What is a deployment gate and provide an example?

What is a deployment gate and provide an example?

• A. A physical barrier in the data center.
• B. A policy check that must pass before progressing; e.g., canary success or security scan passing.
• C. A feature flag used for experiments.
• D. A rollback procedure.

Answer: (B)

A deployment gate is a control in the deployment pipeline that blocks moving forward until predefined criteria are met. It enforces policy and quality checks before a release can progress, ensuring issues are caught early. For example, before promoting a release to production, the gate might require the canary deployment to show no critical errors and the security scanner to pass without critical findings. If these conditions are met, the deployment continues; if not, remediation is needed and progression is halted. This isn’t about a physical barrier or a toggle used for experiments, and it isn’t a rollback procedure. A physical barrier isn’t software-related, a feature flag is used to turn features on or off for experimentation, and a rollback procedure is about undoing changes, not gating the pipeline’s progression.

A deployment gate is a control in the deployment pipeline that blocks moving forward until predefined criteria are met. It enforces policy and quality checks before a release can progress, ensuring issues are caught early. For example, before promoting a release to production, the gate might require the canary deployment to show no critical errors and the security scanner to pass without critical findings. If these conditions are met, the deployment continues; if not, remediation is needed and progression is halted.

This isn’t about a physical barrier or a toggle used for experiments, and it isn’t a rollback procedure. A physical barrier isn’t software-related, a feature flag is used to turn features on or off for experimentation, and a rollback procedure is about undoing changes, not gating the pipeline’s progression.