pod扩容

  1. [root@k8s-master01 ~]# kubectl get pod -o wide                            
  2. NAME                               READY   STATUS    RESTARTS   AGE   IP           NODE         NOMINATED NODE   READINESS GATES
  3. nginx-deployment-85756b779-fpqrm   1/1     Running   0          49s   10.244.1.2   k8s-node01   <none>           <none>
  4. [root@k8s-master01 ~]# 
  5. [root@k8s-master01 ~]# 
  6. [root@k8s-master01 ~]# 
  7. [root@k8s-master01 ~]# kubectl scale --replicas=3 deployment/nginx-deployment
  8. deployment.extensions/nginx-deployment scaled
  9. [root@k8s-master01 ~]# kubectl get pod -o wide
  10. NAME                               READY   STATUS    RESTARTS   AGE   IP           NODE         NOMINATED NODE   READINESS GATES
  11. nginx-deployment-85756b779-fpqrm   1/1     Running   0          89s   10.244.1.2   k8s-node01   <none>           <none>
  12. nginx-deployment-85756b779-m749m   1/1     Running   0          3s    10.244.2.3   k8s-node02   <none>           <none>
  13. nginx-deployment-85756b779-pwv8s   1/1     Running   0          3s    10.244.1.3   k8s-node01   <none>           <none>

删除pod

  1. [root@k8s-master01 ~]# kubectl get pod -o wide
  2. NAME                               READY   STATUS    RESTARTS   AGE    IP           NODE         NOMINATED NODE   READINESS GATES
  3. nginx-deployment-85756b779-rwk2p   1/1     Running   0          2m7s   10.244.2.2   k8s-node02   <none>           <none>
  4. [root@k8s-master01 ~]# 
  5. [root@k8s-master01 ~]# 
  6. [root@k8s-master01 ~]# 
  7. [root@k8s-master01 ~]# kubectl delete pod nginx-deployment-85756b779-rwk2p
  8. pod "nginx-deployment-85756b779-rwk2p" deleted

Harbor重启

修改配置之后重启

  1. docker-compose down
  2. cd /opt/harbor
  3. ./prepare
  4. docker-compose up -d

修改SVC类型使外部可以访问内部服务

  1. [root@k8s-master01 ~]# kubectl edit svc nginx-deployment
  2. # Please edit the object below. Lines beginning with a '#' will be ignored,
  3. # and an empty file will abort the edit. If an error occurs while saving this file will be
  4. # reopened with the relevant failures.
  5. #
  6. apiVersion: v1
  7. kind: Service
  8. metadata:
  9.   creationTimestamp: "2020-07-21T09:49:27Z"
  10.   labels:
  11.     run: nginx-deployment
  12.   name: nginx-deployment
  13.   namespace: default
  14.   resourceVersion: "96865"
  15.   selfLink: /api/v1/namespaces/default/services/nginx-deployment
  16.   uid: 162d55d4-8554-4cf5-84e8-0dc5e08c245a
  17. spec:
  18.   clusterIP: 10.109.46.42
  19.   externalTrafficPolicy: Cluster
  20.   ports:
  21.   - nodePort: 32650
  22.     port: 3000
  23.     protocol: TCP
  24.     targetPort: 80
  25.   selector:
  26.     run: nginx-deployment
  27.   sessionAffinity: None
  28.   type: NodePort    # 将这里的 ClusterIP 改为 NodePort
  29. status:
  30.   loadBalancer: {}
  32. 退出之后所有节点的对应端口都是开放可以访问的
  33. [root@k8s-master01 ~]# kubectl get svc
  34. NAME               TYPE        CLUSTER-IP     EXTERNAL-IP   PORT(S)          AGE
  35. kubernetes         ClusterIP   10.96.0.1      <none>        443/TCP          22h
  36. nginx-deployment   NodePort    10.109.46.42   <none>        3000:32650/TCP   21h

查看容器日志

  1. # kubectl log pod名称 (-c 如果里面有多个容器要指定容器名称，只有一个就不需要)  
  2. [root@k8s-master01 ~]# kubectl log myapp-pod -c test
  3. log is DEPRECATED and will be removed in a future version. Use logs instead.
  4. 2020/07/22 08:48:45 [emerg] 1#1: bind() to 0.0.0.0:80 failed (98: Address in use)
  5. nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
  6. 2020/07/22 08:48:45 [emerg] 1#1: bind() to 0.0.0.0:80 failed (98: Address in use)
  7. nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
  8. 2020/07/22 08:48:45 [emerg] 1#1: bind() to 0.0.0.0:80 failed (98: Address in use)
  9. nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
  10. 2020/07/22 08:48:45 [emerg] 1#1: bind() to 0.0.0.0:80 failed (98: Address in use)
  11. nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
  12. 2020/07/22 08:48:45 [emerg] 1#1: bind() to 0.0.0.0:80 failed (98: Address in use)
  13. nginx: [emerg] bind() to 0.0.0.0:80 failed (98: Address in use)
  14. 2020/07/22 08:48:45 [emerg] 1#1: still could not bind()