Laradock 中 nginx 获取不到 log_format 定义的格式

使用 Laradock 在 nginx.conf 中定义了 log_format 日志格式，在 sites/project.conf 中获取不到。

nginx.conf

http{
    ……
    log_format main '$remote_addr - $remote_user [$time_local] "$request" '
                 '$status $body_bytes_sent "$http_referer" '
                 '"$http_user_agent" "$http_x_forwarded_for" - $request_time $upstream_response_time';
}

sites/project.conf

server{
    ……
    access_log /var/log/nginx/laravel_access.log main;
}

docker exec laradock_nginx_1 nginx -t 提示如下

nginx: [emerg] unknown log format "main" in /etc/nginx/sites-available/jnreli.conf:89
nginx: configuration file /etc/nginx/nginx.conf test failed