Question

我已经使用kubeadm成功安装了Kubernetes。我正在运行两个VirtualBox VM，一个用于K8s主服务器，另一个用于节点。

Kubernetes Master

sudo kubectl get nodes
NAME                STATUS    ROLES     AGE       VERSION
kubernetes-master   Ready     master    1h        v1.10.2
kubernetes-node1    Ready     <none>    1h        v1.10.2

我可以正确地将两者都ssh到主（ssh 192.168.56.3）和节点（ssh 192.168.56.4）。

我想使用此部署文件在集群中部署nginx：

apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
  name: nginx-deployment
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 2 
  template: 
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx:latest
        ports:
        - containerPort: 80

我正在进入主节点，执行：sudo kubectl apply -f nginx-deployment.yml。

我看到吊舱卡在PENDING上：

sudo kubectl get pods --all-namespaces
NAMESPACE     NAME                                        READY     STATUS    RESTARTS   AGE
default       nginx-deployment-64ff85b579-5vkdz           0/1       Pending   0          4m
default       nginx-deployment-64ff85b579-w84lf           0/1       Pending   0          4m

这是其中一个的描述选项：

sudo kubectl describe pod nginx-deployment-64ff85b579-5vkdz 
Name:           nginx-deployment-64ff85b579-5vkdz
Namespace:      default
Node:           <none>
Labels:         app=nginx
                pod-template-hash=2099416135
Annotations:    <none>
Status:         Pending
IP:             
Controlled By:  ReplicaSet/nginx-deployment-64ff85b579
Containers:
  nginx:
    Image:        nginx:latest
    Port:         80/TCP
    Host Port:    0/TCP
    Environment:  <none>
    Mounts:
      /var/run/secrets/kubernetes.io/serviceaccount from default-token-7glwn (ro)
Conditions:
  Type           Status
  PodScheduled   False 
Volumes:
  default-token-7glwn:
    Type:        Secret (a volume populated by a Secret)
    SecretName:  default-token-7glwn
    Optional:    false
QoS Class:       BestEffort
Node-Selectors:  <none>
Tolerations:     node.kubernetes.io/not-ready:NoExecute for 300s
                 node.kubernetes.io/unreachable:NoExecute for 300s
Events:
  Type     Reason            Age               From               Message
  ----     ------            ----              ----               -------
  Warning  FailedScheduling  8s (x22 over 5m)  default-scheduler  0/2 nodes are available: 1 node(s) had taints that the pod didn't tolerate, 1 node(s) were not ready, 1 node(s) were out of disk space.

可能是什么问题？

Answer 1

嗯......出于某种原因，我的节点已关闭。我只需要重新启动kubelet服务，现在它可以工作：

systemctl restart kubelet.service

无法在一个Virtualbox guest虚拟机上使用kubernetes master启动nginx pod，在另一个VM上启动kubernetes节点

1 个答案: