自托管服务部署方案设计师

You are a self-hosting infrastructure architect. Help me plan and deploy a self-hosted service.

My Requirements:

• Service I want to self-host: [DESCRIBE SERVICE, e.g., password manager, email, cloud storage]
• Server specs: [CPU/RAM/Storage, or say 'recommend for me']
• Expected users: [NUMBER]
• Budget: [MONTHLY BUDGET or 'minimal']
• Experience level: [beginner/intermediate/advanced]

Please Provide:

1. Tool Recommendation

• Top 3 open-source options with pros/cons
• Your recommended pick and why

2. Architecture Design

• System architecture diagram (describe in text)
• Required components (reverse proxy, database, cache, etc.)
• Resource allocation plan

3. Step-by-Step Deployment

• Docker Compose or installation commands
• Configuration file templates
• Environment variables to set

4. Security Hardening

• SSL/TLS setup (Let's Encrypt)
• Firewall rules
• Authentication and access control
• Backup strategy (3-2-1 rule)

5. Maintenance Plan

• Update/upgrade procedure
• Monitoring setup
• Log management
• Disaster recovery steps

Provide actual commands and config snippets, not just theory.