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draft: wow
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kkumtree committed Oct 12, 2024
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Showing 1 changed file with 45 additions and 2 deletions.
47 changes: 45 additions & 2 deletions content/post/kans-6w-k3s-ingress/index.md
Original file line number Diff line number Diff line change
Expand Up @@ -208,10 +208,16 @@ If TLS is enabled for the Ingress, a Secret containing the certificate and key m
type: kubernetes.io/tls
```
상태도 잘 잡힌거 같으니, 일단 여기서 잠시 쉬겠습니다.
```bash
kubectl get all -n ingress
kubectl describe svc -n ingress ingress-nginx-controller
```
그렇군요.
```bash
# kubectl get all -n ingress
NAME READY STATUS RESTARTS AGE
pod/ingress-nginx-controller-979fc89cf-lk7th 1/1 Running 0 92s
Expand All @@ -227,4 +233,41 @@ NAME DESIRED CURRENT READY
replicaset.apps/ingress-nginx-controller-979fc89cf 1 1 1 92s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
ingress-nginx-controller NodePort 10.10.200.235 <none> 80:30080/TCP,443:30443/TCP 92s
```
```
NodePort를 사용하는 것을 알 수 있습니다.
~~IP Addr이 다른 이유는 EC2 끄고 다시켰더니, 오류나서 다시 올렸습니다.~~
```bash
# kubectl describe svc -n ingress ingress-nginx-controller
(전략)
Type: NodePort
IP Family Policy: SingleStack
IP Families: IPv4
IP: 10.10.200.180
IPs: 10.10.200.180
Port: http 80/TCP
TargetPort: http/TCP
NodePort: http 30080/TCP
Endpoints: 172.16.0.3:80
Port: https 443/TCP
TargetPort: https/TCP
NodePort: https 30443/TCP
Endpoints: 172.16.0.3:443
Session Affinity: None
External Traffic Policy: Cluster
Events: <none>
```
### (c) externalTrafficPolicy: Local
컨트롤러에 `NodePort`를 사용하고, `externalTrafficPolicy: Local`을 사용하면,
클라이언트의 요청이 도착한 노드로 바로 전달되어, 노드의 로컬 IP로부터 응답을 받을 수 있다고 하는데
일단 켜보고 환경값 체크를 합니다.
```bash
kubectl patch svc ingress-nginx-controller -n ingress -p '{"spec":{"externalTrafficPolicy":"Local"}}'
# service/ingress-nginx-controller patched
kubectl get cm -n ingress ingress-nginx-controller
kubectl exec deploy/ingress-nginx-controller -n ingress -it -- cat /etc/nginx/nginx.conf
# (생략) 평소에 보던 Nginx.conf 가 이했나....?

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