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Add Docker Compose and Traefik configuration for Pangolin stack
This commit is contained in:
Peter Wood
372
pangolin/add_domain.sh
Executable file
372
pangolin/add_domain.sh
Executable file
@@ -0,0 +1,372 @@
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#!/bin/bash
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# Script to add domains to Pangolin's config.yml file with validation and automatic restart
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# Usage: ./add_domain.sh domain_name cert_resolver
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# Set constants
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readonly CONFIG_FILE="./config/config.yml"
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readonly BACKUP_FILE="./config/config.yml.bak"
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readonly DEFAULT_CERT_RESOLVER="letsencrypt"
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# Colors for terminal output
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readonly RED='\033[0;31m'
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readonly GREEN='\033[0;32m'
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readonly YELLOW='\033[0;33m'
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readonly BLUE='\033[0;34m'
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readonly NC='\033[0m' # No Color
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# Logging functions
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log_info() {
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echo -e "${BLUE}[INFO]${NC} $1"
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}
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log_success() {
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echo -e "${GREEN}[SUCCESS]${NC} $1"
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}
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log_warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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log_error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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# Function to check if a command exists
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command_exists() {
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command -v "$1" &> /dev/null
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}
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# Function to validate domain name format
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validate_domain_format() {
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local domain="$1"
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# Check if the domain matches a basic domain format
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if ! [[ "$domain" =~ ^[a-zA-Z0-9][a-zA-Z0-9-]{1,61}[a-zA-Z0-9]\.[a-zA-Z]{2,}(\.[a-zA-Z]{2,})?$ ]]; then
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log_error "Invalid domain format. Please enter a valid domain like 'example.com'"
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return 1
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fi
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return 0
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}
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# Function to check DNS resolution - optimized to try tools in order of preference
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check_dns_resolution() {
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local domain="$1"
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local ip=""
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log_info "Checking if domain '$domain' is properly configured in DNS..."
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# Use the best available DNS checking tool
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if command_exists dig; then
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ip=$(dig +short "$domain" A | head -1)
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elif command_exists nslookup; then
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ip=$(nslookup "$domain" | grep 'Address:' | tail -1 | awk '{print $2}')
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elif command_exists host; then
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log_warning "'dig' and 'nslookup' not found, using basic 'host' command which may be less reliable."
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ip=$(host "$domain" | grep 'has address' | head -1 | awk '{print $4}')
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else
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log_warning "No DNS resolution tools found (dig, nslookup, or host). Skipping DNS check."
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return 0
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fi
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if [[ -z "$ip" || ! "$ip" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
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log_warning "Domain '$domain' does not resolve to an IP address."
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log_warning "The domain should have an A or AAAA record pointing to your server IP address."
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# Ask user if they want to proceed despite DNS warning
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read -p "Do you want to proceed anyway? (y/n): " proceed
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if [[ ! "$proceed" =~ ^[Yy]$ ]]; then
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log_error "Operation canceled. Please configure DNS properly and try again."
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return 1
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fi
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else
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log_success "Domain '$domain' resolves to IP: $ip"
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fi
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return 0
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}
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# Function to validate a domain (format and DNS)
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validate_domain() {
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local domain="$1"
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if ! validate_domain_format "$domain"; then
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return 1
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fi
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if ! check_dns_resolution "$domain"; then
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return 1
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fi
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return 0
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}
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# Function to check if the Pangolin stack is running
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is_stack_running() {
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docker compose ps | grep -q 'pangolin'
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}
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# Function to wait for stack to be ready - extracted to avoid code duplication
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wait_for_stack() {
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local timeout=30
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local counter=0
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log_info "Waiting for stack to be ready..."
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while ((counter < timeout)); do
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if docker compose ps | grep -q 'pangolin' && docker compose ps | grep -q -v 'starting'; then
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log_success "Pangolin stack is ready!"
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return 0
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fi
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echo -n "."
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sleep 2
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((counter+=1))
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done
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log_error "Timeout waiting for stack to be ready. Please check your logs."
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return 1
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}
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# Function to restart the Pangolin stack
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restart_stack() {
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log_info "Restarting Pangolin stack..."
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if is_stack_running; then
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docker compose down
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sleep 2
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docker compose up -d
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wait_for_stack
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else
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log_info "Pangolin stack wasn't running. Starting it now..."
