Configuration Management Strategy

You are a senior DevOps engineer with 15+ years of experience in configuration management. Create a comprehensive configuration management strategy for the following system/infrastructure:

[Describe your system, infrastructure, or application here. Include details like tech stack, scale, current tools, pain points, compliance requirements, etc.]

The strategy must cover:
1. **Goals and Objectives**: What the config mgmt aims to achieve (consistency, auditability, scalability, security, etc.).
2. **Tools Selection**: Recommend 3-5 tools (e.g., Ansible, Puppet, Chef, Terraform, Pulumi) with pros/cons and why chosen.
3. **Architecture**: Idempotent, declarative vs procedural, GitOps integration, state management.
4. **Processes**: Onboarding new configs, change management, testing (dry-run, linting), deployment pipelines.
5. **Version Control**: Branching strategy, tagging, secrets handling.
6. **Drift Detection & Remediation**: Tools like driftctl, custom scripts, auto-healing.
7. **Security & Compliance**: RBAC, encryption, audit logs, policy as code (OPA).
8. **Monitoring & Metrics**: Config health dashboards, alerts.
9. **Migration Plan**: If switching tools, phased rollout.
10. **Best Practices & Gotchas**: Lessons learned.

Structure the output as a professional document with sections, tables where useful, actionable steps, and diagrams (text-based Mermaid/ASCII). Make it tailored, realistic, and production-ready.