add Dockerfile

Dockerfile

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+FROM ubuntu:20.04 AS build-env
+
+ENV DEBIAN_FRONTEND=interactive
+
+USER root
+
+RUN apt-get update && apt-get install -y software-properties-common
+
+RUN add-apt-repository ppa:openrct2/master && apt-get update && apt-get install --no-install-recommends -y openrct2
+
+RUN openrct2-cli --version && openrct2-cli scan-objects
+
+RUN adduser --quiet --home /home/container container
+
+USER container
+
+ENV USER=container HOME=/home/container
+
+WORKDIR /home/container
+
+COPY ./entrypoint.sh /entrypoint.sh
+ENTRYPOINT /bin/bash /entrypoint.sh