gcloud config set compute/zone us-east1-b
gcloud config set compute/region us-east1
gcloud compute instance-templates create nginx-template \
--region=us-east1 \
--machine-type f1-micro \
--network=default \
--subnet=default \
--tags=allow-health-check \
--image-family=debian-9 \
--image-project=debian-cloud \
--metadata=startup-script=\#\!\ /bin/bash$'\n'apt-get\ update$'\n'apt-get\ install\ -y\ nginx$'\n'service\ nginx\ start$'\n'sed\ -i\ --\ \'s/nginx/Google\ Cloud\ Platform\ -\ \'\"\$HOSTNAME\"\'/\'\ /var/www/html/index.nginx-debian.html
gcloud compute instance-groups managed create nginx-group --base-instance-name=nginx --template=nginx-template --size=2 --zone=us-east1-b
gcloud compute firewall-rules create nginx-health-check \
--network=default \
--action=allow \
--direction=ingress \
--source-ranges=130.211.0.0/22,35.191.0.0/16 \
--target-tags=allow-health-check \
--rules=tcp:80
gcloud compute http-health-checks create nginx-basic-check
gcloud compute instance-groups managed set-named-ports nginx-group --named-ports http:80
gcloud compute backend-services create nginx-backend --protocol HTTP --http-health-checks nginx-basic-check --global
B: URL-MAP的規則: 定義封包應該要往那些VM 走
gcloud compute backend-services add-backend nginx-backend --instance-group nginx-group --global
gcloud compute url-maps create web-map --default-service nginx-backend
---------------------------------------------------------------------
要到固定的Public IP
gcloud compute addresses create nginx-lb-ip --ip-version=IPV4 --global
gcloud compute addresses describe nginx-lb-ip \
--format="get(address)" \
--global
------------------------------------------------------------------------
A: NLB FronEnd : Inernet 的封包送到這裡來
gcloud compute target-http-proxies create nginx-lb-proxy --url-map web-map
gcloud compute forwarding-rules create http-content-rule\
--address=nginx-lb-ip\ <-綁定固定IP
--global \
--target-http-proxy=nginx-lb-proxy \ <-要轉到哪個backend 服務,參照URL-MAP
--ports=80
Internet -> A ->B
麻煩由下往上看
這是我的理解
有可能是錯的
這只是個很單純的Case
實際碰到的業務環境
可能不會這麼簡單
因為很多的VPC 會串在一起
