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The project aimed to automate the provisioning of infrastructure components required for integrating AWS CloudWatch Alarms with the ServiceNow platform to generate alarms when an Ansible playbook execution resulted in an alarm condition. This integration streamlined incident management, allowing for prompt resolution and visibility of issues detected during Ansible playbook executions in AWS, all within the ServiceNow dashboard.
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Key Components
Cloud Development Kit (cdk)
A Cloud Development Kit script creates the necessary AWS resources and components for this integration project, including AWS CloudWatch Alarms, Amazon SNS topics, AWS Lambda functions, and ServiceNow API configurations.
Ansible Playbooks
Ansible playbooks are used to automate various tasks and configurations in AWS resources.
AWS CloudWatch Alarms
AWS CloudWatch Alarms are configured to monitor specific metrics and conditions resulting from the execution of Ansible playbooks.
When an Ansible playbook execution triggers an alarm condition, CloudWatch generates a notification.Amazon SNS (Simple Notification Service)
An SNS topic is created to receives notifications from CloudWatch Alarms.
AWS Lambda Function
A Lambda function is developed and associates with the SNS topic.
This function is responsible for receiving CloudWatch Alarm notifications and processing them.ServiceNow Integration
In ServiceNow, a RESTful API endpoint is created to receive incident data from the Lambda function.
ServiceNow incident templates are designed to accept data related to Ansible playbook executions, including severity, description, and affected AWS resources.
Lambda Function Integration with ServiceNow API
The Lambda function is configured to invoke the ServiceNow API endpoint.
It constructs an HTTP request containing the relevant data extracted from the CloudWatch Alarm notification.
The Lambda function sends this request to the ServiceNow API for incident creation.Incident Logging and Tracking
Upon receiving the data, ServiceNow creates an incident record based on the provided information..
The incident is assigned a priority based on the severity of the Ansible playbook execution issue.
ServiceNow logs all incidents, making them visible on the ServiceNow dashboard.Project Workflow:
Cloud Development Kit (CDK) is executed to provision the required infrastructure components in AWS.Ansible playbooks are executed to automate tasks in AWS resources.The SNS topic triggered the Lambda function.The Lambda function processed the CloudWatch Alarm notification and extracted relevant data.The Lambda function made an authenticated and authorized API request to the ServiceNow endpoint.ServiceNow created an incident record based on the received data.Incidents were tracked, and their details were available on the ServiceNow dashboard for monitoring and resolution.
Benefits
Infrastructure Automation: The Terraform script automated the provisioning of necessary infrastructure, ensuring consistency and reliability.
Real-time incident tracking: Alarms generated from Ansible playbook executions were immediately logged in ServiceNow, ensuring that incidents were promptly addressed.
Visibility: IT teams could view issues detected during Ansible playbook executions alongside other incidents in the ServiceNow dashboard, providing a unified view of incidents.
Automation: The integration automated the incident creation process, reducing manual effort and potential errors.
Improved incident management: With incidents centralized in ServiceNow, teams could follow standardized procedures for resolution and escalation.
Summary:
The integration of CloudWatch Alarms with the ServiceNow API for Ansible playbook executions, with Cloud Development Kit (CDK) handling infrastructure provisioning, provides an efficient and automated way to manage incidents related to AWS resources and Ansible automation tasks. This project enhances incident tracking, visibility, and resolution processes, ultimately contributing to improved operational efficiency and service reliability.