I am looking to setup Pulumi on GitHub Codespaces and this is my Dockerfile:
FROM mcr.microsoft.com/devcontainers/universal
RUN sudo apt update
# Install Pulumi
ENV PULUMI_ROOT "$HOME/.pulumi"
ENV PATH "$PULUMI_ROOT/bin:$PATH"
RUN curl -fsSL https://get.pulumi.com | sh
There are official Devcontainer templates provided on public forums and the official Pulumi repository, but I need to specifically use the mcr.microsoft.com/devcontainers/universal image only. After it gets set up, the pulumi CLI isn't available until I manually install it again.