feat(aws-elasticache): support cache usage limits (#73)

* chore(deps): upgrade cdk version (#72)

* wip

* unit test

* add integ

* wip

* update

* feat!: adds Node.js subpath exports (#75)

* feat: get a list of solutions

* feat: generate main barrel

* feat: adds exports

* chore: projen synth

* feat: add root export

* chore: projen synth

* refactor: use libdir

* refactor: into a component

* docs: use cases

* refactor: solutions prop

* refactor: generateBarrel

* refactor: generateSubPathExports

* docs: Construct Bootstrap

* refactor: rename for clarity

* refactor: rename for clarity

* update

* fix

* fix render method

* fix any

* fix validation

* fix default labels

Signed-off-by: Yuki Matsuda <[email protected]>

* rebuild

---------

Signed-off-by: Yuki Matsuda <[email protected]>
Co-authored-by: Kenta Goto (k.goto) <[email protected]>
Co-authored-by: Roman <[email protected]>

Author: 3 people

API.md

@@ -259,6 +259,28 @@ const endpointAddress = serverlessCache.endpointAddress;
 const endpointPort = serverlessCache.endpointPort;
 ```
 
+### Cache usage limits
+
+You can choose to configure a maximum usage on both cache data storage and ECPU/second for your cache to control cache costs.
+Doing so will ensure that your cache usage never exceeds the configured maximum.
+
+For more infomation, see [Setting scaling limits to manage costs](https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/Scaling.html#Pre-Scaling).
+
+```ts
+declare const vpc: ec2.Vpc;
+
+const serverlessCache = new ServerlessCache(this, 'ServerlessCache', {
+  engine: Engine.VALKEY,
+  vpc,
+  cacheUsageLimits: {
+    // cache data storage limits (GB)
+    dataStorage: DataStorage.gb({ minimum: 1, maximum: 5000 }), // minimum: 1GB, maximum: 5000GB
+    // ECPU limits (ECPU/second)
+    ecpuPerSecond: ECPUPerSecond.of({ minimum: 1000, maximum: 15000000 }), // minimum: 1000, maximum: 15000000
+  },
+});
+```
+
 ### Snapshots and restore
 
 You can enable automatic backups for serverless cache.