create folder inside S3 bucket using Cloudformation

Question

I\'m able to create an S3 bucket using cloudformation but would like to create a folder inside an S3 bucket..like

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Answer 1

I ended up with a small python script. It should be run manually, but it does the the sync automatically. It's for lazy people who don't want to create a Lambda-Backed Custom Resource.

import subprocess
import json

STACK_NAME = ...
S3_RESOURCE = 
LOCAL_DIR = 

res = subprocess.run(
    ['aws', 'cloudformation', 'describe-stack-resource', '--stack-name', STACK_NAME, '--logical-resource-id', S3_RESOURCE],
    capture_output=True,
)
out = res.stdout.decode('utf-8')
resource_details = json.loads(out)
resource_id = resource_details['StackResourceDetail']['PhysicalResourceId']

res = subprocess.run(
    ['aws', 's3', 'sync', LOCAL_DIR, f's3://{resource_id}/', '--acl', 'public-read']
)