Running Istio on EKS

Besides all network overhead, Istio offers very interesting trade-off for sacrificing latency and network overhead for developer productivity and stack independence. In previous posts, I blogged a lot about kubernetes, Istio, Aws, Kops, Eksctl and EKS. Today I will show how to run Istio in AWS using EKS. Keep in mind EKS don't support Alpha* Specs right now(v1,v2 or v3) so some demos from the istio best selection of slideware won't work. But is possible to have istio installed and booking app running.




Running Istio in AWS with EKS and eksctl

Pre-Reqs

install kubectl

curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.13.0/bin/darwin/amd64/kubectl
chmod +x ./kubectl
sudo mv ./kubectl /usr/local/bin/kubectl

install helm

wget https://storage.googleapis.com/kubernetes-helm/helm-v2.12.2-linux-amd64.tar.gz
tar -xzvf helm-v2.12.2-linux-amd64.tar.gz
cd linux-amd64/
sudo mv helm /usr/local/helm
sudo mv tiller /usr/local/tiller

install aws-iam-authenticator

wget https://amazon-eks.s3-us-west-2.amazonaws.com/1.11.5/2018-12-06/bin/linux/amd64/aws-iam-authenticator
chmod +x aws-iam-authenticator

install eksctl

curl --silent --location "https://github.com/weaveworks/eksctl/releases/download/latest_release/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp
sudo mv /tmp/eksctl /usr/local/bin

Create the cluster in EKS with EKSCTL

eksctl create cluster --name devistio --nodes=2 --region=us-west-2 --ssh-public-key=~/.ssh/kp_devpoc_k8s.pub

Install Istio

git clone https://github.com/istio/istio.git
cd istio/
git checkout tags/1.0.5
sudo cp bin/istioctl /usr/local/bin

install istio on k8s

kubectl create -f install/kubernetes/helm/helm-service-account.yaml
helm init --service-account tiller
helm install \
--wait \
--name istio \
--namespace istio-system \
install/kubernetes/helm/istio

Install Bookinfo APP

 kubectl apply -f \
<(istioctl kube-inject -f samples/bookinfo/platform/kube/bookinfo.yaml)
kubectl apply -f samples/bookinfo/networking/bookinfo-gateway.yaml

run the app

export INGRESS_HOST=$(kubectl -n istio-system \
get service istio-ingressgateway \
-o jsonpath='{.status.loadBalancer.ingress[0].hostname}')

export INGRESS_PORT=$(kubectl -n istio-system \
get service istio-ingressgateway \
-o jsonpath='{.spec.ports[?(@.name=="http2")].port}')

export GATEWAY_URL=$INGRESS_HOST:$INGRESS_PORT
xdg-open http://$GATEWAY_URL/productpage

Prometheus Access

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=prometheus -o jsonpath='{.items[0].metadata.name}') 9090:9090
xdg-open http://localhost:9090/graph?g0.range_input=1h&g0.expr=istio_request_bytes_count&g0.tab=0

Delete the cluster

eksctl delete cluster devistio
view raw eks-istio.md hosted with ❤ by GitHub


Cheers,
Diego Pacheco

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