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DevOps & Automation · Intermediate

Ephemeral Environment

A short-lived, automatically created environment for testing a branch or pull request, destroyed after use.

Definition

Also called preview or review environments, they give reviewers a live deployment of each change and avoid shared staging contention. They rely on IaC and containers for fast provisioning.

Example

Each pull request gets a namespace and URL like pr-123.dev.example.com, torn down on merge.

Exam tip

Ephemeral environments require fully automated provisioning; manual setup defeats the purpose.

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