Stop all EC2 instances with the 'Stoppable': 'true' tag

stop_ec2.py

#!/usr/bin/env python3

import boto3

s = boto3.Session(profile_name='profile')
ec2 = s.resource('ec2')

instances_to_stop_filter = [
    { 'Name':'tag:Stoppable', 'Values': ['true'] },
    { 'Name':'instance-state-name', 'Values': ['running'] }
]

instances = ec2.instances.filter(Filters=instances_to_stop_filter)
print('stopping instances')
for inst in instances:
    tags = {tag['Key']: tag['Value'] for tag in inst.tags}
    print('stopping', inst.id, tags.get('Name', '<unknown>'))
ec2.instances.filter(InstanceIds=[i.id for i in instances]).stop()