kubernetes实验挑战二（troubleshoot pv pvc ）

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This 2-Node Kubernetes cluster is broken! Troubleshoot, fix the cluster issues and then deploy the objects according to the given architecture diagram to unlock our Image Gallery!!

1、

• kubeconfig = /root/.kube/config, User = ‘kubernetes-admin’ Cluster: Server Port = ‘6443’'.
• Fix kube-apiserver. Make sure its running and healthy.
• Master node: coredns deployment has image: ‘registry.k8s.io/coredns/coredns:v1.8.6’

首先查看错误提示：

显示端口连接被拒绝，查看端口是否正常

由此可见端口错误，修改端口为6443

vim .kube/config
server:https://controlplane:6443

其次，查看apiserver日志，看错误在哪里


根据日志提示，修改kube-apiserver.yml文件里的证书名称，之后重启kubelet即可

最后，查看coredns pod的状态

修改镜像地址

确认running

2、
Copy all images from the directory ‘/media’ on the controlplane node to ‘/web’ directory on node01

scp /media/* node01:/web/

3、

• Create new PersistentVolume = ‘data-pv’
• PersistentVolume = data-pv, accessModes = ‘ReadWriteMany’
• PersistentVolume = data-pv, hostPath = ‘/web’
• PersistentVolume = data-pv, storage = ‘1Gi’

apiVersion: v1
kind: PersistentVolume
metadata:name: data-pvlabels:type: local
spec:storageClassName: manualcapacity:storage: 1GiaccessModes:- ReadWriteManyhostPath:path: "/web"

4、

• Create new PersistentVolumeClaim = ‘data-pvc’
• PersistentVolume = ‘data-pvc’, accessModes = ‘ReadWriteMany’
• PersistentVolume = ‘data-pvc’, storage request = ‘1Gi’
• PersistentVolume = ‘data-pvc’, volumeName = ‘data-pv’

apiVersion: v1
kind: PersistentVolumeClaim
metadata:name: data-pvc
spec:accessModes:- ReadWriteManyresources:requests:storage: 1GivolumeName: data-pv

5、

• New Service, name: ‘gop-fs-service’
• Service name: gop-fs-service, port: ‘8080’
• Service name: gop-fs-service, targetPort: ‘8080’
• Service name: gop-fs-service, NodePort: ‘31200’

apiVersion: v1
kind: Service
metadata:name: gop-fs-service
spec:type: NodePortselector:app.kubernetes.io/name: gop-fs-serverports:- protocol: TCPport: 8080targetPort: 8080nodePort: 31200

6、

Create a pod for file server, name: ‘gop-file-server’

pod: gop-file-server image: ‘kodekloud/fileserver’

pod: gop-file-server mountPath: ‘/web’

pod: gop-file-server volumeMount name: ‘data-store’

pod: gop-file-server persistent volume name: data-store

pod: gop-file-server persistent volume claim used: ‘data-pvc’

apiVersion: v1
kind: Pod
metadata:name: gop-file-server
spec:volumes:- name: data-storepersistentVolumeClaim:claimName: data-pvccontainers:- name: gop-file-serverimage: kodekloud/fileservervolumeMounts:- mountPath: "/web"name: data-store

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