AWS EC2 Start Stop Lambda

aws_ec2_start_stop.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Sid": "VisualEditor0",
            "Effect": "Allow",
            "Action": [
                "ec2:Start*",
                "ec2:Stop*",
                "ec2:DescribeInstanceStatus"
            ],
            "Resource": "*"
        },
        {
            "Sid": "VisualEditor1",
            "Effect": "Allow",
            "Action": [
                "logs:CreateLogStream",
                "logs:CreateLogGroup",
                "logs:PutLogEvents"
            ],
            "Resource": "arn:aws:logs:*:*:*"
        }
    ]
}

cron_syntax.txt

56 3 ? * MON-SAT *

ec2_start.py

import boto3
region = 'us-east-1'
instances = ['i-001e2d04e37ccde3b']
ec2 = boto3.client('ec2', region_name=region)

def lambda_handler(event, context):
    print('Starting instances')
    ec2.start_instances(InstanceIds=instances)

ec2_stop.py

import boto3
region = 'us-east-1'
instances = ['i-001e2d04e37ccde3b']
ec2 = boto3.client('ec2', region_name=region)

def lambda_handler(event, context):
    print('Stopping instances')
    ec2.stop_instances(InstanceIds=instances)