How to obtain current instance ID from boto3?

Question

Is there an equivalent of

curl http://169.254.169.254/latest/meta-data/instance-id

with boto3 to obtain the current running instance instance-id in python?

Answer 1

There is no api for it, no. There is InstanceMetadataFetcher, but it is currently only used to fetch IAM roles for authentication.

Any sort of GET should serve you though. Botocore uses the python requests library which is quite nice.

import requests
response = requests.get('http://169.254.169.254/latest/meta-data/instance-id')
instance_id = response.text

Answer 2

In fact, scrap that answer. All you need is ec2-metadata https://github.com/adamchainz/ec2-metadata

pip3 install ec2-metadata

from ec2_metadata import ec2_metadata
print(ec2_metadata.instance_id)