How to launch EC2 instance using AWS CLI
AWS CLI is a command-line interface and it can be downloaded using the below link:
https://awscli.amazonaws.com/AWSCLIV2.msi
Once the download is finished install it.
To check whether the AWS CLI has been successfully installed or not use the below command.
Now to login to AWS using CLI first we need to create an IAM user, create the access key, and attach the policy to the newly created IAM user.
Now we have both the secret key and access key which is required to configure AWS CLI.
To launch the EC2 instance we require :
- AMI which is known as image id
- instance type
- subnet id
- security group
- key-pair
- ebs storage (optional)
- count (no of instances)
We need an image id which we can get from AWS Console
we can get instance types using the aws ec2 describe-instance-types command
now we need a subnet so for that the command is aws ec2 describe-subnets
now Creating Security Group using aws ec2 create-security-group — group-name clisecurity — description “Security group created using cli”
We require key pair to launch the instance so creating key pair using AWS CLI
aws ec2 create-key-pair — key-name clikey
Now we are all set to launch EC2 instance
aws ec2 run-instances — image-id ami-09a7bbd08886aafdf — instance-type t2.micro — count 1 — subnet-id subnet-a0646dc8 — security-group-ids sg-01cb51cf6a7ce7db2 — key-name clikey
To create EBS volume using AWS CLI we have to use the given command:
aws ec2 create-volume — volume-type gp2 — availability-zone ap-south-1a — size 2
Note that EBS volume is a zonal service so we need to create the EBS volume in the same availability zone in which our instance has been launched.
As we are having EBS Volume as well as Instance, So now we can attach this newly created EBS volume to our instance by using the given command
aws ec2 attach-volume — volume-id vol-01215af9f37ce5cb7 — instance-id i-0fc2edf5be515f4cf — device /dev/sdf
So, this way we can create any number of Ec2 instances as per the requirement.
