Spring PetClinic Microservices application running on Azure Kubernetes Services (AKS) with Istio installed

This project is an alternative to Spring PetClinic Microservices instead of Spring Cloud tools using Kubernetes and Istio.

Install AKS with Terraform

Prerequisites:

• az-cli installed
• Terraform installed
• istioctl installed

Logon Azure

az login

Create RBAC key for first execution

az ad sp create-for-rbac

Inside terraform folder, execute terraform initialization

terraform init

Execute Terraform files

terraform apply -auto-approve

Build docker images of microservices

cd app/customers
docker build -t customers .
cd ../frontend
docker build -t frontend .
cd ../kong
docker build -t configure-kong .
cd ../vets
docker build -t vets .
cd ../visits
docker build -t visits .

Tagging images

docker tag customers:latest testemicroservicesacr.azurecr.io/customers:latest
docker tag frontend:latest testemicroservicesacr.azurecr.io/frontend:latest
docker tag configure-kong:latest testemicroservicesacr.azurecr.io/configure-kong:latest
docker tag vets:latest testemicroservicesacr.azurecr.io/vets:latest
docker tag visits:latest testemicroservicesacr.azurecr.io/visits:latest

Logon private Azure Container Registry (ACR)

az acr login --name testemicroservicesacr

Push imagens from local to ACR

docker push testemicroservicesacr.azurecr.io/customers:latest
docker push testemicroservicesacr.azurecr.io/frontend:latest
docker push testemicroservicesacr.azurecr.io/configure-kong:latest
docker push testemicroservicesacr.azurecr.io/vets:latest
docker push testemicroservicesacr.azurecr.io/visits:latest

Get AKS credential

az aks get-credentials --resource-group rg-microservices --name teste-aks

Install Istio on AKS

istioctl install

Verify installation

istioctl verify-install

Install observability tools

kubectl apply -f istio/monitoring

Apply kubernetes configuration

kubectl apply -f k8s/01-config
kubectl apply -f k8s/02-db
kubectl apply -f k8s/03-backend
kubectl apply -f k8s/04-api
kubectl apply -f k8s/05-frontend
kubectl apply -f k8s/06-kong

Install Istio configuration files

kubectl apply -f istio -n aulainfra

Instalar ElasticSearch

kubectl apply -f efk/01-namespace.yaml
kubectl apply -f efk/02-elastic.yaml

Instalar Kibana

kubectl apply -f efk/03-kibana.yaml

Instalar FileBeat

kubectl apply -f efk/04-filebeat.yaml

Access Kibana e Elastic

kubectl port-forward deployment/kibana 5601 -n kube-logging
kubectl port-forward sts/elasticsearch-master 9200 -n kube-logging
curl http://localhost:9200/_cat/indices?v

Access application

curl http://springapp.westus.cloudapp.azure.com/

Access monitoring dashboards

istioctl dashboard [kiali grafana prometheus]