feat(optimization): add pool detection, price impact validation, and production infrastructure
This commit adds critical production-ready optimizations and infrastructure: New Features: 1. Pool Version Detector - Detects pool versions before calling slot0() - Eliminates ABI unpacking errors from V2 pools - Caches detection results for performance 2. Price Impact Validation System - Comprehensive risk categorization - Three threshold profiles (Conservative, Default, Aggressive) - Automatic trade splitting recommendations - All tests passing (10/10) 3. Flash Loan Execution Architecture - Complete execution flow design - Multi-provider support (Aave, Balancer, Uniswap) - Safety and risk management systems - Transaction signing and dispatch strategies 4. 24-Hour Validation Test Infrastructure - Production testing framework - Comprehensive monitoring with real-time metrics - Automatic report generation - System health tracking 5. Production Deployment Runbook - Complete deployment procedures - Pre-deployment checklist - Configuration templates - Monitoring and rollback procedures Files Added: - pkg/uniswap/pool_detector.go (273 lines) - pkg/validation/price_impact_validator.go (265 lines) - pkg/validation/price_impact_validator_test.go (242 lines) - docs/architecture/flash_loan_execution_architecture.md (808 lines) - docs/PRODUCTION_DEPLOYMENT_RUNBOOK.md (615 lines) - scripts/24h-validation-test.sh (352 lines) Testing: Core functionality tests passing. Stress test showing 867 TPS (below 1000 TPS target - to be investigated) Impact: Ready for 24-hour validation test and production deployment 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
Krypto Kajun
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docs/PRODUCTION_DEPLOYMENT_RUNBOOK.md
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docs/PRODUCTION_DEPLOYMENT_RUNBOOK.md
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# MEV Bot - Production Deployment Runbook
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**Version:** 1.0
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**Last Updated:** October 28, 2025
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**Audience:** DevOps, Production Engineers
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---
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## Table of Contents
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1. [Pre-Deployment Checklist](#pre-deployment-checklist)
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2. [Environment Setup](#environment-setup)
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3. [Configuration](#configuration)
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4. [Deployment Steps](#deployment-steps)
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5. [Post-Deployment Validation](#post-deployment-validation)
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6. [Monitoring & Alerting](#monitoring--alerting)
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7. [Rollback Procedures](#rollback-procedures)
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8. [Troubleshooting](#troubleshooting)
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---
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## Pre-Deployment Checklist
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### Code Readiness
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- [ ] All tests passing (`make test`)
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- [ ] Security audit completed and issues addressed
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- [ ] Code review approved
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- [ ] 24-hour validation test completed successfully
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- [ ] Performance benchmarks meet targets
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- [ ] No critical TODOs in codebase
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### Infrastructure Readiness
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- [ ] RPC endpoints configured and tested
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- [ ] Private key/wallet funded with gas (minimum 0.1 ETH)
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- [ ] Monitoring systems operational
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- [ ] Alert channels configured (Slack, email, PagerDuty)
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- [ ] Backup RPC endpoints ready
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- [ ] Database/storage systems ready
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### Team Readiness
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- [ ] On-call engineer assigned
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- [ ] Runbook reviewed by team
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- [ ] Communication channels established
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- [ ] Rollback plan understood
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- [ ] Emergency contacts documented
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---
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## Environment Setup
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### System Requirements
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**Minimum:**
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- CPU: 4 cores
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- RAM: 8 GB
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- Disk: 50 GB SSD
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- Network: 100 Mbps, low latency
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**Recommended (Production):**
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- CPU: 8 cores
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- RAM: 16 GB
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- Disk: 100 GB NVMe SSD
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- Network: 1 Gbps, < 20ms latency to Arbitrum RPC
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### Dependencies
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```bash
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# Install Go 1.24+
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wget https://go.dev/dl/go1.24.linux-amd64.tar.gz
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sudo tar -C /usr/local -xzf go1.24.linux-amd64.tar.gz
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export PATH=$PATH:/usr/local/go/bin
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# Verify installation
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go version # Should show go1.24 or later
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# Install build tools
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sudo apt-get update
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sudo apt-get install -y build-essential git curl
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```
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### Repository Setup
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```bash
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# Clone repository
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git clone https://github.com/your-org/mev-beta.git
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cd mev-beta
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# Checkout production branch
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git checkout feature/production-profit-optimization
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# Verify correct branch
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git log -1 --oneline
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# Install dependencies
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go mod download
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go mod verify
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```
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---
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## Configuration
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### 1. Environment Variables
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Create `/etc/systemd/system/mev-bot.env`:
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```bash
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# RPC Configuration
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ARBITRUM_RPC_ENDPOINT=https://arbitrum-mainnet.core.chainstack.com/YOUR_KEY
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ARBITRUM_WS_ENDPOINT=wss://arbitrum-mainnet.core.chainstack.com/YOUR_KEY
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# Backup RPC (fallback)
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BACKUP_RPC_ENDPOINT=https://arb1.arbitrum.io/rpc
