Passing to an http2 application

[viraladmin]

I have an application running on port 8085 that is an http2 application.

I have tried everything I can to pass to this port and cannot for the life of me figure this out.

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proxy_pass      https://my.ip.address:8085;

returns:

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Unknown ALPN Protocol, expected `h2` to be available.
If this is a HTTP request: The server was not configured with the `allowHTTP1` option or a listener for the `unknownProtocol` event.

I have tried using the http2 template. I have tried adding the ssl http2 options directly:

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listen      my.ip.address:443 ssl http2;

adding the ssl option also returns an error

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no "ssl_certificate" is defined for the "listen ... ssl" directive in /etc/nginx/conf.d/my.ip.address.conf:1

if I set this code after ssl option after the

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ssl_certificate      /home/user/conf/web/ssl.url.pem;
ssl_certificate_key  /home/user/conf/web/ssl.url.key;

no ssl_certificate error seems to go away. However nothing I am trying actually forwards to the app and gets rid of the "Unknown ALPN Protocol" error.

Does anyone have a proper solution to this?