ec2-instance-list.py

import boto3
import json
#from datetime import datetime
from pytz import timezone
import datetime


def lambda_handler():
	session = boto3.session.Session(profile_name='L1BusinessAWS')
	ec2 = session.client('ec2')
	#ec2 = boto3.client('ec2')
	paginator = ec2.get_paginator('describe_instances')
	pages = paginator.paginate()
	for page in pages:
		reservations = page['Reservations']
		instance_list = []
		for reservation in reservations:
			for instances in reservation['Instances']:
				for tag in instances['Tags']:
					if "Name" in tag['Key']:
						instanceName = tag['Value']
				
				instance_public_ip = instances.get('PublicIpAddress')
				if instance_public_ip is None:
					instance_public_ip = 'Not Available'
				
				instance = {
					'InstanceName': instanceName,
					'InstanceId': instances['InstanceId'],
					'InstanceType': instances['InstanceType'],
					'InstanceState': instances['State']['Name'],
					'AvailabilityZone': instances['Placement']['AvailabilityZone'],
					'Volumes': [vol['Ebs']['VolumeId'] for vol in instances['BlockDeviceMappings']],
					'PublicIpAddress' : instance_public_ip,
					'PrivateIpAddress' : instances['PrivateIpAddress'],
					'SecurityGroups' : [sg.get('GroupId') for sg in instances['SecurityGroups']],
					'SubnetId' : instances['SubnetId'],
					'VpcId' : instances['VpcId']
				}
				instance_list.append(instance)

	print(json.dumps(instance_list,sort_keys=True,indent=1,default=default))

def default(obj):
    if isinstance(obj, (datetime.date, datetime.datetime)):
        return obj.isoformat()

if __name__ == '__main__':
	lambda_handler()