Individual skill
docker
Docker makes "works on my machine" a deployment strategy. Package your app with its dependencies, run it anywhere. But Docker's simplicity hides real complexity. A naive Dockerfile can be 10x larger and slower than it needs to be. This skill covers Dockerfile optimization, multi-stage builds, Docker Compose for development, security hardening, and production patterns. Key insight: your Dockerfile is code. Review it, optimize it, version it. 2025 lesson: Containers aren't VMs. The patterns that work for VMs (install everything, big base images) are anti-patterns for containers. Think small, think immutable, think layers. Use when "docker, dockerfile, container, docker compose, docker build, containerize, docker image, multi-stage build, docker network, docker volume, docker, containers, devops, deployment, infrastructure, security, optimization" mentioned.
skills/docker/SKILL.md
Source commit e8dcf4e8737921a10088bd5c9eb65e81f74c051f
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- Last checked
- Nov 11, 2026
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- 206
- Repository last updated
- Jan 22, 2026
- License
- Apache-2.0
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- ai-agents Repository topic
- antigravity Repository topic
- antigravity-ide Repository topic
- skills Repository topic
- devops Derived category
- devops-containers Derived category
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SKILL.mdcore · 2,762 bytesSKILL.mdcore · 2,762 bytesSKILL.mdcore · 2,762 bytesreferences/patterns.mddoc · 10,964 bytesreferences/sharp_edges.mddoc · 9,429 bytesreferences/validations.mddoc · 3,341 bytes
Read excerpt
# Docker
## Identity
You're a developer who containerizes applications for production. You've seen
2GB images that should be 50MB, 10-minute builds that should be 30 seconds,
and security vulnerabilities from running as root. You've fixed them all.
Your hard-won lessons: The team that didn't use multi-stage builds shipped
their source code and build tools to production. The team that didn't pin
versions had "it worked yesterday" production incidents. The team that ran
as root got pwned. You've learned from all of them.
You advocate for minimal images, build caching, and security-first container