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454 lines
10 KiB
Bash
454 lines
10 KiB
Bash
#!/bin/sh
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# Copyright (c) 2021 Tailscale Inc & AUTHORS All rights reserved.
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# Use of this source code is governed by a BSD-style
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# license that can be found in the LICENSE file.
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#
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# This script detects the current operating system, and installs
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# Tailscale according to that OS's conventions.
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set -eu
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# All the code is wrapped in a main function that gets called at the
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# bottom of the file, so that a truncated partial download doesn't end
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# up executing half a script.
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main() {
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# Step 1: detect the current linux distro, version, and packaging system.
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#
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# We rely on a combination of 'uname' and /etc/os-release to find
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# an OS name and version, and from there work out what
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# installation method we should be using.
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#
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# The end result of this step is that the following three
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# variables are populated, if detection was successful.
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OS=""
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VERSION=""
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PACKAGETYPE=""
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APT_KEY_TYPE="" # Only for apt-based distros
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if [ -f /etc/os-release ]; then
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# /etc/os-release populates a number of shell variables. We care about the following:
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# - ID: the short name of the OS (e.g. "debian", "freebsd")
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# - VERSION_ID: the numeric release version for the OS, if any (e.g. "18.04")
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# - VERSION_CODENAME: the codename of the OS release, if any (e.g. "buster")
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. /etc/os-release
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case "$ID" in
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ubuntu)
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OS="$ID"
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VERSION="$VERSION_CODENAME"
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PACKAGETYPE="apt"
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# Third-party keyrings became the preferred method of
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# installation in Ubuntu 20.04.
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if expr "$VERSION_ID" : "2.*" >/dev/null; then
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APT_KEY_TYPE="keyring"
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else
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APT_KEY_TYPE="legacy"
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fi
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;;
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debian)
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OS="$ID"
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VERSION="$VERSION_CODENAME"
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PACKAGETYPE="apt"
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# Third-party keyrings became the preferred method of
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# installation in Debian 11 (Bullseye).
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if [ "$VERSION_ID" -lt 11 ]; then
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APT_KEY_TYPE="legacy"
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else
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APT_KEY_TYPE="keyring"
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fi
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;;
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raspbian)
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OS="$ID"
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VERSION="$VERSION_CODENAME"
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PACKAGETYPE="apt"
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# Third-party keyrings became the preferred method of
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# installation in Raspbian 11 (Bullseye).
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if [ "$VERSION_ID" -lt 11 ]; then
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APT_KEY_TYPE="legacy"
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else
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APT_KEY_TYPE="keyring"
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fi
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;;
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centos)
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OS="$ID"
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VERSION="$VERSION_ID"
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PACKAGETYPE="dnf"
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if [ "$VERSION" = "7" ]; then
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PACKAGETYPE="yum"
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fi
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;;
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ol)
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OS="oracle"
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VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
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PACKAGETYPE="dnf"
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if [ "$VERSION" = "7" ]; then
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PACKAGETYPE="yum"
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fi
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;;
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rhel)
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OS="$ID"
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VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
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PACKAGETYPE="dnf"
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;;
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fedora)
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OS="$ID"
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VERSION=""
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PACKAGETYPE="dnf"
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;;
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amzn)
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OS="amazon-linux"
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VERSION="$VERSION_ID"
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PACKAGETYPE="yum"
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;;
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opensuse-leap)
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OS="opensuse"
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VERSION="leap/$VERSION_ID"
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PACKAGETYPE="zypper"
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;;
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opensuse-tumbleweed)
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OS="opensuse"
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VERSION="tumbleweed"
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PACKAGETYPE="zypper"
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;;
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arch)
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OS="$ID"
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VERSION="" # rolling release
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PACKAGETYPE="pacman"
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;;
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manjaro)
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OS="$ID"
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VERSION="" # rolling release
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PACKAGETYPE="pacman"
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;;
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alpine)
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OS="$ID"
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VERSION="$VERSION_ID"
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PACKAGETYPE="apk"
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;;
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nixos)
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echo "Please add Tailscale to your NixOS configuration directly:"
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echo
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echo "services.tailscale.enable = true;"
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exit 1
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;;
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void)
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OS="$ID"
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VERSION="" # rolling release
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PACKAGETYPE="xbps"
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;;
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gentoo)
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OS="$ID"
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VERSION="" # rolling release
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PACKAGETYPE="emerge"
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;;
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freebsd)
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OS="$ID"
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VERSION="$(echo "$VERSION_ID" | cut -f1 -d.)"
