domain-expiration-checker's Introduction

Domain Expiration Checker

Overview

The Domain Expiration Checker is a lightweight application written in Go designed to monitor the expiration dates of specified domain names. The application sends the information to Datadog for monitoring and alerting.

Environment Variables

To configure the application, the following environment variables need to be set:

DD_SITE: The Datadog site URL. Example: "datadoghq.com"
DD_API_KEY: Your Datadog API key for authentication and data submission.
DATADOG_ENABLED: Set to "true" to enable Datadog integration. Default: false
DOMAINS: A comma-separated list of domain names to monitor. Example: "example1.com,example2.com,example3.com"
ALERT_THRESHOLD_DAYS: A comma-separated list of days to alert before domain expires. Default: "30,60,90"

Usage

Setup Environment Variables: Set the required environment variables in your Kubernetes CronJob or deployment configuration.

CronJob Example:

apiVersion: batch/v1
kind: CronJob
metadata:
  name: domain-expiration-checker
spec:
  schedule: "1 1 * * *"
  jobTemplate:
    spec:
      template:
        spec:
          containers:
          - name: domain-expiration-checker
            image: jatm80/domain-expiration-checker:1
            imagePullPolicy: IfNotPresent
            env:
            - name: DD_SITE
              value: "datadoghq.com"
            - name: DD_API_KEY
              value: "your-api-key"
            - name: DATADOG
              value: "true"
            - name: DOMAINS
              value: "example1.com,example2.com,example3.com"
          restartPolicy: OnFailure

Running: The application runs according to the defined schedule, checking domain expirations and sending metrics to Datadog if enabled.

Monitoring and Alerts

Ensure that your Datadog integration is properly configured to receive and display metrics from the application. You can set up custom dashboards and alerts based on the expiration dates of the monitored domains.