Dotnet Containerization and Garbage Collection

ℹ️ This example was put together on a Mac using a *nix shell scripts and homebrew and may not work in other environments.

Motivation

The intention behind this project is to demonstrate the DATAS memory management optimization in .NET 9 (compared to .NET 8) and how to visualize them using OpenTelemetry.

Setup

Install dependencies

brew install minikube kubectl kustomization k6

Run a local kubernetes cluster

minikube start --extra-config=kubelet.authentication-token-webhook=false --extra-config=kubelet.authorization-mode=AlwaysAllow

Note: To configure shell to use minikube docker environment, run

eval $(minikube -p minikube docker-env)

Build the image

make build

Verify image is available

minikube image ls --format table

Setup test environment

kubectl apply -f ./kubectl/observability

Deploy service and expose endpoint

make serve_dotnet8 # for dotnet 8
make serve_dotnet9 # for dotnet 9

Service is exposed on a random port on localhost. Copy URL and port printed out.

Run Tests

Install k6

brew install k6

Run k6 tests

k6 run k6/test.js -e MAX_USERS=<user count> -e BASE_URL<url copied above>

Access Grafana

make grafana

Login using default user admin with password admin.

Teardown

Reset shell configuration

 eval $(minikube docker-env --unset)