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scripts/installer: add TAILSCALE_VERSION environment variable (#18014)

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Add support for pinning specific Tailscale versions during installation
via the TAILSCALE_VERSION environment variable.

Example usage:
  curl -fsSL https://tailscale.com/install.sh | TAILSCALE_VERSION=1.88.4 sh

Fixes #17776

Signed-off-by: Raj Singh <raj@tailscale.com>
This commit is contained in:
Raj Singh
2025-12-02 09:57:21 -06:00
committed by GitHub
parent 22a815b6d2
commit bd5c50909f
2 changed files with 88 additions and 12 deletions
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84
scripts/installer.sh
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@@ -4,6 +4,15 @@
#
# This script detects the current operating system, and installs
# Tailscale according to that OS's conventions.
#
# Environment variables:
# TRACK: Set to "stable" or "unstable" (default: stable)
# TAILSCALE_VERSION: Pin to a specific version (e.g., "1.88.4")
#
# Examples:
# curl -fsSL https://tailscale.com/install.sh | sh
# curl -fsSL https://tailscale.com/install.sh | TAILSCALE_VERSION=1.88.4 sh
# curl -fsSL https://tailscale.com/install.sh | TRACK=unstable sh
set -eu
@@ -25,6 +34,7 @@ main() {
APT_KEY_TYPE="" # Only for apt-based distros
APT_SYSTEMCTL_START=false # Only needs to be true for Kali
TRACK="${TRACK:-stable}"
TAILSCALE_VERSION="${TAILSCALE_VERSION:-}"
case "$TRACK" in
stable|unstable)
@@ -502,7 +512,14 @@ main() {
# Step 4: run the installation.
OSVERSION="$OS"
[ "$VERSION" != "" ] && OSVERSION="$OSVERSION $VERSION"
echo "Installing Tailscale for $OSVERSION, using method $PACKAGETYPE"
# Prepare package name with optional version
PACKAGE_NAME="tailscale"
if [ -n "$TAILSCALE_VERSION" ]; then
echo "Installing Tailscale $TAILSCALE_VERSION for $OSVERSION, using method $PACKAGETYPE"
else
echo "Installing Tailscale for $OSVERSION, using method $PACKAGETYPE"
fi
case "$PACKAGETYPE" in
apt)
export DEBIAN_FRONTEND=noninteractive
@@ -527,7 +544,11 @@ main() {
;;
esac
$SUDO apt-get update
$SUDO apt-get install -y tailscale tailscale-archive-keyring
if [ -n "$TAILSCALE_VERSION" ]; then
$SUDO apt-get install -y "tailscale=$TAILSCALE_VERSION" tailscale-archive-keyring
else
$SUDO apt-get install -y tailscale tailscale-archive-keyring
fi
if [ "$APT_SYSTEMCTL_START" = "true" ]; then
$SUDO systemctl enable --now tailscaled
$SUDO systemctl start tailscaled
@@ -538,7 +559,11 @@ main() {
set -x
$SUDO yum install yum-utils -y
$SUDO yum-config-manager -y --add-repo "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/tailscale.repo"
$SUDO yum install tailscale -y
if [ -n "$TAILSCALE_VERSION" ]; then
$SUDO yum install "tailscale-$TAILSCALE_VERSION" -y
else
$SUDO yum install tailscale -y
fi
$SUDO systemctl enable --now tailscaled
set +x
;;
@@ -578,14 +603,22 @@ main() {
echo "unexpected: unknown dnf version $DNF_VERSION"
exit 1
fi
$SUDO dnf install -y tailscale
if [ -n "$TAILSCALE_VERSION" ]; then
$SUDO dnf install -y "tailscale-$TAILSCALE_VERSION"
else
$SUDO dnf install -y tailscale
fi
$SUDO systemctl enable --now tailscaled
set +x
;;
tdnf)
set -x
curl -fsSL "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/tailscale.repo" > /etc/yum.repos.d/tailscale.repo
$SUDO tdnf install -y tailscale
if [ -n "$TAILSCALE_VERSION" ]; then
$SUDO tdnf install -y "tailscale-$TAILSCALE_VERSION"
else
$SUDO tdnf install -y tailscale
fi
$SUDO systemctl enable --now tailscaled
set +x
;;
@@ -594,19 +627,33 @@ main() {
$SUDO rpm --import "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/repo.gpg"
$SUDO zypper --non-interactive ar -g -r "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/tailscale.repo"
$SUDO zypper --non-interactive --gpg-auto-import-keys refresh
$SUDO zypper --non-interactive install tailscale
if [ -n "$TAILSCALE_VERSION" ]; then
$SUDO zypper --non-interactive install "tailscale=$TAILSCALE_VERSION"
else
$SUDO zypper --non-interactive install tailscale
fi
$SUDO systemctl enable --now tailscaled
set +x
;;
pacman)
set -x
$SUDO pacman -S tailscale --noconfirm
if [ -n "$TAILSCALE_VERSION" ]; then
echo "Warning: Arch Linux maintains their own Tailscale package. Version pinning may not work as expected, as the target version may no longer be available."
$SUDO pacman -S "tailscale=$TAILSCALE_VERSION" --noconfirm
else
$SUDO pacman -S tailscale --noconfirm
fi
$SUDO systemctl enable --now tailscaled
set +x
;;
pkg)
set -x
$SUDO pkg install --yes tailscale
if [ -n "$TAILSCALE_VERSION" ]; then
echo "Warning: FreeBSD maintains their own Tailscale package. Version pinning may not work as expected, as the target version may no longer be available."
$SUDO pkg install --yes "tailscale-$TAILSCALE_VERSION"
else
$SUDO pkg install --yes tailscale
fi
$SUDO service tailscaled enable
$SUDO service tailscaled start
set +x
@@ -621,19 +668,34 @@ main() {
exit 1
fi
fi
$SUDO apk add tailscale
if [ -n "$TAILSCALE_VERSION" ]; then
echo "Warning: Alpine Linux maintains their own Tailscale package. Version pinning may not work as expected, as the target version may no longer be available."
$SUDO apk add "tailscale=$TAILSCALE_VERSION"
else
$SUDO apk add tailscale
fi
$SUDO rc-update add tailscale
$SUDO rc-service tailscale start
set +x
;;
xbps)
set -x
$SUDO xbps-install tailscale -y
if [ -n "$TAILSCALE_VERSION" ]; then
echo "Warning: Void Linux maintains their own Tailscale package. Version pinning may not work as expected, as the target version may no longer be available."
$SUDO xbps-install "tailscale-$TAILSCALE_VERSION" -y
else
$SUDO xbps-install tailscale -y
fi
set +x
;;
emerge)
set -x
$SUDO emerge --ask=n net-vpn/tailscale
if [ -n "$TAILSCALE_VERSION" ]; then
echo "Warning: Gentoo maintains their own Tailscale package. Version pinning may not work as expected, as the target version may no longer be available."
$SUDO emerge --ask=n "=net-vpn/tailscale-$TAILSCALE_VERSION"
else
$SUDO emerge --ask=n net-vpn/tailscale
fi
set +x
;;
appstore)