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docker compose up -d
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wait_for_stack
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fi
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}
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# Function to check if the domain already exists in the config
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domain_exists() {
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local domain="$1"
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grep -q "base_domain: \"$domain\"" "$CONFIG_FILE"
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}
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# Function to get the next domain number
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get_next_domain_number() {
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local highest_num=0
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# Find the highest domain number
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while read -r line; do
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if [[ "$line" =~ domain([0-9]+): ]]; then
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num="${BASH_REMATCH[1]}"
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if ((num > highest_num)); then
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highest_num=$num
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fi
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fi
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done < <(grep "^ domain[0-9]\+:" "$CONFIG_FILE")
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echo $((highest_num + 1))
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}
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# Function to fix misplaced domains
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fix_misplaced_domains() {
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log_info "Checking for misplaced domain entries..."
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# Check for misplaced domain entries outside the domains section
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local misplaced=$(grep -n "domain[0-9]\+:" "$CONFIG_FILE" | grep -v "^[0-9]\+:domains:" | grep -v "^[0-9]\+: domain[0-9]\+:")
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if [ -n "$misplaced" ]; then
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log_warning "Found misplaced domain entries outside the domains section:"
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echo "$misplaced"
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# Ask user if they want to fix the misplaced domains
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read -p "Do you want to fix these misplaced domains? (y/n): " fix_domains
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if [[ "$fix_domains" =~ ^[Yy]$ ]]; then
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log_info "Creating a fixed config file..."
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# Extract all domain entries from the misplaced location
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local extracted_domains=$(awk '
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/^[[:space:]]+domain[0-9]+:/ && !/^[[:space:]]+domain[0-9]+:.*domains:/ {
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in_domain = 1
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domain_name = $0
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print domain_name
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next
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}
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in_domain == 1 && /^[[:space:]]+base_domain:/ {
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base_domain = $0
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print base_domain
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next
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}
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in_domain == 1 && /^[[:space:]]+cert_resolver:/ {
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cert_resolver = $0
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print cert_resolver
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in_domain = 0
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next
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}' "$CONFIG_FILE")
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if [ -n "$extracted_domains" ]; then
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log_info "Extracted domains:"
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echo "$extracted_domains"
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# Remove misplaced domains from the config
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sed -i '/^[[:space:]]\+domain[0-9]\+:/,/^[[:space:]]\+cert_resolver:.*$/d' "$CONFIG_FILE"
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# Check if domains section exists
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if grep -q "^domains:" "$CONFIG_FILE"; then
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log_info "Adding extracted domains to the domains section..."
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# Find the end of the domains section
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local domains_end=$(awk '/^domains:/{in_domains=1} in_domains==1 && /^[a-zA-Z][^:]*:/ && !/^domains:/{print NR-1; exit}' "$CONFIG_FILE")
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if [ -z "$domains_end" ]; then
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domains_end=$(wc -l < "$CONFIG_FILE")
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fi
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# Insert the extracted domains at the end of the domains section
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sed -i "${domains_end}a\\$(echo "$extracted_domains" | sed 's/^/ /')" "$CONFIG_FILE"
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else
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log_info "Creating domains section with extracted domains..."
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# Find a good spot to insert the domains section (after app section)
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local app_end=$(awk '/^app:/{in_app=1} in_app==1 && /^[a-zA-Z][^:]*:/ && !/^app:/{print NR-1; exit}' "$CONFIG_FILE")
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if [ -z "$app_end" ]; then
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app_end=1
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fi
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# Insert the domains section with the extracted domains
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sed -i "${app_end}a\\domains:\\$(echo "$extracted_domains" | sed 's/^/ /')" "$CONFIG_FILE"
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fi
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log_success "Fixed misplaced domains."
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fi
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fi
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else
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log_info "No misplaced domains found."
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fi
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}
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# Function to add domain to config
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add_domain_to_config() {
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local domain="$1"
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local cert_resolver="$2"
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local next_domain_num
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# Fix any misplaced domains first
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fix_misplaced_domains
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# Check if domains section already exists
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if grep -q "^domains:" "$CONFIG_FILE"; then
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log_info "Domains section exists. Finding the last domain entry..."
