added script

backup.sh

@@ -0,0 +1,117 @@
+#!/bin/bash
+
+# ZTNet Docker Compose Backup Script
+# This script stops containers, backs up volumes and configs, then restarts
+
+set -e  # Exit on error
+
+# Configuration
+BACKUP_DIR="./backup"
+COMPOSE_FILE="docker-compose.yml"
+MAX_BACKUPS=5
+TIMESTAMP=$(date +"%Y%m%d_%H%M%S")
+BACKUP_NAME="ztnet_backup_${TIMESTAMP}"
+BACKUP_PATH="${BACKUP_DIR}/${BACKUP_NAME}"
+
+# Colors for output
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+RED='\033[0;31m'
+NC='\033[0m' # No Color
+
+# Function to print colored messages
+log_info() {
+    echo -e "${GREEN}[INFO]${NC} $1"
+}
+
+log_warn() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Check if docker-compose file exists
+if [ ! -f "$COMPOSE_FILE" ]; then
+    log_error "docker-compose.yml not found in current directory!"
+    exit 1
+fi
+
+# Create backup directory if it doesn't exist
+mkdir -p "$BACKUP_DIR"
+
+log_info "Starting backup process..."
+log_info "Backup will be saved to: ${BACKUP_PATH}"
+
+# Step 1: Stop containers
+log_info "Stopping Docker containers..."
+docker compose down
+
+# Step 2: Create backup directory for this backup
+mkdir -p "$BACKUP_PATH"
+
+# Step 3: Backup PostgreSQL data volume
+log_info "Backing up PostgreSQL data..."
+docker run --rm \
+    -v ztnet_postgres-data:/data \
+    -v "$(pwd)/${BACKUP_PATH}:/backup" \
+    alpine tar czf /backup/postgres-data.tar.gz -C /data .
+
+# Step 4: Backup ZeroTier volume
+log_info "Backing up ZeroTier data..."
+docker run --rm \
+    -v ztnet_zerotier:/data \
+    -v "$(pwd)/${BACKUP_PATH}:/backup" \
+    alpine tar czf /backup/zerotier.tar.gz -C /data .
+
+# Step 5: Backup docker-compose.yml
+log_info "Backing up docker-compose.yml..."
+cp "$COMPOSE_FILE" "${BACKUP_PATH}/docker-compose.yml"
+
+# Step 6: Create backup metadata
+cat > "${BACKUP_PATH}/backup_info.txt" << EOF
+Backup Information
+==================
+Date: $(date)
+Timestamp: ${TIMESTAMP}
+Hostname: $(hostname)
+Docker Version: $(docker --version)
+Docker Compose Version: $(docker compose version)
+
+Backed up volumes:
+- postgres-data
+- zerotier
+
+Backed up files:
+- docker-compose.yml
+EOF
+
+log_info "Backup completed successfully!"
+
+# Step 7: Cleanup old backups (keep only last 5)
+log_info "Cleaning up old backups (keeping last ${MAX_BACKUPS})..."
+cd "$BACKUP_DIR"
+ls -t | grep "ztnet_backup_" | tail -n +$((MAX_BACKUPS + 1)) | xargs -r rm -rf
+cd - > /dev/null
+
+REMAINING_BACKUPS=$(ls -1 "$BACKUP_DIR" | grep "ztnet_backup_" | wc -l)
+log_info "Current number of backups: ${REMAINING_BACKUPS}"
+
+# Step 8: Restart containers
+log_info "Starting Docker containers..."
+docker compose up -d
+
+# Step 9: Wait for services to be ready
+log_info "Waiting for services to start..."
+sleep 5
+
+# Check if containers are running
+log_info "Checking container status..."
+docker compose ps
+
+log_info "=========================================="
+log_info "Backup process completed successfully!"
+log_info "Backup location: ${BACKUP_PATH}"
+log_info "Backup size: $(du -sh "${BACKUP_PATH}" | cut -f1)"
+log_info "=========================================="