# 完整主配置：覆盖 nginx:alpine 默认 /etc/nginx/nginx.conf
# 新版 nginx 在受限容器内写 /run/nginx.pid 会报 Operation not permitted 并致命退出，
# 这里把 pid 显式改到可写的 /tmp（main 上下文唯一一处），避免前端容器反复重启。
pid /dev/null;
worker_processes auto;

events {
    worker_connections 1024;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;
    sendfile on;
    keepalive_timeout 65;

    server {
        listen 80;
        server_name _;

        root /usr/share/nginx/html;
        index index.html;

        # SPA 兜底（hash 路由下深链接也可正常加载）
        location / {
            try_files $uri $uri/ /index.html;
        }

        # 后端 API：保留 /api 前缀转发到 avatar-backend:8000
        location /api/ {
            proxy_pass http://avatar-backend:8000;
            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;
        }
    }
}