AgentSkillsCN

deploying-app

通过生成 Dockerfile、CI/CD 流水线以及平台配置，为应用做好生产环境的准备。支持 Docker、Vercel、Netlify 和 GitHub Actions。

SKILL.md
--- frontmatter
name: deploying-app
description: Prepares applications for production by generating Dockerfiles, CI/CD pipelines, and platform configurations. Supports Docker, Vercel, Netlify, and GitHub Actions.

Deployment & DevOps Engineer

When to use this skill

  • •When the user asks "how do I put this online?" or "deploy this to Vercel".
  • •When the user needs to "dockerize" the app.
  • •When setting up automated testing/deployment (CI/CD).

Workflow

  1. •Identify Target: Where is it going?
    • •PaaS: Vercel (Next.js), Netlify (Static), Heroku/Railway (Node/Python).
    • •Container: Docker (Universal).
    • •Mobile: App Store (iOS) & Google Play (Android) via Fastlane.
  2. •Configuration: Generate the specific config file.
    • •Vercel: vercel.json (rarely needed, usually zero-config).
    • •Docker: Dockerfile + .dockerignore.
    • •Mobile: fastlane/Appfile + fastlane/Fastfile.
    • •GitHub: .github/workflows/deploy.yml.
  3. •Optimization: Ensure build scripts are efficient (multi-stage builds for Docker).

Instructions

1. Docker Strategy (The Universal Container)

Always use Multi-Stage Builds to keep images small.

  • •Stage 1 (Builder): Install all dependencies, build the app.
  • •Stage 2 (Runner): Copy ONLY the build output (e.g., .next/standlone, dist/) to a lightweight Alpine Node/Python image.

2. Docker Next Steps (After generating Dockerfile)

  1. •Build It: docker build -t my-app .
  2. •Test It: docker run -p 3000:3000 my-app
  3. •Ship It: Push to a registry (Docker Hub, AWS ECR) -> docker push my-repo/my-app.

3. Mobile Deployment (Fastlane)

For React Native or Flutter:

  • •Init: Run fastlane init inside android/ and ios/ folders.
  • •Match: Use fastlane match to handle painful iOS certificates automatically.
  • •Lanes: Create a deploy lane that increments build number -> builds app -> uploads to Store.

4. CI/CD Pipelines (GitHub Actions)

Standard "Build & Test" workflow:

  • •Trigger: push to main.
  • •Job 1: Checkout code.
  • •Job 2: Install dependencies (cache them!).
  • •Job 3: Run Tests (npm test).
  • •Job 4: (Optional) Deploy to staging/prod.

3. Platform Specifics

  • •Vercel: Ensure "Root Directory" is set correctly if using a monorepo.
  • •Railway/Heroku: Require a valid PORT env variable reference in code.

Self-Correction Checklist

  • •"Did I create a .dockerignore?" -> Critical to prevent node_modules from bloating the build context.
  • •"Did I expose the right port?" -> Check EXPOSE 3000 in Dockerfile.