LocalStack

Are you an open source developer with a community project that could benefit from using LocalStack for development and testing on your local machine and/or in CI? Great news! LocalStack offers free licenses for individuals and teams who meet some basic qualifications. Learn more here: https://lnkd.in/gZihxC9K

What if I told you that you could take a production bug report, hand it to Claude Code with the LocalStack MCP server and it would: 1. Deploy to application to LocalStack 2. Reproduce the failure from App Inspector traces 3. Fix the broken pipeline 4. Prove the fix ...all without touching an AWS account? The best part? Total cost $4.60 in tokens and 17 minutes. Get the details here: https://lnkd.in/gZcqQxVm

When we talk about AI agent sandboxes, most developers think of tools like Daytona or Modal. These are code execution sandboxes that allow agents to run safely, but it doesn't mean that they have the infrastructure that they need to actually run. LocalStack is a different kind of sandbox for AI. It's an infrastructure sandbox, which means that it provides the full emulated infrastructure to ensure your agent can build, test and iterate *as if it's on the real cloud* but without worrying about causing real-cloud problems. Want to learn more? Check out this post from Kiah: https://lnkd.in/ecWjkfAJ

Missed our July Community Meetup? Learn how to make your local cloud environments reproducible with: ✅ Persistence ✅ Cloud Pods ✅ State files ✅ MCP + AI for managing cloud state Perfect for debugging, onboarding, collaboration, and CI. 📽️ https://lnkd.in/gPM-DFE6

LocalStack as an AI Sandbox AI agents are getting capable enough to provision infrastructure and execute code with real consequences. Here's a taxonomy of AI sandboxes and where LocalStack fits as the missing cloud infrastructure layer. 🧩 ☁️ https://lnkd.in/ecWjkfAJ

Dangling cloud resources are the silent killer of AWS budgets and CI/CD pipelines. When an integration test fails mid-run in CI, the teardown step often gets skipped. Idle S3 buckets, orphan NAT Gateways, and forgotten database instances sit in your staging account, burning money until the end of the month. Beyond the cost, provisioning live AWS resources in CI adds 10 to 15 minutes of delay to every PR. 😵💫 The fix? Run your AWS integration tests directly inside the CI runner container using LocalStack. Why platform teams make the switch to LocalStack: 🤯 Zero dangling costs When the CI runner finishes, the Docker container dies. No lingering infrastructure, no surprise bills. 🏃♀️➡️ 10x faster pipelines Test full Terraform, CDK, or SAM stacks instantly without waiting on AWS API provisioning. 🍻 Total test isolation Run parallel PR tests simultaneously without resource naming collisions or AWS rate limits. Stop letting broken pipeline teardowns inflate your cloud bill. Ephemeral integration testing belongs inside Docker 🐳 , not live AWS. https://lnkd.in/gbqdxz4A

Learn how to test Service Control Policies with LocalStack: ☁️ build a local AWS org ☁️ attach guardrails to the sandbox account ☁️ read denial messages naming the exact policy ☁️ simulate SCP conditions before reaching production https://lnkd.in/gQCb8UET

"It works on my machine" is the biggest lie in cloud development. 🤫 You write the code, mock the AWS SDK, and watch your unit tests pass with flying colors. Then you merge, deploy to staging, and it immediately breaks. Why? 🤔 Because mocking AWS services locally does not replicate real cloud behavior. A mocked SQS queue does not care about visibility timeouts. A mocked DynamoDB table does not throw provisioned throughput exceptions or mimic stream delays. Mocks only test the happy paths you expect, not the complex realities of how cloud infrastructure actually behaves. The fix is to stop mocking AWS and start emulating it. 💪 Replace fragile SDK mocks with a fully emulated AWS environment via LocalStack, running directly in your local Docker container. Here's why this shifts the needle for engineering teams: 🧪 Run real integration tests Test actual event-driven architectures, like Lambda triggers and SNS fan-outs, directly on your laptop. ⏰️ Catch edge cases early Find IAM permission errors, payload limits, and state mismatches before they ever hit your CI/CD pipeline. 🏃♀️➡️ Reclaim developer velocity Run complete infrastructure tests on every single commit without waiting 15 minutes for a shared cloud staging environment to update. Bridge the gap between local development and production reality. Stop testing against a mock, and start testing against the cloud with LocalStack.

No product launch today. Just a reminder that some birthdays are, statistically speaking, more important than others. Happy Leo season. 🦁🎉

In case you missed our latest live demo session, the recording is now available! Recreating the exact state of a cloud application is one of the biggest challenges in development. Whether you're debugging an issue, onboarding a teammate, or trying to reproduce a CI failure, having the right environment matters. In this session, we cover how to: • Persist your LocalStack state across restarts • Snapshot and share environments with Cloud Pods • Restore preconfigured services and data • Improve collaboration and onboarding with reproducible local environments • Use LocalStack's new MCP integration to inspect, manage, and automate your local cloud with AI If you've ever thought, "It works on my machine," this one's for you. 🎥 Watch the recording: https://lnkd.in/gubXWpgF