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Cache Key - CI/CD用語集の定義

cache keyは、キャッシュが値を格納・取得する際に使う一意の識別子です。CIでは通常、lockfileやrunnerのOSといった入力のハッシュであり、広すぎるキーは誤ったデータを配信し、狭すぎるキーは決してヒットしません。

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