GCP Networking

Design, implement, and secure network infrastructure on Google Cloud Platform.

When to Use

• Building VPC networks for new GCP projects or multi-project architectures
• Configuring firewall rules to control traffic between services
• Setting up Cloud NAT for outbound internet access from private instances
• Deploying load balancers for HTTP(S), TCP/UDP, or internal traffic
• Implementing Private Service Connect or Shared VPC

Network change and fragment scope

Verify exact project/network/region, existing routes/firewalls and recovery access before mutations; broad internal 10.0.0.0/8 allow rules do not establish segmentation. Scope ingress to required targets and source identities. Confirm health-check scope and backend membership: the internal-LB fragment needs a regional health check/backend not created by the preceding global example. Terraform blocks are excerpts; semicolons in compact multi-attribute blocks must be expanded into valid HCL newlines before validation. NAT max-port settings depend on dynamic allocation mode; verify installed CLI constraints. No certificate provisioning-time guarantee or compliance follows from these examples.

Prerequisites