lots of stuff man
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43 changed files with 7310 additions and 121 deletions
494
scripts/setup_layer_5_headscale.sh
Executable file
494
scripts/setup_layer_5_headscale.sh
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#!/bin/bash
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###############################################################################
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# Layer 5: VPN Infrastructure (Headscale)
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#
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# This script deploys Headscale and optionally joins machines to the mesh.
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# Must be run after Layers 0, 1A, and 3 are complete.
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# THIS LAYER IS OPTIONAL - skip to Layer 6 if you don't need VPN.
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###############################################################################
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set -e # Exit on error
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Project root directory
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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PROJECT_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
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ANSIBLE_DIR="$PROJECT_ROOT/ansible"
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###############################################################################
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# Helper Functions
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###############################################################################
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print_header() {
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echo -e "\n${BLUE}========================================${NC}"
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echo -e "${BLUE}$1${NC}"
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echo -e "${BLUE}========================================${NC}\n"
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}
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print_success() {
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echo -e "${GREEN}✓${NC} $1"
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}
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print_error() {
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echo -e "${RED}✗${NC} $1"
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}
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print_warning() {
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echo -e "${YELLOW}⚠${NC} $1"
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}
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print_info() {
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echo -e "${BLUE}ℹ${NC} $1"
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}
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confirm_action() {
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local prompt="$1"
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local response
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read -p "$(echo -e ${YELLOW}${prompt}${NC} [y/N]: )" response
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[[ "$response" =~ ^[Yy]$ ]]
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}
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###############################################################################
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# Verification Functions
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###############################################################################
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check_prerequisites() {
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print_header "Verifying Prerequisites"
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local errors=0
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if [ -z "$VIRTUAL_ENV" ]; then
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print_error "Virtual environment not activated"
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echo "Run: source venv/bin/activate"
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((errors++))
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else
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print_success "Virtual environment activated"
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fi
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if ! command -v ansible &> /dev/null; then
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print_error "Ansible not found"
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((errors++))
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else
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print_success "Ansible found"
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fi
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if [ ! -f "$ANSIBLE_DIR/inventory.ini" ]; then
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print_error "inventory.ini not found"
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((errors++))
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else
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print_success "inventory.ini exists"
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fi
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# Check if spacey is configured
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if ! grep -q "^\[spacey\]" "$ANSIBLE_DIR/inventory.ini"; then
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print_error "spacey not configured in inventory.ini"
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print_info "Layer 5 requires spacey VPS for Headscale server"
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((errors++))
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else
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print_success "spacey configured in inventory"
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fi
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if [ $errors -gt 0 ]; then
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print_error "Prerequisites not met"
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exit 1
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fi
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print_success "Prerequisites verified"
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}
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get_hosts_from_inventory() {
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local group="$1"
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cd "$ANSIBLE_DIR"
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ansible-inventory -i inventory.ini --list | \
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python3 -c "import sys, json; data=json.load(sys.stdin); print(' '.join(data.get('$group', {}).get('hosts', [])))" 2>/dev/null || echo ""
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}
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check_vars_files() {
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print_header "Checking Configuration Files"
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# Check services_config.yml
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if [ ! -f "$ANSIBLE_DIR/services_config.yml" ]; then
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print_error "services_config.yml not found"
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print_info "This file should have been created in Layer 0"
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exit 1
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fi
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print_success "services_config.yml exists"
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# Show configured subdomain
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local hs_sub=$(grep "^ headscale:" "$ANSIBLE_DIR/services_config.yml" | awk '{print $2}' 2>/dev/null || echo "headscale")
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print_info "Configured subdomain: headscale: $hs_sub"
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echo ""
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}
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check_dns_configuration() {
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print_header "Validating DNS Configuration"
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cd "$ANSIBLE_DIR"
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# Get spacey IP
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local spacey_ip=$(ansible-inventory -i inventory.ini --list | python3 -c "import sys, json; data=json.load(sys.stdin); hosts=data.get('spacey', {}).get('hosts', []); print(hosts[0] if hosts else '')" 2>/dev/null)
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if [ -z "$spacey_ip" ]; then
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print_error "Could not determine spacey IP from inventory"
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return 1
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fi
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print_info "Spacey IP: $spacey_ip"
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echo ""
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# Get domain from infra_vars.yml
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local root_domain=$(grep "^root_domain:" "$ANSIBLE_DIR/infra_vars.yml" | awk '{print $2}' 2>/dev/null)
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if [ -z "$root_domain" ]; then
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print_error "Could not determine root_domain from infra_vars.yml"
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return 1
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fi
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# Get subdomain from centralized config
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local headscale_subdomain="headscale"
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if [ -f "$ANSIBLE_DIR/services_config.yml" ]; then
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headscale_subdomain=$(grep "^ headscale:" "$ANSIBLE_DIR/services_config.yml" | awk '{print $2}' 2>/dev/null || echo "headscale")
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fi
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local headscale_fqdn="${headscale_subdomain}.${root_domain}"
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print_info "Checking DNS record..."
