GCP Notes
Cloud Shell - basic commands
List active accounts
gcloud auth list
List project ID
gcloud config list project
Set a default compute zone
gcloud config set compute/zone us-east1-b // set default compute zone to us-central-a
Set a default region
gcloud config set compute/region us-central1
Create a web server instances
gcloud compute instances create [INSTANCE-NAME] \ --image-family debian-9
--image-project debian-cloud \
--zone us-central1-a \
--tags network-lb-tag \
--metadata startup-script="#! /bin/bash
sudo apt-get update
sudo apt-get install apache2 -y
sudo service apache2 restart
`echo '<!doctype html>
Create a firewall rule to allow external traffic to the VM instances
gcloud compute firewall-rules create www-firewall-network-lb \ --target-tags network-lb-tag --allow tcp:80``
List your instances (with external IP)
gcloud compute instances list
Check your instances
curl http://[IP-ADDRESS]
** Set up Network and HTTP Load Balancers**
Create a static external IP address for you load balancer
gcloud compute addresses create network-lb-ip-1
--region us-central1
Add a legacy HTTP heart check resource:
gcloud compute http-health-checks create basic-check
**
**Add the target pool (the same region as you instances) ****
gcloud compute target-pools create www-pool
--region us-central1 --http-health-check basic-check
Add the instances to the pool:
gcloud compute target-pools add-instances www-pool
--instances [NAME-1], [NAME-2], [NAME-3]
**
Add a forwarding rule for pool**
gcloud compute forwarding-rules create www-rule
--region us-central1
--ports 80
--address network-lb-ip-1
--target-pool www-pool
**Test Sending traffic to your instances ** View external IP address to www-rule forwarding gcloud compute forwarding-rules describe www-rule --region us-central1
Curl test
while true; do curl -m1 [IP_ADDRESS]; done
**
CREATE an HTTPS load balancer**
Create load balancer template
gcloud compute instance-templates create lb-backend-template
--region=default
--network=default
--subnet=default
--tags=allow-health-check
--image-family=debian-9
--image-project=debian-cloud
--metadata=startup-script=“#! /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”
Create a managed instance group based on the template (https://cloud.google.com/compute/docs/instance-groups) **
gcloud compute instance-groups managed create lb-backend-group
--template=lb-backend-template --size=2 --zone=us-central1-a
**
Create the fw-allow-health-check firewall rule. This is an ingress rule that allows traffic from the Google Cloud health checking systems (130.211.0.0/22 and 35.191.0.0/16)
gcloud compute firewall-rules create allow-tcp-rule-585
--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
**Set up global static external IP address **
gcloud compute addresses create lb-ipv4-1
--ip-version=IPV4
--global
**Check static IP address **
gcloud compute addresses describe lb-ipv4-1
--format="get(address)"
--global
Create a health check for the load balancer:
gcloud compute health-checks create http http-basic-check
--port 80
Create a backend service:
gcloud compute backend-services create web-backend-service
--protocol=HTTP
--port-name=http
--health-checks=http-basic-check
--global
Add your instance group as the backend to the backend service:
gcloud compute backend-services add-backend web-backend-service
--instance-group=lb-backend-group
--instance-group-zone=us-central1-a
--global
Create a URL map to route the incoming requests to the default backend service:
gcloud compute url-maps create web-map-http
--default-service web-backend-service
Create a target HTTP proxy to route requests to your URL map:
gcloud compute target-http-proxies create http-lb-proxy
--url-map web-map-http
Create a global forwarding rule to route incoming requests to the proxy:
gcloud compute forwarding-rules create http-content-rule
--address=lb-ipv4-1
--global
--target-http-proxy=http-lb-proxy
--ports=80
Create Bucket gsutil mb -p [PROJECT_ID] gs://[BUCKET_NAME]
Pub/Sub topics gcloud pubsub topics create myTopic
Deploy your function
gcloud functions deploy helloWorld
--stage-bucket [BUCKET_NAME]
--trigger-topic hello_world
--runtime nodejs8
Verify the status of the function. gcloud functions describe helloWorld
Test the function DATA=$(printf 'Hello World!'|base64) && gcloud functions call helloWorld --data '{"data":"'$DATA'"}
View function logs gcloud functions logs read helloWorld