Initial commit: add .gitignore and README

decisions/0004-hybrid-cloud-architecture.md

@@ -0,0 +1,45 @@
+# ADR-0004: Hybrid Cloud Architecture (Proxmox + Azure)
+
+**Status**: Accepted
+**Date**: 2025-01-27
+**Deciders**: Infrastructure team
+
+---
+
+## Context
+
+We need infrastructure that provides:
+- On-premises control and data sovereignty
+- Cloud scalability and services
+- Cost optimization
+- Flexibility
+
+---
+
+## Decision
+
+We will use a hybrid cloud architecture:
+- **On-Premises**: Proxmox VE for compute and storage
+- **Cloud**: Azure for cloud services and Arc integration
+- **Integration**: Azure Arc for unified management
+- **Rationale**: Balances control, scalability, and cost
+
+---
+
+## Consequences
+
+### Positive
+- ✅ Data sovereignty
+- ✅ Cost optimization
+- ✅ Unified management via Azure Arc
+- ✅ Flexible deployment options
+
+### Negative
+- ⚠️ More complex infrastructure
+- ⚠️ Requires hybrid expertise
+- ⚠️ Network connectivity considerations
+
+---
+
+**Status**: Accepted
+