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Oct 13, 2022
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Use source from snippets in corresponding content #31757

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28 changes: 2 additions & 26 deletions docs/core/docker/build-container.md
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Expand Up @@ -83,15 +83,7 @@ Console.WriteLine("Hello World!");

Replace the file with the following code that counts numbers every second:

```csharp
var counter = 0;
var max = args.Length != 0 ? Convert.ToInt32(args[0]) : -1;
while (max == -1 || counter < max)
{
Console.WriteLine($"Counter: {++counter}");
await Task.Delay(TimeSpan.FromMilliseconds(1_000));
}
```
:::code source="snippets/App/Program.cs":::

Save the file and test the program again with `dotnet run`. Remember that this app runs indefinitely. Use the cancel command <kbd>Ctrl+C</kbd> to stop it. The following is an example output:

Expand Down Expand Up @@ -154,23 +146,7 @@ The *Dockerfile* file is used by the `docker build` command to create a containe

Create a file named *Dockerfile* in the directory containing the *.csproj* and open it in a text editor. This tutorial will use the ASP.NET Core runtime image (which contains the .NET runtime image) and corresponds with the .NET console application.

```dockerfile
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build-env
WORKDIR /app

# Copy everything
COPY . ./
# Restore as distinct layers
RUN dotnet restore
# Build and publish a release
RUN dotnet publish -c Release -o out

# Build runtime image
FROM mcr.microsoft.com/dotnet/aspnet:6.0
WORKDIR /app
COPY --from=build-env /app/out .
ENTRYPOINT ["dotnet", "DotNet.Docker.dll"]
```
:::code language="docker" source="snippets/App/Dockerfile":::

> [!NOTE]
> The ASP.NET Core runtime image is used intentionally here, although the `mcr.microsoft.com/dotnet/runtime:6.0` image could have been used.
Expand Down