MSDN Channel 9: Dockerfile to create Docker image for PowerShell Core & .NET Core on CentOS 7

Dockerfile

FROM centos:centos7

MAINTAINER Trevor Sullivan <trevor@artofshell.com>

ENV PSFolder /powershell

RUN yum --assumeyes install libunwind libicu \
  && curl -sSL -o dotnet.tar.gz https://go.microsoft.com/fwlink/?LinkID=809131 \
  && mkdir -p /opt/dotnet && tar zxf dotnet.tar.gz -C /opt/dotnet \
  && ln -s /opt/dotnet/dotnet /usr/local/bin \
  && rm dotnet.tar.gz \
  && mkdir $PSFolder

WORKDIR $PSFolder

ENV POWERSHELL_DOWNLOAD_URL https://github.com/PowerShell/PowerShell/releases/download/v6.0.0-alpha.9/powershell-6.0.0_alpha.9-1.el7.centos.x86_64.rpm

RUN curl -L $POWERSHELL_DOWNLOAD_URL --output powershell.rpm \
  && rpm --upgrade -vh powershell.rpm \
  && rm powershell.rpm

ENTRYPOINT ["powershell"]