blog/kubernetes/network/policy/pod_access_limit.md

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2022-01-17 11:47:51 +08:00
# 限制pod访问
## 前期准备
创建一个pod
```bash
kubectl create deployment nginx --image=nginx
```
暴露端口
```
kubectl expose deployment nginx --port=80
```
测试访问
```
kubectl run busybox --rm -i --image=busybox /bin/sh
wget --spider --timeout=1 nginx
```
## 配置策略
nginx-policy.yaml
```yaml
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: access-nginx
spec:
podSelector:
matchLabels:
app: nginx
ingress:
- from:
- podSelector:
matchLabels:
access: "true"
```
应用策略
```
kubectl apply -f nginx-policy.yaml
```
***使用之前的测试方法,已经无法访问。***
测试访问
```bash
kubectl run busybox --rm -ti --labels="access=true" --image=busybox -- /bin/sh
```