菜单
Docker build optimization. Use for Dockerfiles, multi-stage builds, BuildKit cache mounts, .dockerignore, docker-compose.yml, CI/CD caching (GitHub Actions, GitLab CI), and language-specific patterns.
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基于 SOC 职业分类
| name | docker |
| version | "2026-02-01T00:00:00.000Z" |
| description | Docker build optimization. Use for Dockerfiles, multi-stage builds, BuildKit cache mounts, .dockerignore, docker-compose.yml, CI/CD caching (GitHub Actions, GitLab CI), and language-specific patterns. |
Optimize Docker builds for speed through proper layer ordering, BuildKit caching, and CI/CD integration.
# 1. Base image (rarely changes)
FROM node:20-slim AS base
# 2. System dependencies (rarely changes)
RUN apt-get update && apt-get install -y --no-install-recommends \
ca-certificates && rm -rf /var/lib/apt/lists/*
# 3. Package manifests ONLY (changes when deps change)
WORKDIR /app
COPY package.json package-lock.json ./
# 4. Install dependencies (cached unless manifests change)
RUN npm ci
# 5. Source code (changes frequently - LAST)
COPY . .
# 6. Build step
RUN npm run build
Enable BuildKit: DOCKER_BUILDKIT=1 or set in /etc/docker/daemon.json
# Node.js - cache npm
RUN --mount=type=cache,target=/root/.npm npm ci
# Python - cache pip
RUN --mount=type=cache,target=/root/.cache/pip pip install -r requirements.txt
# Go - cache modules
RUN --mount=type=cache,target=/go/pkg/mod go build -o app .
# Build stage
FROM golang:1.22 AS builder
WORKDIR /app
COPY go.mod go.sum ./
RUN go mod download
COPY . .
RUN CGO_ENABLED=0 go build -o app
# Runtime stage (minimal image)
FROM gcr.io/distroless/static-debian12
COPY --from=builder /app/app /app
ENTRYPOINT ["/app"]
Always create .dockerignore to reduce build context:
.git
node_modules
*.log
.env*
dist
build
__pycache__
.pytest_cache
.coverage
Slow build? Check in order:
.dockerignore? → Large build contextCOPY . . before RUN npm install? → Reinstalls on every code changereferences/language-patterns.md - Node.js, Python patterns with cache mountsreferences/language-patterns-compiled.md - Go, Rust patterns + base image tablereferences/cicd-integration.md - GitHub Actions & GitLab CI caching setupreferences/cicd-optimization.md - Cache strategy comparison & optimization tipsreferences/buildkit-advanced.md - BuildKit mounts (cache/bind/secret/SSH), heredocs, debuggingreferences/buildkit-bake.md - Docker Bake multi-target builds (HCL)references/compose-services.md - Compose structure, build, health checks, dependenciesreferences/compose-networking.md - Compose networking, volumes, common commandsReviews code comments across languages before a PR opens. Use when finishing a development branch, before merging, or when a pr create was blocked pending comment review.
Create, promote, categorize, and validate skills for the kettleofskills marketplace. Use when syncing dotfiles skills into the marketplace, adding skills, assigning categories, or preparing a release.
Build Go terminal UIs (TUIs) and CLIs with charmbracelet — Bubble Tea runtime, Lip Gloss styling, Bubbles components, Glamour markdown, Harmonica animation, BubbleZone mouse. For any bubbletea TUI.
Copier templating — author copier.yml templates (questions, Jinja, _tasks, migrations), scaffold via `copier copy`, sync via `copier update`. Use for copier.yml, .copier-answers.yml, or .jinja.
Copyparty portable file server (HTTP/WebDAV/FTP/SFTP/SMB). This skill should be used when deploying via Docker/pip/NixOS, configuring accounts/volumes, indexer, hooks, or forward-auth IdP integration.
Sway tiling Wayland compositor on NixOS. This skill should be used when configuring programs.sway, GPU rendering (Intel/AMD/NVIDIA), Wails/webkit2gtk fixes, xdg portals, home-manager, or wallpapers.