Azure Reliability

---
name: azure-reliability
description: Expert knowledge for Azure Reliability development including best practices, decision making, architecture & design patterns, and limits & quotas. Use when choosing Azure regions/zones, AKS/DB/queue designs, Web PubSub scaling, or DR/failover architectures, and other Azure Reliability related development tasks. Not for Azure Resiliency (use azure-resiliency), Azure Monitor (use azure-monitor), Azure Service Health (use azure-service-health), Azure Sre Agent (use azure-sre-agent).
compatibility: Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or WebFetch to retrieve documentation.
user-invocable: false
---
# Azure Reliability Skill

This skill provides expert guidance for Azure Reliability. Covers best practices, decision making, architecture & design patterns, and limits & quotas. It combines local quick-reference content with remote documentation fetching capabilities.

## How to Use This Skill

> **IMPORTANT for Agent**: Use the **Category Index** below to locate relevant sections. For categories with line ranges (e.g., `L35-L120`), use `read_file` with the specified lines. For categories with file links (e.g., `[security.md](security.md)`), use `read_file` on the linked reference file

This skill requires **network access** to fetch documentation content:
- **Preferred**: Use `mcp_microsoftdocs:microsoft_docs_fetch`. Returns Markdown.
- **Fallback**: Use `WebFetch`. Returns Markdown.

## Category Index

| Category | Lines | Description |
|----------|-------|-------------|
| Best Practices | L28-L69 | Patterns and guidance to design, configure, and harden Azure services (AKS, DBs, networking, messaging, backup, monitoring) for high availability, failover, and disaster recovery. |
| Decision Making | L70-L79 | Guidance on choosing Azure regions and services (regional, zonal, multiregion, nonregional), using region pairs, and designing multi-region architectures for higher reliability. |
| Architecture & Design Patterns | L80-L85 | Designing Azure apps for high availability using zones and multi-region patterns, including zonal vs zone-redundant deployments, hardening strategies, and non-paired region failover. |
| Limits & Quotas | L86-L90 | Guidance on Azure Queue Storage message size limits and designing reliable, scalable Azure Web PubSub apps under service quotas and constraints |

