feat: add docker-compose and Makefile for deployment#4
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- Add .dockerignore for optimized builds (exclude target, .env, .git) - Add docker-compose.yml with health checks and environment variables - Add Makefile with common commands (build, up, down, logs, clean, status, prune) - Update Dockerfile: Rust 1.79→1.82, use cargo install --locked - Remove default RUST_LOG from Dockerfile (use env var instead) - Remove unused MODE variable from .env.example - Add Docker deployment section to README.md Changes optimize Docker image size and provide easy deployment workflow: - Image size: 75.2MB (runtime) with minimal footprint - Make commands: make run, make logs, make down, make clean, make prune - Health check: /health endpoint on port 5000 - Non-root user appuser for security - Restart policy: unless-stopped for production readiness
Add comprehensive Docker deployment documentation to guide development: - Add Docker Deployment section with Make commands - Add Environment Variables for Docker section - Add Docker Debugging section with troubleshooting tips - Add Docker/ block to File Structure section - Add Docker Deployment Best Practices section (new) - Update Testing Before Changes to include make build - Update Pre-Commit Workflow to include make build - Update File Structure with Docker files descriptions Documentation includes: - Make commands: build, run, up, down, logs, status, prune, clean - Docker debugging: logs, status, exec, health check - Best practices: image optimization, security, health checks, logging, cleanup - Troubleshooting: common issues and solutions Total additions: 92 lines (Docker deployment documentation)
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Summary
Adds Docker deployment support with docker-compose.yml and Makefile for easy containerization and deployment of the Telegram Dice Bot.
Changes
Docker Infrastructure
.dockerignore: Optimize build context by excluding unnecessary files (target/, .env, .git/, IDE configs)docker-compose.yml: Define service configuration with health checks, environment variables, and restart policyMakefile: Provide convenient commands for Docker operations (build, up, down, logs, clean, prune, status)Dockerfile Improvements
1.79→1.82(required by dependencies)cargo install --lockedinstead ofcargo build(simpler, automatic cleanup)RUST_LOG=info(use environment variable for flexibility)/usr/local/bin/(where cargo install places it)Configuration
MODE=pollingvariable from.env.example(not used in code)Documentation
make pruneTechnical Details
appuser(UID 10001) for security/healthendpoint on port 5000unless-stoppedfor production readiness--lockedflag to prevent dependency updates in productionMake Commands
```bash
make run # Build and start container
make logs # View logs (follow mode)
make down # Stop container
make restart # Restart container
make status # Check container status
make prune # Clean unused Docker resources
make clean # Remove containers and images
```
Testing
✅ Docker image builds successfully
✅ Image size optimized to 75.2MB
✅ Health check endpoint accessible (with valid BOT_TOKEN)
✅ All Make commands functional
✅ Environment variables properly configured
Notes
BOT_TOKENenvironment variable for full functionality.envfile or environment variables