Agent-almanac configure-nginx

install
source · Clone the upstream repo
git clone https://github.com/pjt222/agent-almanac
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/pjt222/agent-almanac "$T" && mkdir -p ~/.claude/skills && cp -r "$T/i18n/wenyan-ultra/skills/configure-nginx" ~/.claude/skills/pjt222-agent-almanac-configure-nginx-16e619 && rm -rf "$T"
manifest: i18n/wenyan-ultra/skills/configure-nginx/SKILL.md
source content

配 Nginx

設 Nginx 為網服與反代,含 SSL 終與安固。

  • 生產供靜檔(HTML、CSS、JS)
  • 反代至後端(Node.js、Python、Go、R/Shiny)
  • 以 Let's Encrypt 終 SSL/TLS
  • 諸後端間負載平衡
  • 加限率與安頭

  • :部目(Docker 容器或裸機)
  • :所代後端(host:port)
  • :SSL 域名
  • :靜檔目錄

一:基反代

nginx.conf

events {
    worker_connections 1024;
}

http {
    upstream app {
        server app:3000;
    }

    server {
        listen 80;
        server_name example.com;

        location / {
            proxy_pass http://app;
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }
    }
}

Docker Compose 服:

services:
  nginx:
    image: nginx:1.27-alpine
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
    depends_on:
      - app

得: 80 埠求轉至 app 服。

二:靜檔供

server {
    listen 80;
    root /usr/share/nginx/html;
    index index.html;

    location / {
        try_files $uri $uri/ /index.html;
    }

    location /assets/ {
        expires 1y;
        add_header Cache-Control "public, immutable";
    }

    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff2?)$ {
        expires 6M;
        add_header Cache-Control "public";
    }
}

三:SSL/TLS 以 Let's Encrypt

以 certbot webroot 法:

server {
    listen 80;
    server_name example.com;

    location /.well-known/acme-challenge/ {
        root /var/www/certbot;
    }

    location / {
        return 301 https://$host$request_uri;
    }
}

server {
    listen 443 ssl;
    server_name example.com;

    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;

    ssl_protocols TLSv1.2 TLSv1.3;
    ssl_ciphers HIGH:!aNULL:!MD5;
    ssl_prefer_server_ciphers on;

    location / {
        proxy_pass http://app;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Docker Compose 含 certbot:

services:
  nginx:
    image: nginx:1.27-alpine
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./nginx.conf:/etc/nginx/nginx.conf:ro
      - certbot-webroot:/var/www/certbot:ro
      - certbot-certs:/etc/letsencrypt:ro

  certbot:
    image: certbot/certbot
    volumes:
      - certbot-webroot:/var/www/certbot
      - certbot-certs:/etc/letsencrypt

volumes:
  certbot-webroot:
  certbot-certs:

初證:

docker compose run --rm certbot certonly \
  --webroot -w /var/www/certbot \
  -d example.com --email admin@example.com --agree-tos

得: HTTPS 含有效 Let's Encrypt 證。

敗: 察 DNS 指服。驗 80 埠開以 ACME 挑戰。

四:安頭

server {
    # ... SSL config above ...

    add_header X-Frame-Options "SAMEORIGIN" always;
    add_header X-Content-Type-Options "nosniff" always;
    add_header X-XSS-Protection "1; mode=block" always;
    add_header Referrer-Policy "strict-origin-when-cross-origin" always;
    add_header Strict-Transport-Security "max-age=63072000; includeSubDomains" always;
    add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline';" always;

    # Hide Nginx version
    server_tokens off;
}

五:限率

http {
    # Define rate limit zones
    limit_req_zone $binary_remote_addr zone=api:10m rate=10r/s;
    limit_req_zone $binary_remote_addr zone=login:10m rate=1r/s;

    server {
        location /api/ {
            limit_req zone=api burst=20 nodelay;
            proxy_pass http://app;
        }

        location /login {
            limit_req zone=login burst=5;
            proxy_pass http://app;
        }
    }
}

六:負載平衡

upstream app {
    least_conn;
    server app1:3000;
    server app2:3000;
    server app3:3000 backup;
}
MethodDirectiveBehavior
Round robin(default)Equal distribution
Least connections
least_conn
Routes to least busy
IP hash
ip_hash
Sticky sessions
Weighted
server app:3000 weight=3
Proportional

七:測配

# Test config syntax
docker compose exec nginx nginx -t

# Reload without downtime
docker compose exec nginx nginx -s reload

# Check response headers
curl -I https://example.com

得:

nginx -t
報語正。頭含安頭。

  • nginx -t
    報配有效
  • HTTP 轉 HTTPS(若 SSL 啟)
  • 後端服經代可達
  • 響中現安頭
  • 過求觸限率
  • SSL Labs 測得 A+(若公)

  • proxy_set_header Host
    :後端收誤主機頭→破虛主機與轉。
  • location
    序要
    :Nginx 用最具體匹。exact(
    =
    )> prefix(
    ^~
    )> regex(
    ~
    )> general prefix。
  • SSL 證更:設 cron 或計時器以
    certbot renew
    且 Nginx 重載。
  • 大求體:默
    client_max_body_size
    1MB。檔上→
    client_max_body_size 50m;
  • WebSocket 代:須加頭。見
    configure-reverse-proxy

  • configure-reverse-proxy
    - 多具代模含 WebSocket 與 Traefik
  • setup-compose-stack
    - 含 Nginx 之 compose 堆
  • deploy-searxng
    - 用 Nginx 為 SearXNG 前
  • configure-ingress-networking
    - K8s ingress(NGINX Ingress 控)