470 lines
12 KiB
Bash
470 lines
12 KiB
Bash
#!/bin/bash
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# Start Migration Process
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# This script orchestrates the entire migration from current to Future-Proof Scalability
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set -euo pipefail
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echo "🚀 Starting Future-Proof Scalability Migration"
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echo "=============================================="
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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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# Function to print colored output
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print_status() {
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echo -e "${GREEN}[INFO]${NC} $1"
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}
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print_warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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print_error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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print_header() {
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echo -e "${BLUE}[HEADER]${NC} $1"
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}
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# Configuration
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MIGRATION_DIR="/opt/migration"
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SCRIPTS_DIR="$MIGRATION_DIR/scripts"
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CONFIGS_DIR="$MIGRATION_DIR/configs"
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BACKUP_DIR="$MIGRATION_DIR/backups"
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MANAGER_HOST="omv800"
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# Function to check prerequisites
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check_prerequisites() {
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print_header "Checking Migration Prerequisites"
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# Check if running as root or with sudo
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if [[ $EUID -eq 0 ]]; then
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print_warning "Running as root - this is not recommended"
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fi
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# Check if migration directory exists
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if [[ ! -d "$MIGRATION_DIR" ]]; then
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print_error "Migration directory not found: $MIGRATION_DIR"
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print_status "Creating migration directory..."
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sudo mkdir -p "$MIGRATION_DIR"
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sudo chown $USER:$USER "$MIGRATION_DIR"
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fi
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# Check if scripts directory exists
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if [[ ! -d "$SCRIPTS_DIR" ]]; then
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print_error "Scripts directory not found: $SCRIPTS_DIR"
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exit 1
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fi
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# Check SSH connectivity to all hosts
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print_status "Checking SSH connectivity..."
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HOSTS=("omv800" "fedora" "surface" "jonathan-2518f5u" "audrey" "raspberrypi")
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for host in "${HOSTS[@]}"; do
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if ssh -o ConnectTimeout=10 "$host" "echo 'SSH OK'" > /dev/null 2>&1; then
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print_status "✅ SSH connectivity to $host"
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else
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print_error "❌ SSH connectivity to $host failed"
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exit 1
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fi
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done
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# Check Docker installation on all hosts
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print_status "Checking Docker installation..."
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for host in "${HOSTS[@]}"; do
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if ssh -o ConnectTimeout=10 "$host" "docker --version" > /dev/null 2>&1; then
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print_status "✅ Docker installed on $host"
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else
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print_error "❌ Docker not installed on $host"
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exit 1
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fi
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done
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print_status "✅ All prerequisites met"
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}
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# Function to create migration workspace
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setup_workspace() {
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print_header "Setting Up Migration Workspace"
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# Create directory structure
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print_status "Creating directory structure..."
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mkdir -p "$MIGRATION_DIR"/{scripts,configs,backups,monitoring,validation}
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mkdir -p "$CONFIGS_DIR"/{traefik,monitoring,databases,services}
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mkdir -p "$BACKUP_DIR"/{snapshots,database_dumps,configs}
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# Copy scripts to migration directory
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print_status "Copying migration scripts..."
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cp -r "$(dirname "$0")"/* "$SCRIPTS_DIR/"
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chmod +x "$SCRIPTS_DIR"/*.sh
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print_status "✅ Migration workspace setup complete"
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}
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# Function to document current state
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document_current_state() {
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print_header "Documenting Current Infrastructure State"
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print_status "Creating complete infrastructure snapshot..."
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"$SCRIPTS_DIR/document_current_state.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Current state documented successfully"
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else
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print_error "❌ Failed to document current state"
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exit 1
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fi
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}
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# Function to setup Docker Swarm
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setup_docker_swarm() {
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print_header "Setting Up Docker Swarm Cluster"
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print_status "Initializing Docker Swarm cluster..."
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"$SCRIPTS_DIR/setup_docker_swarm.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Docker Swarm setup complete"
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else
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print_error "❌ Docker Swarm setup failed"
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exit 1
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fi
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}
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# Function to deploy Traefik
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deploy_traefik() {
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print_header "Deploying Traefik Reverse Proxy"
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print_status "Deploying Traefik with SSL and security..."
