2121 07 Backup Dr Plan 76326532

# 🛡️ Backup and Disaster Recovery Plan: terraform-e2e

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<details open>
<summary><strong>📑 DR Plan Contents</strong></summary>

- [📋 Executive Summary](#-executive-summary)
- [🎯 1. Recovery Objectives](#-1-recovery-objectives)
- [💾 2. Backup Strategy](#-2-backup-strategy)
- [🌍 3. Disaster Recovery Procedures](#-3-disaster-recovery-procedures)
- [🧪 4. Testing Schedule](#-4-testing-schedule)
- [📢 5. Communication Plan](#-5-communication-plan)
- [👥 6. Roles and Responsibilities](#-6-roles-and-responsibilities)
- [🔗 7. Dependencies](#-7-dependencies)
- [📖 8. Recovery Runbooks](#-8-recovery-runbooks)
- [📎 9. Appendix](#-9-appendix)
- [References](#references)

</details>

> Generated by as-built agent | 2026-02-26

<div align="center">

| ⬅️ Previous                                          | 📑 Index            | Next ➡️                                            |
| ---------------------------------------------------- | ------------------- | -------------------------------------------------- |
| [07-resource-inventory.md](07-resource-inventory.md) | [README](README.md) | [07-compliance-matrix.md](07-compliance-matrix.md) |

</div>

**Generated**: 2026-02-26
**Version**: 1.0
**Environment**: dev
**Primary Region**: swedencentral
**Secondary Region**: germanywestcentral (planned failover target)

---

## 📋 Executive Summary

This plan defines backup and recovery procedures for the deployed Terraform workload.

| Metric | Current | Target |
| ------ | ------- | ------ |
| **RPO** | 12 hours | 12 hours |
| **RTO** | 24 hours | 24 hours |
| **Availability Objective** | 99.5% | 99.5% |

Current posture is single-region with manual DR orchestration.

---

## 🎯 1. Recovery Objectives

### 1.1 Recovery Time Objective (RTO)

| Tier | RTO Target | Services |
| ---- | ---------- | -------- |
| 🔴 Critical | 24 hours | Backend App Service, SQL DB |
| 🟠 Important | 24 hours | Frontend App Service, Key Vault |
| 🟢 Standard | 48 hours | App Insights, Log Analytics, smart detector rules |

### 1.2 Recovery Point Objective (RPO)

| Data Type | RPO Target | Backup Strategy |
| --------- | ---------- | --------------- |
| SQL ecommerce data | 12 hours | Azure SQL automated backups + point-in-time restore |
| Infrastructure config | 1 hour | Terraform code in Git + remote state |
| Operational telemetry | 24 hours | Log Analytics retention + App Insights historical data |

---

## 💾 2. Backup Strategy

### 2.1 Azure SQL Database

| Setting | Configuration |
| ------- | ------------- |
| Backup Type | Platform-managed automated backups |
| Backup Redundancy | Geo |
| Restore Type | Point-in-time restore |
| Target DB | sqldb-terraform-e2e-dev |

**Point-in-Time Restore Command:**

```bash
az sql db restore \
  --resource-group rg-terraform-e2e-dev \
  --server sql-terraform-e2e-dev-3hpu \
  --name sqldb-terraform-e2e-dev \
  --dest-name sqldb-terraform-e2e-dev-restored \
  --time "<UTC timestamp>"
```

### 2.2 Key Vault

| Setting | Configuration |
| ------- | ------------- |
| Soft Delete | Enabled |
| Purge Protection | Enabled |
| Auth Model | RBAC |

### 2.3 Terraform State and IaC

| Setting | Configuration |
| ------- | ------------- |
| Source backup | Git repository history |
| State backend | Azure Blob (`azurerm` backend) |
| Recovery mechanism | `terraform init` + `terraform apply` from known commit |

---

## 🌍 3. Disaster Recovery Procedures

### 3.1 Failover Procedure

1. Declare incident and confirm primary-region impact.
2. Freeze non-essential changes in current environment.
3. Select `germanywestcentral` as failover location.
4. Update Terraform variable `location` and deploy core stack.
5. Restore SQL data from latest viable recovery point.
6. Validate frontend/backend health and data consistency.
7. Communicate failover completion.

### 3.2 Failback Procedure

1. Confirm primary region stability for a sustained window.
2. Reconcile drift and data deltas.
3. Re-deploy primary environment from Terraform baseline.
4. Re-point traffic and run validation checks.
5. Decommission temporary failover resources when approved.

---

## 🧪 4. Testing Schedule

| Test Type | Frequency | Last Test | Next Test |
| --------- | --------- | --------- | --------- |
| SQL restore test | Quarterly | Not recorded | Next quarter from publication date |
| Terraform rebuild test | Quarterly | Not recorded | Next quarter from publication date |
| End-to-end DR drill | Semi-annual | Not recorded | Next half-year from publication date |

---

## 📢 5. Communication Plan

| Audience | Channel | Template |
| -------- | ------- | -------- |
| Engineering | Teams/Slack | Incident update template |
| Stakeholders | Email | Business impact summary |
| Governance | Ticket system | Control impact + remediation plan |

---

## 👥 6. Roles and Responsibilities

| Role | Team | Responsibility |
| ---- | ---- | -------------- |
| Incident Commander | team-terraform lead | DR decision and execution oversight |
| Platform Engineer | team-terraform | Terraform deploy/recover operations |
| Application Owner | app team | App validation and smoke tests |
| Security Reviewer | governance/security | Post-incident control verification |

---

## 🔗 7. Dependencies

| Dependency | Impact | Mitigation |
| ---------- | ------ | ---------- |
| Azure control plane availability | Blocks redeploy/failover | Use tested scripts and documented manual fallback |
| SQL restore point viability | Data recovery risk | Regular restore tests and retention verification |
| Identity and RBAC continuity | Access disruption risk | Verify role assignments in post-failover checklist |

---

## 📖 8. Recovery Runbooks

| Scenario | Runbook | Owner |
| -------- | ------- | ----- |
| SQL corruption or deletion | Restore DB from PITR and repoint app config | Platform + DBA |
| App runtime outage | Restart apps, rollback config, redeploy if needed | Platform on-call |
| Region outage | Regional Terraform redeploy + SQL recovery | Incident Commander |

---

## 📎 9. Appendix

- Source of current resource names and IDs: [07-resource-inventory.md](./07-resource-inventory.md)
- Day-2 command baseline: [07-operations-runbook.md](./07-operations-runbook.md)
- Compliance dependencies: [07-compliance-matrix.md](./07-compliance-matrix.md)

---

## References

| Topic | Link |
| ----- | ---- |
| Azure Backup overview | [Overview](https://learn.microsoft.com/azure/backup/backup-overview) |
| Azure SQL restore | [Restore DB](https://learn.microsoft.com/azure/azure-sql/database/recovery-using-backups) |
| DR planning | [Well-Architected DR](https://learn.microsoft.com/azure/well-architected/reliability/disaster-recovery) |

---

<div align="center">

| ⬅️ [07-resource-inventory.md](07-resource-inventory.md) | 🏠 [Project Index](README.md) | ➡️ [07-compliance-matrix.md](07-compliance-matrix.md) |
| ------------------------------------------------------- | ----------------------------- | ----------------------------------------------------- |

</div>