Building .NET microservices is just half the battle — the real challenge often lies in deploying them efficiently and reliably. Unlike monolithic apps, microservices need to be deployed individually, often across multiple environments and machines.

Step-by-Step Example: Deploy .NET Microservices with Docker and Kubernetes

We’ll deploy two simple microservices:

  • ProductService
  • OrderService

Create Dockerfiles

ProductService/Dockerfile

# Use official .NET 8 SDK image for build
FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
WORKDIR /src
COPY *.csproj ./
RUN dotnet restore
COPY . ./
RUN dotnet publish -c Release -o /app/publish
# Runtime image
FROM mcr.microsoft.com/dotnet/aspnet:8.0
WORKDIR /app
COPY --from=build /app/publish .
ENTRYPOINT ["dotnet", "ProductService.dll"]
docker build -t yourrepo/productservice:1.0 -f ProductService/Dockerfile .
docker build -t yourrepo/orderservice:1.0 -f OrderService/Dockerfile .

Write Kubernetes Deployment YAMLs

Productservice-deployment.yaml

apiVersion: apps/v1
kind: Deployment
metadata: name: productservice
spec: replicas: 3 selector: matchLabels: app: productservice template: metadata: labels: app: productservice spec: containers: - name: productservice image: yourrepo/productservice:1.0 ports: - containerPort: 80
apiVersion: v1
kind: Service
metadata: name: productservice
spec: selector: app: productservice ports: - protocol: TCP port: 80 targetPort: 80 type: ClusterIP

Deploy to Kubernetes Cluster

kubectl apply -f productservice-deployment.yaml
kubectl apply -f productservice-service.yaml
kubectl apply -f orderservice-deployment.yaml
kubectl apply -f orderservice-service.yaml
kubectl get pods
kubectl get services

Conclusion

Deploying .NET microservices involves multiple layers from containerization, orchestration, to automation. Docker and Kubernetes together provide a powerful, scalable foundation. Hire .NET developers that follow these steps and best practices, to confidently deploy your microservices in production environments.