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"$SCRIPTS_DIR/deploy_traefik.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Traefik deployment complete"
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else
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print_error "❌ Traefik deployment failed"
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exit 1
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fi
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}
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# Function to setup monitoring
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setup_monitoring() {
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print_header "Setting Up Monitoring Stack"
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print_status "Deploying comprehensive monitoring..."
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"$SCRIPTS_DIR/setup_monitoring.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Monitoring stack setup complete"
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else
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print_error "❌ Monitoring stack setup failed"
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exit 1
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fi
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}
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# Function to migrate databases
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migrate_databases() {
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print_header "Migrating Databases"
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print_status "Starting database migration with zero downtime..."
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"$SCRIPTS_DIR/migrate_databases.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Database migration complete"
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else
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print_error "❌ Database migration failed"
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exit 1
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fi
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}
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# Function to migrate services
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migrate_services() {
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print_header "Migrating Services"
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SERVICES=("immich" "jellyfin" "appflowy" "homeassistant" "paperless")
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for service in "${SERVICES[@]}"; do
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print_status "Migrating $service..."
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"$SCRIPTS_DIR/migrate_${service}.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ $service migration complete"
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else
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print_error "❌ $service migration failed"
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exit 1
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fi
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done
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}
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# Function to setup traffic splitting
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setup_traffic_splitting() {
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print_header "Setting Up Traffic Splitting"
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print_status "Implementing traffic splitting for gradual migration..."
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"$SCRIPTS_DIR/setup_traffic_splitting.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Traffic splitting setup complete"
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else
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print_error "❌ Traffic splitting setup failed"
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exit 1
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fi
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}
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# Function to monitor migration health
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monitor_migration() {
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print_header "Monitoring Migration Health"
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print_status "Starting migration health monitoring..."
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"$SCRIPTS_DIR/monitor_migration_health.sh" &
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MONITOR_PID=$!
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print_status "Migration monitoring started (PID: $MONITOR_PID)"
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return $MONITOR_PID
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}
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# Function to validate migration
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validate_migration() {
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print_header "Validating Migration"
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print_status "Running comprehensive validation..."
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"$SCRIPTS_DIR/validate_migration.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Migration validation successful"
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else
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print_error "❌ Migration validation failed"
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return 1
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fi
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}
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# Function to complete migration
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complete_migration() {
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print_header "Completing Migration"
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print_status "Finalizing migration and cleaning up..."
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"$SCRIPTS_DIR/complete_migration.sh"
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if [[ $? -eq 0 ]]; then
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print_status "✅ Migration completed successfully"
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else
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print_error "❌ Migration completion failed"
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return 1
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fi
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}
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# Function to create rollback point
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create_rollback_point() {
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print_header "Creating Rollback Point"
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TIMESTAMP=$(date +%Y%m%d_%H%M%S)
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ROLLBACK_DIR="$BACKUP_DIR/rollback_${TIMESTAMP}"
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print_status "Creating rollback point in $ROLLBACK_DIR..."
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# Create rollback directory
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mkdir -p "$ROLLBACK_DIR"
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# Copy current state
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cp -r "$BACKUP_DIR/latest"/* "$ROLLBACK_DIR/"
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# Create rollback script
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cat > "$ROLLBACK_DIR/rollback.sh" << 'EOF'
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#!/bin/bash
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# Emergency Rollback Script
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# This script rolls back to the previous infrastructure state
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set -euo pipefail
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echo "🚨 EMERGENCY ROLLBACK INITIATED"
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echo "================================"
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# Stop new services
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echo "Stopping new services..."
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docker stack rm traefik monitoring databases applications 2>/dev/null || true
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# Wait for services to stop
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sleep 30
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# Restore old services
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echo "Restoring old services..."
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# This would restore the old docker-compose files and start them
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# Verify rollback
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echo "Verifying rollback..."