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echo ""
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# Check Headscale DNS
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print_info "Checking $headscale_fqdn..."
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if command -v dig &> /dev/null; then
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local resolved=$(dig +short "$headscale_fqdn" | head -n1)
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if [ "$resolved" = "$spacey_ip" ]; then
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print_success "$headscale_fqdn → $resolved ✓"
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elif [ -n "$resolved" ]; then
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print_error "$headscale_fqdn → $resolved (expected $spacey_ip)"
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print_warning "DNS changes can take time to propagate (up to 24-48 hours)"
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echo ""
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if ! confirm_action "Continue anyway? (SSL certificates will fail without proper DNS)"; then
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exit 1
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fi
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else
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print_error "$headscale_fqdn does not resolve"
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print_warning "DNS changes can take time to propagate"
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echo ""
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if ! confirm_action "Continue anyway? (SSL certificates will fail without proper DNS)"; then
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exit 1
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fi
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fi
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else
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print_warning "dig command not found, skipping DNS validation"
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print_info "Install dnsutils/bind-tools to enable DNS validation"
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fi
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echo ""
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print_success "DNS validation complete"
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}
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###############################################################################
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# Headscale Deployment
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###############################################################################
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deploy_headscale() {
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print_header "Deploying Headscale Server"
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cd "$ANSIBLE_DIR"
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print_info "This will:"
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echo " • Install Headscale on spacey"
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echo " • Configure with deny-all ACL policy (you customize later)"
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echo " • Create namespace for your network"
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echo " • Set up Caddy reverse proxy"
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echo " • Configure embedded DERP server"
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echo ""
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print_warning "After deployment, you MUST configure ACL policies for machines to communicate"
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echo ""
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if ! confirm_action "Proceed with Headscale deployment?"; then
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print_warning "Skipped Headscale deployment"
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return 1
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fi
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print_info "Running: ansible-playbook -i inventory.ini services/headscale/deploy_headscale_playbook.yml"
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echo ""
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if ansible-playbook -i inventory.ini services/headscale/deploy_headscale_playbook.yml; then
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print_success "Headscale deployment complete"
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return 0
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else
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print_error "Headscale deployment failed"
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return 1
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fi
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}
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###############################################################################
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# Join Machines to Mesh
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###############################################################################
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join_machines_to_mesh() {
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print_header "Join Machines to Mesh (Optional)"
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cd "$ANSIBLE_DIR"
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print_info "This will install Tailscale client and join machines to your Headscale mesh"
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echo ""
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# Show available hosts
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echo "Available hosts to join:"
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for group in vipy watchtower nodito lapy; do
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local hosts=$(get_hosts_from_inventory "$group")
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if [ -n "$hosts" ]; then
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echo " [$group]: $hosts"
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fi
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done
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echo ""
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print_info "Join options:"
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echo " 1. Join recommended machines (vipy, watchtower, nodito)"
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echo " 2. Join all machines"
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echo " 3. Custom selection (specify groups)"
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echo " 4. Skip - join machines later manually"
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echo ""
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echo -e -n "${BLUE}Choose option${NC} [1-4]: "
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read option
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local limit_hosts=""
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case "$option" in
