As the owner of this project, I'm excited to share with you a detailed guide to AWS Lambda, a powerful serverless compute service. Whether you're a seasoned developer or just starting out, this guide will walk you through the ins and outs of Lambda and help you unlock its full potential.
Introduction to AWS Lambda
AWS Lambda is a serverless compute service that allows you to run code without provisioning or managing servers. With Lambda, you can write and deploy code in a variety of programming languages, including Node.js, Python, Java, and more. Lambda takes care of the underlying infrastructure, so you can focus on writing code and delivering value to your users.
What is Lambda Used For?
Lambda is used for a wide range of applications, including:
- Real-time data processing and analytics
- Serverless APIs and web applications
- Event-driven architectures and microservices
- Machine learning and AI
- IoT data processing and device management
*How to Create AWS Lambda *
- Login to your AWS Management Console and search for lambda
- Click on create
- Select author from scratch
- Name the function
- Under Runtime, select python 3.12
- Architecture, select ×86.64
- Click on additional configuration drop-down
- Click on enable function URL
- Under AUTH type, I enabled none for this project
- Then click on create
*Let's Create an EC2 Instance for this Project *
- Login to your account
- Search EC2 and click on it
- Click on launch instance
- Name your instance
- I choose Ubuntu as my image
- Select or create a key pair
- Click on network settings and enable
- Click on create
- Click on the EC2 instance you created
- Scroll down and click on Storage
- You will see the EC2 volume created along side with the EC2. Copy it because we will be using it.
Let's Create a Snapshot
A snapshot is like a backups of resources, allowing you to recover resources in case of data loss or corruption.
- Go to your EC2 dashboard
- Click on snapshot
- Click on create a snapshot
- Select volume
- Put your EC2 volume you copied
- Add a description
- Click create
How to Use AWS Lambda Function
- If you have a GitHub account, clone or fork the repository aws-devops-zero-to-hero day 18
- After cloning of forking, click on ebs_stale
- Copy the entire code (but if you already have your own lambda functions code, you can use it)
- Go back to your Lambda
- Scroll down to where you see code (under lambda functions)
- Remove all the code, and paste the one you copied from GitHub
- Click on the deploy button above
- Then click on the test button above
- Name the event as test (or anything)
- Click on save
- Then click on the test button
Note: In case it fails, click on configuration above
- Scroll down to timeout, and increase the min to 10sec or above.
- Then save
Let's Attach Policy to the Snapshot
- Still on your AWS Lambda Function page
- Click on configuration
- Click on permissions by your left
- Click on Role name link (open it on a new tab)
- Click on add permission
- Click on attach policy
- Click on create policy by your right
- Select EC2
- Search for snapshot
- Select delete snapshot, and describe snapshot
- Click on resources drop-down and select all resources
- Click on next
- Name your policy
- Scroll down and click on create
- After creating the policy, click on roles by your left
- Click on add permission
- Search for the policy you created
- Click on it, and click on add permission
- Go back to your Lambda
- Click on code
- Click on test
Final Conclusion:
In this comprehensive guide, we've explored the world of AWS Lambda and snapshots. We've covered the basics of Lambda, its uses, and how to create and deploy Lambda functions. Additionally, we've delved into the concept of snapshots, how to create them, and how to develop a snapshot policy.
By mastering AWS Lambda and snapshots, developers can build scalable, efficient, and reliable applications that leverage the power of serverless computing. Whether you're building real-time data processing pipelines, serverless APIs, or machine learning models, this guide has provided you with the knowledge and skills to succeed.
With this comprehensive guide, you're now equipped to:
- Design and deploy AWS Lambda functions for various use cases
- Create and manage snapshots for data protection and recovery
- Develop a snapshot policy to ensure data integrity and compliance
By applying the concepts and techniques outlined in this guide, you'll be well on your way to unlocking the full potential of AWS Lambda and snapshots for your applications.
Top comments (0)