无法从kubernetes的另一个豆荚ping postgres豆荚

Question

kind: Pod
apiVersion: v1
metadata:
  name: marks-dummy-pod
spec:
  containers:
    - name: marks-dummy-pod
      image: djtijare/ubuntuping:v1
      command: ["/bin/bash", "-ec", "while :; do echo '.'; sleep 5 ; done"]
  restartPolicy: Never

FROM ubuntu
RUN apt-get update && apt-get install -y iputils-ping
CMD bash

PostgreService.yaml

kind: Service
apiVersion: v1
metadata:
 name: postgressvc
spec:
 type: ClusterIP
 ports:
 - port: 5432
   targetPort: 5432

已创建服务的终结点为

kind: Endpoints
apiVersion: v1
metadata:
 name: postgressvc
subsets:
 - addresses:
     - ip: 172.31.6.149
   ports:
     - port: 5432

然后我在pod（kubectl exec-it mark-dummy-pod bash）内运行ping172.31.6.149，但不工作。（ping localhost正在工作）

NAME                                       READY   STATUS    RESTARTS   AGE     IP             NODE              NOMINATED NODE   READINESS GATES
pod/marks-dummy-pod                        1/1     Running   0          43m     192.168.1.63   ip-172-31-11-87   <none>           <none>


NAME                       TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE     SELECTOR
service/postgressvc        ClusterIP   10.107.58.81     <none>        5432/TCP         33m     <none>


NAME                         ENDPOINTS           AGE
endpoints/postgressvc        172.31.6.149:5432   32m

NAME                            READY   STATUS    RESTARTS   AGE    IP             NODE              NOMINATED NODE   READINESS GATES
pod/postgres-855696996d-w6h6c   1/1     Running   0          44s    192.168.1.66   ip-172-31-11-87   <none>           <none>


NAME                    TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)          AGE    SELECTOR
service/postgres        NodePort    10.110.203.204   <none>        5432:31076/TCP   44s    app=postgres



 NAME                      ENDPOINTS           AGE
endpoints/postgres        192.168.1.66:5432   44s

Answer 1

所以问题出在我的DNS吊舱namespace=kube-system中

我只是创建新的kubernetes设置，并确保DNS正常工作

关于新的设置，请参阅我对另一个问题的回答