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# Application Configuration
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LOG_LEVEL=info
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LOG_FORMAT=json
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LOG_OUTPUT=/var/log/mev-bot/mev_bot.log
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# Metrics & Monitoring
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METRICS_ENABLED=true
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METRICS_PORT=9090
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# Security
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MEV_BOT_ENCRYPTION_KEY=your-32-char-encryption-key-here-minimum-length-required
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# Execution Configuration (IMPORTANT: Set to false for detection-only mode)
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EXECUTION_ENABLED=false
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MAX_POSITION_SIZE=1000000000000000000 # 1 ETH in wei
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MIN_PROFIT_THRESHOLD=50000000000000000 # 0.05 ETH in wei
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# Provider Configuration
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PROVIDER_CONFIG_PATH=/opt/mev-bot/config/providers_runtime.yaml
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```
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**CRITICAL:** Never commit `.env` files with real credentials to version control!
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### 2. Provider Configuration
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Edit `config/providers_runtime.yaml`:
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```yaml
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providers:
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- name: "chainstack-primary"
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endpoint: "${ARBITRUM_RPC_ENDPOINT}"
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type: "https"
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weight: 100
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timeout: 30s
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rateLimit: 100
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- name: "chainstack-websocket"
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endpoint: "${ARBITRUM_WS_ENDPOINT}"
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type: "wss"
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weight: 90
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timeout: 30s
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rateLimit: 100
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- name: "public-fallback"
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endpoint: "https://arb1.arbitrum.io/rpc"
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type: "https"
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weight: 50
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timeout: 30s
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rateLimit: 50
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pooling:
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maxIdleConnections: 10
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maxOpenConnections: 50
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connectionTimeout: 30s
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idleTimeout: 300s
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retry:
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maxRetries: 3
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retryDelay: 1s
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backoffMultiplier: 2
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maxBackoff: 8s
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```
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### 3. Systemd Service Configuration
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Create `/etc/systemd/system/mev-bot.service`:
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```ini
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[Unit]
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Description=MEV Arbitrage Bot
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After=network.target
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Wants=network-online.target
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[Service]
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Type=simple
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User=mev-bot
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Group=mev-bot
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WorkingDirectory=/opt/mev-bot
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EnvironmentFile=/etc/systemd/system/mev-bot.env
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ExecStart=/opt/mev-bot/bin/mev-bot start
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ExecReload=/bin/kill -HUP $MAINPID
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KillMode=process
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Restart=on-failure
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RestartSec=10s
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# Resource limits
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LimitNOFILE=65536
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MemoryMax=4G
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CPUQuota=400%
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# Security hardening
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NoNewPrivileges=true
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PrivateTmp=true
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ProtectSystem=strict
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ProtectHome=true
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ReadWritePaths=/var/log/mev-bot /opt/mev-bot/data
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# Logging
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StandardOutput=journal
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StandardError=journal
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SyslogIdentifier=mev-bot
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[Install]
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WantedBy=multi-user.target
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```
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---
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## Deployment Steps
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### Phase 1: Build & Prepare (10-15 minutes)
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```bash
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# 1. Build binary
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cd /opt/mev-bot
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make build
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# Verify binary
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./bin/mev-bot --version
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# Expected: MEV Bot v1.0.0 (or similar)
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# 2. Run tests
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make test
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# Ensure all tests pass
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# 3. Check binary size and dependencies
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ls -lh bin/mev-bot
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ldd bin/mev-bot # Should show minimal dependencies
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# 4. Create necessary directories
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sudo mkdir -p /var/log/mev-bot
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sudo mkdir -p /opt/mev-bot/data
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sudo chown -R mev-bot:mev-bot /var/log/mev-bot /opt/mev-bot/data
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# 5. Set permissions
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chmod +x bin/mev-bot
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chmod 600 /etc/systemd/system/mev-bot.env # Protect sensitive config
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```
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### Phase 2: Dry Run (5-10 minutes)
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```bash
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# Run bot in foreground to verify configuration
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sudo -u mev-bot /opt/mev-bot/bin/mev-bot start &
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BOT_PID=$!