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1)
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limit_hosts="vipy,watchtower,nodito"
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print_info "Joining: vipy, watchtower, nodito"
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;;
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2)
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limit_hosts="all"
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print_info "Joining: all hosts"
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;;
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3)
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echo -e -n "${BLUE}Enter groups (comma-separated, e.g., vipy,watchtower)${NC}: "
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read limit_hosts
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print_info "Joining: $limit_hosts"
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;;
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4)
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print_warning "Skipping machine join - you can join manually later"
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print_info "To join manually:"
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echo " ansible-playbook -i inventory.ini infra/920_join_headscale_mesh.yml --limit <host>"
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return 0
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;;
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*)
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print_error "Invalid option"
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return 0
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;;
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esac
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echo ""
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if ! confirm_action "Proceed with joining machines?"; then
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print_warning "Skipped joining machines"
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return 0
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fi
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print_info "Running: ansible-playbook -i inventory.ini infra/920_join_headscale_mesh.yml --limit $limit_hosts"
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echo ""
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if ansible-playbook -i inventory.ini infra/920_join_headscale_mesh.yml --limit "$limit_hosts"; then
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print_success "Machines joined to mesh"
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return 0
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else
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print_error "Failed to join some machines"
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print_info "You can retry or join manually later"
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return 0
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fi
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}
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###############################################################################
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# Backup Configuration
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###############################################################################
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setup_headscale_backup() {
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print_header "Setting Up Headscale Backup (Optional)"
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cd "$ANSIBLE_DIR"
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print_info "This will set up automated backups to lapy"
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echo ""
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if ! confirm_action "Set up Headscale backup to lapy?"; then
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print_warning "Skipped backup setup"
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return 0
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fi
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# Check if rsync is available
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print_info "Verifying rsync is installed on spacey and lapy..."
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if ! ansible spacey -i inventory.ini -m shell -a "command -v rsync" &>/dev/null; then
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print_error "rsync not found on spacey"
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print_info "Run Layer 2 to install rsync"
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print_warning "Backup setup skipped - rsync not available"
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return 0
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fi
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print_info "Running: ansible-playbook -i inventory.ini services/headscale/setup_backup_headscale_to_lapy.yml"
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echo ""
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if ansible-playbook -i inventory.ini services/headscale/setup_backup_headscale_to_lapy.yml; then
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print_success "Headscale backup configured"
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print_info "Backups will run periodically via cron"
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return 0
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else
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print_error "Backup setup failed"
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return 0
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fi
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}
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###############################################################################
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# Verification Functions
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###############################################################################
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verify_deployment() {
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print_header "Verifying Headscale Deployment"
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cd "$ANSIBLE_DIR"
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local ssh_key=$(grep "ansible_ssh_private_key_file" "$ANSIBLE_DIR/inventory.ini" | head -n1 | sed 's/.*ansible_ssh_private_key_file=\([^ ]*\).*/\1/')
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ssh_key="${ssh_key/#\~/$HOME}"
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local spacey_host=$(get_hosts_from_inventory "spacey")
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if [ -z "$spacey_host" ]; then
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print_error "Could not determine spacey host"
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return
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fi
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print_info "Checking Headscale on spacey ($spacey_host)..."
