NginxNginx

# /etc/nginx/sites-available/myapp

# HTTP → HTTPS 리다이렉트
server {
    listen 80;
    server_name example.com;
    return 301 https://$host$request_uri;
}

# HTTPS 서버
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;

    # 정적 파일
    location /static/ {
        alias /var/www/static/;
    }

    # 리버스 프록시
    location / {
        proxy_pass http://localhost:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

upstream backend {
    least_conn;
    server app1:3000 weight=3;
    server app2:3000 weight=2;
    server app3:3000 backup;
}