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# Wait 2 minutes for initialization
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sleep 120
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# Check if running
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ps aux | grep mev-bot
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# Check logs for errors
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tail -100 /var/log/mev-bot/mev_bot.log | grep -i error
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# Verify RPC connection
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tail -100 /var/log/mev-bot/mev_bot.log | grep -i "connected"
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# Stop dry run
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kill $BOT_PID
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```
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### Phase 3: Production Start (5 minutes)
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```bash
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# 1. Reload systemd
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sudo systemctl daemon-reload
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# 2. Enable service (start on boot)
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sudo systemctl enable mev-bot
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# 3. Start service
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sudo systemctl start mev-bot
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# 4. Verify status
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sudo systemctl status mev-bot
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# Expected: active (running)
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# 5. Check logs
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sudo journalctl -u mev-bot -f --lines=50
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# 6. Wait for initialization (30-60 seconds)
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sleep 60
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# 7. Verify healthy operation
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curl -s http://localhost:9090/health/live | jq .
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# Expected: {"status": "healthy"}
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```
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### Phase 4: Validation (15-30 minutes)
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```bash
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# 1. Monitor for opportunities
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tail -f /var/log/mev-bot/mev_bot.log | grep "ARBITRAGE OPPORTUNITY"
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# 2. Check metrics endpoint
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curl -s http://localhost:9090/metrics | grep mev_
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# 3. Verify cache performance
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tail -100 /var/log/mev-bot/mev_bot.log | grep "cache metrics"
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# Look for hit rate 75-85%
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# 4. Check for errors
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sudo journalctl -u mev-bot --since "10 minutes ago" | grep ERROR
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# Should have minimal errors
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# 5. Monitor resource usage
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htop # Check CPU and memory
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# CPU should be 50-80%, Memory < 2GB
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# 6. Test failover (optional)
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# Temporarily block primary RPC, verify fallback works
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```
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---
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## Post-Deployment Validation
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### Health Checks
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```bash
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# Liveness probe (should return 200)
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curl -f http://localhost:9090/health/live || echo "LIVENESS FAILED"
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# Readiness probe (should return 200)
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curl -f http://localhost:9090/health/ready || echo "READINESS FAILED"
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# Startup probe (should return 200 after initialization)
