mirror of
https://github.com/uprightbass360/AzerothCore-RealmMaster.git
synced 2026-01-13 09:07:20 +00:00
adds backup detection on start
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Deckard
211
scripts/db-init-enhanced.sh
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211
scripts/db-init-enhanced.sh
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#!/bin/bash
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set -e
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echo "🔧 Enhanced AzerothCore Database Initialization"
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echo "=============================================="
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# Restoration status markers
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RESTORE_STATUS_DIR="/var/lib/mysql-persistent"
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RESTORE_SUCCESS_MARKER="$RESTORE_STATUS_DIR/.restore-completed"
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RESTORE_FAILED_MARKER="$RESTORE_STATUS_DIR/.restore-failed"
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BACKUP_DIRS="/backups"
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# Clean up old status markers
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rm -f "$RESTORE_SUCCESS_MARKER" "$RESTORE_FAILED_MARKER"
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echo "🔧 Waiting for MySQL to be ready..."
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# Wait for MySQL to be responsive with longer timeout
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for i in $(seq 1 ${DB_WAIT_RETRIES}); do
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if mysql -h ${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_ROOT_PASSWORD} -e "SELECT 1;" >/dev/null 2>&1; then
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echo "✅ MySQL is responsive"
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break
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fi
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echo "⏳ Waiting for MySQL... attempt $i/${DB_WAIT_RETRIES}"
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sleep ${DB_WAIT_SLEEP}
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done
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# Function to check if databases have data (not just schema)
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check_database_populated() {
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local db_name="$1"
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local table_count=$(mysql -h ${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_ROOT_PASSWORD} -e "
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SELECT COUNT(*) FROM information_schema.tables
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WHERE table_schema='$db_name' AND table_type='BASE TABLE';" -s -N 2>/dev/null || echo "0")
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if [ "$table_count" -gt 0 ]; then
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echo "🔍 Database $db_name has $table_count tables"
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return 0
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else
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echo "🔍 Database $db_name is empty or doesn't exist"
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return 1
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fi
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}
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# Function to validate backup integrity
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validate_backup() {
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local backup_path="$1"
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echo "🔍 Validating backup: $backup_path"
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if [ -f "$backup_path" ]; then
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# Check if it's a valid SQL file
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if head -10 "$backup_path" | grep -q "CREATE DATABASE\|INSERT INTO\|CREATE TABLE"; then
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echo "✅ Backup appears valid"
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return 0
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fi
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fi
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echo "❌ Backup validation failed"
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return 1
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}
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# Function to find and validate the most recent backup
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find_latest_backup() {
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echo "🔍 Searching for available backups..."
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# Priority 1: Legacy single backup file
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if [ -f "/var/lib/mysql-persistent/backup.sql" ]; then
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if validate_backup "/var/lib/mysql-persistent/backup.sql"; then
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echo "📦 Found valid legacy backup: backup.sql"
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echo "/var/lib/mysql-persistent/backup.sql"
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return 0
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fi
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fi
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# Priority 2: Modern timestamped backups
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if [ -d "$BACKUP_DIRS" ] && [ "$(ls -A $BACKUP_DIRS)" ]; then
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# Try daily backups first
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if [ -d "$BACKUP_DIRS/daily" ] && [ "$(ls -A $BACKUP_DIRS/daily)" ]; then
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local latest_daily=$(ls -1t $BACKUP_DIRS/daily | head -n 1)
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if [ -n "$latest_daily" ] && [ -d "$BACKUP_DIRS/daily/$latest_daily" ]; then
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echo "📦 Found daily backup: $latest_daily"
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echo "$BACKUP_DIRS/daily/$latest_daily"
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return 0
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fi
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fi
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# Try hourly backups second
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if [ -d "$BACKUP_DIRS/hourly" ] && [ "$(ls -A $BACKUP_DIRS/hourly)" ]; then
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local latest_hourly=$(ls -1t $BACKUP_DIRS/hourly | head -n 1)
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if [ -n "$latest_hourly" ] && [ -d "$BACKUP_DIRS/hourly/$latest_hourly" ]; then
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echo "📦 Found hourly backup: $latest_hourly"
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echo "$BACKUP_DIRS/hourly/$latest_hourly"
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return 0
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fi
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fi
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# Try legacy timestamped backups
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local latest_legacy=$(ls -1dt $BACKUP_DIRS/[0-9]* 2>/dev/null | head -n 1)
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if [ -n "$latest_legacy" ] && [ -d "$latest_legacy" ]; then
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echo "📦 Found legacy timestamped backup: $(basename $latest_legacy)"
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echo "$latest_legacy"
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return 0
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fi
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fi
