execute-script-from-s3-on-ec2.py

# Read more about setting it up
# https://medium.com/@ljmocic/running-a-script-from-s3-on-ec2-with-7-lines-of-code-59806c07d300

import boto3

REGION = 'us-east-1'
AMI = 'ami-00b94673edfccb7ca'
INSTANCE_TYPE = 'm3.medium'

BUCKET = 'script-bucket'
SCRIPT_PATH = 'script.sh'

EC2 = boto3.client('ec2', region_name=REGION)
S3 = boto3.client('s3', region_name=REGION)

S3.download_file(BUCKET, SCRIPT_PATH, SCRIPT_PATH)
with open(SCRIPT_PATH, 'r') as f:
    script = '\n'.join(f)
    EC2.run_instances(
        ImageId=AMI,
        InstanceType=INSTANCE_TYPE,
        MinCount=1,
        MaxCount=1,
        InstanceInitiatedShutdownBehavior='terminate',
        UserData=script
    )