Kubernetes状态挂起待定状态

Question

我试了好几次，搜索了很多次，但不知道为什么我的吊舱仍然处于待定状态。

我有一个非常简单的docker-compose.yml文件如下所示：

version: '3'

services:
  nginx:
    build: .
    container_name: "something_cool"
    ports:
      - '80:80'

并使用kompose命令将其转换为Kubernetes语法，因此它创建了两个deployment和service文件，如下所示。

部署：

apiVersion: apps/v1
kind: Deployment
metadata:
  annotations:
    kompose.cmd: kompose convert
    kompose.version: 1.22.0 (955b78124)
  creationTimestamp: null
  labels:
    io.kompose.service: nginx
  name: nginx
spec:
  replicas: 1
  selector:
    matchLabels:
      io.kompose.service: nginx
  strategy: {}
  template:
    metadata:
      annotations:
        kompose.cmd: kompose convert
        kompose.version: 1.22.0 (955b78124)
      creationTimestamp: null
      labels:
        io.kompose.service: nginx
    spec:
      containers:
        - image: nginx
          name: something-cool
          ports:
            - containerPort: 80
          resources: {}
      restartPolicy: Always
status: {}

服务：

apiVersion: v1
kind: Service
metadata:
  annotations:
    kompose.cmd: kompose convert
    kompose.version: 1.22.0 (955b78124)
  creationTimestamp: null
  labels:
    io.kompose.service: nginx
  name: nginx
spec:
  ports:
    - name: "80"
      port: 80
      targetPort: 80
  selector:
    io.kompose.service: nginx
status:
  loadBalancer: {}

现在，当我运行kubectl apply -k .时，我看到了service/nginx configured和deployment.apps/nginx configured，但是kubectl get pods以挂起的状态显示它。

这是在事件中庆祝荚名的结果：

6s        Warning   FailedScheduling               pod/nginx-77546f7866-j5gmd              0/3 nodes are available: 1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate, 2 node(s) had taint {node.kubernetes.io/unreachable: }, that the pod didn't tolerate.
4m4s        Warning   FailedScheduling               pod/nginx-77546f7866-j5gmd              0/3 nodes are available: 1 node(s) had taint {node-role.kubernetes.io/master: }, that the pod didn't tolerate, 2 node(s) had taint {node.kubernetes.io/unreachable: }, that the pod didn't tolerate.
5m6s        Normal    SuccessfulCreate               replicaset/nginx-77546f7866             Created pod: nginx-77546f7866-j5gmd

如果我是正确的，我看到我可以平和nslookup kubernetes.io好，但我不知道为什么我要得到这个错误。

Answer 1

我首先通过以下方式重新设置库伯奈特人来解决这个问题：

1. kubeadm reset
2. rm ~/.kube/config
3. kubeadm init --pod-network-cidr=10.244.0.0/16
4. kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
5. kubectl apply -k .