Retrieving public dns of EC2 instance with BOTO3

Question

I\'m using ipython to get an understanding of Boto3 and interacting with EC2 instances. Here is the code I\'m using to create an instance:

import boto3

ec2 = bo         


        

Answer 1

Here my wrapper:

import boto3
from boto3.session import Session

def credentials():
    """Credentials:"""
    session = Session(aws_access_key_id= 'XXXXXXXXX',
                      aws_secret_access_key= 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx')
    ec2 = boto3.resource('ec2', region_name='us-east-2')
    return ec2

def get_public_dns(instance_id):
    """having the instance_id, gives you the public DNS"""
    ec2 = credentials()
    instance = ec2.Instance(instance_id)
    instancePublicDNS = managerInstance.public_dns_name
    return instancePublicDNS

Then you just need to use your instance_id to get public id of any of your active ec2:

dns = get_public_dns(instance_id)

Remember to change "region_name" to your zone and add your "aws_access_key_id" and "aws_secret_access_key"