Launching EC2 Instance - Using Python inside lambda function.

This POST discuss about launching EC2 instance in AWS using python code in lambda.

all the code written in Italic

Written using "anaconda and Jupyter Notebook"

Steps for Writing python code for launching AWS instance.

import json

import boto3

def lambda_handler(event, context):

    myec2 = boto3.resource(

        service_name = "ec2",

        aws_access_key_id = "",

        aws_secret_access_key = "",

        region_name = "ap-south-1",

        verify = False

        )

    myos = myec2.create_instances(

        ImageId= "ami-0cc9838aa7ab1dce7", 

        InstanceType= "t2.micro",

        MaxCount= 1,

        MinCount= 1

        ) 

    print(myos[0].id)

        

    # TODO implement

    return {

        'statusCode': 200,

        'body': json.dumps('one ec2 created in ap-south-1!')

    }

After this create API Gateway - note the region

create Api => REST API => Build => new api => "api name" (EC2)=> Create api.

Resource /    "launch" and method "Get" => integration = Lambda and chose the lambda function.

Create SNS, create a topic and configure the subscription to that topic. eg- like mail ..

import boto3

mysns = boto3.client("sns")

mysns.publish(

  TopicArn='arn:aws:sns:us-east-1:339713094090:Testing'

  Message='I m body ec2 instance launched'

  Subject="hi ec2 launched'

)