1fb7266469
- Introduced Aggregator.sol for Chainlink-compatible oracle functionality, including round-based updates and access control. - Added OracleWithCCIP.sol to extend Aggregator with CCIP cross-chain messaging capabilities. - Created .gitmodules to include OpenZeppelin contracts as a submodule. - Developed a comprehensive deployment guide in NEXT_STEPS_COMPLETE_GUIDE.md for Phase 2 and smart contract deployment. - Implemented Vite configuration for the orchestration portal, supporting both Vue and React frameworks. - Added server-side logic for the Multi-Cloud Orchestration Portal, including API endpoints for environment management and monitoring. - Created scripts for resource import and usage validation across non-US regions. - Added tests for CCIP error handling and integration to ensure robust functionality. - Included various new files and directories for the orchestration portal and deployment scripts.
153 lines
5.6 KiB
Markdown
153 lines
5.6 KiB
Markdown
# Gas Fee Calculations for Mainnet Deployments
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## Overview
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This document calculates the gas fees required to deploy CCIP WETH bridge contracts on Ethereum Mainnet using **conservative estimates** based on MetaMask and Etherscan gas prices.
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**Important**: These gas fees are **ONLY for the bridge contracts**, not the WETH contracts:
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- **WETH9 and WETH10 on Mainnet**: Already exist (deployed years ago) - **NO deployment needed**
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- **WETH9 and WETH10 on ChainID 138**: Predeployed in genesis.json - **NO deployment needed**
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- **Bridge contracts**: NEW contracts that need deployment on BOTH chains
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## Conservative Gas Price Calculation
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**Method**: 2.5x the highest gas price between MetaMask and Etherscan estimates
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**Formula**: `Conservative Gas Price = MAX(MetaMask Gas, Etherscan Gas) × 2.5`
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**Current Analysis**:
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- Highest (MetaMask/Etherscan): .155444001 gwei (from Etherscan)
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- **Conservative (2.5x)**: .388610002 gwei
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- **Last Updated**: 2025-11-13 05:49:03 UTC
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> **Note**: Run `./scripts/deployment/get-conservative-gas-price.sh` to get the latest conservative estimate.
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## Contracts to Deploy
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1. **CCIPWETH9Bridge** - Bridge for WETH9 cross-chain transfers
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2. **CCIPWETH10Bridge** - Bridge for WETH10 cross-chain transfers
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## Gas Calculation Formula
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```
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Total Gas = Base Transaction Gas + Constructor Gas + (Contract Size × Gas per Byte)
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```
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Where:
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- **Base Transaction Gas**: 21,000 gas
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- **Constructor Gas**: ~50,000 gas (approximate, depends on constructor logic)
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- **Contract Size**: Size of deployed bytecode in bytes
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- **Gas per Byte**: 16 gas per byte of contract code
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## Contract Sizes
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Based on compiled contracts:
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| Contract | Size (bytes) | Code Gas | Constructor Gas | Base Gas | Total Gas |
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|----------|--------------|----------|-----------------|----------|-----------|
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| CCIPWETH9Bridge | ~12,000 | 192,000 | 50,000 | 21,000 | ~263,000 |
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| CCIPWETH10Bridge | ~12,000 | 192,000 | 50,000 | 21,000 | ~263,000 |
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| **Total** | **24,000** | **384,000** | **100,000** | **42,000** | **~526,000** |
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## Conservative Cost Estimates
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### Current Conservative Gas Price: .388610002 gwei (2.5x highest)
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**Calculation**: MAX(MetaMask Gas, Etherscan Gas) × 2.5
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| Contract | Gas | Cost (ETH) | Cost (USD @ $2,500/ETH) |
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|----------|-----|------------|-------------------------|
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| CCIPWETH9Bridge | ~263,000 | ~0.0001022 ETH | ~$.2555110000 |
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| CCIPWETH10Bridge | ~263,000 | ~0.0001022 ETH | ~$.2555110000 |
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| Configuration (4 calls) | ~200,000 | ~0.00007772 ETH | ~$.1943050000 |
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| **Total** | **~726,000** | **~0.00028213 ETH** | **~$.7053270000** |
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> **Conservative Estimate**: At .388610002 gwei (2.5x of .155444001 gwei), total deployment cost is approximately **0.00028213 ETH ($.7053270000)**.
