How to check application runs in AWS EC2 instance

Question

How can I check which platform my app runs, AWS EC2 instance, Azure Role instance and non-cloud system? now I do that like this:

if(isAzure())
{
    //run in         


        

Answer 1

I think your original idea is pretty good, but no need to make the web request. Simply try to see if the name resolves (in python):

def is_ec2():
    import socket
    try:
        socket.gethostbyname('instance-data.ec2.internal.')
        return True
    except socket.gaierror:
        return False