MicroVMs makes a debut 🚀☁️ #105
Blocks also debuts, the real LEGO blocks of AWS
In the previous issue, AWS Step Functions + Bedrock AgentCore: The Serverless AI Blueprint 🚀☁️ #104 focused on the SF and AgentCore harness.
As we lean harder into “vibe coding” and agentic workflows, a massive infrastructure challenge has quietly loomed: How do you safely execute AI-generated code on the fly without blowing up your architecture or your budget? Lambda MicroVMs, built on top of Firecracker, are a new serverless compute primitive that gives developers VM-level isolation, near-instant launch/resume speeds, and up to 8 hours of state preservation. If you are building coding assistants, data analytics platforms, or multi-tenant apps that handle code supplied by end-users or LLMs, this completely changes the game. You no longer have to choose between strict security boundaries and snappy performance. You can spin them up directly from Dockerfiles, and they come out of the box with dedicated HTTPS URLs supporting WebSockets, gRPC, and HTTP/2. Plus, with integration into the Agent Toolkit for AWS, building secure, sandboxed AI environments just got a whole lot easier.
Standard Container Tooling: Spin up dedicated, isolated execution environments per user or session straight from your standard Dockerfiles.
Rich Protocol Support: Each MicroVM gets its own dedicated HTTPS URL with native support for WebSockets, gRPC, and HTTP/2.
Agent-Ready Out of the Box: It integrates directly with the new Agent Toolkit for AWS, making it incredibly smooth to wire into your preferred agentic development frameworks.
⭐ Pick of the month
This month’s Pick is “Workflows on Serverless”.
Jones Zachariah Noel’s blog series on AWS Step Functions covers different aspects of Serverless workflows from bringing use-cases with AI to features of Step Functions such as Jitter Strategy, HTTP invocation and more.
🚀 AWSome content to learn from
Marko Milosavljevic explains how easy it is to setup Amazon Cognito with userpool backed authentication, SAML integrations and API level permission scopes.
Matheus das Mercês builds out a serverless multi-backend web search service for AI Agents on AWS which becomes a unifies interface for multiple search providers.
Kenta Goto breaks down AWS Block for CDK Developer from understanding the project structure to deployment and how you can also bring in CDK resources into Blocks.
Aidan Steele pens down some important notes on Lambda MicroVMs and things missed on the AWS Docs, ranging from questions and capabilities around shell in MicroVM to networking, lifecycle hooks and performance.
Jatin Mehrotra’s blog on AWS Lambda MicroVMs: Your AI Agent Can Write Code. But Should It Execute It? debunks the trade-offs before MicroVMs to how you can build an ephemeral sandbox for AI Agent code execution.
Vivek Velso breaks down how to build a personal Serverless VPN on MicroVM with some lessons learnt with every failed deployment and what works in favor of MicroVMs.
There’s No Place Like localhost:4566 by Marcos Henrique explains how to run AWS local for actually 0 USD (without selling a kidney) with flavours of Localstack v/s Ministack v/s AWS Blocks
Johannes Geiger’s blog AWS Workload Credentials Provider for AWS Lambdas breaks down the way to setup Workload Credentials with multiple approaches along with some lessons learnt while trying them up.
⚒️ What's happening with Serverless tools, samples, and projects
Rajesh Pandey has published uvlink.
Suresh M. has built commerce-converse-lab
John Ajera has built terraform-aws-s3-annotations-demo.
Gunnar Grosch has a new version of durable-viz v0.4.1.
🎙️ Podcasts, videos, and live-streams
Joud Awad’s video on Queues vs Streams vs Event Bus: When to Use Each (System Design)
Manoj Fernando explains Controlling Traffic Flow Between Resources with Security Groups - Part 12(in Singhala)
Rishi explains AWS Blocks Infrastructure from Code
🗓️ Mark your calendars
Tech Harate on July 27th, 2026.
AWS Community Days are happening -
ACD Kenya - Pwani Edition on July 4th, 2026.
ACD Bengaluru on July 11th, 2026.
ACD Ahmedabad - DevOps Edition on July 25th, 2026.
ACD Ottawa on August 21st and 22nd, 2026.
ACD Singapore on August 22nd, 2026.
ACD Manila on August 22nd and 23rd, 2026.
ACD Poland on September 8th, 2026. CFP is currently open until July 6th, 2026.
ACD Sri Lanka on September 11th, 2026. CFP is currently open.
ACD DACH on September 15th, 2026. CFP is currently open until June 30th, 2026.
ACD NL on September 23rd, 2026.
ACD Malaysia on September 26th, 2026. CFP is currently open.
ACD DMV on October 9th, 2026. CFP is currently open until August 15th, 2026.
ACD Armenia in October 2026. CFP is currently open until July 20th, 2026.
ACD South Florida on October 14th, 2026. CFP is currently open until August 15th, 2026.
ACD Australia on October 16th, 2026. CFP is currently open until August 16th, 2026.
ACD Mumbai on October 17th, 2026.
ACD Adria on October 22nd, 2026.
ServerlessDays Milano on October 13th, 2026.
AWS North Community Conf on October 15th, 2026. CFP is currently open until June 30th, 2026.
📢 What's new in Serverless
Amazon S3 server access logs now deliver to Amazon CloudWatch Logs and Amazon S3 Tables.
AWS introduces Lambda MicroVMs for isolated execution of user and AI-generated code.
AgentCore harness is now generally available.
AWS DevOps Agent adds release management capability (preview).
Amazon CloudWatch introduces native OpenTelemetry metrics with PromQL querying and per-GB pricing.
AWS Lambda Managed Instances now supports Tag Propagation for Managed Resources.
AWS DevOps Agent expands with custom SRE agents and MCP/A2A protocols
👨💻 Word from the author
Thanks for the support and let’s share more about Serverless!!!
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Until next time, happy building on Serverless!