Feature/on premises only

ON_PREMISES_README.md

@@ -0,0 +1,231 @@
+# On-Premises Only Deployment
+
+**Branch:** `feature/on-premises-only`  
+**Status:** 🚀 Ready to Implement
+
+---
+
+## 🎯 Zero Cloud Dependencies
+
+This branch provides a **complete on-premises deployment** with **NO Azure, AWS, GCP, or any cloud provider**.
+
+```
+NO CLOUD │ 100% LOCAL │ AIR-GAP READY
+```
+
+---
+
+## 📖 Documentation
+
+**Complete Guide:** [`docs/34_ON_PREMISES_DEPLOYMENT.md`](docs/34_ON_PREMISES_DEPLOYMENT.md)
+
+---
+
+## 🏗️ What You Can Use
+
+### Hypervisors (Choose One)
+- ✅ **VMware vSphere/ESXi** - Commercial (free version available)
+- ✅ **Proxmox VE** - Open source (completely free)
+- ✅ **Microsoft Hyper-V** - Included with Windows Server
+- ✅ **KVM/QEMU** - Open source (completely free)
+- ✅ **Bare Metal** - No virtualization
+
+### Software (All Free/Open Source)
+- ✅ **Ansible/AWX** - Automation
+- ✅ **Terraform** - Infrastructure provisioning
+- ✅ **Prometheus/Grafana** - Monitoring
+- ✅ **HashiCorp Vault** - Secrets management
+- ✅ **PostgreSQL** - Database
+- ✅ **K3s** - Lightweight Kubernetes (Tier 3)
+- ✅ **MinIO** - S3-compatible storage
+
+---
+
+## 💰 Cost Comparison
+
+| Timeframe | On-Premises | Cloud (Azure) |
+|-----------|-------------|---------------|
+| **Year 1** | $10-50k (hardware) | $6-36k (monthly fees) |
+| **Year 2** | $0 (owned) | $12-72k (total) |
+| **Year 3** | $0 (owned) | $18-108k (total) |
+| **Break-even** | 12-18 months | N/A |
+
+**After break-even:** Pure savings, only power/cooling costs
+
+---
+
+## 🔐 Key Benefits
+
+### ✅ Air-Gap Capable
+- No internet required
+- Complete isolation
+- Zero external attack surface
+
+### ✅ Data Sovereignty
+- Data never leaves your facility
+- Full compliance control
+- No third-party access
+
+### ✅ Cost Predictable
+- One-time hardware purchase
+- No monthly subscription
+- No surprise charges
+
+### ✅ Full Control
+- You own the hardware
+- No vendor lock-in
+- Switch platforms anytime
+
+---
+
+## 📊 Hardware Requirements
+
+### Tier 1 (50-100 users)
+```
+1 server: 24 vCPU, 128 GB RAM, 2 TB SSD
+Cost: ~$10,000
+```
+
+### Tier 2 (500-1,000 users)
+```
+3 servers: 32 vCPU, 256 GB RAM, 12 TB each
+Cost: ~$40,000
+```
+
+### Tier 3 (3,000-5,000 users)
+```
+6 servers: 48 vCPU, 512 GB RAM, 24 TB each
+Cost: ~$150,000
+```
+
+---
+
+## 🚀 Quick Start
+
+### 1. Switch to Branch
+```bash
+git checkout feature/on-premises-only
+```
+
+### 2. Choose Hypervisor
+```bash
+# Example: Proxmox (free)
+cd terraform/on-premises/proxmox-tier1
+```
+
+### 3. Deploy
+```bash
+terraform init
+terraform plan
+terraform apply
+```
+
+### 4. Run Migration
+```bash
+cd ../../ansible
+ansible-playbook playbooks/master_migration.yml
+```
+
+---
+
+## 🎯 Use Cases
+
+### Government/Defense
+- Air-gapped networks
+- Classified data
+- No cloud allowed
+
+### Healthcare
+- HIPAA compliance
+- PHI must stay on-site
+- Data sovereignty
+
+### Financial
+- Regulatory requirements
+- No external data storage
+- Complete control
+
+### Manufacturing
+- OT/ICS environments
+- No internet connectivity
+- Industrial networks
+
+---
+
+## 🤝 Comparison with Main Branch
+
+| Aspect | Main Branch (Cloud) | This Branch (On-Prem) |
+|--------|---------------------|----------------------|
+| **Orchestration** | Azure VMs | Your VMs |
+| **Kubernetes** | Azure AKS | K3s/RKE2 |
+| **Database** | Azure PostgreSQL | Self-hosted PostgreSQL |
+| **Storage** | Azure Storage | NFS/MinIO/Local |
+| **Monitoring** | Azure Monitor | Prometheus/Grafana |
+| **Cost Model** | Monthly subscription | One-time capex |
+| **Internet** | Required | Optional |
+| **Air-gap** | Not possible | Fully supported |
+
+---
+
+## ✅ What's the Same?
+
+Both branches provide:
+- ✅ Same migration automation
+- ✅ Same Ansible playbooks
+- ✅ Same ADMT functions
+- ✅ Same testing framework
+- ✅ Same monitoring dashboards
+- ✅ Same self-healing
+- ✅ Same DR capabilities
+
+**Only difference:** Where it runs (cloud vs on-prem)
+
+---
+
+## 📝 Status
+
+### ✅ Completed
+- [x] Complete deployment guide
+- [x] Architecture documentation
+- [x] Hardware sizing
+- [x] Cost comparison
+
+### 🚧 To Do
+- [ ] Terraform configs for VMware
+- [ ] Terraform configs for Proxmox
+- [ ] Terraform configs for Hyper-V
+- [ ] Terraform configs for KVM
+- [ ] K3s deployment automation
+- [ ] On-premises backup scripts
+
+---
+
+## 💡 When to Use This Branch
+
+**Use On-Premises if:**
+- ✅ Air-gapped environment required
+- ✅ Data must stay on-site
+- ✅ No cloud allowed (policy/compliance)
+- ✅ Long-term cost savings important
+- ✅ Already have hardware/virtualization
+- ✅ Prefer capex over opex
+
+**Use Cloud (main branch) if:**
+- ✅ Fast deployment needed
+- ✅ No hardware available
+- ✅ Temporary project
+- ✅ Prefer opex over capex
+- ✅ Want managed services
+- ✅ Global distribution needed
+
+---
+
+**Both are valid approaches!** Choose based on your requirements.
+
+---
+
+**Version:** 1.0  
+**Last Updated:** January 2025  
+**Branch:** feature/on-premises-only  
+**Status:** Ready for implementation
+