Deploying a sample Microservice Application using Kubernetes and Istio Service Mesh — Part 2

This article is the first of the 3 part series

1. Install Ubuntu 20.01 on Oracle VirtualBox
2. Install Docker & Kubernetes using Minikube on Ububtu OS
3. Install Istio and Deploy the sample Microservice application

Part 2: Install Docker & Kubernetes using Minikube on Ububtu OS

Approx. time required : 60–90 minutes

Start the VM and open a New Terminal (Ctrl + Alt + T)

Install a few basic tools

sudo apt update
sudo apt install -y vim curl

Install and enable Docker to start automatically on boot

sudo apt install -y docker.io
sudo systemctl start docker
sudo systemctl enable docker
sudo usermod -aG docker $USER

Restart the Ubuntu OS for the new Group changes to take effect

sudo reboot

Verify if docker is installed successfully

docker version

If everything went well, you should see an output something like this

Disable Swap Memory

sudo swapoff -a
sudo vim/etc/fstab  (Inside this file, comment out the /swapfile line)

Download and Install latest version of Minikube

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
sudo install minikube-linux-amd64 /usr/local/bin/minikube
minikube start

A successful minikube startup should look something like this

(In case you run into an error that says “Exiting due to RSRC_INSUFFICIENT_CORES: Docker has less than 2 CPUs available, but Kubernetes requires at least 2 to be available”, follow the below steps to fix it)

• Power off the Ubuntu OS
• Click on Settings for your Virtual Machine in Virtual Box Console
• Select System and under the Processor Tab, increase the processor count to 2 (or more)
• Save and start the Virtual Machine

Verify the minkube startup status

minikube status

Install kubectl for accessing the kubernetes api

curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add
sudo apt-add-repository “deb http://apt.kubernetes.io/ kubernetes-xenial main”
sudo apt install kubectl

Verify kubernetes cluster status

kubectl get nodes

This completes the entire setup of Part-2 and you should be all set to start the next phase.

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