request help: proxy_pass cannot use https

[Horus-K]

Issue description

nginx returen 502

route use force https

apisix log:
2021/12/17 14:00:15 [error] 51#51: 7848975 [lua] init.lua:157: http_ssl_phase(): failed to fetch ssl config: failed to find SNI: please check if the client requests via IP or uses an outdated protocol. If you need to report an issue, provide a packet capture file of the TLS handshake., context: ssl_certificate_by_lua, client: xxxxxx, server: 0.0.0.0:9443

Environment

• apisix version 2.10.2:
• OS centos7.9:
• OpenResty / Nginx version (cmd: nginx -V or openresty -V):
• etcd version, 3.4.0
• apisix-dashboard version, 2.9

[Horus-K]

If proxy_pass uses http, then the route cannot be enabled to force https, otherwise there will be too many 301 redirects

[Horus-K]

I used ingress-nginx to start force https, return code 308, proxy_pass can use https
On apisix, I used https forwarding and set ret_code 308. In the end, proxy_pass still redirected too many 301 and was not accessible

[Horus-K]

i see this #2257 but ret_code still not work

[tokers]

Please describe your architecture elaborately.

[Horus-K]

Please describe your architecture elaborately.

We have 5 nginx online servers, we need to use proxy_pass to gray some traffic to apisix

[Horus-K]

Please describe your architecture elaborately.

And I need to know how to use proxy_pass https

[Horus-K]

location / {
    index index.html;
    proxy_pass https://xxxxxxx.com;

    proxy_set_header Host $proxy_host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_ssl_session_reuse off;
    proxy_ssl_server_name on;
    proxy_ssl_name $proxy_host;
    proxy_ssl_protocols TLSv1.2;
}  that's it