Skip to main content

cdk-secret-manager-wrapper-layer

that Lambda layer uses a wrapper script to fetch information from Secrets Manager and create environmental variables.

idea from source

Updates

2025-03-02: v2.1.0

  • Added architecture parameter support for Lambda Layer
  • Updated Python runtime from 3.9 to 3.13
  • Fixed handler name in example code
  • Improved layer initialization and referencing patterns
  • Enhanced compatibility with AWS Lambda ARM64 architecture

Example

import { App, Stack, CfnOutput, Duration } from 'aws-cdk-lib';
import { Effect, PolicyStatement } from 'aws-cdk-lib/aws-iam';
import { Function, Runtime, Code, FunctionUrlAuthType, Architecture } from 'aws-cdk-lib/aws-lambda';
import { CfnSecret } from 'aws-cdk-lib/aws-secretsmanager';
import { SecretManagerWrapperLayer } from 'cdk-secret-manager-wrapper-layer';
const env = {
  region: process.env.CDK_DEFAULT_REGION,
  account: process.env.CDK_DEFAULT_ACCOUNT,
};
const app = new App();
const stack = new Stack(app, 'testing-stack', { env });

/**
 * Example create an Secret for testing.
 */
const secret = new CfnSecret(stack, 'MySecret', {
  secretString: JSON.stringify({
    KEY1: 'VALUE1',
    KEY2: 'VALUE2',
    KEY3: 'VALUE3',
  }),
});

const lambdaArchitecture = Architecture.X86_64;

const layer = new SecretManagerWrapperLayer(stack, 'SecretManagerWrapperLayer', {
  lambdaArchitecture,
});

const lambda = new Function(stack, 'fn', {
  runtime: Runtime.PYTHON_3_13,
  code: Code.fromInline(`
import os
def handler(events, contexts):
    env = {}
    env['KEY1'] = os.environ.get('KEY1', 'Not Found')
    env['KEY2'] = os.environ.get('KEY2', 'Not Found')
    env['KEY3'] = os.environ.get('KEY3', 'Not Found')
    return env
    `),
  handler: 'index.handler',
  layers: [layer.layerVersion],
  timeout: Duration.minutes(1),
  /**
   * you need to define this 4 environment various.
   */
  environment: {
    AWS_LAMBDA_EXEC_WRAPPER: '/opt/get-secrets-layer',
    SECRET_REGION: stack.region,
    SECRET_ARN: secret.ref,
    API_TIMEOUT: '5000',
  },
  architecture: lambdaArchitecture,
});

/**
 * Add Permission for lambda get secret value from secret manager.
 */
lambda.role!.addToPrincipalPolicy(
  new PolicyStatement({
    effect: Effect.ALLOW,
    actions: ['secretsmanager:GetSecretValue'],
    // Also you can use find from context.
    resources: [secret.ref],
  }),
);

/**
 * For Testing.
 */
const FnUrl = lambda.addFunctionUrl({
  authType: FunctionUrlAuthType.NONE,
});

new CfnOutput(stack, 'FnUrl', {
  value: FnUrl.url,
});

Testing

# ex: curl https://sdfghjklertyuioxcvbnmghj.lambda-url.us-east-1.on.aws/
curl ${FnUrl}
{"KEY2":"VALUE2","KEY1":"VALUE1","KEY3":"VALUE3"}

Metadata

Release files for cdk-secret-manager-wrapper-layer 2.1.323

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for cdk-secret-manager-wrapper-layer 2.1.323
File Size Uploaded Provenance Actions
cdk_secret_manager_wrapper_layer-2.1.323.tar.gz 43.6 kB Without provenance Details for cdk_secret_manager_wrapper_layer-2.1.323.tar.gz

Built distribution (wheel)

Table of built distributions (wheels) for cdk-secret-manager-wrapper-layer 2.1.323
File Interpreter ABI Platform Actions
cdk_secret_manager_wrapper_layer-2.1.323-py3-none-any.whl Python 3 none any Details for cdk_secret_manager_wrapper_layer-2.1.323-py3-none-any.whl

Total release size: 85.8 kB

Release files / cdk_secret_manager_wrapper_layer-2.1.323.tar.gz

Download URL cdk_secret_manager_wrapper_layer-2.1.323.tar.gz
Size 43.6 kB
Tags Source
SHA-256 checksum
How to use checksums
95968443b1522849e79acc82a68f2f8cb42f18e0adffaed43497e0630353a0f8
BLAKE2b-256 checksum
How to use checksums
277f83e17782428ca4e131c83d84b7185612d507307d86d1085f009d79ce29d8
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via twine/6.1.0 CPython/3.15.2

Release files / cdk_secret_manager_wrapper_layer-2.1.323-py3-none-any.whl

Download URL cdk_secret_manager_wrapper_layer-2.1.323-py3-none-any.whl
Size 42.1 kB
Tags Python 3
SHA-256 checksum
How to use checksums
60e04832b516ebe36e954964b1b25265f2ffab83743f59aa8e5f910c7ef3a95e
BLAKE2b-256 checksum
How to use checksums
bbbbeed2c9bfbeb0be5fe87664819d49b77ec9901ca924dd5fccaf660bd2afab
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No
Uploaded via twine/6.1.0 CPython/3.15.2

Security for cdk-secret-manager-wrapper-layer 2.1.323

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

No provenance found

None of the files in this release were uploaded with provenance metadata.

A note on package security

PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.

To learn more about protecting yourself from malicious actors, visit our package security documentation.

Release history Release notifications | RSS feed

This release

2.1.323 This release

2 release files No provenance

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page