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Apr 26. 2022
180. GCP CLI로 네트워크 로드밸런서 (5/6)
<1> 환경 설정
<2> 웝서버 2대 설치
<3> 로드밸런서 생성
<4> 확인
<5> 백엔드 로드밸런서 생성
<6> 로드밸런서 가서 해당 ip로 접속 확인
<1> 환경 설정
gcloud auth list
gcloud config list project
gcloud config set compute/zone us-central1-a
gcloud config set project secret-zxxxxyr-301xxxx
gcloud config list project
<2> 웝서버 2대 설치
1
gcloud compute instances create www1 --zone asia-northeast3-a --tags network-lb-tag
asia-northeast3-a
테그로 Firewall 80을 허용할 예정임
태그 필수
2
ssh로 로그인해서 실행
sudo apt-get update
sudo apt-get install apache2 -y
sudo service apache2 restart
ps -ef |grep apache2
ps -ef |grep apache2
root@www1:~# ps -ef |grep apache2
root 2173 1 0 08:38 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 2174 2173 0 08:38 ? 00:00:00 /usr/sbin/apache2 -k start
www-data 2175 2173 0 08:38 ? 00:00:00 /usr/sbin/apache2 -k start
root 2233 2156 0 08:39 pts/0 00:00:00 grep apache2
3
웹 브라우저로 접속 확인
잘됨
4
하나더 생성
gcloud compute instances create www2 --zone asia-northeast3-a --tags network-lb-tag
5
보안그룹 생성
gcloud compute firewall-rules create www-firewall-network-lb --target-tags network-lb-tag --allow tcp:80
root@cloudshell:~ (secret-zephyr-348001)$ gcloud compute firewall-rules create www-firewall-network-lb --target-tags network-lb-tag --allow tcp:80
Creating firewall...working..Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/firewalls/www-firewall-network-lb].
Creating firewall...done.
NAME: www-firewall-network-lb
NETWORK: default
DIRECTION: INGRESS
PRIORITY: 1000
ALLOW: tcp:80
DENY:
DISABLED: False
6
확인
gcloud compute instances list
curl http://[IP_ADDRESS]
<3> 로드밸런서 환경 설정
1
gcloud compute addresses create network-lb-ip-1 --region asia-northeast3
2
gcloud compute http-health-checks create basic-check
Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/httpHealthChecks/basic-check].
NAME: basic-check
HOST:
PORT: 80
REQUEST_PATH: /
3
타켓 pool만들기
gcloud compute target-pools create www-pool --region asia-northeast3 --http-health-check basic-check
4
gcloud compute target-pools add-instances www-pool --instances www1,www2
5
포워딩
gcloud compute forwarding-rules create www-rule --region asia-northeast3 --ports 80 --address network-lb-ip-1 --target-pool www-pool
<4> 확인
1
gcloud compute forwarding-rules describe www-rule --region asia-northeast3
2
while true; do curl -m1 IP_ADDRESS; done
<5> 백엔드 로드밸런서 생성
1
gcloud compute instance-templates create lb-backend-template --region=asia-northeast3 --tags=allow-health-check
echo "Page served from: $vm_hostname" | \
tee /var/www/html/index.html
systemctl restart apache2'
2
gcloud compute instance-groups managed create lb-backend-group --template=lb-backend-template --size=2 --zone=asia-northeast3-a
3
gcloud compute firewall-rules create fw-allow-health-check --action=allow --direction=ingress --source-ranges=130.211.0.0/22,35.191.0.0/16 --target-tags=allow-health-check --rules=tcp:80
Creating firewall...working..Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/firewalls/fw-allow-health-check].
Creating firewall...done.
NAME: fw-allow-health-check
NETWORK: default
DIRECTION: INGRESS
PRIORITY: 1000
ALLOW: tcp:80
DENY:
DISABLED: False
4
gcloud compute addresses create lb-ipv4-1 --ip-version=IPV4 --global
Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/addresses/lb-ipv4-1].
5
gcloud compute health-checks create http http-basic-check --port 80
Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/healthChecks/http-basic-check].
NAME: http-basic-check
PROTOCOL: HTTP
6
gcloud compute backend-services create web-backend-service --protocol=HTTP --port-name=http --health-checks=http-basic-check --global
gcloud compute backend-services create web-backend-service --protocol=HTTP --port-name=http --health-checks=http-basic-check --global
7
gcloud compute backend-services add-backend web-backend-service --instance-group=lb-backend-group --instance-group-zone=asia-northeast3-a --global
Updated [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/backendServices/web-backend-service].
8
gcloud compute url-maps create web-map-http --default-service web-backend-service
Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/urlMaps/web-map-http].
NAME: web-map-http
DEFAULT_SERVICE: backendServices/web-backend-service
9
gcloud compute target-http-proxies create http-lb-proxy --url-map web-map-http
Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/targetHttpProxies/http-lb-proxy].
NAME: http-lb-proxy
URL_MAP: web-map-http
10
gcloud compute forwarding-rules create http-content-rule --address=lb-ipv4-1 --global --target-http-proxy=http-lb-proxy --ports=80
Created [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/global/forwardingRules/http-content-rule].
<6> 로드밸런서 가서 해당 ip로 접속 확인
콘솔 > 로드밸런서 가서 해당 ip로 접속 확인
수정 자료
참고 자료
<7> 부하분산기 CLI로 삭제해야 하는 경우
1
gcloud compute target-pools delete www-pool
root@cloudshell:~ (secret-zephyr-348001)$ gcloud compute target-pools delete www-pool
Did you mean region [asia-east1] for target pool: [www-pool] (Y/n)? n
For the following target pool:
- [www-pool]
choose a region:
[1] asia-east1
[2] asia-east2
[3] asia-northeast1
[4] asia-northeast2
[5] asia-northeast3
[6] asia-south1
[7] asia-south2
[8] asia-southeast1
[9] asia-southeast2
[10] australia-southeast1
[11] australia-southeast2
[12] europe-central2
[13] europe-north1
[14] europe-west1
[15] europe-west2
[16] europe-west3
[17] europe-west4
[18] europe-west6
[19] europe-west8
[20] northamerica-northeast1
[21] northamerica-northeast2
[22] southamerica-east1
[23] southamerica-west1
[24] us-central1
[25] us-east1
[26] us-east4
[27] us-west1
[28] us-west2
[29] us-west3
[30] us-west4
Please enter your numeric choice: 24
The following target pools will be deleted:
- [www-pool] in [us-central1]
Do you want to continue (Y/n)? y
Deleted [https://www.googleapis.com/compute/v1/projects/secret-zephyr-348001/regions/us-central1/targetPools/www-pool].
2
Compute engine > 인스턴스 그룹에서 해당 인스턴스 그룹이 삭제되어 있는지 반드시 확인하자.
안되어 있다면 삭제 필요.
인스턴스 그룹을 삭제 하지 않으면 , VM인스턴스가 삭제해도 삭제 되지 않는다. 자동 확장이 동작함.
삭제
다음 공부
https://brunch.co.kr/@topasvga/2394
https://brunch.co.kr/@topasvga/1829
https://brunch.co.kr/@topasvga/2395
