Support binding frontend/backend to unix sockets

[jayme-github]

This allows the use of strings like "unix:/path/to/socket" as PUBLIC_HOST and/or PRIVATE_HOST.

Signed-off-by: Janis Meybohm meybohm@traum-ferienwohnungen.de

Proposed changes

In some environments (kubernetes for example) securing TCP ports is a little tricky. Supporting unix sockets makes it easy to "hide" the administrative API.

Checklist

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• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation within the code base (if appropriate)
• I have documented my changes in the developer guide (if appropriate)

Further comments

I'm happy to add docs and tests (if applicable) if you're okay with this addition/change. Please let me know.

[aeneasr]

That's a nice addition! Please add some docs so people are able to find out about this. Good places for that would be:

• here
• here (add a new section) or here (also new section)

[aeneasr]

Thank you!