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AWS Load Testing Infrastructure Automation

This Python script automates the deployment and management of an AWS infrastructure designed for load testing. It provisions EC2 instances, sets up auto-scaling, configures load balancers, and implements CloudWatch alarms for scaling decisions based on CPU utilization.

Prerequisites

  • AWS account with proper IAM permissions to create EC2 instances, security groups, auto-scaling groups, load balancers, and CloudWatch alarms.
  • Python 3.x installed.
  • Boto3 library installed. You can install it using pip install boto3.
  • Requests library installed. You can install it using pip install requests.
  • AWS CLI configured with access key, secret key, and default region.

Setup Instructions

  1. AWS Credentials: Ensure that your AWS credentials are set up in the ~/.aws/credentials file or configured through the AWS CLI using aws configure.

  2. IAM Role: The script expects an IAM role with the necessary permissions attached. The role should have policies that allow EC2, AutoScaling, ELB, and CloudWatch operations.

  3. Clone Repository: Download the Python script to your local machine or a virtual environment where you plan to run the script.

  4. Credentials File: Create a credentials.py file in the same directory as the script with your application's USERNAME and PASSWORD variables:

    USERNAME = 'your_username'
PASSWORD = 'your_password'

  5. Security Groups: Uncomment the create_sec_groups function calls in the if __name__ == "__main__": block to set up initial security groups before running the full script.

  6. Customization: Modify the constants at the top of the script to match your desired AWS region, instance types, key pair name, and AMI IDs.

Usage

Run the script with the following command:

python script_name.py

The script will perform the following actions:

  • Create security groups for load generator and web service instances.
  • Launch a load generator EC2 instance.
  • Configure an auto-scaling group and related components.
  • Authenticate with the load generator's web service.
  • Start a load test and retrieve the test ID from the load generator.

Components Created

  • EC2 Instances: For load generation and web service simulation.
  • Security Groups: With rules allowing HTTP traffic.
  • Auto-Scaling Group: To automatically scale the number of instances.
  • Load Balancer: To distribute incoming traffic across multiple instances.
  • CloudWatch Alarms: To trigger scaling actions based on CPU utilization.

Caution

Running this script will provision AWS resources which may incur costs. Be sure to terminate or delete resources after use to avoid unnecessary charges.