Dockerfile — 完整编写指南

Expert reference for writing production-grade Dockerfiles. Every instruction, every pattern, every optimization.

When to Use

ALWAYS use this skill when the user mentions:

• "Dockerfile", "怎么写 Dockerfile", "Dockerfile 指令"
• "多阶段构建", "multi-stage build"
• "Dockerfile 层优化", "layer caching"
• "Dockerfile 模板", language-specific: "Go Dockerfile", "Java Dockerfile", "Python Dockerfile"
• Need to create or optimize a Dockerfile
• "Dockerfile best practices"

Instruction Reference

FROM — Base Image