tailscale/scripts/installer.sh
Anton Tolchanov 787fc41fa4 scripts/installer.sh: check connectivity with pkgs.tailscale.com
Installer script relies on pkgs.tailscale.com being reachable, both for
checking what Linux distros are supported, but also for actually
downloading repo configuration files, gpg keys and packages themselves.

This change adds a simple reachability check which will print an error
message when pkgs.tailscale.com is not reachable.

Fixes https://github.com/tailscale/corp/issues/8952

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2023-05-04 16:49:56 +02:00

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#!/bin/sh
# Copyright (c) Tailscale Inc & AUTHORS
# SPDX-License-Identifier: BSD-3-Clause
#
# This script detects the current operating system, and installs
# Tailscale according to that OS's conventions.
set -eu
# All the code is wrapped in a main function that gets called at the
# bottom of the file, so that a truncated partial download doesn't end
# up executing half a script.
main() {
# Step 1: detect the current linux distro, version, and packaging system.
#
# We rely on a combination of 'uname' and /etc/os-release to find
# an OS name and version, and from there work out what
# installation method we should be using.
#
# The end result of this step is that the following three
# variables are populated, if detection was successful.
OS=""
VERSION=""
PACKAGETYPE=""
APT_KEY_TYPE="" # Only for apt-based distros
APT_SYSTEMCTL_START=false # Only needs to be true for Kali
TRACK="${TRACK:-stable}"
case "$TRACK" in
stable|unstable)
;;
*)
echo "unsupported track $TRACK"
exit 1
;;
esac
if [ -f /etc/os-release ]; then
# /etc/os-release populates a number of shell variables. We care about the following:
# - ID: the short name of the OS (e.g. "debian", "freebsd")
# - VERSION_ID: the numeric release version for the OS, if any (e.g. "18.04")
# - VERSION_CODENAME: the codename of the OS release, if any (e.g. "buster")
# - UBUNTU_CODENAME: if it exists, use instead of VERSION_CODENAME
. /etc/os-release
case "$ID" in
ubuntu|pop|neon|zorin)
OS="ubuntu"
if [ "${UBUNTU_CODENAME:-}" != "" ]; then
VERSION="$UBUNTU_CODENAME"
else
VERSION="$VERSION_CODENAME"
fi
PACKAGETYPE="apt"
# Third-party keyrings became the preferred method of
# installation in Ubuntu 20.04.
if expr "$VERSION_ID" : "2.*" >/dev/null; then
APT_KEY_TYPE="keyring"
else
APT_KEY_TYPE="legacy"
fi
;;
debian)
OS="$ID"
VERSION="$VERSION_CODENAME"
PACKAGETYPE="apt"
# Third-party keyrings became the preferred method of
# installation in Debian 11 (Bullseye).
if [ -z "${VERSION_ID:-}" ]; then
# rolling release. If you haven't kept current, that's on you.
APT_KEY_TYPE="keyring"
elif [ "$VERSION_ID" -lt 11 ]; then
APT_KEY_TYPE="legacy"
else
APT_KEY_TYPE="keyring"
fi
;;
linuxmint)
if [ "${UBUNTU_CODENAME:-}" != "" ]; then
OS="ubuntu"
VERSION="$UBUNTU_CODENAME"
elif [ "${DEBIAN_CODENAME:-}" != "" ]; then
OS="debian"
VERSION="$DEBIAN_CODENAME"
else
OS="ubuntu"
VERSION="$VERSION_CODENAME"
fi
PACKAGETYPE="apt"
if [ "$VERSION_ID" -lt 5 ]; then
APT_KEY_TYPE="legacy"
else
APT_KEY_TYPE="keyring"
fi
;;
elementary)
OS="ubuntu"
VERSION="$UBUNTU_CODENAME"
PACKAGETYPE="apt"
if [ "$VERSION_ID" -lt 6 ]; then
APT_KEY_TYPE="legacy"
else
APT_KEY_TYPE="keyring"
fi
;;
parrot|mendel)
OS="debian"
PACKAGETYPE="apt"
if [ "$VERSION_ID" -lt 5 ]; then
VERSION="buster"
APT_KEY_TYPE="legacy"
else
VERSION="bullseye"
APT_KEY_TYPE="keyring"
fi
;;
galliumos)
OS="ubuntu"
PACKAGETYPE="apt"
VERSION="bionic"
APT_KEY_TYPE="legacy"
;;
pureos)
OS="debian"
PACKAGETYPE="apt"
VERSION="bullseye"
APT_KEY_TYPE="keyring"
;;
raspbian)
OS="$ID"
VERSION="$VERSION_CODENAME"
PACKAGETYPE="apt"
