop && minikube delete
docker rm -f $(docker ps -aq)
reboot

重新启动后，它正确地启动。

但我仍然不明白，如果不重新启动，它是如何被修复的。

重新启动是缺失的部分。如果您不重新启动就执行这些命令，然后尝试重新启动它，它将不会启动。

Answer 2

大多数情况下，当我们在蜂群模式下运行码头时，就会出现这个错误。

解决此问题的一个简单方法可以是运行以下命令：

$ docker leave swarm
$ docker network prune