FelipeAlafy · April 23, 2024 22:32
diff --git a/gistfile1.txt b/gistfile1.txt
 # First Task
 gcloud config set project PROJECT_ID_CAN_BE_FOUND_ON_YOUR_LAB
 gcloud config set compute/region REGION
 gcloud config set compute/zone ZONE
 gcloud compute instances create nucleus-webserver1 --machine-type=e2-micro

 #Seccond task - copy and past the following lines into your cloud console to create the startup.sh file which will be the base for your template startup script
 cat << EOF > startup.sh
 #! /bin/bash
 apt-get update
 apt-get install -y nginx
 service nginx start
 sed -i -- 's/nginx/Google Cloud Platform - '"\$HOSTNAME"'/' /var/www/html/index.nginx-debian.html
 EOF

 -- Other commands:
 gcloud compute instance-templates create lb-backend-template \
   --region=REGION \
   --network=default \
   --subnet=default \
   --tags=allow-health-check \
   --machine-type=e2-medium \
   --image-family=debian-11 \
   --image-project=debian-cloud \
   --metadata-from-file startup-script=startup.sh

 #Creating the pool
 gcloud compute target-pools create nginx-pool

 gcloud compute instance-groups managed create lb-backend-group --base-instance-name nginx --template=lb-backend-template --size=2 --target-pool nginx-pool --zone=us-east1-b

 #Creating a firewall for tcp:80
 gcloud compute firewall-rules create www-firewall --allow tcp:80

 #Allowing tcp connection through the firewall
 gcloud compute firewall-rules create permit-tcp-rule-586 \
  --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
  --target-pool nginx-pool

 # Creating an external IPV4 address
 gcloud compute addresses create lb-ipv4-1 \
  --ip-version=IPV4 \
  --global

 # Health check for port 80
 gcloud compute health-checks create http http-basic-check --port 80

 # Forwarding Rule to the nginx-pool
 gcloud compute forwarding-rules create nginx-lb \
        --region REGION \
        --ports=80 \
        --target-pool nginx-pool

 # Creating a basic http check
 gcloud compute http-health-checks create http-basic-check

 #Defining the ports to http:80 to the mangened group
 gcloud compute instance-groups managed set-named-ports lb-backend-group --named-ports http:80

 #Backend service
 gcloud compute backend-services add-backend web-backend-service   --instance-group=lb-backend-group   --instance-group-zone=ZONE --global

 #URL Map
 gcloud compute url-maps create web-map-http --default-service web-backend-service

 #Proxy
 gcloud compute target-http-proxies create http-lb-proxy --url-map web-map-http

 #Forwarding rule to the proxy
 gcloud compute forwarding-rules create http-content-rule \
   --address=lb-ipv4-1\
   --global \
   --target-http-proxy=http-lb-proxy \
   --ports=80

 #Adding the VM Instances to the firewall, it won't load at the browser if you don't do the followings steps, neither count as done
 gcloud compute instances add-tags NAME_OF_INSTANCE_1 --tags http-server,https-server

 gcloud compute instances add-tags NAME_OF_INSTANCE_2 --tags http-server,https-server

 gcloud compute firewall-rules create default-allow-http --direction=INGRESS --priority=1000 --network=default --action=ALLOW --rules=tc
 p:80 --source-ranges=0.0.0.0/0 --target-tags=http-server

 # OPTIONAL
 # you can check your instances from the loadbalancer external ip address only http will work, because of the certification need for https
 http://[EXTERNAL_IP]:80
	# First Task
	gcloud config set project PROJECT_ID_CAN_BE_FOUND_ON_YOUR_LAB
	gcloud config set compute/region REGION
	gcloud config set compute/zone ZONE
	gcloud compute instances create nucleus-webserver1 --machine-type=e2-micro

	#Seccond task - copy and past the following lines into your cloud console to create the startup.sh file which will be the base for your template startup script
	cat << EOF > startup.sh
	#! /bin/bash
	apt-get update
	apt-get install -y nginx
	service nginx start
	sed -i -- 's/nginx/Google Cloud Platform - '"\$HOSTNAME"'/' /var/www/html/index.nginx-debian.html
	EOF

	-- Other commands:
	gcloud compute instance-templates create lb-backend-template \
	--region=REGION \
	--network=default \
	--subnet=default \
	--tags=allow-health-check \
	--machine-type=e2-medium \
	--image-family=debian-11 \
	--image-project=debian-cloud \
	--metadata-from-file startup-script=startup.sh

	#Creating the pool
	gcloud compute target-pools create nginx-pool

	gcloud compute instance-groups managed create lb-backend-group --base-instance-name nginx --template=lb-backend-template --size=2 --target-pool nginx-pool --zone=us-east1-b

	#Creating a firewall for tcp:80
	gcloud compute firewall-rules create www-firewall --allow tcp:80

	#Allowing tcp connection through the firewall
	gcloud compute firewall-rules create permit-tcp-rule-586 \
	--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
	--target-pool nginx-pool

	# Creating an external IPV4 address
	gcloud compute addresses create lb-ipv4-1 \
	--ip-version=IPV4 \
	--global

	# Health check for port 80
	gcloud compute health-checks create http http-basic-check --port 80

	# Forwarding Rule to the nginx-pool
	gcloud compute forwarding-rules create nginx-lb \
	--region REGION \
	--ports=80 \
	--target-pool nginx-pool

	# Creating a basic http check
	gcloud compute http-health-checks create http-basic-check

	#Defining the ports to http:80 to the mangened group
	gcloud compute instance-groups managed set-named-ports lb-backend-group --named-ports http:80

	#Backend service
	gcloud compute backend-services add-backend web-backend-service --instance-group=lb-backend-group --instance-group-zone=ZONE --global

	#URL Map
	gcloud compute url-maps create web-map-http --default-service web-backend-service

	#Proxy
	gcloud compute target-http-proxies create http-lb-proxy --url-map web-map-http

	#Forwarding rule to the proxy
	gcloud compute forwarding-rules create http-content-rule \
	--address=lb-ipv4-1\
	--global \
	--target-http-proxy=http-lb-proxy \
	--ports=80

	#Adding the VM Instances to the firewall, it won't load at the browser if you don't do the followings steps, neither count as done
	gcloud compute instances add-tags NAME_OF_INSTANCE_1 --tags http-server,https-server

	gcloud compute instances add-tags NAME_OF_INSTANCE_2 --tags http-server,https-server

	gcloud compute firewall-rules create default-allow-http --direction=INGRESS --priority=1000 --network=default --action=ALLOW --rules=tc
	p:80 --source-ranges=0.0.0.0/0 --target-tags=http-server

	# OPTIONAL
	# you can check your instances from the loadbalancer external ip address only http will work, because of the certification need for https
	http://[EXTERNAL_IP]:80