Web API in NET 6 + Docker

Hello!

How are you? I hope all of you are stay safe and having a great day!

If you want to follow this step-by-step. Please install some tools that will be required here.

1. .NET 6: https://dotnet.microsoft.com/download/dotnet/6.0
2. Docker: https://docs.docker.com/get-docker/

Project Preparation

• Create the Web API from template.

dotnet new webapi -o DockerNetExample

• Create the solution to link the project and link the project.

dotnet new sln

dotnet sln add DockerNetExample

• Your project is ready now. :)

Prepare for Dockerfile

• Create your Dockerfile at the root, similar place with the .sln file.

FROM mcr.microsoft.com/dotnet/sdk:6.0-alpine as build
WORKDIR /app
COPY . .
RUN dotnet restore
RUN dotnet publish -o /app/published-app

FROM mcr.microsoft.com/dotnet/aspnet:6.0-alpine as runtime
WORKDIR /app
COPY --from=build /app/published-app /app
ENTRYPOINT [ "dotnet", "/app/DockerNetExample.dll" ]

Build the Image and Run the Container

• Build your image use docker build . -t dotnetexample

• Run a container with previous image. docker run --name dotnetexample -p 8081:80 -d dotnetexample

• Check your container. docker ps. You would see like this.

• Check your API use browser or another things.

Note: If you use Firefox, the return will be like this, the value maybe will be different, since it returns randomly.

• Congrats. You are done. :)

Repository

bervProject / docker-net-example

.NET Dockerfile

Docker .NET Example

Blog Post

• Web API in NET 6 + Docker
• .NET 7 + Docker
• .NET 8 + Docker

.NET 6

Please check net6.0 branch.

.NET 7

Please check net7.0 branch.

License

MIT

View on GitHub

Thank you

Thank you for visiting this tutorial. If you have any questions or suggestions, please comment in here.

Comments

[Evangelina Bonzano]

I have a suggestion so that the same does not happen to another:
This command: dotnet sln add DocketNetExample
Has an incorrect project name. It should be dotnet sln add DockerNetExample
It took me more than 5 minutes to realize haha

Thank you for the tutorial!

[Bervianto Leo Pratama]

OMG. You're right. I also just realize that is typo.

Thank you. I've updated the post.

[CesarMtz]

Thank's a lot for this tutorial, I'm learning about webapi and docker and this is perfect to understand a lot.
PD sorry for my English, I'm learning it to n.n'

[Bervianto Leo Pratama]

Thank you. Let's learn together.