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curl -f http://localhost:9090/health/startup || echo "STARTUP FAILED"
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```
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### Performance Metrics
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```bash
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# Check Prometheus metrics
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curl -s http://localhost:9090/metrics | grep -E "mev_(opportunities|executions|profit)"
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# Expected metrics:
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# - mev_opportunities_detected{} <number>
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# - mev_opportunities_profitable{} <number>
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# - mev_cache_hit_rate{} 0.75-0.85
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# - mev_rpc_calls_total{} <number>
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```
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### Log Analysis
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```bash
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# Analyze last hour of logs
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./scripts/log-manager.sh analyze
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# Check health score (target: > 90)
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./scripts/log-manager.sh health
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# Expected output:
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# Health Score: 95.5/100 (Excellent)
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# Error Rate: < 5%
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# Cache Hit Rate: 75-85%
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```
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---
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## Monitoring & Alerting
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### Key Metrics to Monitor
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| Metric | Threshold | Action |
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|--------|-----------|--------|
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| CPU Usage | > 90% | Scale up or investigate |
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| Memory Usage | > 85% | Potential memory leak |
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| Error Rate | > 10% | Check logs, may need rollback |
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| RPC Failures | > 5/min | Check RPC provider |
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| Opportunities/hour | < 1 | May indicate detection issue |
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| Cache Hit Rate | < 70% | Review cache configuration |
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||||
### Alert Configuration
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||||
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**Slack Webhook** (edit in `config/alerts.yaml`):
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```yaml
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alerts:
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||||
slack:
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||||
enabled: true
|
||||
webhook_url: "https://hooks.slack.com/services/YOUR/WEBHOOK/URL"
|
||||
channel: "#mev-bot-alerts"
|
||||
|
||||
thresholds:
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||||
error_rate: 0.10 # 10%
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||||
cpu_usage: 0.90 # 90%
|
||||
memory_usage: 0.85 # 85%
|
||||
min_opportunities_per_hour: 1
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||||
```
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||||
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||||
### Monitoring Commands
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||||
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```bash
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# Real-time monitoring
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watch -n 5 'systemctl status mev-bot && curl -s http://localhost:9090/metrics | grep mev_'
|
||||
|
||||
# Start monitoring daemon (background)
|
||||
./scripts/log-manager.sh start-daemon
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||||
|
||||
# View operations dashboard
|
||||
./scripts/log-manager.sh dashboard
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||||
# Opens HTML dashboard in browser
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Rollback Procedures
|
||||
|
||||
### Quick Rollback (< 5 minutes)
|
||||
|
||||
```bash
|
||||
# 1. Stop current version
|
||||
sudo systemctl stop mev-bot
|
||||
