» Vault Enterprise Namespaces

» Overview

Many organizations implement Vault as a "service", providing centralized management for teams within an organization while ensuring that those teams operate within isolated environments known as tenants.

There are two common challenges when implementing this architecture in Vault:

Tenant Isolation

Frequently teams within a VaaS environment require strong isolation from other users in their policies, secrets, and identities. Tenant isolation is typically a result of compliance regulations such as GDPR, though it may be necessitated by corporate or organizational infosec requirements.

Self-Management

As new tenants are added, there is an additional human cost in the management overhead for teams. Given that tenants will likely have different policies and request changes at a different rate, managing a multi-tenant environment can become very difficult for a single team as the number of tenants within that organization grow.

'Namespaces' is a set of features within Vault Enterprise that allows Vault environments to support Secure Multi-tenancy (or SMT) within a single Vault infrastructure. Through namespaces, Vault administrators can support tenant isolation for teams and individuals as well as empower delegated administrators to manage their own tenant environment.

» Architecture

Namespaces are isolated environments that functionally exist as "Vaults within a Vault." They have separate login paths and support creating and managing data isolated to their namespace. This data includes the following:

  • Secret Engines
  • Auth Methods
  • Policies
  • Identities (Entities, Groups)
  • Tokens

Rather than rely on Vault system admins, namespaces can be managed by delegated admins who can be prescribed administration rights for their namespace. These delegated admins can also create their own child namespaces, thereby prescribing admin rights on a subordinate group of delegate admins.

Child namespaces can share policies from their parent namespaces. For example, a child namespace may refer to parent identities (entities and groups) when writing policies that function only within that child namespace. Similarly, a parent namespace can have policies asserted on child identities.

» Setup and Best Practices

A deployment guide is available to help guide you through the deployment and administration of namespaces, and contains examples on architecture for using namespaces to implement SMT across your organization.