AWS CLI (Source: Google)

Launch AWS EC2 Instance using AWS CLI

TASK Description -

1. Create a key pair.
2. Create a security group.
3. Launch an instance using the above created key pair and security group.
4. Create an EBS volume of 1 GB.
5. The final step is to attach the above created EBS volume to the instance you created in the previous steps.

What is AWS CLI ?

The AWS Command Line Interface (CLI) is a unified tool to manage your AWS services. With just one tool to download and configure, you can control multiple AWS services from the command line and automate them through scripts. (Source: aws.amazon.com)

Install AWS CLI

So, first we need to install AWS CLI on our OS from where we’re going to run commands.

Go to the below link and Download AWS CLI according to your OS.

Installing, updating, and uninstalling the AWS CLI

After downloading the AWS CLI, Install it.

Now, open a fresh command prompt or Terminal and run below command.

aws --version

If above command run successfully, then your AWS CLI is installed successfully.

Configure AWS IAM Account with CLI

So, for using AWS services in CLI first we’ve to login (configure) inside AWS CLI. and for that we need to have a IAM account in AWS Account.

aws configure

Run above command to configure AWS CLI.

This command will ask you for Access key ID, Secret Access key, Region name, and output format (by default — json). provide these details and your CLI setup will be completed.

So, Lets Get Started

Create Key Pair

First we’ve to create key for Instance to login in it.

A key pair, consisting of a private key and a public key, it is a pair of security credentials.

#### aws ec2 create-key-pair --key-name <key_name>  ####
aws ec2 create-key-pair --key-name task3

copy selected area.

Copy the selected area of output in a file and save it in a file with the same name you have given to key. And extension of file should be ‘.pem’ or ‘.ppk’, For example - “key_name.pem” or “key_name.ppk”.

Key created successfully

Create Security Group

Now, lets create Security Group for Instance. and add Ingress rule for SSH on port no. 22, to login into instance.

aws ec2 create-security-group --group-name <security_group_name> --description <"Description_for_Security_group">

aws ec2 authorize-security-group-ingress --group-id <security_group_id>  --protocol tcp  --port 22  --cidr 0.0.0.0/0

creating security group and adding ingress rule to allow SSH protocol

Security Group created successfully

Launch EC2 Instance

Now, our key and security group is created successfully, let’s use them and launch instance on AWS,

#### 
aws ec2 run-instance --image-id <image_id(ami)> --instance-type <instance_type> --key-name <key_name> --security-group-ids <security_group_id>  --count <count> 
####
aws ec2 run-instances --image-id ami-068d43a544160b7ef    --instance-type t2.micro --key-name task3 --security-group-ids sg-0f01853a82ba02d2e   --count 1

Launching EC2 instance

Instance Launched Successfully

Create EBS volume

Now we have to create a EBS (Elastic Block Store) volume of size 1GB, and attach to EC2 instance.

Elastic Block Storage (EBS) is easy to use, high performance block storage service designed to use with Elastic Compute Cloud (EC2) for both throughput and transaction intensive workloads at any scale.

#### 
Here we have to provide same availability zone in which your instance is launched otherwise we will be not able to attach volume to instance
####
aws ec2 create-volume --availability-zone ap-south-1b --volume-type gp2  --size 1 --tag-specifications ResourceType=volume,Tags=[{Key=Name,Value=EBS_for_task_3}]

creating EBS volume

EBS volume created successfully…but it is not attached to any instance yet i.e. why it is showing State=”available”

Attach EBS Volume to Instance

Now we have to attach the this volume to our instance which we created above.

aws ec2 attach-volume --device /dev/sdb --instance-id i-00af482c76e08e638 --volume-id vol-0ee4e1f77cf2f3849

EBS volume is attached to the instance…we can see in “Attachment information”.

Here we can see our newly created volume of 1 GB is attached to Instance

And thus, all the objectives of the task are successfully completed.

Thank you!!! for Reading.