Add notice about port binding and overriding of UFW to docker run reference

Signed-off-by: Kovah <mail@kovah.de>
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
(cherry picked from commit a955ed6477)
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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Kovah 2019-09-26 20:12:54 +02:00 committed by Sebastiaan van Stijn
parent 5908cdf87c
commit 040920f428
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@ -352,6 +352,11 @@ machine. You can also specify `udp` and `sctp` ports.
The [Docker User Guide](https://docs.docker.com/engine/userguide/networking/default_network/dockerlinks/)
explains in detail how to manipulate ports in Docker.
Note that ports which are not bound to the host (i.e., `-p 80:80` instead of
`-p 127.0.0.1:80:80`) will be accessible from the outside. This also applies if
you configured UFW to block this specific port, as Docker manages his
own iptables rules. [Read more](https://docs.docker.com/network/iptables/)
```bash
$ docker run --expose 80 ubuntu bash
```