This example creates an HTTPS load balancer to forward traffic to a custom URL map. The URL map sends traffic to the region closest to you with static assets being served from a Cloud Storage bucket. The TLS key and certificate is generated by Terraform using the TLS provider.

Figure 1. diagram of Google Cloud resources

[[ `basename $PWD` != multi-backend-multi-mig-bucket-https-lb ]] && cd examples/multi-backend-multi-mig-bucket-https-lb/

1. Install Terraform if it is not already installed (visit terraform.io for other distributions):

1. Set the project, replace YOUR_PROJECT with your project ID:

PROJECT=YOUR_PROJECT

gcloud config set project ${PROJECT}

2. Configure the environment for Terraform:

[[ $CLOUD_SHELL ]] || gcloud auth application-default login
export GOOGLE_PROJECT=$(gcloud config get-value project)

terraform init
terraform apply

1. Open URL of load balancer in browser:

echo http://$(terraform output load-balancer-ip)| sed 's/"//g'

You should see the GCP logo and instance details from the group closest to your geographical region.

2. Open URL to route mapped to us-west1 instance group:

echo http://$(terraform output load-balancer-ip)/group1/ | sed 's/"//g'

You should see the GCP logo and instance details from the group in us-west1.

3. Open URL to route mapped to us-central1 instance group:

echo http://$(terraform output load-balancer-ip)/group2/ | sed 's/"//g'

You should see the GCP logo and instance details from the group in us-central1.

4. Open URL to route mapped to us-east1 instance group:

echo http://$(terraform output load-balancer-ip)/group3/ | sed 's/"//g'

You should see the GCP logo and instance details from the group in us-east1.

1. Remove all resources created by terraform:

terraform destroy