# Third-party keyrings became the preferred method of
# installation in Raspbian 11 (Bullseye).
if [ "$VERSION_ID" -lt 11 ]; then
APT_KEY_TYPE="legacy"
else
APT_KEY_TYPE="keyring"
fi
;;
kali)
OS="debian"
PACKAGETYPE="apt"
YEAR="$(echo "$VERSION_ID" | cut -f1 -d.)"
APT_SYSTEMCTL_START=true
# Third-party keyrings became the preferred method of
# installation in Debian 11 (Bullseye), which Kali switched
# to in roughly 2021.x releases
if [ "$YEAR" -lt 2021 ]; then
# Kali VERSION_ID is "kali-rolling", which isn't distinguishing
VERSION="buster"
APT_KEY_TYPE="legacy"
else
VERSION="bullseye"
APT_KEY_TYPE="keyring"
fi
;;
Deepin) # https://github.com/tailscale/tailscale/issues/7862
OS="debian"
PACKAGETYPE="apt"
if [ "$VERSION_ID" -lt 20 ]; then
APT_KEY_TYPE="legacy"
else
APT_KEY_TYPE="keyring"
fi
;;
centos)
OS="$ID"
VERSION="$VERSION_ID"
PACKAGETYPE="dnf"
if [ "$VERSION" = "7" ]; then
PACKAGETYPE="yum"
fi
;;
ol)
OS="oracle"
VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
PACKAGETYPE="dnf"
if [ "$VERSION" = "7" ]; then
PACKAGETYPE="yum"
fi
;;
rhel)
OS="$ID"
VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
PACKAGETYPE="dnf"
if [ "$VERSION" = "7" ]; then
PACKAGETYPE="yum"
fi
;;
fedora)
OS="$ID"
VERSION=""
PACKAGETYPE="dnf"
;;
rocky|almalinux|nobara|openmandriva|sangoma|risios)
OS="fedora"
VERSION=""
PACKAGETYPE="dnf"
;;
amzn)
OS="amazon-linux"
VERSION="$VERSION_ID"
PACKAGETYPE="yum"
;;
xenenterprise)
OS="centos"
VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
PACKAGETYPE="yum"
;;
opensuse-leap|sles)
OS="opensuse"
VERSION="leap/$VERSION_ID"
PACKAGETYPE="zypper"
;;
opensuse-tumbleweed)
OS="opensuse"
VERSION="tumbleweed"
PACKAGETYPE="zypper"
;;
arch|archarm|endeavouros)
OS="arch"
VERSION="" # rolling release
PACKAGETYPE="pacman"
;;
manjaro|manjaro-arm)
OS="manjaro"
VERSION="" # rolling release
PACKAGETYPE="pacman"
;;
alpine)
OS="$ID"
VERSION="$VERSION_ID"
PACKAGETYPE="apk"
;;
postmarketos)
OS="alpine"
VERSION="$VERSION_ID"
PACKAGETYPE="apk"
;;
nixos)
echo "Please add Tailscale to your NixOS configuration directly:"
echo
echo "services.tailscale.enable = true;"
exit 1
;;
void)
OS="$ID"
VERSION="" # rolling release
PACKAGETYPE="xbps"
;;
gentoo)
OS="$ID"
VERSION="" # rolling release
PACKAGETYPE="emerge"
;;
freebsd)
OS="$ID"
VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
PACKAGETYPE="pkg"
;;
osmc)
OS="debian"
PACKAGETYPE="apt"
VERSION="bullseye"
APT_KEY_TYPE="keyring"
;;
photon)
OS="photon"
VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
PACKAGETYPE="tdnf"
;;
