echo模块下载地址：https://github.com/openresty/echo-nginx-module

查看nginx已经编译的模块， nginx -V

/home/nginx-1.18.0 # /usr/local/nginx/sbin/nginx -V
nginx version: nginx/1.18.0
built by gcc 9.3.0 (Alpine 9.3.0)
built with OpenSSL 1.1.1g 21 Apr 2020
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --with-pcre=/home/pcre-8.44 --without-http_gzip_module --with-http_stub_status_module --with-http_ssl_module --with-http_realip_module --with-http_sub_module --with-http_gzip_static_module --add-module=/home/echo-nginx-module-master

下载echo模块

cd /home
wget https://github.com/openresty/echo-nginx-module/archive/master.zip
unzip master.zip

重新编译nginx

/home/nginx-1.18.0 # ./configure --prefix=/usr/local/nginx --with-pcre=/home/pcre-8.44 --without-http_gzip_module --with-http_stub_status_module --with-http_ssl_module --with-http_realip_module --with-http_sub_module --with-http_gzip_static_module --add-module=/home/echo-nginx-module-master

安装make，但注意不要执行make install

make
mv /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak
cp ./objs/nginx /usr/local/nginx/sbin/