So if I recall correctly, and this may be hopelessly outdated arcane information from 3+ years ago at this point, historically the labtest realm had access to the production private network (and in fact the only way to SSH in was by using production hosts as a bastion), and this may have been a solution to that.
On Tue, 12 Nov 2019 at 16:37, Andrew Bogott abogott@wikimedia.org wrote:
Hello Chase! I hope all is well with you and yours. I have a couple of questions about networking which you may or may not have opinions or thoughts about :)
We've been butting our heads against the inability of VMs in the -dev cloud to talk to outside networks. When Jason and Arturo looked at ways to open that up, they ran into several code comments from you expressing unspecific worries about security concerns with allowing that traffic. Do you remember what those concerns were? If it was just a matter of 'we don't need this anyway' then we might go ahead and allow that traffic, but I want to make sure we aren't overlooking some grave danger.
Related to that -- it's clear that in the past there was an apt proxy running someplace to allow labtest VMs to connect to apt repos. Do you remember how that proxy was set up? I think it must not have been puppetized because I can't find any traces of it in the git history for the box it was surely running on. (Obviously this is moot if we open up the routing.)
Thanks!
-A
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