Test Nginx conf quickly

test-nginx.conf

server {
    listen 80;
    server_name localhost;

    location ~ /watch {
        default_type application/json;
        if ($arg_device = desktop) {
            return 200 '{"message": "Desktop found !"}';
        }
        return 301 $scheme://$host/success?device=$arg_device;
    }

    location ~ /success {
        default_type application/json;
        return 200 '{"message": "Success $arg_device"}';
    }

    error_page 404             /404.html;
    error_page 500 502 503 504 /50x.html;
}

test-nginx.sh

docker run --name nginx-test -p 80:80 -v $PWD/default.conf:/etc/nginx/conf.d/default.conf:ro -d nginx
# reload after changes in default.conf
docker exec nginx-test nginx -s reload
# test
curl localhost/watch?device=desktop