ec2_list_instances

Use this tool to list your EC2 instances in AWS using Python and the boto3 library. This script filters instances based on their state (running) and a tag key (my-instance-group-name), then prints their ID, instance type, and private IP address.

import boto3

profile_name = ''
region_name = ''

ec2 = boto3.Session(profile_name=profile_name, region_name=region_name).client('ec2')
instances = ec2.instances.filter(
    Filters=[
        {'Name': 'instance-state-name', 'Values': ['running']},
        {'Name': 'tag-key', 'Values': ['my-instance-group-name']}
    ]
)

for instance in instances:
    print(instance.id, instance.instance_type, instance.private_ip_address)

Explanation

This Python script uses the boto3 library to interact with Amazon Web Services (AWS). It lists EC2 instances based on specified filters. Here's a breakdown:

• boto3: The AWS SDK for Python, allowing you to write Python code that interacts with AWS services like EC2.
• Session: Creates a session to manage AWS credentials and region. profile_name and region_name should be configured in your AWS CLI.
• EC2 Client: Creates an EC2 client object, which allows you to call EC2 APIs.
• Filtering Instances: Filters EC2 instances that are in the 'running' state and have a specific tag key ('my-instance-group-name').
• Looping Through Instances: Iterates through the filtered instances and prints their ID, instance type, and private IP address.

Related Resources

• Boto3 EC2 Documentation
• Amazon EC2
• AWS CLI Configuration