### Best Practices
| Topic | URL |
|-------|-----|
| Design resilient clusters in Azure Kubernetes Service | https://learn.microsoft.com/en-us/azure/reliability/reliability-aks |
| Configure reliability for Azure API Center | https://learn.microsoft.com/en-us/azure/reliability/reliability-api-center |
| Build resilient configurations with Azure App Configuration | https://learn.microsoft.com/en-us/azure/reliability/reliability-app-configuration |
| Build resilient configurations with Azure App Configuration | https://learn.microsoft.com/en-us/azure/reliability/reliability-app-configuration |
| Harden Azure App Service Environment reliability | https://learn.microsoft.com/en-us/azure/reliability/reliability-app-service-environment |
| Architect highly available Azure Application Gateway v2 | https://learn.microsoft.com/en-us/azure/reliability/reliability-application-gateway-v2 |
| Design resilient backup strategies with Azure Backup | https://learn.microsoft.com/en-us/azure/reliability/reliability-backup |
| Design resilient backup strategies with Azure Backup | https://learn.microsoft.com/en-us/azure/reliability/reliability-backup |
| Plan reliability for Azure Bot Service | https://learn.microsoft.com/en-us/azure/reliability/reliability-bot |
| Design resilient Azure Cosmos DB deployments | https://learn.microsoft.com/en-us/azure/reliability/reliability-cosmos-db |
| Design resilient Azure Cosmos DB deployments | https://learn.microsoft.com/en-us/azure/reliability/reliability-cosmos-db |
| Harden Azure Data Factory for outages | https://learn.microsoft.com/en-us/azure/reliability/reliability-data-factory |
| Design resilient Azure Database for MySQL deployments | https://learn.microsoft.com/en-us/azure/reliability/reliability-database-mysql |
| Design resilient Azure Database for MySQL deployments | https://learn.microsoft.com/en-us/azure/reliability/reliability-database-mysql |
| Implement resiliency for Azure Database for PostgreSQL | https://learn.microsoft.com/en-us/azure/reliability/reliability-database-postgresql |
| Implement resilient architectures in Azure Databricks | https://learn.microsoft.com/en-us/azure/reliability/reliability-databricks |
| Ensure reliability for Azure Device Registry metadata | https://learn.microsoft.com/en-us/azure/reliability/reliability-device-registry |
| Design resilient architectures for Azure DNS Private Resolver | https://learn.microsoft.com/en-us/azure/reliability/reliability-dns-private-resolver |
| Design high availability for Azure DocumentDB | https://learn.microsoft.com/en-us/azure/reliability/reliability-documentdb |
| Implement resilient Azure Elastic SAN deployments and recovery | https://learn.microsoft.com/en-us/azure/reliability/reliability-elastic-san |
| Implement resilient architectures with Azure Elastic SAN | https://learn.microsoft.com/en-us/azure/reliability/reliability-elastic-san |
| Build resilient architectures with Azure Event Grid | https://learn.microsoft.com/en-us/azure/reliability/reliability-event-grid |
| Increase reliability of Azure Event Hubs streaming | https://learn.microsoft.com/en-us/azure/reliability/reliability-event-hubs |
| Design reliable analytics with Microsoft Fabric | https://learn.microsoft.com/en-us/azure/reliability/reliability-fabric |
| Design reliable and resilient Azure Functions workloads | https://learn.microsoft.com/en-us/azure/reliability/reliability-functions |
| Design reliable and resilient Azure Functions workloads | https://learn.microsoft.com/en-us/azure/reliability/reliability-functions |
| Implement disaster recovery for Azure Image Builder | https://learn.microsoft.com/en-us/azure/reliability/reliability-image-builder |
| Design resilient architectures with Azure Load Balancer | https://learn.microsoft.com/en-us/azure/reliability/reliability-load-balancer |
| Design resilient architectures with Azure Load Balancer | https://learn.microsoft.com/en-us/azure/reliability/reliability-load-balancer |
| Design resilient workflows with Azure Logic Apps | https://learn.microsoft.com/en-us/azure/reliability/reliability-logic-apps |
| Improve reliability of Azure Managed Grafana workspaces | https://learn.microsoft.com/en-us/azure/reliability/reliability-managed-grafana |
| Increase reliability of Azure Managed Redis caches | https://learn.microsoft.com/en-us/azure/reliability/reliability-managed-redis |
| Implement resilient logging with Azure Monitor Logs | https://learn.microsoft.com/en-us/azure/reliability/reliability-monitor-logs |
| Improve reliability of Azure Notification Hubs | https://learn.microsoft.com/en-us/azure/reliability/reliability-notification-hubs |
| Harden Azure Private Link Service for high reliability | https://learn.microsoft.com/en-us/azure/reliability/reliability-private-link-service |
| Increase reliability of Azure Stream Analytics jobs | https://learn.microsoft.com/en-us/azure/reliability/reliability-stream-analytics |
| Design resilient architectures with Azure Traffic Manager | https://learn.microsoft.com/en-us/azure/reliability/reliability-traffic-manager |
| Design resilient workloads on Azure VMware Solution | https://learn.microsoft.com/en-us/azure/reliability/reliability-vmware-solution |

### Decision Making
| Topic | URL |
|-------|-----|
| Choose Azure services by region type and category | https://learn.microsoft.com/en-us/azure/reliability/availability-service-by-category |
| Choose Azure services with availability zone support | https://learn.microsoft.com/en-us/azure/reliability/availability-zones-service-support |
| Select Azure regions with geography and pairing data | https://learn.microsoft.com/en-us/azure/reliability/regions-list |
| Design multi-region solutions in nonpaired Azure regions | https://learn.microsoft.com/en-us/azure/reliability/regions-multi-region-nonpaired |
| Select Azure services with built-in multiregion support | https://learn.microsoft.com/en-us/azure/reliability/regions-multiregion-support |
| Select and understand Azure nonregional services | https://learn.microsoft.com/en-us/azure/reliability/regions-nonregional-services |

### Architecture & Design Patterns
| Topic | URL |
|-------|-----|
| Enable and plan zone-resilient Azure workloads | https://learn.microsoft.com/en-us/azure/reliability/availability-zones-enable-zone-resiliency |
| Design and harden zonal Azure resource deployments | https://learn.microsoft.com/en-us/azure/reliability/availability-zones-zonal-resource-resiliency |

### Limits & Quotas
| Topic | URL |
|-------|-----|
| Understand Azure Queue Storage message size limits | https://learn.microsoft.com/en-us/azure/reliability/reliability-storage-queue |
| Plan reliability and scale for Azure Web PubSub | https://learn.microsoft.com/en-us/azure/reliability/reliability-web-pubsub |