Merge pull request #265590 from anaharris-ms/rel-ag-containers

Reliability: Azure App gateway for containers

Author: v-dirichards

articles/application-gateway/for-containers/faq.yml

@@ -24,12 +24,6 @@ sections:
 
       - question: How does Application Gateway for Containers handle routine maintenance?
         answer: Routine maintenance and updates are designed to not be service impacting and require no customer intervention. For updates that might break existing configurations or cause existing product functionality changes, notifications are published via [Azure Service Health](../../service-health/alerts-activity-log-service-notifications-portal.md). These notifications are also sent via email to subscription service administrators.
-
-  - name: Performance
-    questions:
-      - question: How does Application Gateway for Containers support high availability and scalability?
-        answer: Application Gateway for Containers automatically ensures underlying components are spread across availability zones for increased resiliency, if the Azure region supports it.  If the region doesn't support zones, fault domains and update domains be used to help mitigate impact during planned maintainence and unexpected failures.
-          
   - name: Configuration - TLS
     questions:
       - question: Does Application Gateway for Containers support reencryption (end-to-end encryption) of traffic to backend targets?

articles/application-gateway/for-containers/index.yml

@@ -39,6 +39,8 @@ landingContent:
             url: alb-controller-backend-health-metrics.md
           - text: Metrics
             url: application-gateway-for-containers-metrics.md
+          - text: Reliability in Application Gateway for Containers
+            url: ../../reliability/reliability-app-gateway-containers.md?toc=/azure/application-gateway/for-containers/toc.json
           - text: Frequently asked questions
             url: faq.yml
       - linkListType: whats-new

articles/application-gateway/for-containers/toc.yml

@@ -23,6 +23,8 @@
     href: session-affinity.md
   - name: TLS policy
     href: tls-policy.md
+  - name: Reliability in Application Gateway for Containers
+    href: ../../reliability/reliability-app-gateway-containers.md?toc=/azure/application-gateway/for-containers/toc.json
   - name: Frequently Asked Questions (FAQ)
     href: faq.yml
   - name: Health monitoring

articles/reliability/TOC.yml

@@ -278,6 +278,8 @@
       href: ../active-directory-domain-services/tutorial-create-replica-set.md?toc=/azure/reliability/toc.json&bc=/azure/reliability/breadcrumb/toc.json
   - name: Strategic services
     items:
+    - name: Azure Application Gateway for Containers
+      href: reliability-app-gateway-containers.md
     - name: Azure Chaos Studio
       href: reliability-chaos-studio.md
     - name: Azure Community Training

articles/reliability/reliability-app-gateway-containers.md

@@ -0,0 +1,34 @@
+---
+title: Reliability in Azure Application Gateway for Containers
+description: Find out about reliability in Azure Application Gateway for Containers.
+author: anaharris-ms
+ms.author: anaharris
+ms.topic: conceptual
+ms.service: application-gateway
+ms.subservice: appgw-for-containers
+ms.custom: subject-reliability, references_regions
+ms.date: 02/07/2024 
+---
+
+
+# Reliability in Azure Application Gateway for Containers
+
+
+This article describes reliability and availability zones support in [Azure Application Gateway for Containers](/azure/application-gateway/for-containers/overview). For a more detailed overview of reliability in Azure, see [Azure reliability](/azure/architecture/framework/resiliency/overview).
+
+
+## Availability zone support
+
+[!INCLUDE [Availability zone description](includes/reliability-availability-zone-description-include.md)]
+
+
+Application Gateway for Containers (AGC) is always deployed in a highly available configuration.  For Azure regions that support availability zones, AGC is automatically configured as zone redundant.  For regions that don't support availability zones, availability sets are used.
+
+### Prerequisites
+
+To deploy with availability zone support, you must choose a region that supports availability zones. To see which regions support availability zones, see the [list of supported regions](availability-zones-service-support.md#azure-regions-with-availability-zone-support). 
+
+
+## Next steps
+
+- [Reliability in Azure](/azure/availability-zones/overview)

articles/reliability/reliability-guidance-overview.md

@@ -101,6 +101,7 @@ For a more detailed overview of reliability principles in Azure, see [Reliabilit
 
 | Product| Availability zone guide | Disaster recovery guide |
 |-------|-------|-------|
+|Azure Application Gateway for Containers | [Reliability in Azure Application Gateway for Containers](reliability-app-gateway-containers.md) | [Reliability in Azure Application Gateway for Containers](reliability-app-gateway-containers.md)|
 |Azure Chaos Studio | [Reliability in Azure Chaos Studio](reliability-chaos-studio.md)| [Reliability in Azure Chaos Studio](reliability-chaos-studio.md)|
 |Azure Community Training|[Reliability in Community Training](reliability-community-training.md) |[Reliability in Community Training](reliability-community-training.md) |
 |Azure Cosmos DB for MongoDB vCore|[High availability in Azure Cosmos DB for MongoDB vCore](/azure/cosmos-db/mongodb/vcore/high-availability?toc=/azure/reliability/toc.json&bc=/azure/reliability/breadcrumb/toc.json)|[Failover for business continuity and disaster recovery with Azure Cosmos DB for MongoDB vCore](../cosmos-db/mongodb/vcore/failover-disaster-recovery.md?toc=/azure/reliability/toc.json&bc=/azure/reliability/breadcrumb/toc.json) |