code-interpreter/nginx.conf at main · ClickHouse/code-interpreter · GitHub

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limit_req_status 429;
limit_req_zone $binary_remote_addr zone=api_limit:10m rate=10r/s;

server {
    listen 80;
    server_name api.librechat.ai;

    # Necessary forwarding of Real IP's
    # User → Cloudflare → DO Load Balancer → Nginx → Express
    real_ip_header CF-Connecting-IP;

    # DO Load Balancer range
    set_real_ip_from 10.0.0.0/8;

    # Cloudflare IPs
    set_real_ip_from 173.245.48.0/20;
    set_real_ip_from 103.21.244.0/22;
    set_real_ip_from 103.22.200.0/22;
    set_real_ip_from 103.31.4.0/22;
    set_real_ip_from 141.101.64.0/18;
    set_real_ip_from 108.162.192.0/18;
    set_real_ip_from 190.93.240.0/20;
    set_real_ip_from 188.114.96.0/20;
    set_real_ip_from 197.234.240.0/22;
    set_real_ip_from 198.41.128.0/17;
    set_real_ip_from 162.158.0.0/15;
    set_real_ip_from 104.16.0.0/13;
    set_real_ip_from 104.24.0.0/14;
    set_real_ip_from 172.64.0.0/13;
    set_real_ip_from 131.0.72.0/22;

    # Set default client body size to something small (e.g., 1M)
    client_max_body_size 1M;

    # Logging
    access_log /var/log/nginx/api_access.log;
    error_log /var/log/nginx/api_error.log warn;

    location /health {
        access_log off;
        add_header Content-Type text/plain;
        return 200 'healthy';
    }

    # Specific location for uploads with 25M limit
    location /v1/upload {
        limit_req zone=api_limit burst=20 nodelay;

        # Check for X-API-Key header
        if ($http_x_api_key = "") {
            add_header Content-Type application/json;
            return 403 '{"error": "API Key required"}';
        }

        client_max_body_size 25M;

        proxy_pass http://172.17.0.1:3112;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $http_cf_connecting_ip;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # timeout
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;

        # Security headers
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header Referrer-Policy "no-referrer-when-downgrade" always;
        add_header Content-Security-Policy "default-src 'self' http: https: data: blob: 'unsafe-inline'" always;
    }

    # General location for all other endpoints
    location / {
        limit_req zone=api_limit burst=20 nodelay;

        # Check for X-API-Key header
        if ($http_x_api_key = "") {
            add_header Content-Type application/json;
            return 403 '{"error": "API Key required"}';
        }

        client_max_body_size 1M;  # Stricter limit for non-upload endpoints

        proxy_pass http://172.17.0.1:3112;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $http_cf_connecting_ip;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;

        # timeout
        proxy_connect_timeout 120s;
        proxy_send_timeout 120s;
        proxy_read_timeout 120s;

        # Security headers
        add_header X-Frame-Options "SAMEORIGIN" always;
        add_header X-XSS-Protection "1; mode=block" always;
        add_header X-Content-Type-Options "nosniff" always;
        add_header Referrer-Policy "no-referrer-when-downgrade" always;
        add_header Content-Security-Policy "default-src 'self' http: https: data: blob: 'unsafe-inline'" always;
    }
}