--- title: AWS Lambda functions can now mount Amazon S3 buckets as... description: AWS Lambda now supports Amazon S3 Files, allowing Lambda functions to mount S3 buckets as file systems and perform standard file operations without downloading... canonical: https://daily.dev/posts/aws-lambda-functions-can-now-mount-amazon-s3-buckets-as-file-systems-with-s3-files-mowrvkkr7 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: AWS Lambda functions can now mount Amazon S3 buckets as file systems with S3 Files | daily.dev og:description: AWS Lambda now supports Amazon S3 Files, allowing Lambda functions to mount S3 buckets as file systems and perform standard file operations without downloading... og:url: https://daily.dev/posts/aws-lambda-functions-can-now-mount-amazon-s3-buckets-as-file-systems-with-s3-files-mowrvkkr7 og:image: https://api.daily.dev/og/posts/mOwRvkkR7.png og:image:alt: AWS Lambda functions can now mount Amazon S3 buckets as file systems with S3 Files og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # AWS Lambda functions can now mount Amazon S3 buckets as file systems with S3 Files **[AWS](https://daily.dev/sources/aws)** · 2 min read · 1 upvotes · 0 comments ## Summary AWS Lambda now supports Amazon S3 Files, allowing Lambda functions to mount S3 buckets as file systems and perform standard file operations without downloading data first. Built on Amazon EFS, S3 Files provides file system simplicity with S3's scalability and durability. Multiple Lambda functions can share the same file system simultaneously, eliminating custom synchronization logic. This is especially useful for AI/ML workloads where agents need to persist memory and share state across pipeline steps. Lambda durable functions complement this by enabling multi-step AI workflows with automatic checkpointing. S3 Files can be configured via the Lambda console, AWS CLI, SDKs, CloudFormation, or SAM, and is available at no additional charge beyond standard Lambda and S3 pricing. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [AWS Introduces S3 Files, Bringing File System Access to S3 Buckets](https://daily.dev/posts/aws-introduces-s3-files-bringing-file-system-access-to-s3-buckets-ptldece9l) · InfoQ · 1 upvotes · 0 comments - [AWS turns its S3 storage service into a file system for AI agents](https://daily.dev/posts/aws-turns-its-s3-storage-service-into-a-file-system-for-ai-agents-sccfynore) · InfoWorld · 1 upvotes · 0 comments - [AWS Launches Amazon S3 Files: Bridging Object and File Storage](https://daily.dev/posts/aws-launches-amazon-s3-files-bridging-object-and-file-storage-eaqooxiev) · C\# Corner · 0 upvotes · 0 comments --- Tags: [#aws](https://daily.dev/tags/aws), [#serverless](https://daily.dev/tags/serverless), [#aws-lambda](https://daily.dev/tags/aws-lambda), [#aws-s3](https://daily.dev/tags/aws-s3) [View this post on daily.dev](https://daily.dev/posts/aws-lambda-functions-can-now-mount-amazon-s3-buckets-as-file-systems-with-s3-files-mowrvkkr7) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"AWS Lambda functions can now mount Amazon S3 buckets as file systems with S3 Files","url":"https://daily.dev/posts/aws-lambda-functions-can-now-mount-amazon-s3-buckets-as-file-systems-with-s3-files-mowrvkkr7","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/aws-lambda-functions-can-now-mount-amazon-s3-buckets-as-file-systems-with-s3-files-mowrvkkr7"},"datePublished":"2026-04-21T18:05:08.018Z","dateModified":"2026-04-24T02:33:45.082Z","description":"AWS Lambda now supports Amazon S3 Files, allowing Lambda functions to mount S3 buckets as file systems and perform standard file operations without downloading...","image":"https://media.daily.dev/image/upload/s--qPvKM23u--/f_auto/v1722860399/public/Placeholder%2009","thumbnailUrl":"https://media.daily.dev/image/upload/s--qPvKM23u--/f_auto/v1722860399/public/Placeholder%2009","isAccessibleForFree":true,"articleSection":"AWS","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"AWS","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/aws","url":"https://daily.dev/sources/aws"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/aws-lambda-functions-can-now-mount-amazon-s3-buckets-as-file-systems-with-s3-files-mowrvkkr7","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"aws,serverless,aws-lambda,aws-s3","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"AWS","item":"https://daily.dev/sources/aws"},{"@type":"ListItem","position":3,"name":"AWS Lambda functions can now mount Amazon S3 buckets as file systems with S3 Files"}]} ```