Scripts to start/stop EC2. Requires 'AmazonEC2FullAccess' permission.

start_ec2.py

import json
import boto3

def lambda_handler(event, context):
    instances = ['INSTANCE_ID']
    ec2 = boto3.client('ec2', region_name='us-east-1')
    ec2.start_instances(InstanceIds=instances)
    return {
        'statusCode': 200,
        'body': json.dumps('Started instance ' + instances[0])
    }

stop_ec2.py

import json
import boto3

def lambda_handler(event, context):
    instances = ['INSTANCE_ID']
    ec2 = boto3.client('ec2', region_name='us-east-1')
    ec2.stop_instances(InstanceIds=instances)
    return {
        'statusCode': 200,
        'body': json.dumps('Stopped instance ' + instances[0])
    }