AZ-104 Certification Notes

Chapter 11.6 - Using Azure Kubernetes Service

ACI Limitations
- Scalability
  - Manual redeployment is required to scale up a container group
- Management
  - Orchestrating multi-container container group solutions are cumbersome without an orchestration layer

Kubernetes Benefits
- Scalability
  - Can easily scale containers to meet demand
- Management
  - Provides an orchestration layer for clusters

AKS
- What is it?
  - Azure Kubernetes Service (AKS) is a serverless platform for Kubernetes. It provides scalable container solutions
- Why use it?
  - AKS abstracts away the management of a Kubernetes cluster by managing most of the deployment and orchestration
AKS provides
- Autoscaling
  - Pods and Clusters
- Identity and Access Management
  - Azure AD Integration
- Storage Volumes
  - Azure Storage
- Networking
  - VNets, NSGs, and network policies

Management
- Autoscaling of clusters and horizontal scaling of pods. Manage node pool configurations, and Kubernetes versioning and upgrades
Identity
- Provide access to AKS cluster using Azure AD identity objects and Role-Based Access Control (RBAC). Provide an identity for the cluster to manage underlying resources
Networking
- VNet connectivity integrated via kubenet or Container Network Interface (CNI). HTTP app routing available. Manage traffic using network policies
Storage
- Implement storage volumes that are either static or dynamic
Registry
- Store container images in Azure Container Registry, Docker Hub, or other public/private repos. Docker images are supported