[FEATURE] Multi-chain Deployment & Testing Framework

[Sun-of-Siberia]

Summary

Implement multi-chain deployment scripts and cross-chain testing patterns.

Motivation

As DeFi expands beyond Ethereum mainnet, DSS must support deployment and testing across multiple chains. Multi-chain support enables strategies to reach users on L2s and alternative L1s.

Effort: 5-7 days
Priority: 🟢 Medium

Proposed Solution

1. Multi-chain Deployment

   • Unified deployment script for all supported chains
   • Chain-specific configurations (Ethereum, Arbitrum, Optimism, Polygon, Base)
   • Gas price optimization per chain

2. Cross-chain Testing

   • Forking tests for each chain
   • Chain-specific integration tests
   • Protocol availability validation (Aave, Uniswap, etc.)

3. Chain Detection & Auto-configuration

   • Automatic chain detection in scripts
   • Chain-specific parameter loading
   • RPC endpoint management

Tasks

• Create config/chains/ directory
• Add chain-specific configurations (Ethereum, Arbitrum, Optimism, Polygon, Base, zkSync)
• Implement unified deployment script (scripts/deploy-multichain.ts)
• Add chain detection and auto-configuration
• Create cross-chain testing framework (test/multichain/)
• Implement forking tests for each chain
• Add protocol availability validation (Aave, Uniswap availability by chain)
• Create chain-specific gas optimization guide
• Add multi-chain verification script
• Document multi-chain deployment patterns
• Add chain compatibility matrix

Acceptance Criteria

• ≥5 chains supported (Ethereum, Arbitrum, Optimism, Polygon, Base)
• Unified deployment script working for all chains
• Cross-chain tests passing
• Chain detection automatic
• Protocol availability validated
• Verification working on all chains
• Documentation includes chain-specific considerations

Related

• Issue [FEATURE] DSS-13: Implement CI/CD Automation Workflows #19 (L2 Optimization Guide)
• Issue [FEATURE] DSS-9: Create Deployment & Operational Security Examples #17 (DSS-9: Operational Security)
• specification/part-c-operational.md

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Effort Estimate: 5-7 days
Target Version: v2.0.0
Component: deployment, examples