FROM ubuntu:18.04

RUN apt-get update && apt-get install -y --no-install-recommends clang zlib1g-dev wget ca-certificates

RUN wget https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
RUN dpkg -i packages-microsoft-prod.deb
RUN rm packages-microsoft-prod.deb

RUN apt update && apt install -y

WORKDIR /app/dotnet
RUN wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh
RUN chmod +x ./dotnet-install.sh
RUN ./dotnet-install.sh --version latest

WORKDIR /
RUN rm -r /app/dotnet