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AWS Lambda vs Kubeless: What are the differences?
What is AWS Lambda? Automatically run code in response to modifications to objects in Amazon S3 buckets, messages in Kinesis streams, or updates in DynamoDB. AWS Lambda is a compute service that runs your code in response to events and automatically manages the underlying compute resources for you. You can use AWS Lambda to extend other AWS services with custom logic, or create your own back-end services that operate at AWS scale, performance, and security.
What is Kubeless? Kubernetes Native Serverless Framework. Kubeless is a Kubernetes native serverless Framework. Kubeless supports both HTTP and event based functions triggers. It has a serverless plugin, a graphical user interface and multiple runtimes, including Python and Node.js.
AWS Lambda and Kubeless can be primarily classified as "Serverless / Task Processing" tools.
Kubeless is an open source tool with 4.82K GitHub stars and 499 GitHub forks. Here's a link to Kubeless's open source repository on GitHub.
When adding a new feature to Checkly rearchitecting some older piece, I tend to pick Heroku for rolling it out. But not always, because sometimes I pick AWS Lambda . The short story:
- Developer Experience trumps everything.
- AWS Lambda is cheap. Up to a limit though. This impact not only your wallet.
- If you need geographic spread, AWS is lonely at the top.
Recently, I was doing a brainstorm at a startup here in Berlin on the future of their infrastructure. They were ready to move on from their initial, almost 100% Ec2 + Chef based setup. Everything was on the table. But we crossed out a lot quite quickly:
- Pure, uncut, self hosted Kubernetes — way too much complexity
- Managed Kubernetes in various flavors — still too much complexity
- Zeit — Maybe, but no Docker support
- Elastic Beanstalk — Maybe, bit old but does the job
- Heroku
- Lambda
It became clear a mix of PaaS and FaaS was the way to go. What a surprise! That is exactly what I use for Checkly! But when do you pick which model?
I chopped that question up into the following categories:
- Developer Experience / DX 🤓
- Ops Experience / OX 🐂 (?)
- Cost 💵
- Lock in 🔐
Read the full post linked below for all details
Pros of AWS Lambda
- No infrastructure126
- Cheap80
- Quick67
- Stateless57
- No deploy, no server, great sleep46
- AWS Lambda went down taking many sites with it9
- Extensive API5
- Event Driven Governance5
- Easy to deploy5
- Auto scale and cost effective4
- VPC Support3
- Integrated with various AWS services1
Pros of Kubeless
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Cons of AWS Lambda
- Cant execute ruby or go5
- Can't execute PHP w/o significant effort0
Cons of Kubeless
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What is AWS Lambda?
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