# TODO: wsl?
# TODO: synology? qnap?
esac
fi
# If we failed to detect something through os-release, consult
# uname and try to infer things from that.
if [ -z "$OS" ]; then
if type uname >/dev/null 2>&1; then
case "$(uname)" in
FreeBSD)
# FreeBSD before 12.2 doesn't have
# /etc/os-release, so we wouldn't have found it in
# the os-release probing above.
OS="freebsd"
VERSION="$(freebsd-version | cut -f1 -d.)"
PACKAGETYPE="pkg"
;;
OpenBSD)
OS="openbsd"
VERSION="$(uname -r)"
PACKAGETYPE=""
;;
Darwin)
OS="macos"
VERSION="$(sw_vers -productVersion | cut -f1-2 -d.)"
PACKAGETYPE="appstore"
;;
Linux)
OS="other-linux"
VERSION=""
PACKAGETYPE=""
;;
esac
fi
fi
# Ideally we want to use curl, but on some installs we
# only have wget. Detect and use what's available.
CURL=
if type curl >/dev/null; then
CURL="curl -fsSL"
elif type wget >/dev/null; then
CURL="wget -q -O-"
fi
if [ -z "$CURL" ]; then
echo "The installer needs either curl or wget to download files."
echo "Please install either curl or wget to proceed."
exit 1
fi
TEST_URL="https://pkgs.tailscale.com/"
RC=0
TEST_OUT=$($CURL "$TEST_URL" 2>&1) || RC=$?
if [ $RC != 0 ]; then
echo "The installer cannot reach $TEST_URL"
echo "Please make sure that your machine has internet access."
echo "Test output:"
echo $TEST_OUT
exit 1
fi
# Step 2: having detected an OS we support, is it one of the
# versions we support?
OS_UNSUPPORTED=
case "$OS" in
ubuntu|debian|raspbian|centos|oracle|rhel|amazon-linux|opensuse|photon)
# Check with the package server whether a given version is supported.
URL="https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/installer-supported"
$CURL "$URL" 2> /dev/null | grep -q OK || OS_UNSUPPORTED=1
;;
fedora)
# All versions supported, no version checking required.
;;
arch)
# Rolling release, no version checking needed.
;;
manjaro)
# Rolling release, no version checking needed.
;;
alpine)
# All versions supported, no version checking needed.
# TODO: is that true? When was tailscale packaged?
;;
void)
# Rolling release, no version checking needed.
;;
gentoo)
# Rolling release, no version checking needed.
;;
freebsd)
if [ "$VERSION" != "12" ] && \
[ "$VERSION" != "13" ]
then
OS_UNSUPPORTED=1
fi
;;
openbsd)
OS_UNSUPPORTED=1
;;
macos)
# We delegate macOS installation to the app store, it will
# perform version checks for us.
;;
other-linux)
OS_UNSUPPORTED=1
;;
*)
OS_UNSUPPORTED=1
;;
esac
if [ "$OS_UNSUPPORTED" = "1" ]; then
case "$OS" in
other-linux)
echo "Couldn't determine what kind of Linux is running."
echo "You could try the static binaries at:"
echo "https://pkgs.tailscale.com/$TRACK/#static"
;;
"")
echo "Couldn't determine what operating system you're running."
;;
*)
echo "$OS $VERSION isn't supported by this script yet."
