how to check if a python script is running in an ec2?

0

are there any environment variables that i can check if exists , while running my python script in an aws ec2 or a sagemaker instance ? something like this ...

import os 

aws_environment = os.environ.get('AWS..') 

gefragt vor 3 Monaten215 Aufrufe
3 Antworten
1

Hello.

How about writing code to get instance metadata?
I tried translating the commands described in the document below into python.
You can check the EC2 instance ID by running the Python below.
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-metadata-v2-how-it-works.html

import requests

def get_ec2_metadata():
    token_url = "http://169.254.169.254/latest/api/token"
    meta_data_instance_id = "http://169.254.169.254/latest/meta-data/instance-id"

    headers = {
        "X-aws-ec2-metadata-token-ttl-seconds": "21600"
    }
    response = requests.put(token_url, headers=headers)
    token = response.text

    headers = {
        "X-aws-ec2-metadata-token": token
    }
    response = requests.get(meta_data_instance_id, headers=headers)
    metadata = response.text

    return metadata

metadata = get_ec2_metadata()
print(metadata)
profile picture
EXPERTE
beantwortet vor 3 Monaten
profile pictureAWS
EXPERTE
überprüft vor 3 Monaten
0

Hi,

Sagemaker API has a specific Python API to retrieve its default environment variables. It's sagemaker.environment_variables.retrieve_default()

See documentation: https://sagemaker.readthedocs.io/en/v2.78.0/api/utility/environment_variables.html

Best,

Didier

profile pictureAWS
EXPERTE
beantwortet vor 3 Monaten
  • thanks, aren't there any env variables that are set in the environment, when a instance spins up in sagemaker , that i can check if exists?

0

You can check for the presence of the instance metadata service as it won't respond it you're not running on EC2:

import requests

try:
    requests.get('http://169.254.169.254/', timeout=2)
except OSError:
    print('Not running on EC2')
else:
    print('Running on EC2')
profile pictureAWS
EXPERTE
beantwortet vor 3 Monaten

Du bist nicht angemeldet. Anmelden um eine Antwort zu veröffentlichen.

Eine gute Antwort beantwortet die Frage klar, gibt konstruktives Feedback und fördert die berufliche Weiterentwicklung des Fragenstellers.

Richtlinien für die Beantwortung von Fragen