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Correct proxies documentation for Docker Desktop (mac) (#11069) 

* Update index.md

The proxies set in the Docker Desktop settings are actually not propagated in the containers automatically.
The rationale being that we want the same UX on Windows/Mac and as on Linux.

Related to https://github.com/docker/docker.github.io/pull/10890

* Minor update

Co-authored-by: Usha Mandya <47779042+usha-mandya@users.noreply.github.com>
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Mathieu Champlon 2020-07-01 15:42:14 +02:00 committed by GitHub
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18
docker-for-mac/index.md
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@ -175,28 +175,26 @@ For more information, see:
#### Proxies
Docker Desktop detects HTTP/HTTPS Proxy Settings from macOS and automatically
propagates these to Docker and to your containers. For example, if you set your
propagates these to Docker. For example, if you set your
proxy settings to `http://proxy.example.com`, Docker uses this proxy when
pulling containers.
When you start a container, your proxy settings propagate into the containers.
For example:
Your proxy settings, however, will not be propagated into the containers you start.
If you wish to set the proxy settings for your containers, you need to define
environment variables for them, just like you would do on Linux, for example:
```
$ docker run -it alpine env
$ docker run -e HTTP_PROXY=http://proxy.example.com:3128 alpine env
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
HOSTNAME=b7edf988b2b5
TERM=xterm
HOME=/root
HTTP_PROXY=http://proxy.example.com:3128
http_proxy=http://proxy.example.com:3128
no_proxy=*.local, 169.254/16
```
You can see from the above output that the `HTTP_PROXY`, `http_proxy`, and
`no_proxy` environment variables are set. When your proxy configuration changes,
Docker restarts automatically to pick up the new settings. If you have any
containers that you would like to keep running across restarts, you should consider using [restart policies](/engine/reference/run/#restart-policies-restart).
For more information on setting environment variables for running containers,
see [Set environment variables](/engine/reference/commandline/run/#set-environment-variables--e---env---env-file).
#### Network