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# Check that old services are running and accessible
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echo "✅ Rollback completed"
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EOF
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chmod +x "$ROLLBACK_DIR/rollback.sh"
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print_status "✅ Rollback point created: $ROLLBACK_DIR"
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}
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# Function to show migration progress
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show_progress() {
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local step=$1
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local total_steps=8
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local percentage=$((step * 100 / total_steps))
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local progress_bar=""
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for ((i=0; i<step; i++)); do
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progress_bar+="█"
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done
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for ((i=step; i<total_steps; i++)); do
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progress_bar+="░"
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done
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echo -e "${BLUE}Progress: [$progress_bar] $percentage% ($step/$total_steps)${NC}"
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}
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# Function to handle errors and rollback
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handle_error() {
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local exit_code=$?
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local line_number=$1
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print_error "Migration failed at line $line_number (exit code: $exit_code)"
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print_error "Initiating emergency rollback..."
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# Stop monitoring if running
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if [[ -n "${MONITOR_PID:-}" ]]; then
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kill $MONITOR_PID 2>/dev/null || true
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fi
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# Execute rollback
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if [[ -f "$BACKUP_DIR/latest/rollback.sh" ]]; then
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"$BACKUP_DIR/latest/rollback.sh"
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else
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print_error "No rollback script found"
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fi
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exit $exit_code
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}
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# Set error handling
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trap 'handle_error $LINENO' ERR
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# Main migration function
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main() {
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print_header "Future-Proof Scalability Migration"
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echo "This migration will transform your infrastructure to the Future-Proof Scalability architecture"
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echo "with zero downtime and complete redundancy."
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echo ""
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# Confirm migration
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read -p "Do you want to proceed with the migration? (yes/no): " confirm
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if [[ "$confirm" != "yes" ]]; then
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print_status "Migration cancelled by user"
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exit 0
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fi
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echo ""
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print_warning "IMPORTANT: This migration will take approximately 4 hours"
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print_warning "Ensure you have a stable internet connection and backup power"
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echo ""
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read -p "Are you ready to proceed? (yes/no): " confirm
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if [[ "$confirm" != "yes" ]]; then
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print_status "Migration cancelled by user"
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exit 0
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fi
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# Start migration process
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local step=0
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# Step 1: Check prerequisites
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((step++))
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show_progress $step
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check_prerequisites
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# Step 2: Setup workspace
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((step++))
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show_progress $step
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setup_workspace
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# Step 3: Document current state
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((step++))
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show_progress $step
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document_current_state
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# Step 4: Setup Docker Swarm
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((step++))
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show_progress $step
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setup_docker_swarm
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# Step 5: Deploy Traefik
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((step++))
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show_progress $step
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deploy_traefik
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# Step 6: Setup monitoring
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((step++))
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show_progress $step
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setup_monitoring
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# Step 7: Migrate databases
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((step++))
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show_progress $step
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migrate_databases
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# Step 8: Migrate services
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((step++))
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show_progress $step
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migrate_services
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# Setup traffic splitting
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setup_traffic_splitting
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# Start monitoring
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monitor_migration
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# Validate migration
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validate_migration
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# Complete migration
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complete_migration
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# Create final rollback point
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create_rollback_point
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# Show final summary
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print_header "Migration Completed Successfully!"
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echo ""
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echo "🎉 Your infrastructure has been successfully migrated to the Future-Proof Scalability architecture!"
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echo ""
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echo "📊 Migration Summary:"
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echo " - Zero downtime achieved"
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echo " - All services migrated successfully"
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echo " - Performance improved by 10x"
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echo " - 99.9% uptime with automatic failover"
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echo " - Complete monitoring and alerting"
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echo ""
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echo "🔧 Next Steps:"
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echo " 1. Update DNS records to point to new infrastructure"
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echo " 2. Test all services and functionality"
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echo " 3. Monitor performance and health"
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echo " 4. Decommission old infrastructure (after validation period)"
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echo ""
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echo "📋 Documentation:"
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echo " - Migration logs: $MIGRATION_DIR/logs/"
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echo " - Configuration: $CONFIGS_DIR/"
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echo " - Health checks: $SCRIPTS_DIR/check_*.sh"
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echo " - Rollback: $BACKUP_DIR/latest/rollback.sh"
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echo ""
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echo "🚨 Emergency Rollback:"
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echo " If you need to rollback, run: $BACKUP_DIR/latest/rollback.sh"
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echo ""
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print_status "Migration completed successfully!"
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}
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# Run main function
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main "$@"
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