# Guardener automates migration from legacy Dockerfiles to secure Chainguard container images

DevFeed: [Guardener automates migration from legacy Dockerfiles to secure Chainguard container images](<https://devfeed.tech/articles/meet-guardener-the-intelligent-migration-expert-for-everyone-13154.md>)

Original publisher: [Read original article](<https://www.chainguard.dev/unchained/meet-the-guardener>)

Published: 2026-03-17T00:00:00Z

Content type: release

Language: en

Sources: [Chainguard: Unchained](<https://devfeed.tech/sources/chainguard-unchained.md>)

Topics: [AI Development](<https://devfeed.tech/topics/ai-development.md>), [Dockerfile](<https://devfeed.tech/topics/dockerfile.md>), [migration](<https://devfeed.tech/topics/migration.md>), [Security](<https://devfeed.tech/topics/security.md>), [Automation](<https://devfeed.tech/topics/automation.md>), [supply-chain-security](<https://devfeed.tech/topics/supply-chain-security.md>)

Tags: [agent](<https://devfeed.tech/tags/agent.md>), [ai](<https://devfeed.tech/tags/ai.md>), [ai-agents](<https://devfeed.tech/tags/ai-agents.md>), [ai-migration-agents](<https://devfeed.tech/tags/ai-migration-agents.md>), [audit](<https://devfeed.tech/tags/audit.md>), [automation](<https://devfeed.tech/tags/automation.md>), [chainguard-ai-tools](<https://devfeed.tech/tags/chainguard-ai-tools.md>), [chainguard-guardener](<https://devfeed.tech/tags/chainguard-guardener.md>), [chainguard-the-guardener](<https://devfeed.tech/tags/chainguard-the-guardener.md>), [container-images](<https://devfeed.tech/tags/container-images.md>), [distroless](<https://devfeed.tech/tags/distroless.md>), [dockerfiles](<https://devfeed.tech/tags/dockerfiles.md>), [migration](<https://devfeed.tech/tags/migration.md>), [security](<https://devfeed.tech/tags/security.md>), [vulnerabilities](<https://devfeed.tech/tags/vulnerabilities.md>)

## AI overview

Chainguard introduces Guardener, an AI-native agent that helps engineering teams migrate legacy Dockerfiles to minimal Chainguard container images. It gathers environmental context, rebuilds Dockerfiles layer by layer, tests the results, and provides post-migration insights on image size, CVEs, and filesystem changes.

## Source excerpt

Guardener is an AI-native agent that accelerates engineering teams' adoption of trusted open source artifacts across software development and deployment.