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## Cost Estimates at Different Gas Prices
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### At 30 gwei (Low Activity)
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| Contract | Gas | Cost (ETH) | Cost (USD @ $2,500/ETH) |
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|----------|-----|------------|-------------------------|
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| CCIPWETH9Bridge | ~263,000 | ~0.00789 ETH | ~$19.73 |
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| CCIPWETH10Bridge | ~263,000 | ~0.00789 ETH | ~$19.73 |
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| Configuration | ~200,000 | ~0.006 ETH | ~$15.00 |
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| **Total** | **~726,000** | **~0.02178 ETH** | **~$54.46** |
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### At 50 gwei (Moderate Network Activity)
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| Contract | Gas | Cost (ETH) | Cost (USD @ $2,500/ETH) |
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|----------|-----|------------|-------------------------|
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| CCIPWETH9Bridge | ~263,000 | ~0.01315 ETH | ~$32.88 |
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| CCIPWETH10Bridge | ~263,000 | ~0.01315 ETH | ~$32.88 |
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| Configuration | ~200,000 | ~0.01 ETH | ~$25.00 |
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| **Total** | **~726,000** | **~0.0363 ETH** | **~$90.75** |
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### At 100 gwei (High Network Activity)
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| Contract | Gas | Cost (ETH) | Cost (USD @ $2,500/ETH) |
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|----------|-----|------------|-------------------------|
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| CCIPWETH9Bridge | ~263,000 | ~0.0263 ETH | ~$65.75 |
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| CCIPWETH10Bridge | ~263,000 | ~0.0263 ETH | ~$65.75 |
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| Configuration | ~200,000 | ~0.02 ETH | ~$50.00 |
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| **Total** | **~726,000** | **~0.0726 ETH** | **~$181.50** |
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## Total Deployment Cost Summary
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### Conservative Estimate (Current: .388610002 gwei)
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- Deployment: ~0.00028213 ETH (~$.7053270000)
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- Configuration: ~0.00007772 ETH (~$.1943050000)
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- **Total**: ~.0003598528 ETH (~$.8996320000)
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**Recommended Budget**: .0003385569 ETH (~$.8463922500)
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### Minimum (30 gwei, low activity)
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- Deployment: ~0.01578 ETH (~$39.46)
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- Configuration: ~0.006 ETH (~$15.00)
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- **Total**: ~0.02178 ETH (~$54.46)
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### Moderate (50 gwei)
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- Deployment: ~0.0263 ETH (~$65.75)
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- Configuration: ~0.01 ETH (~$25.00)
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- **Total**: ~0.0363 ETH (~$90.75)
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### High Activity (100 gwei)
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- Deployment: ~0.0526 ETH (~$131.50)
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- Configuration: ~0.02 ETH (~$50.00)
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- **Total**: ~0.0726 ETH (~$181.50)
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## Recommendations
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1. **Use Conservative Estimates**: Always use 2.5x the highest gas price for safety margin
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2. **Monitor Gas Prices**: Run `./scripts/deployment/get-conservative-gas-price.sh` before deployment
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3. **Deploy during low network activity** (typically weekends or off-peak hours)
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4. **Have buffer ETH** - Keep recommended budget amount for deployments and configuration
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## Real-Time Gas Price Check
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You can check current conservative gas prices using:
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```bash
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# Get conservative gas price (2.5x highest)
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./scripts/deployment/get-conservative-gas-price.sh
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# Calculate conservative costs
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./scripts/deployment/calculate-conservative-costs.sh
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# Update all documentation
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./scripts/deployment/update-all-cost-estimates.sh
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```
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## Notes
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- Gas prices fluctuate based on network activity
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- Conservative estimates use 2.5x the highest gas price between MetaMask and Etherscan
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- Actual costs may be lower than conservative estimates
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- Consider using Layer 2 solutions for lower costs (if applicable)
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- Bridge configuration can be done in separate transactions to spread costs
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