[MESOS-4130] Document how the fetcher can reach across a proxy connection.

• Type: Documentation
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Component/s: fetcher
• Labels: mesosphere newbie
• Target Version/s: 0.27.0
• Story Points: 1
• Assignee: Shuai Lin
• Reporter: Bernd Mathiske
• Created: 11/Dec/15 09:44
• Updated: 26/Nov/18 12:20
• Resolved: 26/Nov/18 12:20

Description

The fetcher uses libcurl for downloading content from HTTP, HTTPS, etc. There is no source code in the pertinent parts of "net.hpp" that deals with proxy settings. However, libcurl automatically picks up certain environment variables and adjusts its settings accordingly. See "man libcurl-tutorial" for details. See section "Proxies", subsection "Environment Variables". If you follow this recipe in your Mesos agent startup script, you can use a proxy.

We should document this in the fetcher (cache) doc (http://mesos.apache.org/documentation/latest/fetcher/).