Before you start executing commands from below chapters, please make sure you have installed
Below command will use kind to create local Kubernetes clusters and Container Registry
# brew install kind
./kind-create-cluster-and-registry.sh
Once we have up an running kubernetes cluster and container registry we can install Istio:
kubectl create namespace istio-system
helm install istio-base istio/base -n istio-system
helm install istiod istio/istiod -n istio-system --wait
We will also install istio ingress:
kubectl create namespace istio-ingress
kubectl label namespace istio-ingress istio-injection=enabled
helm install istio-ingress istio/gateway -n istio-ingress --wait
Once istio and ingress are installed on our cluster we can deploy also addons:
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.13/samples/addons/prometheus.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.13/samples/addons/grafana.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.13/samples/addons/kiali.yaml
kubectl apply -f https://raw.githubusercontent.com/istio/istio/release-1.13/samples/addons/jaeger.yaml
Next we can install Flagger
helm repo add flagger https://flagger.app
kubectl apply -f https://raw.githubusercontent.com/fluxcd/flagger/main/artifacts/flagger/crd.yaml
helm upgrade -i flagger flagger/flagger --namespace=istio-system --set crd.create=false --set meshProvider=istio --set metricsServer=http://prometheus:9090
Now we can build our rest application as a Docker image and push it to local registry
docker build -t localhost:5001/helloapi:v0.0.1 .
docker push localhost:5001/helloapi:v0.0.1
Application by default is running on 8080 port and returns 200 response on /
kubectl create namespace demo
kubectl label namespace demo istio-incection=enabled
kubectl apply -f helloapi-deployment.yaml
kubectl apply -f helloapi-canary.yaml
kubectl apply -f helloapi-gateway.yaml
In order to verify that our application is available through istio-ingress I deployed Metallb on kind cluster by following https://kind.sigs.k8s.io/docs/user/loadbalancer/ instructions
Below screenshot shows that everything is working as expected
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