880aae9a77
Created comprehensive HA roadmap with 6 phases: - Phase 1: Warm standby (CURRENT - manual failover) - Phase 2: Database replication - Phase 3: Health monitoring - Phase 4: Reverse proxy + floating IP - Phase 5: Automated failover - Phase 6: Geographic redundancy Includes: - Decision gates based on capital and stability - Cost-benefit analysis - Scripts for healthcheck, failover, DB sync - Recommendation to defer full HA until capital > $5k Secondary server ready at 72.62.39.24 for emergency manual failover. Related: User concern about system uptime, but full HA complexity not justified at current scale (~$600 capital). Revisit in Q1 2026.
77 lines
2.2 KiB
Bash
77 lines
2.2 KiB
Bash
#!/bin/bash
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#
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# Daily Database Sync from Primary to Secondary
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# Run on PRIMARY server via cron
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#
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set -eu
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PRIMARY_HOST="localhost"
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SECONDARY_HOST="root@72.62.39.24"
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PROJECT_DIR="/home/icke/traderv4"
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BACKUP_FILE="/tmp/trading_bot_backup_$(date +%Y%m%d_%H%M%S).sql"
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LOG_FILE="/var/log/trading-bot-db-sync.log"
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log() {
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echo "[$(date +'%Y-%m-%d %H:%M:%S')] $*" | tee -a "$LOG_FILE"
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}
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# Telegram notification
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telegram_notify() {
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local message="$1"
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if [ -f "${PROJECT_DIR}/.env" ]; then
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source "${PROJECT_DIR}/.env"
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curl -s -X POST "https://api.telegram.org/bot${TELEGRAM_BOT_TOKEN}/sendMessage" \
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-d chat_id="${TELEGRAM_CHAT_ID}" \
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-d text="📊 DB Sync: ${message}" \
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-d parse_mode="HTML" > /dev/null
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fi
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}
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main() {
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log "🔄 Starting daily database backup..."
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# Create backup
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if docker exec trading-bot-postgres pg_dump -U postgres trading_bot_v4 > "$BACKUP_FILE" 2>>"$LOG_FILE"; then
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local size=$(du -h "$BACKUP_FILE" | cut -f1)
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log "✅ Backup created: $BACKUP_FILE ($size)"
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else
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log "❌ Backup failed!"
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telegram_notify "⚠️ Database backup failed on primary"
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exit 1
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fi
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# Transfer to secondary
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log "📤 Transferring to secondary..."
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if rsync -avz --compress "$BACKUP_FILE" "${SECONDARY_HOST}:/tmp/" >> "$LOG_FILE" 2>&1; then
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log "✅ Transfer complete"
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else
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log "❌ Transfer failed!"
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telegram_notify "⚠️ Database transfer to secondary failed"
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exit 1
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fi
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# Restore on secondary
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log "📥 Restoring on secondary..."
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if ssh "${SECONDARY_HOST}" "docker exec -i trading-bot-postgres psql -U postgres trading_bot_v4 < /tmp/$(basename $BACKUP_FILE)" >> "$LOG_FILE" 2>&1; then
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log "✅ Restore complete on secondary"
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else
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log "❌ Restore failed on secondary!"
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telegram_notify "⚠️ Database restore failed on secondary"
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exit 1
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fi
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# Cleanup old backups (keep last 7 days)
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find /tmp -name "trading_bot_backup_*.sql" -mtime +7 -delete
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ssh "${SECONDARY_HOST}" "find /tmp -name 'trading_bot_backup_*.sql' -mtime +7 -delete"
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log "🎉 Daily sync completed successfully"
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# Only notify on first sync of the day or if there were issues
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if [ "$(date +%H)" -eq 2 ]; then
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telegram_notify "✅ Daily database sync completed"
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fi
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}
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main "$@"
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