tilt-dev / tilt-dev/tilt

Forwarding from privileged ports (< 1024) not possible without sudo

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#1,909 7 comments 5 reactions 0 assignees View on GitHub

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enhancement
Dominant language
Go
Stars
10.1k
Forks
413
Avg merge
1d 10h
Merged PRs (30d)
6

Description

The docs don't mention anything about port-forwarding from privileged ports on the host. That is, ports less than 1024... On MacOS, for example, I get error in Tilt logs that it could not forward from either ports 80 / 443 (http / https) , but with no clue as to why.. Of course, I figured I have to run tilt up with sudo, and now it works, but I'm afraid of side effects of that.

It could be possible to only elevate privileges when port forwarding from a port < 1024, such as with launchd (for MacOS).
See: https://developer.apple.com/library/archive/documentation/Security/Conceptual/SecureCodingGuide/Articles/AccessControl.html#//apple_ref/doc/uid/TP40002589-SW4
Would be a nice feature to have.

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file, test, or entry point is named in the issue. Start by tracing how Tilt handles host port forwarding and how it reports permission failures on macOS. Done means documenting the privileged-port limitation and deciding whether safe, platform-appropriate elevation is in scope.

Written by the indexing model from the issue text.

Assessment

Tech stack
go, macos
Domain
cli, networking
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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