Create and Manage Cloud Resources

Task 1: Create a project jumphost instance

You will use this instance to perform maintenance for the project.

Requirements:

• Name the instance nucleus-jumphost.

• Use an f1-micro machine type.

• Use the default image type (Debian Linux).

gcloud compute instances create nucleus-jumphost \
    --machine-type f1-micro \
    --zone us-east1-b

Task 2: Create a Kubernetes service cluster

The team is building an application that will use a service running on Kubernetes.

You need to:

• Create a cluster (in the us-east1-b zone) to host the service.

gcloud container clusters create service-cluster \
    --zone us-east1-b

gcloud container clusters get-credentials service-cluster \
    --zone us-east1-b

• Use the Docker container hello-app (gcr.io/google-samples/hello-app:2.0) as a placeholder; the team will replace the container with their own work later.

kubectl create deployment hello-server --image=gcr.io/google-samples/hello-app:2.0

• Expose the app on port 8080.

kubectl expose deployment hello-server --type=LoadBalancer --port 8080

Task 3: Set up an HTTP load balancer

You will serve the site via nginx web servers, but you want to ensure that the environment is fault-tolerant. Create an HTTP load balancer with a managed instance group of 2 nginx web servers. Use the following code to configure the web servers; the team will replace this with their own configuration later.

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

You need to:

• Create an instance template.

gcloud compute instance-templates create nginx-template \
--metadata-from-file startup-script=startup.sh

• Create a target pool.

gcloud compute target-pools create nginx-pool

• Create a managed instance group.

gcloud compute instance-groups managed create nginx-group \
--base-instance-name nginx \
--size 2 \
--template nginx-template \
--target-pool nginx-pool 

gcloud compute instances list

• Create a firewall rule to allow traffic (80/tcp).

gcloud compute firewall-rules create www-firewall \
--allow tcp:80 

gcloud compute forwarding-rules create nginx-lb \
--region us-east1 \
--ports=80 \
--target-pool nginx-pool

gcloud compute forwarding-rules list

• Create a health check.

gcloud compute http-health-checks create http-basic-check

gcloud compute instance-groups managed \
set-named-ports nginx-group \
--named-ports http:80

• Create a backend service, and attach the managed instance group.

gcloud compute backend-services create nginx-backend \
--protocol HTTP --http-health-checks http-basic-check --global

gcloud compute backend-services add-backend nginx-backend \
--instance-group nginx-group \
--instance-group-zone us-east1-b \
--global

• Create a URL map, and target the HTTP proxy to route requests to your URL map.

gcloud compute url-maps create web-map \
--default-service nginx-backend 

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

• Create a forwarding rule.

gcloud compute forwarding-rules create http-content-rule\
--global \
--target-http-proxy http-lb-proxy \
--ports 80 

gcloud compute forwarding-rules list