ocsp proxy
ssl_stapling on;
ssl_stapling_verify off;
ssl_trusted_certificate /usr/local/openresty/nginx/conf/conf.d/cert.pem;
ssl_stapling_responder http://{ip:port}/ocsp/ocsp2.globalsign.com/gsorganizationvalsha2g2;
http://{ip:port}/ocsp/ocsp.int-x3.letsencrypt.org/