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# Find the next domain number
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next_domain_num=$(get_next_domain_number)
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log_info "Using domain$next_domain_num for new entry"
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# Find the end of the domains section
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local domains_end=$(awk '/^domains:/{in_domains=1} in_domains==1 && /^[a-zA-Z][^:]*:/ && !/^domains:/{print NR-1; exit}' "$CONFIG_FILE")
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if [ -z "$domains_end" ]; then
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log_info "No next section found after domains, adding to end of file"
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domains_end=$(wc -l < "$CONFIG_FILE")
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fi
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# Use sed to insert the new domain entry at the correct position
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sed -i "${domains_end}i\\ domain${next_domain_num}:\\n base_domain: \"${domain}\"\\n cert_resolver: \"${cert_resolver}\"" "$CONFIG_FILE"
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else
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# Domains section does not exist, need to add it
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log_info "Domains section does not exist. Creating it..."
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# Find the line where the app section ends
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local app_end=$(awk '/^app:/{app=1} app==1 && /^[a-zA-Z][^:]*:/{if($0 !~ /^app:/) {print NR-1; exit}}' "$CONFIG_FILE")
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if [ -z "$app_end" ]; then
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log_info "Could not find end of app section, adding domains after first blank line"
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# Find first blank line
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local blank_line=$(grep -n "^$" "$CONFIG_FILE" | head -1 | cut -d: -f1)
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if [ -z "$blank_line" ]; then
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log_info "No blank line found, adding domains at end of file"
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app_end=$(wc -l < "$CONFIG_FILE")
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else
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log_info "Found blank line at $blank_line, adding domains after it"
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app_end=$blank_line
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fi
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fi
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# Use sed to insert the domains section
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sed -i "${app_end}a\\\\ndomains:\\n domain1:\\n base_domain: \"${domain}\"\\n cert_resolver: \"${cert_resolver}\"" "$CONFIG_FILE"
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next_domain_num=1
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fi
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# Verify the change was made
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log_info "Checking if domain was added:"
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grep -A2 -n "domain${next_domain_num}:" "$CONFIG_FILE"
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if grep -q "domain${next_domain_num}:" "$CONFIG_FILE" && \
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grep -q "base_domain: \"${domain}\"" "$CONFIG_FILE" && \
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grep -q "cert_resolver: \"${cert_resolver}\"" "$CONFIG_FILE"; then
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log_success "Added domain$next_domain_num: $domain with cert_resolver: $cert_resolver"
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return 0
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else
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log_error "Failed to add domain $domain. Please check the config file manually."
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return 1
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fi
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}
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# Main execution starts here
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# Check if arguments are provided
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if [ $# -lt 1 ]; then
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log_error "Missing required arguments."
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echo -e "${BLUE}Usage: $0 domain_name [cert_resolver]${NC}"
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echo -e "${BLUE}Example: $0 example.com letsencrypt${NC}"
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exit 1
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fi
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# Set domain name from first argument
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DOMAIN_NAME=$1
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# Set cert resolver from second argument or default
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CERT_RESOLVER=${2:-$DEFAULT_CERT_RESOLVER}
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# Validate domain
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if ! validate_domain "$DOMAIN_NAME"; then
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exit 1
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fi
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# Check if config file exists
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if [ ! -f "$CONFIG_FILE" ]; then
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log_error "Config file not found at $CONFIG_FILE"
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exit 1
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fi
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# Create backup of config file
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cp "$CONFIG_FILE" "$BACKUP_FILE"
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log_success "Created backup at $BACKUP_FILE"
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# Check if the domain already exists in the config
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if domain_exists "$DOMAIN_NAME"; then
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log_error "Domain '$DOMAIN_NAME' already exists in the config."
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exit 1
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fi
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# Add domain to config
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if ! add_domain_to_config "$DOMAIN_NAME" "$CERT_RESOLVER"; then
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log_error "Failed to add domain to config. Reverting changes..."
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cp "$BACKUP_FILE" "$CONFIG_FILE"
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exit 1
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fi
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# Ask for confirmation before restarting the stack
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log_info "Configuration has been updated."
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read -p "Do you want to restart the Pangolin stack now? (y/n): " restart_confirm
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if [[ "$restart_confirm" =~ ^[Yy]$ ]]; then
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restart_stack
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else
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log_warning "Stack not restarted. Remember to restart manually for changes to take effect:"
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log_info "docker compose down && docker compose up -d"
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fi
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log_success "Domain $DOMAIN_NAME has been successfully added to the configuration."
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