Update docs for retry_join cloud discovery to include snippet around (#3577)

using HTTP_PROXY, HTTPS_PROXY and NO_PROXY env vars when needed
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Christopher "Chief" Najewicz 2017-10-17 19:05:44 -04:00 committed by James Phillips
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@ -265,6 +265,10 @@ will exit with an error at startup.
combined with static IP or DNS addresses or even multiple configurations combined with static IP or DNS addresses or even multiple configurations
for different providers. for different providers.
In order to use discovery behind a proxy, you will need to set
`HTTP_PROXY`, `HTTPS_PROXY` and `NO_PROXY` environment variables per
[Golang `net/http` library](https://golang.org/pkg/net/http/#ProxyFromEnvironment).
The following sections give the options specific to each supported cloud The following sections give the options specific to each supported cloud
provider. provider.