Single VPC

As explained in Google Anthos in Action

A single VPC design places resources in one virtual private cloud and provides one flat network space.

A single VPC places Anthos resources in one GCP project and one flat network. It is the simplest topology for small environments and can also serve multiple teams sharing that project. section 10.1.1

Manage connectivity and assess the main trade-offs through these architectural controls:

• Control network-layer traffic with VPC firewall rules. section 10.1.1
• Restrict traffic inside Kubernetes with NetworkPolicies. section 10.1.1
• Apply service-level authentication and authorization through Anthos Service Mesh policies. section 10.1.1
• Simplify network administration because resources communicate across the flat network when security rules allow it. section 10.1.1
• Plan for growth because large implementations can encounter VPC limits and may require separate projects or more complex VPC designs. section 10.1.1

Small GCP project

A small Anthos environment contained in one GCP project can place all resources in one VPC, allowing teams and platform resources to communicate without additional network-connection configuration. section 10.1.1

Figure 10.2 Single VPC architecture in GCP

Use the architecture figure to inspect how a single VPC organizes resources within one flat GCP network. section 10.1.1

How Google Anthos in Action covers it

How deep it goes

Explains flat-network behavior, layered security, administration benefits, and scalability limits without detailing quota values.

Examples

Uses a small single-project Anthos environment with multiple teams sharing resources on one VPC.

What you can do after

Evaluate whether a simple flat network fits an environment and identify when scale requires separate projects or VPC designs.

How it connects

Connects VPC firewalls, Kubernetes NetworkPolicies, Anthos Service Mesh, GCP projects, shared VPCs, and peered VPCs.

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Related concepts

• flat networkproduces · A flat network is a network in which connected endpoints communicate within a shared address space without hierarchical network segmentation.

This explainer was generated by Manning's knowledge graph from the text of Google Anthos in Action. The section links point to the parts of the book it draws on.