Files
tailscale/shell.nix
Brad Fitzpatrick d0fcb668d5 cmd/tailscale/cli: add 'tailscale configure flash-appliance'
Adds a CLI subcommand that downloads a signed Tailscale appliance
image (Gokrazy archive format, GAF) from pkgs.tailscale.com,
constructs a fresh GPT-partitioned disk from it (mbr.img + a
synthesized partition table + boot.img + root.img), formats /perm
as ext4 in pure Go via go-diskfs, and ejects the disk so a user
running on a regular workstation can flash an SD card or homelab
VM disk in one command without installing e2fsprogs.

On macOS the target disk is auto-discovered via diskutil, skipping
the boot disk and anything bigger than 256 GB out of paranoia. On
Linux the user passes --disk=/dev/sdX explicitly. Windows is not
supported yet and the command returns an error.

The GPT layout matches monogok's full-disk layout via the new
public github.com/bradfitz/monogok/disklayout package; a drift-
guard test inside monogok asserts the two implementations stay
byte-identical so OTA updates against monogok-built images keep
working.

Behind a ts_omit_flashappliance build tag (on by default).

Updates #1866

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Change-Id: Ic1a8cd185e7039edccb7702ab4104544fcb58d29
2026-07-01 08:09:50 -07:00

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Nix

# This is a shell.nix file used to describe the environment that
# tailscale needs for development.
#
# For more information about this and why this file is useful, see here:
# https://nixos.org/guides/nix-pills/developing-with-nix-shell.html
#
# Also look into direnv: https://direnv.net/, this can make it so that you can
# automatically get your environment set up when you change folders into the
# project.
(import (
let
lock = builtins.fromJSON (builtins.readFile ./flake.lock);
in fetchTarball {
url = "https://github.com/edolstra/flake-compat/archive/${lock.nodes.flake-compat.locked.rev}.tar.gz";
sha256 = lock.nodes.flake-compat.locked.narHash; }
) {
src = ./.;
}).shellNix
# nix-direnv cache busting line: sha256-OcWKaba80LdWwpL4j2bmQC2w1MchYQtjOE2G9AgOf+0=