Add support for Apache module mod_proxy_http2

[wernermaes]

Use Case

I want to use http2 protocol in our proxy configuration

Describe the Solution You Would Like

I would like to be able to enable / install and configure the mod_proxy_http2 module

Describe Alternatives You've Considered

I would need to "hack" the required configuration around this puppet project to make it possible to enable and configure the proxy_http2 module.

Additional Context

https://httpd.apache.org/docs/current/mod/mod_proxy_http2.html

[github-actions]

Hello! 👋

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[ekohl]

It would probably mean writing a class apache::mod::proxy_http2 which is just like apache::mod::proxy_http. Then if you want to make it fancy, you could do something smart and inspect proxy_pass. If it starts with h2:// or h2c:// then include the module automatically. This should be done in both apache::vhost and apache::vhost::proxy.

[ekohl]

I may have a need for this myself so I started #2393.