add localstack setup for the lambda stack

distribution/lambda/bin/pond-lambda.ts

@@ -3,11 +3,13 @@ import * as cdk from "aws-cdk-lib";
 import { PondLambdaStack } from "../lib/pond-lambda-stack";
 
 const app = new cdk.App();
+const useLocalStack = app.node.tryGetContext("use_local_stack") === true;
+
 new PondLambdaStack(app, "PondLambdaStack", {
-  /* If you don't specify 'env', this stack will be environment-agnostic.
-   * Account/Region-dependent features and context lookups will not work,
-   * but a single synthesized template can be deployed anywhere. */
-  /* Uncomment the next line to specialize this stack for the AWS Account
-   * and Region that are implied by the current CLI configuration. */
-  // env: { account: process.env.CDK_DEFAULT_ACCOUNT, region: process.env.CDK_DEFAULT_REGION },
+  env: useLocalStack
+    ? { account: "000000000000", region: "us-east-1" }
+    : {
+        account: process.env.CDK_DEFAULT_ACCOUNT,
+        region: process.env.CDK_DEFAULT_REGION,
+      },
 });

distribution/lambda/cdk.context.json

@@ -0,0 +1,3 @@
+{
+  "use_local_stack": true
+}

distribution/lambda/package.json

@@ -10,12 +10,17 @@
     "test": "jest",
     "cdk": "cdk",
     "build:lambda": "cd $(git rev-parse --show-toplevel)/pond/pond-planner && cargo lambda build --release && cd $(git rev-parse --show-toplevel)/pond/pond-duckling && cargo lambda build --release",
-    "deploy": "npm run build:lambda && npm run build && cdk deploy"
+    "deploy": "npm run build:lambda && npm run build && cdk deploy",
+    "start:localstack": "docker run --rm -it -p 4566:4566 -p 4571:4571 localstack/localstack",
+    "cdk-local": "cdklocal",
+    "deploy:local": "npm run build:lambda && npm run build && cdklocal deploy",
+    "destroy:local": "cdklocal destroy"
   },
   "devDependencies": {
     "@types/jest": "^29.5.5",
     "@types/node": "^20.16.10",
-    "aws-cdk": "2.100.0",
+    "aws-cdk": "^2.100.0",
+    "aws-cdk-local": "^2.18.0",
     "esbuild": "^0.24.0",
     "jest": "^29.7.0",
     "ts-jest": "^29.1.1",