How to install kubernetes on AWS using KOPS

Filed under: Kubernetes — Tags: aws, devops, install, kops, kubernetes — shaik zillani @ 10:26 am

In this blog post, I will demonstrate how to install kubernetes on aws cloud using kops tool.

Step-1 Create hosted zone

Create aws free tier account
Login to aws web console
Services > Route53 -> DNS Management -> Create hosted zone
copy the nameservers

Step-2 Get a domain/subdomain

Create domain on freenom.com
Add the AWS nameservers
Create s3 bucket

Step-3 IAM

on aws web console > services > IAM
users > add user
Access type > check the following
– programmatic access
– aws management console access
next
Create group > group-name: admin (select adminstrator access)
next > create user
download csv (credentials.csv)

Step-4 Install & configure aws

installing aws: http://docs.aws.amazon.com/cli/latest/userguide/installing.html
aws configure & provide from the credentials.csv
region can be of your choice

Example:


~ $cat credentials.csv

User name,Password,Access key ID,Secret access key,Console login link
test-user,5f9EAAAAH*ZG,AKIAJAAAAM4RKQZBWNQ,dAcPTlq6dAAAAAAAy5+H53PCM4F,https://AAAAAAA.signin.aws.amazon.com/console

~ $aws configure

AWS Access Key ID [****************BWNQ]: AKIAJAAAAM4RKQZBWNQ
AWS Secret Access Key [****************CM4F]: dAcPTlq6dAAAAAAAy5+H53PCM4F
Default region name [us-west-2]:
Default output format [None]:

Step-5 Install kops

Install kops on your system, click here for installation guide

Step-6 Create cluster & Update

Create

syntax:


kops create cluster --name=&amp;lt;domain name&amp;gt; --state=&amp;lt;s3-url&amp;gt; --zones=&amp;lt;aws-zone&amp;gt; --node-count=2 --node-size=t2.micro --master-size=t2.micro --dns-zone=&amp;lt;domain name&amp;gt;

in my case:


kops create cluster --name=kops.cf --state=s3://kops-state-s3 --zones=ap-south-1a --node-count=2 --node-size=t2.micro --master-size=t2.micro --dns-zone=kops.cf

Update:

syntax:

kops update cluster <domain-name> –state=<s3-url> –yes

in my case:

kops update cluster kops.cf --state=s3://kops-state-s3 --yes

If you want to delete the cluster anytime you can use the following command,


kops delete cluster --name=kops.cf --state=s3://kops-state-s3 --yes

Step-7 Install kubectl

Kubectl is a command line tool that helps you deploy & manage applications on kubernetes. Installation link here

Step-8 Wait & Verify

Wait for DNS A records to appear

~ $kubectl get nodes
NAME STATUS AGE VERSION
ip-172-20-35-98.ap-south-1.compute.internal Ready,node 36m v1.6.2
ip-172-20-50-104.ap-south-1.compute.internal Ready,master 39m v1.6.2
ip-172-20-54-228.ap-south-1.compute.internal Ready,node 36m v1.6.2

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