VoxCPM/docker/nginx.conf

# Preserve X-Forwarded-Proto from upstream load balancer (e.g. AWS ALB).
# If ALB already set it to "https", pass that through instead of $scheme
# (which is "http" since ALB→nginx is unencrypted).  Falls back to $scheme
# when accessed directly (no upstream proxy).
map $http_x_forwarded_proto $forwarded_proto {
    default $http_x_forwarded_proto;
    ""      $scheme;
}

server {
    listen 80;
    server_name _;

    absolute_redirect off;

    # Health check for load balancers (AWS ALB, etc.)
    location = / {
        proxy_pass http://training-webui:7860/;
        proxy_set_header Host $host;
        proxy_read_timeout 5s;
        proxy_connect_timeout 3s;
        access_log off;
    }

    location = /manifest.json {
        return 200 '{"name":"VoxCPM Training","short_name":"VoxCPM","start_url":"/webui/"}';
        default_type application/json;
    }

    location = /favicon.ico {
        return 204;
        access_log off;
    }

    location /webui/ {
        proxy_pass http://training-webui:7860/;
        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 $forwarded_proto;

        # WebSocket support (required for Gradio)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";

        # Increase timeouts for long-running training operations
        proxy_read_timeout 300s;
        proxy_send_timeout 300s;
    }
}