James Tucker b6713e9bc8 cmd/tailscale/cli: check kubeconfig writability instead of refusing $KUBECONFIG (#20009)
When running under the macOS sandbox, "tailscale configure kubeconfig"
refused outright whenever $KUBECONFIG was set, assuming the path would
not be writable. Yet when $KUBECONFIG was unset it happily relied on the
home-relative-path entitlement to write to ~/.kube/config, so the two
paths made inconsistent assumptions about what the sandbox can reach.

Resolve the kubeconfig path first, then check whether the target file
(or the nearest existing parent directory) is actually writable. Only
report an error if it is not, and include macOS sandbox guidance in that
error since a path outside the home directory is the likely cause. This
lets a $KUBECONFIG that does point under the home directory work, rather
than being rejected unconditionally.

Fixes #20007

Change-Id: I9880363c38b981efaed7e97367851ddacf647be1

Signed-off-by: James Tucker <james@tailscale.com>
2026-06-12 10:48:07 +01:00
2026-06-01 12:09:49 -07:00
2026-06-08 09:58:54 -07:00
2026-06-02 10:59:29 -07:00
2026-06-10 20:44:11 -05:00
2026-06-10 23:07:04 -05:00
2026-06-10 23:07:04 -05:00

Tailscale

https://tailscale.com

Private WireGuard® networks made easy

Overview

This repository contains the majority of Tailscale's open source code. Notably, it includes the tailscaled daemon and the tailscale CLI tool. The tailscaled daemon runs on Linux, Windows, macOS, and to varying degrees on FreeBSD and OpenBSD. The Tailscale iOS and Android apps use this repo's code, but this repo doesn't contain the mobile GUI code.

Other Tailscale repos of note:

For background on which parts of Tailscale are open source and why, see https://tailscale.com/opensource/.

Using

We serve packages for a variety of distros and platforms at https://pkgs.tailscale.com.

Other clients

The macOS, iOS, and Windows clients use the code in this repository but additionally include small GUI wrappers. The GUI wrappers on non-open source platforms are themselves not open source.

Building

We always require the latest Go release, currently Go 1.26. (While we build releases with our Go fork, its use is not required.)

go install tailscale.com/cmd/tailscale{,d}

If you're packaging Tailscale for distribution, use build_dist.sh instead, to burn commit IDs and version info into the binaries:

./build_dist.sh tailscale.com/cmd/tailscale
./build_dist.sh tailscale.com/cmd/tailscaled

If your distro has conventions that preclude the use of build_dist.sh, please do the equivalent of what it does in your distro's way, so that bug reports contain useful version information.

Bugs

Please file any issues about this code or the hosted service on the issue tracker.

Contributing

PRs welcome! But please file bugs. Commit messages should reference bugs.

We require Developer Certificate of Origin Signed-off-by lines in commits.

See commit-messages.md (or skim git log) for our commit message style.

About Us

Tailscale is primarily developed by the people at https://github.com/orgs/tailscale/people. For other contributors, see:

WireGuard is a registered trademark of Jason A. Donenfeld.

Description
No description provided
Readme BSD-3-Clause 195 MiB
Languages
Go 95.6%
C 1.6%
TypeScript 1%
Shell 0.6%
Swift 0.4%
Other 0.6%