update docker file

Author: markjbrown

.devcontainer/Dockerfile

@@ -1,12 +1,20 @@
+# Use the official .NET 8 SDK image as a base
 FROM mcr.microsoft.com/dotnet/sdk:8.0
 
-# Install Azure Functions Core Tools
-RUN curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
+# Install dependencies
+RUN apt-get update && apt-get install -y wget apt-transport-https
 
-RUN sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg
+# Add Microsoft package repository and install Azure Functions Core Tools
+RUN wget -qO- https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > /etc/apt/trusted.gpg.d/microsoft.gpg \
+    && wget -qO- https://packages.microsoft.com/config/ubuntu/$(lsb_release -rs)/prod.list > /etc/apt/sources.list.d/microsoft-prod.list \
+    && apt-get update \
+    && apt-get install -y azure-functions-core-tools-4
 
-RUN sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/debian/$(lsb_release -rs | cut -d'.' -f 1)/prod $(lsb_release -cs) main" > /etc/apt/sources.list.d/dotnetdev.list'
+# Set the working directory
+WORKDIR /workspace
 
-RUN sudo apt-get update
+# Copy the project files
+COPY . .
 
-RUN sudo apt-get install azure-functions-core-tools-4
+# Restore the project dependencies
+RUN dotnet restore