;;
esac
echo
echo "If you'd like us to support your system better, please email support@tailscale.com"
echo "and tell us what OS you're running."
echo
echo "Please include the following information we gathered from your system:"
echo
echo "OS=$OS"
echo "VERSION=$VERSION"
echo "PACKAGETYPE=$PACKAGETYPE"
if type uname >/dev/null 2>&1; then
echo "UNAME=$(uname -a)"
else
echo "UNAME="
fi
echo
if [ -f /etc/os-release ]; then
cat /etc/os-release
else
echo "No /etc/os-release"
fi
exit 1
fi
# Step 3: work out if we can run privileged commands, and if so,
# how.
CAN_ROOT=
SUDO=
if [ "$(id -u)" = 0 ]; then
CAN_ROOT=1
SUDO=""
elif type sudo >/dev/null; then
CAN_ROOT=1
SUDO="sudo"
elif type doas >/dev/null; then
CAN_ROOT=1
SUDO="doas"
fi
if [ "$CAN_ROOT" != "1" ]; then
echo "This installer needs to run commands as root."
echo "We tried looking for 'sudo' and 'doas', but couldn't find them."
echo "Either re-run this script as root, or set up sudo/doas."
exit 1
fi
# Step 4: run the installation.
OSVERSION="$OS"
[ "$VERSION" != "" ] && OSVERSION="$OSVERSION $VERSION"
echo "Installing Tailscale for $OSVERSION, using method $PACKAGETYPE"
case "$PACKAGETYPE" in
apt)
export DEBIAN_FRONTEND=noninteractive
if [ "$APT_KEY_TYPE" = "legacy" ] && ! type gpg >/dev/null; then
$SUDO apt-get update
$SUDO apt-get install -y gnupg
fi
set -x
$SUDO mkdir -p --mode=0755 /usr/share/keyrings
case "$APT_KEY_TYPE" in
legacy)
$CURL "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION.asc" | $SUDO apt-key add -
$CURL "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION.list" | $SUDO tee /etc/apt/sources.list.d/tailscale.list
;;
keyring)
$CURL "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION.noarmor.gpg" | $SUDO tee /usr/share/keyrings/tailscale-archive-keyring.gpg >/dev/null
$CURL "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION.tailscale-keyring.list" | $SUDO tee /etc/apt/sources.list.d/tailscale.list
;;
esac
$SUDO apt-get update
$SUDO apt-get install -y tailscale tailscale-archive-keyring
if [ "$APT_SYSTEMCTL_START" = "true" ]; then
$SUDO systemctl enable --now tailscaled
$SUDO systemctl start tailscaled
fi
set +x
;;
yum)
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
$SUDO systemctl enable --now tailscaled
set +x
;;
dnf)
set -x
$SUDO dnf install -y 'dnf-command(config-manager)'
$SUDO dnf config-manager --add-repo "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/tailscale.repo"
$SUDO dnf install -y tailscale
$SUDO systemctl enable --now tailscaled
set +x
;;
tdnf)
set -x
curl -fsSL "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/tailscale.repo" > /etc/yum.repos.d/tailscale.repo
$SUDO tdnf install -y tailscale
$SUDO systemctl enable --now tailscaled
set +x
;;
zypper)
set -x
$SUDO zypper --non-interactive ar -g -r "https://pkgs.tailscale.com/$TRACK/$OS/$VERSION/tailscale.repo"
$SUDO zypper --non-interactive --gpg-auto-import-keys refresh
$SUDO zypper --non-interactive install tailscale
$SUDO systemctl enable --now tailscaled
set +x
;;
pacman)
set -x
$SUDO pacman -Sy
$SUDO pacman -S tailscale --noconfirm
$SUDO systemctl enable --now tailscaled
set +x
;;
pkg)
set -x
$SUDO pkg install tailscale
$SUDO service tailscaled enable
$SUDO service tailscaled start
set +x
;;
apk)
set -x
$SUDO apk add tailscale
$SUDO rc-update add tailscale
set +x
;;
xbps)
set -x
$SUDO xbps-install tailscale -y
set +x
;;
emerge)
set -x
$SUDO emerge --ask=n net-vpn/tailscale
set +x
;;
appstore)
set -x
open "https://apps.apple.com/us/app/tailscale/id1475387142"
set +x
;;
*)
echo "unexpected: unknown package type $PACKAGETYPE"
exit 1
;;
esac
echo "Installation complete! Log in to start using Tailscale by running:"
echo
if [ -z "$SUDO" ]; then
echo "tailscale up"
else
echo "$SUDO tailscale up"
fi
}
main