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feat: Add support for HTTP keep-alive between the proxy and upstream

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Richard Hansen
2022-03-28 02:56:36 -04:00
parent 1f855fc7b3
commit 49bb37dfdb
4 changed files with 98 additions and 4 deletions
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README.md
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@@ -373,6 +373,13 @@ docker run -d -p 80:80 -p 443:443 \
You'll need apache2-utils on the machine where you plan to create the htpasswd file. Follow these [instructions](http://httpd.apache.org/docs/2.2/programs/htpasswd.html)
### Upstream (Backend) Server HTTP Keep-Alive Support
> **Warning**
> This feature is experimental. The behavior may change (or the feature may be removed entirely) without warning in a future release, even if the release is not a new major version. If you use this feature, or if you would like to use this feature but you require changes to it first, please [provide feedback in #2194](https://github.com/nginx-proxy/nginx-proxy/discussions/2194). Once we have collected enough feedback we will promote this feature to officially supported.
To enable HTTP keep-alive between `nginx-proxy` and a backend server, set the `com.github.nginx-proxy.nginx-proxy.keepalive` label on the server's container to the desired maximum number of idle connections. See the [nginx keepalive documentation](https://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive) and the [Docker label documentation](https://docs.docker.com/config/labels-custom-metadata/) for details.
### Headers
By default, `nginx-proxy` forwards all incoming request headers from the client to the backend server unmodified, with the following exceptions: