Headscale Install Debian

install-headscale.sh

#!/bin/bash

set -euo pipefail

apt-get install -y jq || true

# Check required commands
command -v curl >/dev/null || { echo "Error: curl required" >&2; exit 1; }
command -v jq >/dev/null || { echo "Error: jq required" >&2; exit 1; }

# Create temp directory with proper permissions
TMPDIR=$(mktemp -d)
chmod 755 "$TMPDIR"  # Critical: Make directory accessible to _apt user
trap 'rm -rf "$TMPDIR"' EXIT

# Get latest version
API_URL="https://api.github.com/repos/juanfont/headscale/releases/latest"
TAG=$(curl -s "$API_URL" | jq -r '.tag_name')
VERSION="${TAG#v}"  # Remove 'v' prefix

# Get system architecture
ARCH=$(dpkg --print-architecture)

# Build download URL
DEB_URL="https://github.com/juanfont/headscale/releases/download/${TAG}/headscale_${VERSION}_linux_${ARCH}.deb"

# Download package to temp directory
DEB_FILE="${TMPDIR}/headscale.deb"
echo "Downloading headscale ${VERSION} (${ARCH})..."
curl -L -o "$DEB_FILE" "$DEB_URL"
chmod 644 "$DEB_FILE"  # Make .deb file readable by all users

# Install package from temp location
echo "Installing..."
sudo apt install -y "$DEB_FILE"

echo -e "\nInstallation complete!"

sudo systemctl enable headscale
sudo systemctl start headscale