switch to custom Dockerfile

Author: mythz

.github/workflows/build-container.yml

@@ -100,24 +100,13 @@ jobs:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
-          
-      - name: Build custom base image
-        run: |
-          cat << 'EOF' > base.Dockerfile
-          FROM mcr.microsoft.com/dotnet/aspnet:8.0
-          RUN apt-get update && apt-get install -y curl unzip \
-              && curl -fsSL https://bun.sh/install | bash \
-              && mv /root/.bun/bin/bun /usr/local/bin/ \
-              && apt-get clean \
-              && rm -rf /var/lib/apt/lists/*
-          EOF
-          docker build -f base.Dockerfile -t docker.io/dotnet-bun-base:latest .
 
-      - name: Publish container
-        run: |
-          dotnet publish --os linux --arch x64 /t:PublishContainer \
-            -p:ContainerBaseImage=docker.io/dotnet-bun-base:latest \
-            -p:ContainerRegistry=ghcr.io \
-            -p:ContainerImageTags=latest \
-            -p:ContainerPort=80 \
-            -p:ContainerRepository=${{ env.image_repository_name }}
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: |
+            ghcr.io/${{ env.image_repository_name }}:latest
+            ghcr.io/${{ env.image_repository_name }}:${{ github.sha }}
+          platforms: linux/amd64

Dockerfile

@@ -0,0 +1,26 @@
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+WORKDIR /app
+EXPOSE 8080
+
+# Install bun
+RUN apt-get update && apt-get install -y curl unzip \
+    && curl -fsSL https://bun.sh/install | bash \
+    && mv /root/.bun/bin/bun /usr/local/bin/ \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+WORKDIR /src
+COPY ["MyApp/MyApp.csproj", "MyApp/"]
+RUN dotnet restore "MyApp/MyApp.csproj"
+COPY . .
+WORKDIR "/src/MyApp"
+RUN dotnet build "MyApp.csproj" -c Release -o /app/build
+
+FROM build AS publish
+RUN dotnet publish "MyApp.csproj" -c Release -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "MyApp.dll"]