Reboot an AWS EC2 Instance (Python)

- Reading time: ~1 minute 

from __future__ import print_function
import sys
import boto3
from botocore.exceptions import ClientError

boto3.setup_default_session(profile_name='default')

instance_id = 'i-094cf9bbbea2bdfbd' #sys.argv[2]
#action = sys.argv[1].upper()

ec2 = boto3.client('ec2')

# Do a dryrun first to verify permissions
try:
    ec2.start_instances(InstanceIds=[instance_id], DryRun=True)
except ClientError as e:
    if 'DryRunOperation' not in str(e):
        raise

# Dry run succeeded, run start_instances without dryrun
try:
    response = ec2.start_instances(InstanceIds=[instance_id], DryRun=False)
    print(response)
except ClientError as e:
    print(e)