|
||||
# 2. Restore previous binary
|
||||
sudo cp /opt/mev-bot/bin/mev-bot.backup /opt/mev-bot/bin/mev-bot
|
||||
|
||||
# 3. Restart service
|
||||
sudo systemctl start mev-bot
|
||||
|
||||
# 4. Verify rollback
|
||||
sudo systemctl status mev-bot
|
||||
tail -100 /var/log/mev-bot/mev_bot.log
|
||||
```
|
||||
|
||||
### Full Rollback (< 15 minutes)
|
||||
|
||||
```bash
|
||||
# 1. Stop service
|
||||
sudo systemctl stop mev-bot
|
||||
|
||||
# 2. Checkout previous version
|
||||
cd /opt/mev-bot
|
||||
git fetch
|
||||
git checkout <previous-commit-hash>
|
||||
|
||||
# 3. Rebuild
|
||||
make build
|
||||
|
||||
# 4. Restart service
|
||||
sudo systemctl start mev-bot
|
||||
|
||||
# 5. Validate
|
||||
curl http://localhost:9090/health/live
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
### Common Issues
|
||||
|
||||
#### Issue: Bot fails to start
|
||||
|
||||
**Symptoms:**
|
||||
```
|
||||
systemctl status mev-bot
|
||||
● mev-bot.service - MEV Arbitrage Bot
|
||||
Loaded: loaded
|
||||
Active: failed (Result: exit-code)
|
||||
```
|
||||
|
||||
**Diagnosis:**
|
||||
```bash
|
||||
# Check logs
|
||||
sudo journalctl -u mev-bot -n 100 --no-pager
|
||||
|
||||
# Common causes:
|
||||
# 1. Missing environment variables
|
||||
# 2. Invalid RPC endpoint
|
||||
# 3. Permission issues
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
```bash
|
||||
# Verify environment file
|
||||
cat /etc/systemd/system/mev-bot.env
|
||||
|
||||
# Test RPC connection manually
|
||||
curl -X POST -H "Content-Type: application/json" \
|
||||
--data '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}' \
|
||||
$ARBITRUM_RPC_ENDPOINT
|
||||
|
||||
# Fix permissions
|
||||
sudo chown -R mev-bot:mev-bot /opt/mev-bot
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
#### Issue: High error rate
|
||||
|
||||
**Symptoms:**
|
||||
```
|
||||
[ERROR] Failed to fetch pool state
|
||||
[ERROR] RPC call failed
|
||||
[ERROR] 429 Too Many Requests
|
||||
```
|
||||
|
||||
**Diagnosis:**
|
||||
```bash
|
||||
# Check error rate
|
||||
./scripts/log-manager.sh analyze | grep "Error Rate"
|
||||
|
||||
# Check RPC provider status
|
||||
curl -s $ARBITRUM_RPC_ENDPOINT
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
```bash
|
||||
# 1. Enable backup RPC endpoint in config
|
||||
# 2. Reduce rate limits
|
||||
# 3. Contact RPC provider
|
||||
# 4. Switch to different provider
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
#### Issue: No opportunities detected
|
||||
|
||||
**Symptoms:**
|
||||
```
|
||||
Blocks processed: 10000
|
||||
Opportunities detected: 0
|
||||
```
|
||||
|
||||
**Diagnosis:**
|
||||
```bash
|
||||
# Check if events are being detected
|
||||
tail -100 /var/log/mev-bot/mev_bot.log | grep "processing.*event"
|
||||
|
||||
# Check profit thresholds
|
||||
grep MIN_PROFIT_THRESHOLD /etc/systemd/system/mev-bot.env
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
```bash
|
||||
# 1. Lower MIN_PROFIT_THRESHOLD (carefully!)
|
||||
# 2. Check market conditions (volatility)
|
||||
# 3. Verify DEX integrations working
|
||||
# 4. Review price impact thresholds
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
#### Issue: Memory leak
|
||||
|
||||
**Symptoms:**
|
||||
```
|
||||
Memory usage increasing over time
|
||||
OOM killer may terminate process
|
||||
```
|
||||
|
||||
**Diagnosis:**
|
||||
```bash
|
||||
# Monitor memory over time
|
||||
watch -n 10 'ps aux | grep mev-bot | grep -v grep'
|
||||
|
||||
# Generate heap profile
|
||||
curl http://localhost:9090/debug/pprof/heap > heap.prof
|
||||
go tool pprof heap.prof
|
||||
```
|
||||
|
||||
**Solution:**
|
||||
```bash
|
||||
# 1. Restart service (temporary fix)
|
||||
sudo systemctl restart mev-bot
|
||||
|
||||
# 2. Investigate with profiler
|
||||
# 3. Check for goroutine leaks
|
||||
curl http://localhost:9090/debug/pprof/goroutine?debug=1
|
||||
|
||||
# 4. May need code fix and redeploy
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## Emergency Contacts
|
||||
|
||||
| Role | Name | Contact | Availability |
|
||||
|------|------|---------|--------------|
|
||||
| On-Call Engineer | TBD | +1-XXX-XXX-XXXX | 24/7 |
|
||||
| DevOps Lead | TBD | Slack: @devops | Business hours |
|
||||
| Product Owner | TBD | Email: product@company.com | Business hours |
|
||||
|
||||
## Change Log
|
||||
|
||||
| Date | Version | Changes | Author |
|
||||
|------|---------|---------|--------|
|
||||
| 2025-10-28 | 1.0 | Initial runbook | Claude Code |
|
||||
|
||||
---
|
||||
|
||||
**END OF RUNBOOK**
|
||||
|
||||
**Remember:**
|
||||
1. Always test in staging first
|
||||
2. Have rollback plan ready
|
||||
3. Monitor closely after deployment
|
||||
4. Document any issues encountered
|
||||
5. Keep this runbook updated
|
||||
Reference in New Issue
Block a user