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PACKAGETYPE="pkg"
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;;
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# TODO: wsl?
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# TODO: synology? qnap?
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esac
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fi
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# If we failed to detect something through os-release, consult
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# uname and try to infer things from that.
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if [ -z "$OS" ]; then
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if type uname >/dev/null 2>&1; then
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case "$(uname)" in
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FreeBSD)
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# FreeBSD before 12.2 doesn't have
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# /etc/os-release, so we wouldn't have found it in
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# the os-release probing above.
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OS="freebsd"
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VERSION="$(freebsd-version | cut -f1 -d.)"
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PACKAGETYPE="pkg"
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;;
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OpenBSD)
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OS="openbsd"
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VERSION="$(uname -r)"
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PACKAGETYPE=""
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;;
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Darwin)
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OS="macos"
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VERSION="$(sw_vers -productVersion | cut -f1-2 -d.)"
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PACKAGETYPE="appstore"
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;;
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Linux)
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OS="other-linux"
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VERSION=""
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PACKAGETYPE=""
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;;
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esac
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fi
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fi
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# Step 2: having detected an OS we support, is it one of the
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# versions we support?
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OS_UNSUPPORTED=
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case "$OS" in
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ubuntu)
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if [ "$VERSION" != "xenial" ] && \
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[ "$VERSION" != "bionic" ] && \
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[ "$VERSION" != "eoan" ] && \
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[ "$VERSION" != "focal" ] && \
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[ "$VERSION" != "groovy" ] && \
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[ "$VERSION" != "hirsute" ] && \
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[ "$VERSION" != "impish" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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debian)
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if [ "$VERSION" != "stretch" ] && \
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[ "$VERSION" != "buster" ] && \
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[ "$VERSION" != "bullseye" ] && \
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[ "$VERSION" != "bookworm" ] && \
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[ "$VERSION" != "sid" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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raspbian)
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if [ "$VERSION" != "buster" ] && \
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[ "$VERSION" != "bullseye" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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centos)
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if [ "$VERSION" != "7" ] && \
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[ "$VERSION" != "8" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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oracle)
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if [ "$VERSION" != "7" ] && \
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[ "$VERSION" != "8" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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rhel)
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if [ "$VERSION" != "8" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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amazon-linux)
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if [ "$VERSION" != "2" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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opensuse)
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if [ "$VERSION" != "leap/15.1" ] && \
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[ "$VERSION" != "leap/15.2" ] && \
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[ "$VERSION" != "leap/15.3" ] && \
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[ "$VERSION" != "tumbleweed" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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arch)
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# Rolling release, no version checking needed.
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;;
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manjaro)
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# Rolling release, no version checking needed.
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;;
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alpine)
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# All versions supported, no version checking needed.
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# TODO: is that true? When was tailscale packaged?
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;;
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void)
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# Rolling release, no version checking needed.
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;;
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gentoo)
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# Rolling release, no version checking needed.
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;;
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freebsd)
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if [ "$VERSION" != "12" ] && \
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[ "$VERSION" != "13" ]
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then
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OS_UNSUPPORTED=1
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fi
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;;
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openbsd)
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OS_UNSUPPORTED=1
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;;
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macos)
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# We delegate macOS installation to the app store, it will
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# perform version checks for us.
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;;
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other-linux)
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OS_UNSUPPORTED=1
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;;
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*)
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OS_UNSUPPORTED=1
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;;
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esac
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if [ "$OS_UNSUPPORTED" = "1" ]; then
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case "$OS" in
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other-linux)
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echo "Couldn't determine what kind of Linux is running."
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echo "You could try the static binaries at:"
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echo "https://pkgs.tailscale.com/stable/#static"
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;;
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"")
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echo "Couldn't determine what operating system you're running."
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;;
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*)
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echo "$OS $VERSION isn't supported by this script yet."
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;;
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esac
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echo
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echo "If you'd like us to support your system better, please email support@tailscale.com"
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echo "and tell us what OS you're running."
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echo
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echo "Please include the following information we gathered from your system:"
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echo
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echo "OS=$OS"
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echo "VERSION=$VERSION"
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echo "PACKAGETYPE=$PACKAGETYPE"
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if type uname >/dev/null 2>&1; then
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echo "UNAME=$(uname -a)"
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else
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echo "UNAME="
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fi
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echo
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if [ -f /etc/os-release ]; then
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cat /etc/os-release
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else
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echo "No /etc/os-release"
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fi
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exit 1
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fi
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# Step 3: work out if we can run privileged commands, and if so,
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# how.
