kubernetes：删除网络质量

Question

我一直在实验网络策略，尽管我删除了所有政策，但现在POD无法再进行通信。

命名空间

apiVersion: v1
kind: Namespace
metadata:
    name: staging
    labels:
        env: staging

服务A

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: service-a
  namespace: staging
spec:
  replicas: 1
  selector:
    matchLabels:
      app: service-a
  template:
    metadata:
      labels:
        app: service-a
    spec:
      containers:
      - name: service-a
        image: busybox:1.33.1
        command: ["nc", "-lkv", "-p", "8080", "-e", "/bin/sh"]
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: service-a
  namespace: staging
spec:
  type: ClusterIP
  selector:
    app: service-a
  ports:
  - port: 8080

服务B

---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: service-b
  namespace: staging
spec:
  replicas: 1
  selector:
    matchLabels:
      app: service-b
  template:
    metadata:
      labels:
        app: service-b
    spec:
      containers:
      - name: service-b
        image: busybox:1.33.1
        command: ["nc", "-lkv", "-p", "8080", "-e", "/bin/sh"]
        ports:
        - containerPort: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: service-b
  namespace: staging
spec:
  type: ClusterIP
  selector:
    app: service-b
  ports:
  - port: 8080

测试通信

kubectl -n staging exec service-a-7c66d7cdf8-72gqq --  nc -vz service-b

期望的行为是他们可以互相联系，但是有超时。因此，如果剩下任何网络策略，我会说。

kubectl -n staging get networkpolicy
>No resources found in staging namespace.

我尝试过的是，

我删除了名称空间，重新创建并重新创建了这两个服务。 我已经浏览了所有命名空间寻找网络策略以删除它们，但是没有！

在我开始尝试网络刺激之前，一切都很好，但是现在我无法再次工作。对于网络控制器，我正在使用Cillum。

Answer 1

我很愚蠢，我只是忘了第二次写港口。应该是：

kubectl -n staging exec service-a-7c66d7cdf8-72gqq --  nc -vz service-b 8080