k8s selector/labels/service/pod的使用

• 编写petclinic-service.yml ```yaml apiVersion: v1 kind: Service metadata: name: petclinic spec: ports:
  • name: http port: 8080 targetPort: 8080 nodePort: 31080 selector: app: petclinic # 对应pod文件中的labels type: NodePort

- 编写petclinic-pod.yml
```yaml
apiVersion: v1
kind: Pod
metadata:
  name: petclinic
  labels: 
    app: petclinic # 添加了labels，对应service文件中的selector
spec:
  containers:
    - name: petclinic
      image: xushencong/petclinic:v1

• 部署pod和service ```shell [~/docker/pod-in-action]$ kubectl apply -f 02 pod/petclinic created service/petclinic created [~/docker/pod-in-action]$ kubectl get all NAME READY STATUS RESTARTS AGE pod/petclinic 1/1 Running 0 9s

NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE service/kubernetes ClusterIP 10.96.0.1 443/TCP 7h3m service/petclinic NodePort 10.98.116.55 8080:31080/TCP 9s

- 问题开始出现
1. localhost:31080 无法访问
```shell
[~/docker/pod-in-action]$ kubectl describe svc petclinic
Name:                     petclinic
Namespace:                default
Labels:                   <none>
Annotations:              <none>
Selector:                 app=petclinic
Type:                     NodePort
IP Family Policy:         SingleStack
IP Families:              IPv4
IP:                       10.98.116.55
IPs:                      10.98.116.55
Port:                     http  8080/TCP
TargetPort:               8080/TCP
NodePort:                 http  31080/TCP
Endpoints:                172.17.0.5:8080
Session Affinity:         None
External Traffic Policy:  Cluster
Events:                   <none>

1. 访问minikube node地址也一样访问不到

访问192.168.49.2:31080没有反映，有帖子说访问到，但是我不行。
https://blog.csdn.net/axiang_/article/details/116842331

[~/docker/pod-in-action]$ minikube ip
192.168.49.2

1. 使用minikube启动service（https://blog.csdn.net/bbwangj/article/details/82558033?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_title~default-4.pc_relevant_paycolumn_v3&spm=1001.2101.3001.4242.3&utm_relevant_index=7）

   [~/docker/pod-in-action]$ minikube service petclinic #或者加 --url显示地址
   |-----------|-----------|-------------|---------------------------|
   | NAMESPACE |   NAME    | TARGET PORT |            URL            |
   |-----------|-----------|-------------|---------------------------|
   | default   | petclinic | http/8080   | http://192.168.49.2:31080 |
   |-----------|-----------|-------------|---------------------------|
   🏃  Starting tunnel for service petclinic.
   |-----------|-----------|-------------|------------------------|
   | NAMESPACE |   NAME    | TARGET PORT |          URL           |
   |-----------|-----------|-------------|------------------------|
   | default   | petclinic |             | http://127.0.0.1:60370 |
   |-----------|-----------|-------------|------------------------|
   🎉  正通过默认浏览器打开服务 default/petclinic...
   ❗  Because you are using a Docker driver on darwin, the terminal needs to be open to run it
   

   因为我的电脑是苹果芯片，报错了。

   #http://127.0.0.1:60370/
   {"message":"petclinic vreison: v1.0.0"}
   

• 终于访问成功了，但是看老师的教程，不需要minikube service petclinic这一步，在部署好了，直接就可以启动。我不明白我是哪里出了问题。。