Option B: Manually

Create a file named Dockerfile in the same directory as the C# Solution with the following contents (You might need to create them somewhere else and then copy them over due to permissions):

FROM mcr.microsoft.com/dotnet/aspnet:6.0 AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY ["ServerAPIs/ServerAPIs.csproj", "ServerAPIs/"]
COPY ["AppModels/AppModels.csproj", "AppModels/"]
RUN dotnet restore "ServerAPIs/ServerAPIs.csproj"
COPY . .
WORKDIR "/src/ServerAPIs"
RUN dotnet build "ServerAPIs.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "ServerAPIs.csproj" -c Release -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "ServerAPIs.dll"]

and a file named .dockerignore containing the following:

**/.classpath
**/.dockerignore
**/.env
**/.git
**/.gitignore
**/.project
**/.sd
**/.settings
**/.svn
**/.toolstarget
**/.vs
**/.vscode
**/*.*proj.user
**/*.dbmdl
**/*.jfm
**/azds.yaml
**/bin
**/charts
**/docker-compose*
**/Dockerfile*
**/node_modules
**/npm-debug.log
**/obj
**/secrets.dev.yaml
**/values.dev.yaml
LICENSE
README.md

The location should look like this:

C# Solution Directory

Open a PowerShell window in this directory and run the following command:

docker build -t pscitutorial-webapi:0.1 .
docker image tag pscitutorial-webapi:0.1 <Container Registry URL>/pscitutorial-webapi:0.1 

Where <Container Registry URL> is the Container Registry’s URL from the Creating an Azure Container Registry section.

In this case, <Container Registry URL>/pscitutorial-webapi:0.1 is the image’s tag.

Now you need to log in into azure from PowerShell. Run the following commands:

az login

This will open a browser tab in which you should login with the Microsoft Account you’ve been using so far.

Once you log in, run the following command:

az acr login --name <Container Registry name>

Where <Container Registry name> is the Container Registry’s URL from the Creating an Azure Container Registry section.

With this process finished, we can now push the image to the Container Registry:

docker image push <Image tag> 

You should see something like this:

Docker Push completed

With this, the container is now available in the Container Repository for us to use.