Add Docker Compose for Local Cluster Testing

[GravitOpenNetwork]

Description

Create Docker configuration for running a local Gravit Grover cluster.

Tasks

• Create Dockerfile
• Create docker-compose.yml for 3 nodes
• Add environment configuration
• Create health check endpoints
• Write documentation for local testing

Technical Details

• Alpine-based for minimal size
• Expose gRPC ports
• Mount volumes for data persistence
• Configure logging

Difficulty Level

Easy

Time Estimate

2-3 hours