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UUID Use Case

UUID Cluster ID

When you run many clusters (prod, staging, per-region), a UUID cluster ID namespaces their resources and config.

NamespaceCross-env safev4

Version

How many

Uppercase Hyphens Braces { }

Result

Generated locally with the Web Crypto API — nothing leaves your browser.

What Is UUID Cluster ID?

A cluster ID scopes resources so a job or secret from staging cannot be mistaken for prod.
A v4 UUID is a stable, opaque label that does not leak environment details.

How to generate

Generate one v4 UUID per cluster at provisioning.
Inject it as an env var / config label.
Prefix cross-cluster resources with it.

Use Cases

Multi-region deployments.
Staging/prod isolation.
Tenant clusters.

Code Examples

JavaScript

const id = crypto.randomUUID();

Python

import uuid
id = uuid.uuid4()

Frequently Asked Questions

Cluster ID vs region name?

Region name is human; cluster ID is the opaque key used in config and resource names.

Rotate a cluster ID?

Rarely — it is tied to the cluster's lifetime; rotate only on full rebuild.

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