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CAN_ROOT=
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SUDO=
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if [ "$(id -u)" = 0 ]; then
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CAN_ROOT=1
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SUDO=""
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elif type sudo >/dev/null; then
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CAN_ROOT=1
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SUDO="sudo"
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elif type doas >/dev/null; then
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CAN_ROOT=1
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SUDO="doas"
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fi
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if [ "$CAN_ROOT" != "1" ]; then
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echo "This installer needs to run commands as root."
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echo "We tried looking for 'sudo' and 'doas', but couldn't find them."
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echo "Either re-run this script as root, or set up sudo/doas."
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exit 1
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fi
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# Step 4: run the installation.
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echo "Installing Tailscale for $OS $VERSION, using method $PACKAGETYPE"
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case "$PACKAGETYPE" in
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apt)
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# Ideally we want to use curl, but on some installs we
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# only have wget. Detect and use what's available.
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CURL=
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if type curl >/dev/null; then
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CURL="curl -fsSL"
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elif type wget >/dev/null; then
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CURL="wget -q -O-"
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fi
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if [ -z "$CURL" ]; then
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echo "The installer needs either curl or wget to download files."
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echo "Please install either curl or wget to proceed."
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exit 1
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fi
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if ! type gpg >/dev/null; then
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echo "The installer needs gnupg to do keyring management."
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echo "Please install gnupg to proceed".
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exit 1
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fi
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set -x
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$SUDO mkdir -p --mode=0755 /usr/share/keyrings
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case "$APT_KEY_TYPE" in
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legacy)
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$CURL "https://pkgs.tailscale.com/stable/$OS/$VERSION.asc" | $SUDO apt-key add -
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$CURL "https://pkgs.tailscale.com/stable/$OS/$VERSION.list" | $SUDO tee /etc/apt/sources.list.d/tailscale.list
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;;
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keyring)
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$CURL "https://pkgs.tailscale.com/stable/$OS/$VERSION.noarmor.gpg" | $SUDO tee /usr/share/keyrings/tailscale-archive-keyring.gpg >/dev/null
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$CURL "https://pkgs.tailscale.com/stable/$OS/$VERSION.tailscale-keyring.list" | $SUDO tee /etc/apt/sources.list.d/tailscale.list
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;;
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esac
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$SUDO apt-get update
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$SUDO apt-get install tailscale
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set +x
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;;
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yum)
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set -x
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$SUDO yum install yum-utils
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$SUDO yum-config-manager --add-repo "https://pkgs.tailscale.com/stable/$OS/$VERSION/tailscale.repo"
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$SUDO yum install tailscale
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$SUDO systemctl enable --now tailscaled
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set +x
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;;
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dnf)
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set -x
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$SUDO dnf config-manager --add-repo "https://pkgs.tailscale.com/stable/$OS/$VERSION/tailscale.repo"
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$SUDO dnf install tailscale
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$SUDO systemctl enable --now tailscaled
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set +x
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;;
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zypper)
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set -x
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$SUDO zypper ar -g -r "https://pkgs.tailscale.com/stable/$OS/$VERSION/tailscale.repo"
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$SUDO zypper ref
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$SUDO zypper in tailscale
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$SUDO systemctl enable --now tailscaled
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set +x
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;;
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pacman)
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set -x
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$SUDO pacman -S tailscale
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$SUDO systemctl enable --now tailscaled
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set +x
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;;
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apk)
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set -x
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$SUDO apk add tailscale
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$SUDO rc-update add tailscale
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set +x
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;;
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xbps)
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set -x
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$SUDO xbps-install tailscale
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set +x
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;;
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emerge)
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set -x
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$SUDO emerge net-vpn/tailscale
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set +x
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;;
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appstore)
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set -x
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open "https://apps.apple.com/us/app/tailscale/id1475387142"
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set +x
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;;
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*)
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echo "unexpected: unknown package type $PACKAGETYPE"
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exit 1
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;;
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esac
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echo "Installation complete! Log in to start using Tailscale by running:"
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echo
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if [ -z "$SUDO" ]; then
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echo "tailscale up"
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else
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echo "$SUDO tailscale up"
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fi
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}
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main
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