LocalStack provides an easy-to-use test/mocking framework for developing Cloud applications.

Overview • Install • Example • Run • Usage • Changelog • Contributing
–
📖 Docs • 💻 Pro version • ☑️ Feature coverage • 📢 Announcements

---

Overview

LocalStack 💻 is a cloud service emulator that runs in a single container on your laptop or in your CI environment. With LocalStack, you can run your AWS applications or Lambdas entirely on your local machine without connecting to a remote cloud provider! Whether you are testing complex CDK applications or Terraform configurations, or just beginning to learn about AWS services, LocalStack helps speed up and simplify your testing and development workflow.

LocalStack supports a growing number of AWS services, like AWS Lambda, S3, Dynamodb, Kinesis, SQS, SNS, and many more! The Pro version of LocalStack supports additional APIs and advanced features. You can find a comprehensive list of supported APIs on our ☑️ Feature Coverage page.

LocalStack also provides additional features to make your life as a cloud developer easier! Check out LocalStack's Cloud Developer Tools for more information.

Requirements

• python (Python 3.6 up to 3.9 supported)
• pip (Python package manager)
• Docker

Installing

The easiest way to install LocalStack is via pip:

pip install localstack

Note: Please do not use sudo or the root user - LocalStack should be installed and started entirely under a local non-root user. If you have problems with permissions in MacOS X Sierra, install with pip install --user localstack

It installs the localstack-cli which is used to run the Docker image that hosts the LocalStack runtime.

Example

Start LocalStack inside a Docker container by running:

 % localstack start -d

     __                     _______ __             __
    / /   ____  _________ _/ / ___// /_____ ______/ /__
   / /   / __ \/ ___/ __ `/ /\__ \/ __/ __ `/ ___/ //_/
  / /___/ /_/ / /__/ /_/ / /___/ / /_/ /_/ / /__/ ,<
 /_____/\____/\___/\__,_/_//____/\__/\__,_/\___/_/|_|

 💻 LocalStack CLI 0.13.0.11

[20:22:20] starting LocalStack in Docker mode 🐳
[20:22:21] detaching

You can query the status of respective services on LocalStack by running:

% localstack status services
┏━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━┓
┃ Service                  ┃ Status      ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━┩
│ acm                      │ ✔ available │
│ apigateway               │ ✔ available │
│ cloudformation           │ ✔ available │
│ cloudwatch               │ ✔ available │
│ config                   │ ✔ available │
│ dynamodb                 │ ✔ available │
...

To use SQS, a fully managed distributed message queuing service, on LocalStack run:

% awslocal sqs create-queue --queue-name sample-queue
{
    "QueueUrl": "http://localhost:4566/000000000000/sample-queue"
}

Learn more about LocalStack AWS services and using them with LocalStack's awslocal CLI.

Running

You can run LocalStack through the following options:

• LocalStack CLI
• Docker
• Docker Compose
• Helm

Usage

To start using LocalStack, check out our documentation on docs.localstack.cloud.

• LocalStack Configuration
• LocalStack in CI
• LocalStack Integrations
• LocalStack Tools
• Understanding LocalStack
• Troubleshoot

To use LocalStack with a graphical user interface, you can use the following UI clients:

• Commandeer desktop app
• DynamoDB Admin Web UI

Change Log

Please refer to CHANGELOG.md to see the complete list of changes for each release.

Contributing

If you are interested in contributing to LocalStack:

• Start by reading our contributing guide.
• Check out our developer guide.
• Look through our roadmap.
• Navigate our codebase and open issues.

We are thankful for all the contributions and feedback we receive.

Contributors

We are thankful to all the people who have contributed to this project.

Backers

We are also grateful to all our backers who have donated to the project. You can become a backer on Open Collective.

Sponsors

You can also support this project by becoming a sponsor on Open Collective. Your logo will show up here along with a link to your website.

License

Copyright (c) 2017-2021 LocalStack maintainers and contributors.

Copyright (c) 2016 Atlassian and others.

This version of LocalStack is released under the Apache License, Version 2.0 (see LICENSE.txt). By downloading and using this software you agree to the End-User License Agreement (EULA).

We build on a number of third-party software tools, including the following:

Third-Party software	License
Python/pip modules:
airspeed	BSD License
amazon_kclpy	Amazon Software License
boto3	Apache License 2.0
coverage	Apache License 2.0
docopt	MIT License
elasticsearch	Apache License 2.0
flask	BSD License
flask_swagger	MIT License
jsonpath-rw	Apache License 2.0
moto	Apache License 2.0
requests	Apache License 2.0
subprocess32	PSF License
Node.js/npm modules:
kinesalite	MIT License
Other tools:
Elasticsearch	Apache License 2.0
local-kms	MIT License
kinesis-mock	MIT License

Announcements

• 2021-09-24: We're hiring again! - We are expanding our team, and looking for full-stack Python engineers, technical writers, and more, to help us take LocalStack to the next level! Check out our jobs board!
• 2021-04-24: We're hiring! - If you love what we're doing at LocalStack, check out our jobs board and shoot us an email with your CV/background/portfolio. We look forward to hearing from you!
• 2020-12-28: Check out the LocalStack Pro feature roadmap here: https://roadmap.localstack.cloud - please help us prioritize our backlog by creating and upvoting feature requests. Looking forward to getting your feedback!
• 2020-09-15: A major (breaking) change has been merged in PR #2905 - starting with releases after v0.11.5, all services are now exposed via the edge service (port 4566) only! Please update your client configurations to use this new endpoint.
• 2019-10-09: LocalStack Pro is out! We're incredibly excited to announce the launch of LocalStack Pro - the enterprise version of LocalStack with additional APIs and advanced features. Check out the free trial at https://localstack.cloud
• 2018-01-10: Help wanted! Please fill out this survey to support a research study on the usage of Serverless and Function-as-a-Service (FaaS) services, conducted at the Chalmers University of Technology. The survey only takes 5-10 minutes of your time. Many thanks for your participation!!
  • The result from this study can be found here
• 2017-08-27: We need your support! LocalStack is growing fast, we now have thousands of developers using the platform regularly. Last month we have recorded a staggering 100k test runs, with 25k+ DynamoDB tables, 20k+ SQS queues, 15k+ Kinesis streams, 13k+ S3 buckets, and 10k+ Lambda functions created locally - for 0$ costs (more details to be published soon). Bug and feature requests are pouring in, and we now need some support from you to keep the open-source version actively maintained. Please check out Open Collective and become a backer or supporter of the project today! Thanks, everybody for contributing. ♥
• 2017-07-20: Please note: Starting with version 0.7.0, the Docker image will be pushed and kept up to date under the new name localstack/localstack. (This means that you may have to update your CI configurations.) Please refer to the updated End-User License Agreement (EULA) for the new versions. The old Docker image (atlassianlabs/localstack) is still available but will not be maintained any longer.