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FieldValue
CategoryBEST-PRAC-4
PlatformGitLab CI
SeverityLOW
Auto-fix✗

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What the check does

Flags a job that declares an environment: (a deployment) but no resource_group:.

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Why it matters

Without a resource_group, two pipelines can run the same deployment job at the same time and race on the target — producing interleaved or half-applied deploys and inconsistent state. A resource group serializes jobs so only one runs against the environment at a time. This is the GitLab analog of the GitHub Actions missing-concurrency check. 
deploy:
  environment: { name: production }
  resource_group: production   # ← serialize deploys to production
  script: [./deploy.sh]