Minikube 无法启动：“找不到节点‘minikube’”

Question

我有一个装有 Minikube 的虚拟机。
当我使用minikube start --vm-driver=none 命令运行它时效果很好。

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，当我尝试运行 minikube 时，它​​失败并显示了很多信息：

[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：

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

API 服务器似乎有问题。 kubelet 服务器正在运行，但出现如下错误：

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

连接到 127.0.0.1:8443 似乎有一些问题，因此发送了找不到“minikube”的错误。

我看到 here 已经提到了这个问题，但我尝试了解决方案，但它对我不起作用。
我停止了 minikube 并将其删除并重新开始，但出现了同样的问题。

知道这是什么原因吗？

Answer 1

我是这样解决的：

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

重新启动后，它可以正常启动。
但我仍然不明白如何在不重新启动的情况下修复它。
重新启动是缺失的部分。如果您在不重新启动的情况下执行这些命令并尝试再次启动它，它将不会启动。

Answer 2

大多数情况下，当我们在 swarm 模式下运行 docker 时会出现此错误

此问题的简单解决方案是运行以​​下命令：

$ docker leave swarm
$ docker network prune