Create EC2 instance from a simple python script

This script also helps to you set your own private ip and ec2 instance hostname and you can set your own custom environment variables on initial start of the machine.

import boto3, botocore

client = boto3.client(‘ec2’, region_name=’ap-south-1')

AMI = ‘ami-999999999999’ 
az_zone = ‘ap-south-1a’
InstanceType = “t3a.small”
SubnetId = ‘subnet-999999999999’
SecurityGroupId = ‘sg-999999999999’
IAMProfile = ‘arn:aws:iam::999999999999:instance-profile/ROLE_NAME’

SSH_KEY_FILE_NAME = ‘test’

def do(nodeName, environment, ip):
 intialCommands = “””#!/bin/bash
 sudo hostnamectl set-hostname “””+nodeName+”””
 echo export “environment=’”””+environment+”””’” >> /etc/environment
 “””

try:
 response = client.run_instances(
 ImageId=AMI,
 InstanceType=InstanceType,
 KeyName=SSH_KEY_FILE_NAME,
 MaxCount=1,
 MinCount=1,
 Monitoring={ ‘Enabled’: True },
 Placement={ ‘AvailabilityZone’: az_zone, ‘Tenancy’: ‘default’ },
 SecurityGroupIds=[ SecurityGroupId ],
 SubnetId= SubnetId,
 UserData= intialCommands,
 IamInstanceProfile={ ‘Arn’: IAMProfile },
 InstanceInitiatedShutdownBehavior=’stop’,
 PrivateIpAddress=ip,
 TagSpecifications=[
 {
 ‘ResourceType’: ‘instance’,
 ‘Tags’: [
 { ‘Key’: ‘Environment’, ‘Value’: environment },
 { ‘Key’: ‘Name’, ‘Value’: nodeName }
 ]
 }, {
 ‘ResourceType’: ‘volume’,
 ‘Tags’: [
 { ‘Key’: ‘Environment’, ‘Value’: environment },
 { ‘Key’: ‘Name’, ‘Value’: nodeName }
 ]
 }
 ]
 )
 print(response)
 return True
 except botocore.exceptions.ClientError as e:
 print(e)
 return False

do(‘node-n’, ‘staging’, ‘10.0.0.1’)

Source:  https://medium.com/@rahul.juneja3/create-a-ec2-instance-from-python-script-f7a7779eaf54