Ubuntu 20.04 With .NET9 SDK

Ubuntu 20.04 With .NET9 SDK

# Use Ubuntu 20.04 as the base image
FROM ubuntu:20.04

# Set environment variables
ENV DEBIAN_FRONTEND=noninteractive

# Install essential packages and dependencies
RUN apt-get update && \
    apt-get install -y \
        wget \
        apt-transport-https \
        software-properties-common && \
    # Add Microsoft package signing key and package repository
    wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb && \
    dpkg -i packages-microsoft-prod.deb && \
    rm packages-microsoft-prod.deb && \
    # Update package list and install .NET SDK
    apt-get update && \
    apt-get install -y dotnet-sdk-9.0 && \
    # Clean up
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Verify the installation
RUN dotnet --version

# Set working directory
WORKDIR /app

# Default command
CMD ["dotnet", "--help"]