AWS Lambda Cron Jobs Made Easy: A Step-by-Step Guide

Image Source: incentius.com Are you looking to automate repetitive tasks in your software company? Are you struggling with managing cron jobs on the cloud platform? Look no further! AWS Lambda Cron Jobs is the solution...

AWS Lambda Cron: AWS lambda logo Image Source: incentius.com

Are you looking to automate repetitive tasks in your software company? Are you struggling with managing cron jobs on the cloud platform? Look no further! AWS Lambda Cron Jobs is the solution you need. In this comprehensive guide, we will walk you through the steps to schedule and run AWS Lambda Cron Jobs effortlessly.

What are Cron Jobs?

Image Source: stevenmortimer.com

Cron is a utility that allows users to schedule repetitive tasks at specific time frames. It is commonly used for system maintenance, scheduled backups, and security checks. When these Linux cron jobs are run on Amazon's Lambda server, they become AWS Cron Jobs.

Introducing Amazon Lambda

AWS Lambda is a serverless computing service offered by Amazon Web Services. It provides a fully managed infrastructure for running code without the need to provision or manage servers. With Lambda, you can focus on your core business and product planning, while AWS handles the operational aspects.

Benefits of AWS Lambda

  1. Reduced Expenses: Pay only for the resources used by your functions and any network traffic. No need to worry about unused server minutes.
  2. Variety of Use Cases: AWS Lambda caters to a wide range of use cases, from daily tasks to automated chatbots.
  3. Fully Managed Infrastructure: AWS takes care of all the underlying infrastructure, including OS management and upgrades.
  4. Automatic Scalability: Lambda functions scale automatically based on the incoming requests, ensuring seamless performance.
  5. Integration with Products: AWS Lambda integrates seamlessly with other AWS services, allowing you to create powerful applications.

How to Schedule AWS Lambda Cron Jobs

Prerequisites:

  • S3 Bucket: You'll need an S3 bucket to store the deployment package, which is a .zip file containing your lambda function.
  • IAM Role: Manage privileges for the lambda functions using IAM, including access to CloudWatch Logs.
  • CloudWatch Events Rule: Define the creation of an event using CloudWatch Events expressions.
  • Lambda Permission: Explicitly provide permissions for invoking the lambda functions.

Note: Amazon Web Services usually takes care of all these aspects, but we'll be using the default values for this guide.

Step 1: Creating the Lambda Function

To create a lambda function, follow these steps:

  1. Install serverless and Serverless CLI and configure your AWS credentials.
  2. Create a Node.js service using the serverless command.
  3. Replace the contents of the handler.js and serverless.yml files with the provided code in the original article.

Step 2: Deploy the Serverless Package

Use the serverless deploy command to deploy the AWS Lambda Cron job. Serverless takes care of managing permissions, IAM roles, and packaging the code for deployment.

Step 3: Verify the Deployment

Verify that the AWS Lambda Cron job is running correctly by using the serverless logs command. You should see the logs indicating the successful execution of the lambda function at the scheduled intervals.

Steps to Shut Down the AWS Lambda Cron

To shut down an AWS Lambda Cron job, change the enabled flag to false and rerun the serverless deploy command. Alternatively, you can use the serverless remove command to completely remove the stack.

Conclusion

In conclusion, AWS Lambda Cron Jobs provide an efficient solution for automating tasks on the cloud platform. By following the step-by-step guide in this article, you can easily schedule and run your own cron jobs on AWS Lambda. Embrace the power of serverless computing and simplify your operations.

Share your experience of learning about AWS Lambda Cron Jobs in the comments section below.

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