Cloud Native Sandbox


A standalone Kubernetes and Istio environment with Docker on you own laptop

Cloud Native Sandbox

A standalone Kubernetes and Istio environment with Docker on you own laptop

500 Words | Read in about 2 Min
Tags: cloud native  kubernetes  istio  docker 

Github: https://github.com/rootsongjc/cloud-native-sandbox

Cloud Native Sandbox can help you setup a standalone Kubernetes and istio environment with Docker on you own laptop.

The sandbox integrated with the following components:

  • Kubernetes v1.10.3
  • Istio v1.0.4
  • Kubernetes dashboard v1.8.3

Differences with kubernetes-vagrant-centos-cluster

As I have created the kubernetes-vagrant-centos-cluster to set up a Kubernetes cluster and istio service mesh with vagrantfile which consists of 1 master(also as node) and 3 nodes, but there is a big problem that it is so high weight and consume resources. So I made this light weight sandbox.

Features

  • No VirtualBox or Vagrantfile required
  • Light weight
  • High speed, low drag
  • Easy to operate

Services

As the sandbox setup, you will get the following services.

Cloud Native Sandbox

Record with termtosvg.

Prerequisite

You only need a laptop with Docker Desktop installed and Kubernetes enabled.

Note: Leave enough resources for Docker Desktop. At least 2 CPU, 4G memory.

Install

To start the sandbox, you have to run the following steps.

Kubernetes dashboard(Optional)

Install Kubernetes dashboard.

kubectl apply -f install/dashbaord/

Get the dashboard token.

kubectl -n kube-system describe secret default| awk '$1=="token:"{print $2}'

Expose kubernetes-dashboard service.

kubectl -n kube-system get pod -l k8s-app=kubernetes-dashboard -o jsonpath='{.items[0].metadata.name}'

Login to Kubernetes dashboard on http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/#!/login with the above token.

Istio(Required)

Install istio service mesh with the default add-ons.

# Install istio
kubectl apply -f install/istio/

To expose service grafana on http://localhost:3000.

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=grafana -o jsonpath='{.items[0].metadata.name}') 3000:3000 &

To expose service prometheus on http://localhost:9090.

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=prometheus -o jsonpath='{.items[0].metadata.name}') 9090:9090 &

To expose service jaeger on http://localhost:16686.

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=jaeger -o jsonpath='{.items[0].metadata.name}') 16686:16686 &

To expose service servicegraph on http://localhost:8088/dotviz, http://localhost:8088/force/forcegraph.html.

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=servicegraph -o jsonpath='{.items[0].metadata.name}') 8088:8088 &

Kiali

Install kiali.

kubectl -n istio-system apply -f install/kiali

To expose service kiali on http://localhost:20001.

kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=kiali -o jsonpath='{.items[0].metadata.name}') 20001:20001 &

Bookinfo sample

Deploy bookinfo sample.

# Enable sidecar auto injection
kubectl label namespace default istio-injection=enabled
# Deploy bookinfo sample
kubectl -n default apply -f sample/bookinfo

Visit productpage on http://localhost/productpage.

Let’s generate some loads.

for ((i=0;i<1000;i=i+1));do echo "Step->$i";curl http://localhost/productpage;done

You can watch the service status through http://localhost:3000.

Client tools

To operate the applications on Kubernetes, you should install the following tools.

Required

  • kubectl - Deploy and manage applications on Kubernetes.
  • istioctl - Istio configuration command line utility.

Optional

  • kubectx - Switch faster between clusters and namespaces in kubectl
  • kube-ps1 - Kubernetes prompt info for bash and zsh

See Also

500 Words | Read in about 2 Min
Tags: cloud native  kubernetes  istio  docker