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<p>Hi,</p>
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<p>i'm trying to setup two Nginx upstreams (one with HTTP and one with HTTPS) and the proxy_pass module should decide which of the upstreams is serving "valid" content.</p>
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<p>The config should look like this:</p>
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<p>upstream proxy_backend {</p>
<p> server xxx.xx.188.53;</p>
<p> server xxx.xx.188.53:443;</p>
<p></p>
<p>}</p>
<p><br>
</p>
<p>server {</p>
<p> listen 443 ssl;</p>
<p> ...</p>
<p> location / {</p>
<p> proxy_pass <a href="http://proxy_backend" class="OWAAutoLink" id="LPlnk114613" previewremoved="true">
http://proxy_backend</a>;</p>
<p> #<span style="font-size: 12pt;">proxy_pass </span><a href="https://proxy_backend" class="OWAAutoLink" id="LPlnk248790" previewremoved="true">https://proxy_backend</a><span style="font-size: 12pt;">;</span></p>
<p></p>
<p> }</p>
<p> }</p>
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<p>The Problem is that i don't know if the upstream is serving the content via http or https. Is there any possibility to tell nginx to change the protocol from the proxy_pass directive? Because if i set proxy_pass to https, i get an error (502 / 400) if the
upstream website is running on http and vice versa.</p>
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<p>So i'm searching for a way to let Nginx decide if he should proxy_pass via http or https. Can anybody help me with that configuration?</p>
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<p>Thanks </p>
<p>Greets</p>
<p>Kilian</p>
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