Terraform deploy webserver LB to staging and production

This is sample of how to deploy a simple web server that is serving behind a load balancer using Terraform to staging or production environment in GCP.

Authentication to GCP

• Install Google Cloud CLI gcloud on your computer by following this documentation (https://cloud.google.com/sdk/docs/install)
• Run the following command to authenticate terraform

gcloud auth application-default login

Running terraform

• Install terraform (https://developer.hashicorp.com/terraform/downloads)

• Change project_id value inside environments/staging/staging.tfvars and environments/production/production.tfvars with your project ID.

• Initialize terraform

terraform init

• Create terraform workspace for staging and production

terraform workspace new staging
terraform workspace new production

• Deploy to staging

terraform workspace select staging
terraform plan -var-file=environments/staging/staging.tfvars
terraform apply -var-file=environments/staging/staging.tfvars

• Deploy to production

terraform workspace select production
terraform plan -var-file=environments/production/production.tfvars
terraform apply -var-file=environments/production/production.tfvars

Reference

• https://registry.terraform.io/providers/hashicorp/google/latest/docs/guides/getting_started
• https://developer.hashicorp.com/terraform/cli