Add Key deprecation policy.

governance/policies/settings-policy.json

@@ -9,6 +9,10 @@
             "description": "Key Management Service",
             "version": "1.0.0",
             "debug": true
+          },
+          "keyRotation": {
+            "gracePeriodDays": 2,
+            "ttlDays": 7
           }
         }
       }

src/policies/Settings.ts

@@ -11,9 +11,16 @@ export interface IService {
   debug: boolean;
 }
 
+export interface IKeyRotation {
+  gracePeriodDays: number;
+  ttlDays: number;
+}
+
+
 // Define the ISettings interface
 export interface ISettings {
   service: IService;
+  keyRotation: IKeyRotation;
 }
 
 export class Settings {
@@ -34,6 +41,10 @@ export class Settings {
         version: "1.0.0",
         debug: false,
       },
+      keyRotation: {
+        gracePeriodDays: 2,
+        ttlDays: 7,
+      },
     };
   }