<p>Has anyone deployed QUIC with a supported/official Kubernetes Ingress Controller? I have been using the NGINX ingress so far and support for QUIC seems to be NOT there at present.</p>

ucipass
<p><a href="https://bunny.net/academy/cdn/what-is-http-3-quic-protocol/" rel="nofollow noreferrer">QUIC/HTTP3</a>  is not yet available in the <code>Stable Nginx</code> and to be available in the Nginx ingress controller will defiantly take time.</p>
<blockquote>
<p>Product Management tells me that we hope to fully support QUIC and HTTP/3 by the end of 2022. Note that this is not a promise :-)</p>
</blockquote>
<p><a href="https://www.nginx.com/blog/our-roadmap-quic-http-3-support-nginx/" rel="nofollow noreferrer">our-roadmap-quic-http-3-support-nginx</a></p>
<p>QUIC/HTTP3 will be targeted in the Nginx ingress controller once nginx release becomes stable.</p>
<blockquote>
<p>we have just upgraded to nginx 1.20.1 and from here <a href="https://quic.nginx.org/README" rel="nofollow noreferrer">https://quic.nginx.org/README</a> it looks that <strong>HTTP/3 is still experimental so not until there is a stable release will we be implementing HTTP/3.</strong></p>
</blockquote>
<p>Here is the feature request <a href="https://github.com/kubernetes/ingress-nginx/issues/4760" rel="nofollow noreferrer">[FEATURE REQUEST] HTTP/3 support</a></p>
<p>You can try the <a href="https://www.nginx.com/blog/our-roadmap-quic-http-3-support-nginx/#How-You-Can-Help" rel="nofollow noreferrer">nginx docker image that show how to build with quick support</a> and try to use Network Load Balancer hope that will work.</p>