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echo "ℹ️ No valid backups found"
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return 1
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}
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# Function to restore from timestamped backup directory
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restore_from_directory() {
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local backup_dir="$1"
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echo "🔄 Restoring from backup directory: $backup_dir"
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local restore_success=true
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# Restore each database backup
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for backup_file in "$backup_dir"/*.sql.gz; do
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if [ -f "$backup_file" ]; then
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local db_name=$(basename "$backup_file" .sql.gz)
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echo "📥 Restoring database: $db_name"
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if zcat "$backup_file" | mysql -h ${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_ROOT_PASSWORD}; then
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echo "✅ Successfully restored $db_name"
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else
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echo "❌ Failed to restore $db_name"
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restore_success=false
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fi
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fi
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done
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if [ "$restore_success" = true ]; then
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return 0
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else
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return 1
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fi
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}
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# Function to restore from single SQL file
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restore_from_file() {
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local backup_file="$1"
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echo "🔄 Restoring from backup file: $backup_file"
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if mysql -h ${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_ROOT_PASSWORD} < "$backup_file"; then
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echo "✅ Successfully restored from $backup_file"
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return 0
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else
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echo "❌ Failed to restore from $backup_file"
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return 1
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fi
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}
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# Main backup detection and restoration logic
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backup_restored=false
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# Check if databases already have data
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if check_database_populated "${DB_AUTH_NAME}" && check_database_populated "${DB_WORLD_NAME}"; then
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echo "✅ Databases already populated - skipping backup detection"
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backup_restored=true
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else
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echo "🔍 Databases appear empty - checking for backups to restore..."
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backup_path=$(find_latest_backup)
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if [ $? -eq 0 ] && [ -n "$backup_path" ]; then
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echo "📦 Latest backup found: $backup_path"
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if [ -f "$backup_path" ]; then
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# Single file backup
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if restore_from_file "$backup_path"; then
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backup_restored=true
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fi
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elif [ -d "$backup_path" ]; then
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# Directory backup
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if restore_from_directory "$backup_path"; then
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backup_restored=true
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fi
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fi
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fi
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fi
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# Create databases if restore didn't happen or failed
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if [ "$backup_restored" = false ]; then
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echo "🗄️ Creating fresh AzerothCore databases..."
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mysql -h ${MYSQL_HOST} -u${MYSQL_USER} -p${MYSQL_ROOT_PASSWORD} -e "
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CREATE DATABASE IF NOT EXISTS ${DB_AUTH_NAME} DEFAULT CHARACTER SET ${MYSQL_CHARACTER_SET} COLLATE ${MYSQL_COLLATION};
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CREATE DATABASE IF NOT EXISTS ${DB_WORLD_NAME} DEFAULT CHARACTER SET ${MYSQL_CHARACTER_SET} COLLATE ${MYSQL_COLLATION};
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CREATE DATABASE IF NOT EXISTS ${DB_CHARACTERS_NAME} DEFAULT CHARACTER SET ${MYSQL_CHARACTER_SET} COLLATE ${MYSQL_COLLATION};
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SHOW DATABASES;
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" || {
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echo "❌ Failed to create databases"
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exit 1
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}
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echo "✅ Fresh databases created!"
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fi
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# Set restoration status markers for db-import service
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if [ "$backup_restored" = true ]; then
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echo "📝 Creating restoration success marker"
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touch "$RESTORE_SUCCESS_MARKER"
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echo "$(date): Backup successfully restored" > "$RESTORE_SUCCESS_MARKER"
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echo "🚫 DB import will be skipped - restoration completed successfully"
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else
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echo "📝 Creating restoration failed marker"
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touch "$RESTORE_FAILED_MARKER"
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echo "$(date): No backup restored - fresh databases created" > "$RESTORE_FAILED_MARKER"
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echo "▶️ DB import will proceed - fresh databases need population"
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fi
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echo "✅ Database initialization complete!"
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echo " Backup restored: $backup_restored"
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echo " Status marker: $([ "$backup_restored" = true ] && echo "$RESTORE_SUCCESS_MARKER" || echo "$RESTORE_FAILED_MARKER")"
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