Kubernetes

Installing Kubernetes on AWS Using Kops

One Linux/Ubuntu Virtual Machine is Required (Our Example is Based on AWS Linux)

Create a new IAM role for EC2 with admin access.

Attache IAM role to EC2 instance

Install kops by following its official installation guide.

$curl -LO https://github.com/kubernetes/kops/releases/download/$(curl -s https://api.github.com/repos/kubernetes/kops/releases/latest | grep tag_name | cut -d '"' -f 4)/kops-linux-amd64
$chmod +x kops-linux-amd64
$sudo mv kops-linux-amd64 /usr/local/bin/kops

Checking kops version.

$kops version

Install kubectl by following its official installation guide

$curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
$curl -LO https://storage.googleapis.com/kubernetes-release/release/v1.12.0/bin/linux/amd64/kubectl
$chmod +x ./kubectl
$sudo mv ./kubectl /usr/local/bin/kubectl

Checking kubectl version.

$kubectl version

Create an AWS S3 bucket for kops to persist its state.

$bucket_name=sample-kops-state-store
$aws s3 mb s3://${bucket_name} --region us-west-2

Create domain from free websites dot.tk

  Create Hosted Zone under AWS Route 53, Hosted Zone name must match with domain you created in previous step

  Takse DNS servers and update them in dot.tk under your domain name servers

Provide a name for the Kubernetes cluster and set the S3 bucket URL in the following environment variables.

export KOPS_CLUSTER_NAME=sample.com
export KOPS_STATE_STORE=s3://${bucket_name}

Create a ssh key pair before run the create cluster command this is used in

$ssh-keygen

kops create cluster help command to find additional parameters.

$kops create cluster --help

Create a Kubernetes cluster definition using kops by providing the required fields.

$kops create cluster \
--state=${KOPS_STATE_STORE} \
--node-count=2 \
--master-size=t2.micro \
--node-size=t2.micro \
--zones=us-west-1a \
--name=${KOPS_CLUSTER_NAME}

If it show any ssh required after running above command

$kops create secret sshpublickey admin -i ~/.ssh/id_rsa.pub --name=${KOPS_CLUSTER_NAME} --state=${KOPS_STATE_STORE}

Review the Kubernetes cluster definition by executing the below command

$kops edit cluster --name=${KOPS_CLUSTER_NAME} --state=${KOPS_STATE_STORE}

Now create the Kubernetes cluster on AWS by executing kops update command

$kops update cluster --name=${KOPS_CLUSTER_NAME} --state=${KOPS_STATE_STORE} --yes

Above command may take some time to create the required infrastructure resources on AWS. Execute the validate command to check its status and wait until the cluster becomes ready

$kops validate cluster --state=${KOPS_STATE_STORE} --name=${KOPS_CLUSTER_NAME}

Execute the below command to find the Kubernetes master hostname using kubectl

$kubectl cluster-info

To connect to the master and check the connection

$ssh -i ~/.ssh/id_rsa [email protected]

Destroy the kubernetes cluster using below command

$kops delete cluster --state=${KOPS_STATE_STORE} --name=${KOPS_CLUSTER_NAME} --yes

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kubernetes's Introduction

Kubernetes

Table of Contents

Installing Kubernetes on AWS Using Kops

One Linux/Ubuntu Virtual Machine is Required (Our Example is Based on AWS Linux)

Install kops by following its official installation guide.

Checking kops version.

Install kubectl by following its official installation guide

Checking kubectl version.

Create an AWS S3 bucket for kops to persist its state.

Create domain from free websites dot.tk

Provide a name for the Kubernetes cluster and set the S3 bucket URL in the following environment variables.

Create a ssh key pair before run the create cluster command this is used in

kops create cluster help command to find additional parameters.

Create a Kubernetes cluster definition using kops by providing the required fields.

If it show any ssh required after running above command

Review the Kubernetes cluster definition by executing the below command

Now create the Kubernetes cluster on AWS by executing kops update command

Above command may take some time to create the required infrastructure resources on AWS. Execute the validate command to check its status and wait until the cluster becomes ready

Execute the below command to find the Kubernetes master hostname using kubectl

To connect to the master and check the connection

Destroy the kubernetes cluster using below command

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