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configure-reverse-proxy

pjt222
Updated 6 days ago
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About

This skill configures reverse proxies using Nginx, Traefik, and ShinyProxy for routing multiple services through a single entry point. It handles WebSocket proxying, path/host-based routing, SSL termination, and Docker label auto-discovery. Use it when you need to proxy WebSocket connections, automatically discover Docker services, or add SSL termination to non-TLS services.

Quick Install

Claude Code

Recommended
Primary
npx skills add pjt222/agent-almanac -a claude-code
Plugin CommandAlternative
/plugin add https://github.com/pjt222/agent-almanac
Git CloneAlternative
git clone https://github.com/pjt222/agent-almanac.git ~/.claude/skills/configure-reverse-proxy

Copy and paste this command in Claude Code to install this skill

Documentation

設反代

以 Nginx、Traefik、ShinyProxy 設路流於後服之反代式。

用時

  • 路多服於單入
  • 代 WebSocket 連(Shiny、Socket.IO、即載)
  • 以 Traefik 標自發 Docker 服
  • 徑或主之路於異後
  • 加 SSL 終於不治 TLS 之服

  • :代之後服(host:port)
  • :路之策(徑、主、或二)
  • 可選:代具之好(Nginx、Traefik)
  • 可選:主路之域名
  • 可選:代之 WebSocket 端

第一步:擇代具

FeatureNginxTraefik
ConfigurationStatic filesDocker labels / dynamic
Auto-discoveryNo (manual)Yes (Docker provider)
Let's EncryptVia certbotBuilt-in ACME
DashboardNo (3rd party)Built-in
WebSocketManual configAutomatic
Best forStatic config, high trafficDynamic Docker environments

第二步:Nginx——徑路

server {
    listen 80;

    location /api/ {
        proxy_pass http://api:8000/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    location /app/ {
        proxy_pass http://webapp:3000/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    location / {
        root /usr/share/nginx/html;
        try_files $uri $uri/ /index.html;
    }
}

注: proxy_pass 之尾 / 剝位前綴。location /api/proxy_pass http://api:8000/;/api/users 轉為 /users

第三步:Nginx——主路

server {
    listen 80;
    server_name api.example.com;

    location / {
        proxy_pass http://api:8000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

server {
    listen 80;
    server_name app.example.com;

    location / {
        proxy_pass http://webapp:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

第四步:Nginx——WebSocket 代

WebSocket 需升頭。於 Shiny、Socket.IO、即載為要:

location /ws/ {
    proxy_pass http://app:3000;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";
    proxy_set_header Host $host;
    proxy_read_timeout 86400;
}

專於 Shiny 應:

map $http_upgrade $connection_upgrade {
    default upgrade;
    ''      close;
}

server {
    location / {
        proxy_pass http://shiny:3838;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection $connection_upgrade;
        proxy_set_header Host $host;
        proxy_read_timeout 86400;
        proxy_buffering off;
    }
}

得: WebSocket 連立且持。

敗則:proxy_http_version 1.1 已設。驗 UpgradeConnection 頭。

第五步:Traefik——Docker 標自發

docker-compose.yml

services:
  traefik:
    image: traefik:v3.2
    command:
      - "--providers.docker=true"
      - "--providers.docker.exposedbydefault=false"
      - "--entrypoints.web.address=:80"
      - "--entrypoints.websecure.address=:443"
      - "[email protected]"
      - "--certificatesresolvers.letsencrypt.acme.storage=/letsencrypt/acme.json"
      - "--certificatesresolvers.letsencrypt.acme.httpchallenge.entrypoint=web"
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - letsencrypt:/letsencrypt

  api:
    image: myapi:latest
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.api.rule=Host(`api.example.com`)"
      - "traefik.http.routers.api.entrypoints=websecure"
      - "traefik.http.routers.api.tls.certresolver=letsencrypt"
      - "traefik.http.services.api.loadbalancer.server.port=8000"

  webapp:
    image: myapp:latest
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.webapp.rule=Host(`app.example.com`)"
      - "traefik.http.routers.webapp.entrypoints=websecure"
      - "traefik.http.routers.webapp.tls.certresolver=letsencrypt"
      - "traefik.http.services.webapp.loadbalancer.server.port=3000"

volumes:
  letsencrypt:

得: Traefik 以標自發服,供 SSL 證。

第六步:Traefik——徑路以標

services:
  api:
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.api.rule=Host(`example.com`) && PathPrefix(`/api`)"
      - "traefik.http.routers.api.middlewares=strip-api"
      - "traefik.http.middlewares.strip-api.stripprefix.prefixes=/api"
      - "traefik.http.services.api.loadbalancer.server.port=8000"

第七步:Traefik——率限與頭

labels:
  - "traefik.http.middlewares.ratelimit.ratelimit.average=100"
  - "traefik.http.middlewares.ratelimit.ratelimit.burst=50"
  - "traefik.http.middlewares.security.headers.stsSeconds=63072000"
  - "traefik.http.middlewares.security.headers.contentTypeNosniff=true"
  - "traefik.http.middlewares.security.headers.frameDeny=true"
  - "traefik.http.routers.app.middlewares=ratelimit,security"

第八步:驗代設

# Nginx: test config
docker compose exec nginx nginx -t

# Check routing
curl -H "Host: api.example.com" http://localhost/health

# Check WebSocket (needs wscat: npm install -g wscat)
wscat -c ws://localhost/ws/

# Traefik dashboard (if enabled)
# http://localhost:8080/dashboard/

得: 請依徑或主路於正後。WebSocket 升成。

  • HTTP 請依徑或主路於正後
  • WebSocket 連立且持
  • SSL 終行(若設)
  • 後受正 HostX-Real-IPX-Forwarded-For
  • Traefik 以標自發新服(若用 Traefik)
  • 設於 docker compose restart 後存

  • / 不合:Nginx 中 proxy_pass http://app/http://app 於徑剝行異。
  • WebSocket 超時:默 proxy_read_timeout 六十秒。長 WebSocket 連需 86400(二十四時)。
  • Docker 符安:於 Traefik 掛 /var/run/docker.sock 予其全 Docker 訪。用 ro 掛且慎思符代。
  • DNS 解:Nginx 於啟時解上。動服用 resolver 127.0.0.11 為 Docker 內 DNS。
  • proxy_buffering off:Shiny 與 SSE 端需 proxy_buffering off 為實時流。

  • configure-nginx - Nginx 詳設附 SSL 與安頭
  • deploy-shinyproxy - ShinyProxy 為容 Shiny 應載
  • setup-compose-stack - 用反代之 compose 棧
  • configure-api-gateway - Kong 與 Traefik 之 API 門式

GitHub Repository

pjt222/agent-almanac
Path: i18n/wenyan/skills/configure-reverse-proxy
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