# 边缘 nginx 主配置（性能整改 P0-2，plans/refactor/public-capacity-10k-refactor.md）
# 由 deploy/admin.Dockerfile COPY 进镜像替换官方默认——官方默认 worker_connections 1024
# × 4 worker = 4096 连接硬顶，扛不住 1w 并发口径；events{} 只存在于主配置，conf.d 覆盖不了。
# 注意：admin 与 v2-admin 共用本 Dockerfile，两侧都会得到本主配置（upstream/gzip 对
# v2-admin 无害；worker_connections 抬升对静态服务同样受益）。
user  nginx;
worker_processes  auto;
# 每 worker 连接预算上限（4 × 16384 客户端连接 + 上游 keepalive 连接）
worker_rlimit_nofile 65536;

error_log  /var/log/nginx/error.log warn;
pid        /var/run/nginx.pid;

events {
    worker_connections 16384;
    multi_accept on;
}

http {
    include       /etc/nginx/mime.types;
    default_type  application/octet-stream;

    # 1w 并发下无访问日志无从排障：带上游耗时的结构化日志（rt=总耗时 urt=上游耗时）
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                    '$status $body_bytes_sent "$http_referer" "$http_user_agent" '
                    'rt=$request_time uct=$upstream_connect_time urt=$upstream_response_time';
    access_log  /var/log/nginx/access.log main;

    sendfile      on;
    tcp_nopush    on;
    tcp_nodelay   on;
    keepalive_timeout 65;
    types_hash_max_size 2048;

    # 压缩：API JSON（详情含 ~11KB price_matrix）与 SPA 静态资源，带宽降 5~10x
    gzip on;
    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 5;
    gzip_min_length 1024;
    gzip_types application/json application/javascript text/css text/plain text/xml image/svg+xml;

    include /etc/nginx/conf.d/*.conf;
}