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Maintained by Gruntwork.io GitHub tag (latest SemVer) Terraform Version

Google VPC Network Modules

This repo contains modules for creating Virtual Private Cloud (VPC) networks on Google Cloud Platform (GCP) following best practices.

Quickstart

If you want to quickly spin up a VPC Network in GCP, you can run the example that is in the root of this repo. Check out network-management example documentation for instructions.

What's in this repo

This repo has the following folder structure:

  • root: The root folder contains an example of how to deploy a service-agnostic "management" VPC network in GCP. See network-management for the documentation.

  • modules: This folder contains the main implementation code for this Module, broken down into multiple standalone submodules.

    The primary module is:

    Inbound traffic to instances in the network is controlled by "access tiers", a pair of subnetwork and network tags. By defining an appropriate subnetwork and tag for an instance, you'll ensure that traffic to and from the instance is properly restricted. See the Access Tier table for more details.

    There are also several supporting modules that add extra functionality on top of vpc-network:

    • network-peering: Configure peering connections between your networks, allowing you to limit access between environments and reduce the risk of production workloads being compromised.

    • project-host-configuration: Configure your project to be a "host project" whose networks can be shared across multiple projects in the organization as part of a defense-in-depth security strategy, and to allow service-level billing across different teams within your organization.

    • network-firewall: Configures the firewall rules expected by the vpc-network module.

  • examples: This folder contains examples of how to use the submodules.

  • test: Automated tests for the submodules and examples.

What's a VPC?

A Virtual Private Cloud (VPC) network or "network" is a private, isolated section of your cloud infrastructure. Networks are a virtual version of a physically segregated network that control connections between your resources and services both on Google Cloud and outside of it.

Networks are global, and a single network can be used for all of your GCP resources across all regions. Subnetworks, ranges of IP addresses within a single region, can be used to usefully partition your private network IP space.

What's a Module?

A Module is a canonical, reusable, best-practices definition for how to run a single piece of infrastructure, such as a database or server cluster. Each Module is written using a combination of Terraform and scripts (mostly bash) and include automated tests, documentation, and examples. It is maintained both by the open source community and companies that provide commercial support.

Instead of figuring out the details of how to run a piece of infrastructure from scratch, you can reuse existing code that has been proven in production. And instead of maintaining all that infrastructure code yourself, you can leverage the work of the Module community to pick up infrastructure improvements through a version number bump.

Who maintains this Module?

This Module and its Submodules are maintained by Gruntwork. If you are looking for help or commercial support, send an email to [email protected].

Gruntwork can help with:

  • Setup, customization, and support for this Module.
  • Modules and submodules for other types of infrastructure, such as VPCs, Docker clusters, databases, and continuous integration.
  • Modules and Submodules that meet compliance requirements, such as HIPAA.
  • Consulting & Training on AWS, Terraform, and DevOps.

How do I contribute to this Module?

Contributions are very welcome! Check out the Contribution Guidelines for instructions.

How is this Module versioned?

This Module follows the principles of Semantic Versioning. You can find each new release, along with the changelog, in the Releases Page.

During initial development, the major version will be 0 (e.g., 0.x.y), which indicates the code does not yet have a stable API. Once we hit 1.0.0, we will make every effort to maintain a backwards compatible API and use the MAJOR, MINOR, and PATCH versions on each release to indicate any incompatibilities.

License

Please see LICENSE for how the code in this repo is licensed.

Copyright © 2019 Gruntwork, Inc.