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Merge pull request #8061 from ChaosGramer/patch-1 

Adding proxy wildcard documentation
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L-Hudson 2019-01-28 12:55:49 -05:00 committed by GitHub
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config/daemon/systemd.md
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@ -96,18 +96,34 @@ you need to add this configuration in the Docker systemd service file.
```
3. If you have internal Docker registries that you need to contact without
proxying you can specify them via the `NO_PROXY` environment variable:
proxying you can specify them via the `NO_PROXY` environment variable.
The `NO_PROXY` variable specifies a string that contains comma-separated
values for hosts that should be excluded from proxying. These are the
options you can specify to exclude hosts:
* IP address prefix (`1.2.3.4`) or in CIDR notation (`1.2.3.4/8`)
* Domain name, or a special DNS label (`*`)
* A domain name matches that name and all subdomains. A domain name with
a leading "." matches subdomains only. For example, given the domains
`foo.example.com` and `example.com`:
* `example.com` matches `example.com` and `foo.example.com`, and
* `.example.com` matches only `foo.example.com`
* A single asterisk (`*`) indicates that no proxying should be done
* Literal port numbers are accepted by IP address prefixes (`1.2.3.4:80`)
and domain names (`foo.example.com:80`)
Config examples:
```conf
[Service]
Environment="HTTP_PROXY=http://proxy.example.com:80/" "NO_PROXY=localhost,127.0.0.1,docker-registry.somecorporation.com"
Environment="HTTP_PROXY=http://proxy.example.com:80/" "NO_PROXY=localhost,127.0.0.1,docker-registry.example.com,.corp"
```
Or, if you are behind an HTTPS proxy server:
```conf
[Service]
Environment="HTTPS_PROXY=https://proxy.example.com:443/" "NO_PROXY=localhost,127.0.0.1,docker-registry.somecorporation.com"
Environment="HTTPS_PROXY=https://proxy.example.com:443/" "NO_PROXY=localhost,127.0.0.1,docker-registry.example.com,.corp"
```
4. Flush changes: