Ubuntu, Kubernetes Metallb 설치 정리

2개의 ubuntu system으로 구성된 kubernetes cluster의 master node에 설치

 

1. Enable strict ARP mode

 

kubectl get configmap kube-proxy -n kube-system -o yaml | \
sed -e "s/strictARP: false/strictARP: true/" | \
kubectl apply -f - -n kube-system

 

2. Install metallab by Manifest

 

kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml

 

3. namespace 확인

 

kubectl get namespaces

 

output:

 

 

4. pod 확인

 

kubectl get pods -n metallb-system

 

output:

 

 

5. base-metallb.yaml 파일 작성

 

# addresses 에 사용할 ip대역 입력
# name 확인

apiVersion: metallb.io/v1beta1
kind: IPAddressPool
metadata:
  name: base-pool
  namespace: metallb-system
spec:
  addresses:
  - 192.168.0.150-192.168.0.200

---

apiVersion: metallb.io/v1beta1
kind: L2Advertisement
metadata:
  name: base-l2-nework
  namespace: metallb-system
spec:
  ipAddressPools:
  - base-pool

 

6. 작성된 yaml 파일 적용

 

kubectl apply -n metallb-system -f base-metallb.yaml

 

7. 테스트

nginx deployment 테스트

 

kubectl create deploy nginx --image nginx:latest

 

7-1. deployment 확인

 

kubectl get all

 

output:

 

 

7-2. LoadBalancer (metallb) 연결

 

kubectl expose deploy nginx --port 80 --type LoadBalancer

 

7-3. deployment 확인

 

kubectl get all

 

output:

 

 

7-4. serivce 확인

 

kubectl get svc

 

output:

 

 

7-5. nginx deployment, service 종료

 

kubectl delete deployment nginx

kubectl delete service nginx

 

참고글

 

https://metallb.universe.tf/installation/

MetalLB, bare metal load-balancer for Kubernetes

 

https://metallb.universe.tf/configuration/

MetalLB, bare metal load-balancer for Kubernetes

 

https://www.youtube.com/watch?v=Yl8JKffmhuE

 

https://andrewpage.tistory.com/23

MetalLB 설치 (2022년 12월 20일에 설치)