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echo ""
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# Check Headscale service
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if timeout 5 ssh -i "$ssh_key" -o StrictHostKeyChecking=no -o BatchMode=yes counterweight@$spacey_host "systemctl is-active headscale" &>/dev/null; then
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print_success "Headscale service running"
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else
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print_warning "Headscale service not running"
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fi
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# Check Caddy config
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if timeout 5 ssh -i "$ssh_key" -o StrictHostKeyChecking=no -o BatchMode=yes counterweight@$spacey_host "test -f /etc/caddy/sites-enabled/headscale.conf" &>/dev/null; then
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print_success "Headscale Caddy config exists"
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else
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print_warning "Headscale Caddy config not found"
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fi
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# Check ACL file
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if timeout 5 ssh -i "$ssh_key" -o StrictHostKeyChecking=no -o BatchMode=yes counterweight@$spacey_host "test -f /etc/headscale/acl.json" &>/dev/null; then
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print_success "ACL policy file exists"
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else
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print_warning "ACL policy file not found"
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fi
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# List nodes
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print_info "Attempting to list connected nodes..."
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local nodes_output=$(timeout 5 ssh -i "$ssh_key" -o StrictHostKeyChecking=no -o BatchMode=yes counterweight@$spacey_host "sudo headscale nodes list" 2>/dev/null || echo "")
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if [ -n "$nodes_output" ]; then
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echo "$nodes_output"
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else
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print_warning "Could not list nodes (this is normal if no machines joined yet)"
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fi
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echo ""
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}
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###############################################################################
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# Summary Functions
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###############################################################################
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print_summary() {
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print_header "Layer 5 Setup Complete! 🎉"
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echo "Summary of what was configured:"
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echo ""
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print_success "Headscale VPN server deployed on spacey"
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print_success "Caddy reverse proxy configured"
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print_success "Namespace created for your network"
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echo ""
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print_warning "CRITICAL POST-DEPLOYMENT STEPS:"
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echo ""
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echo "1. Configure ACL Policies (REQUIRED for machines to communicate):"
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echo " • SSH to spacey: ssh counterweight@<spacey-ip>"
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echo " • Edit ACL: sudo nano /etc/headscale/acl.json"
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echo " • Add rules to allow communication"
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echo " • Restart: sudo systemctl restart headscale"
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echo ""
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echo "2. Verify machines joined (if you selected that option):"
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echo " • SSH to spacey: ssh counterweight@<spacey-ip>"
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echo " • List nodes: sudo headscale nodes list"
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echo ""
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echo "3. Join additional machines (mobile, desktop):"
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echo " • Generate key: sudo headscale preauthkeys create --user <namespace> --reusable"
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echo " • On device: tailscale up --login-server https://<headscale-domain> --authkey <key>"
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echo ""
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print_info "What Headscale enables:"
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echo " • Secure mesh networking between all machines"
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echo " • Magic DNS - access machines by hostname"
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echo " • NAT traversal - works behind firewalls"
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echo " • Self-hosted Tailscale alternative"
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echo ""
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print_info "Next steps:"
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echo " 1. Configure ACL policies on spacey"
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echo " 2. Verify nodes are connected"
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echo " 3. Proceed to Layer 6: ./scripts/setup_layer_6_infra_monitoring.sh"
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echo ""
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}
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###############################################################################
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# Main Execution
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###############################################################################
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main() {
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clear
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print_header "🔐 Layer 5: VPN Infrastructure (Headscale)"
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echo "This script will deploy Headscale for secure mesh networking."
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echo ""
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print_warning "THIS LAYER IS OPTIONAL"
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print_info "Skip to Layer 6 if you don't need VPN mesh networking"
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echo ""
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if ! confirm_action "Continue with Layer 5 setup?"; then
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echo "Setup skipped - proceeding to Layer 6 is fine!"
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exit 0
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fi
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check_prerequisites
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check_vars_files
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check_dns_configuration
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# Deploy Headscale
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if deploy_headscale; then
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echo ""
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join_machines_to_mesh
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echo ""
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setup_headscale_backup
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echo ""
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verify_deployment
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print_summary
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else
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print_error "Headscale deployment failed"
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exit 1
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fi
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}
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# Run main function
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main "$@"
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