aks-store-demo VS istio

The dev-app Kustomization deploys the GitRepository resource which points to the flux-k8s-ext branch in my AKS Store Demo Manifests repo, and Kustomization resource to deploy the AKS Store Demo application

We'll move really fast through the AKS cluster provisioning, bootstrapping process, and deploying the AKS Store Demo sample app.

# navigate to the home directory or wherever you want to clone the repo cd ~ # fork and clone the repo to your local machine gh repo fork https://github.com/azure-samples/aks-store-demo.git --clone # make sure you are in the aks-store-demo directory cd aks-store-demo # since we are in a forked repo, we need to set the default to be our fork gh repo set-default

We'll deploy my new favorite demo app, AKS Store Demo to our AKS cluster and then make some changes to the application and see how FluxCD handles them.

> git clone https://github.com/smurawski/aks-store-demo > cd aks-store-demo > git checkout origin/helm > git checkout -b helm > git remote add upstream https://github.com/Azure-Samples/aks-store-demo > git fetch upstream > git rebase upstream/main Successfully rebased and updated refs/heads/helm.

AWS EKS provides a managed Kubernetes service, simplifying cluster management and deployment. Istio, an open-source service mesh, enables traffic management, security, and observability across microservices.

Istio is a popular open-source service mesh framework that provides a comprehensive solution for managing, securing, and observing microservices-based applications running on Kubernetes.

Leverage a service mesh like Istio or Linkerd to manage communication between microservices within the Kubernetes cluster. These service meshes can be configured to intercept JMX traffic and enforce access control policies. Benefits:

Open Source and Cloud Computing: A Match Made in Heaven The cloud is accelerating OSS adoption. Cloud-native technologies like Kubernetes [https://kubernetes.io/] and Istio [https://istio.io/], both open-source projects, are revolutionizing how applications are built and deployed across cloud platforms.

Consider the case of Bookinfo, a sample application provided by Istio, rewritten using CloudWeGo's Kitex for superior performance and extensibility.

It is a dedicated infrastructure layer that manages service-to-service communication, providing features like load balancing, encryption, authentication, and monitoring. Istio deploys sidecar proxies alongside each microservice instance. These proxies handle communication, providing features like load balancing, service discovery, encryption, monitoring and authentication.

5Y old post that sounds like they've done similar here: Caddy Issue Istio Issue but doesn't cover much of the implementation

In a production environment there will be a load balancer setup with an Ingress Controller, Service Mesh or some type of Custom Router. This allows all traffic to be sent to the single load balancer IP address and then route the traffic to a service based on the Domain name or subpath. We are using a NGINX ingress controller but service meshes like Istio have been becoming the most popular solution to use as they offer more segmentation, security and granular control.

Flagger is a progressive delivery tool that enables a Kubernetes operator to automate the promotion or rollback of deployments based on metrics analysis. It supports a variety of metrics including Prometheus, Datadog, and New Relic to name a few. It also works well with Istio service mesh, and can implement progressive traffic splitting between primary and canary releases.