{"id":15899096,"url":"https://github.com/neilkuan/cdk-secret-manager-wrapper-layer","last_synced_at":"2026-03-16T02:52:00.693Z","repository":{"id":50621982,"uuid":"518801297","full_name":"neilkuan/cdk-secret-manager-wrapper-layer","owner":"neilkuan","description":"that Lambda layer uses a wrapper script to fetch information from Secrets Manager and create environmental 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`cdk-secret-manager-wrapper-layer` \nthat Lambda layer uses a wrapper script to fetch information from Secrets Manager and create environmental variables.\n\u003e idea from [source](https://github.com/aws-samples/aws-lambda-environmental-variables-from-aws-secrets-manager)\n\n## Updates\n\n**2025-03-02: v2.1.0**\n- Added architecture parameter support for Lambda Layer\n- Updated Python runtime from 3.9 to 3.13\n- Fixed handler name in example code\n- Improved layer initialization and referencing patterns\n- Enhanced compatibility with AWS Lambda ARM64 architecture\n\n## Example\n```ts\nimport { App, Stack, CfnOutput, Duration } from 'aws-cdk-lib';\nimport { Effect, PolicyStatement } from 'aws-cdk-lib/aws-iam';\nimport { Function, Runtime, Code, FunctionUrlAuthType, Architecture } from 'aws-cdk-lib/aws-lambda';\nimport { CfnSecret } from 'aws-cdk-lib/aws-secretsmanager';\nimport { SecretManagerWrapperLayer } from 'cdk-secret-manager-wrapper-layer';\nconst env = {\n  region: process.env.CDK_DEFAULT_REGION,\n  account: process.env.CDK_DEFAULT_ACCOUNT,\n};\nconst app = new App();\nconst stack = new Stack(app, 'testing-stack', { env });\n\n/**\n * Example create an Secret for testing.\n */\nconst secret = new CfnSecret(stack, 'MySecret', {\n  secretString: JSON.stringify({\n    KEY1: 'VALUE1',\n    KEY2: 'VALUE2',\n    KEY3: 'VALUE3',\n  }),\n});\n\nconst lambdaArchitecture = Architecture.X86_64;\n\nconst layer = new SecretManagerWrapperLayer(stack, 'SecretManagerWrapperLayer', {\n  lambdaArchitecture,\n});\n\nconst lambda = new Function(stack, 'fn', {\n  runtime: Runtime.PYTHON_3_13,\n  code: Code.fromInline(`\nimport os\ndef handler(events, contexts):\n    env = {}\n    env['KEY1'] = os.environ.get('KEY1', 'Not Found')\n    env['KEY2'] = os.environ.get('KEY2', 'Not Found')\n    env['KEY3'] = os.environ.get('KEY3', 'Not Found')\n    return env\n    `),\n  handler: 'index.handler',\n  layers: [layer.layerVersion],\n  timeout: Duration.minutes(1),\n  /**\n   * you need to define this 4 environment various.\n   */\n  environment: {\n    AWS_LAMBDA_EXEC_WRAPPER: '/opt/get-secrets-layer',\n    SECRET_REGION: stack.region,\n    SECRET_ARN: secret.ref,\n    API_TIMEOUT: '5000',\n  },\n  architecture: lambdaArchitecture,\n});\n\n/**\n * Add Permission for lambda get secret value from secret manager.\n */\nlambda.role!.addToPrincipalPolicy(\n  new PolicyStatement({\n    effect: Effect.ALLOW,\n    actions: ['secretsmanager:GetSecretValue'],\n    // Also you can use find from context.\n    resources: [secret.ref],\n  }),\n);\n\n/**\n * For Testing.\n */\nconst FnUrl = lambda.addFunctionUrl({\n  authType: FunctionUrlAuthType.NONE,\n});\n\nnew CfnOutput(stack, 'FnUrl', {\n  value: FnUrl.url,\n});\n```\n\n## Testing \n```bash\n# ex: curl https://sdfghjklertyuioxcvbnmghj.lambda-url.us-east-1.on.aws/\ncurl ${FnUrl}\n{\"KEY2\":\"VALUE2\",\"KEY1\":\"VALUE1\",\"KEY3\":\"VALUE3\"}\n```","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fneilkuan%2Fcdk-secret-manager-wrapper-layer","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fneilkuan%2Fcdk-secret-manager-wrapper-layer","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fneilkuan%2Fcdk-secret-manager-wrapper-layer/lists"}