AWS

Build, Zip, Update a .NET Core 3.1 AWS Lambda, and Run a Test, with a Single Command

I’ve been working on a small AWS Lambda that has needed many iterations, I quickly got tired of building it, zipping by hand from Windows UI, uploading from the AWS console UI, and executing a test from there. Here is a simple batch file that does it all.

Aug 27, 2021 # AWS, AWS Lambda

Using Intrinsic Functions with Step Functions to Clean Json Strings

Working with Json directly in C# has always been a problem, but as Json becomes more common the problems mount. I was using AWS Step Functions recently and wanted to pass the Json string output from a Lambda running .NET Core 3.1. As with all things C# Json string related, it was not easy.

Aug 25, 2021 # AWS, Step Functions, json, CSharp

Executing an AWS .NET Lambda at an Exact Time with Step Functions

AWS Step Functions are a very easy way to orchestrate many things. But they can also be used to run a Lambda at an exact time (down to a tenth of a second, or less), up to a year in the future.

Jun 23, 2021 # AWS, Lambda, dotNet, Step Functions

GitHub Actions with .NET, Part 5 - Build a .NET Application and Upload to S3

In the previous post I used GitHub Actions and Pulumi to create an S3 bucket. This post shows how to build a .Net 5 application and upload the zip to the S3 bucket.

Jun 10, 2021 # dotNet, GitHub Actions, AWS, S3

GitHub Actions with .NET, Part 4 - Building an S3 bucket with Pulumi

With GitHub Actions, C#, and Pulumi it is easy to create an AWS S3 bucket, here’s how.

Jun 8, 2021 # dotNet, GitHub Actions, AWS, Pulumi, S3

C# and AWS Lambdas, Part 8 - .NET 6, inside a Container, inside a Lambda

After playing with .NET 5 libraries and Web API applications inside Lambda containers I wanted to see if I could get a .NET 6 library running too….I did, read on.

Mar 26, 2021 # dotNet 6, AWS, Docker, Container, AWS Lambda

C# and AWS Lambdas, Part 7 – .NET 5 Web API inside a Container inside a Lambda, with API Gateway in front

In my previous post I showed how to build a .NET 5 library inside a docker image and deploy it to an AWS Lambda. This post is a small extension on that. I’m going to build a .NET 5 Web API application, turn it into a docker image, deploy it to an AWS Lambda, and connect an API Gateway to the Lambda to call the controller inside the application, inside the container, inside the Lambda!

Mar 25, 2021 # AWS, Docker, Container, dotNET 5, Lambda

C# and AWS Lambdas, Part 6 – .NET 5 inside a Container inside a Lambda

A few months ago AWS released a feature allowing Lambdas to run container images, for larger applications this is easier to work with than a zip file or set of layers, it also lets you move your already containerized apps to Lambda with a small effort. This post shows how to get .NET 5 “Hello World” application running in this manner.

Mar 17, 2021 # AWS, Container, Docker, dotNET 5, Lambda

C# and AWS Lambdas, Part 5 – Updating the Zip in S3 and Updating the Running Lambda, with Pulumi IaC

This post pulls together a few threads I’ve been working on - the creation of Lambda to run .NET, storing the zip in S3, and updating the .NET Lambda when the zip in S3 is updated. This one took quite a while to put together - the permissions, roles, and policies were not obvious and I hope it will be of help to you.

Mar 10, 2021 # dotNet Core 3.1, AWS, dotNet, IaC, AWS Lambda, Pulumi, S3

C# and AWS Lambdas, Part 4 – Storing the Zip in S3, Setup with Pulumi IaC

In the previous post, I showed how to use Pulumi to create a Lambda, API gateway and upload a zip of Web API application directly to the Lambda.

In the post I’m going to use S3 to store the zip of a simple .NET application (not a Web API app) and point the Lambda at it, bringing all the resources up using Pulumi. One drawback of using S3 to store the zip for a Lambda is that when you update the zip in S3, AWS doesn’t deploy the new zip to the Lambda, but I will show a way of handling that in the next blog post.

Mar 3, 2021 # dotNet Core 3.1, AWS, dotNet, IaC, AWS Lambda, Pulumi