initial

Dockerfile

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+# focal 2020.01 dev
+FROM ubuntu@sha256:d050ed7278c16ff627e4a70d7d353f1a2ec74d8a0b66e5a865356d92f5f6d87b
+
+ENV DEBIAN_FRONTEND noninteractive
+
+ARG UBUNTU_MIRROR=http://archive.ubuntu.com/ubuntu
+
+RUN echo "deb $UBUNTU_MIRROR focal main universe restricted multiverse" > /etc/apt/sources.list.new && \
+echo "deb $UBUNTU_MIRROR focal-updates main universe restricted multiverse" >> /etc/apt/sources.list.new && \
+echo "deb $UBUNTU_MIRROR focal-security main universe restricted multiverse" >> /etc/apt/sources.list.new && \
+echo "deb $UBUNTU_MIRROR focal-backports main universe restricted multiverse" >> /etc/apt/sources.list.new && \
+mv /etc/apt/sources.list.new /etc/apt/sources.list
+
+
+# we only install essential system packages here
+ARG SYSTEM_PACKAGES="build-essential ca-certificates git golang rsync runit software-properties-common"
+
+RUN \
+    apt update && \
+    apt -y upgrade && \
+    apt -y install $SYSTEM_PACKAGES && \
+    go get -v -u github.com/peterbourgon/runsvinit && \
+    cp /root/go/bin/runsvinit /usr/local/sbin/runsvinit && \
+    rm -r /root/go
+
+COPY ./root /tmp/rootoverlay
+RUN rsync -avP /tmp/rootoverlay/ / && \
+    rm -rf /tmp/rootoverlay
+
+# prereqs for discourse
+RUN apt update && \
+    apt -y install \
+        advancecomp \
+        autoconf \
+        automake \
+        bison \
+        curl \
+        debconf-utils \
+        expect \
+        gawk \
+        gifsicle \
+        git-core \
+        gnupg2 \
+        imagemagick \
+        jhead \
+        jpegoptim \
+        libcurl4-openssl-dev \
+        libffi-dev \
+        libgdbm-dev \
+        libjpeg-turbo-progs \
+        libncurses5-dev \
+        libpcre3 \
+        libpcre3-dev \
+        libreadline6-dev \
+        libsqlite3-dev \
+        libssl-dev \
+        libtool \
+        libyaml-dev \
+        openssl \
+        optipng \
+        pngcrush \
+        pngquant \
+        python3-software-properties \
+        redis-server \
+        ruby-full \
+        sqlite3 \
+        sudo \
+        vim \
+        zlib1g-dev
+
+COPY ./run.sh /tmp/run.sh
+RUN /bin/bash /tmp/run.sh && rm /tmp/run.sh
+
+CMD ["/usr/local/sbin/runsvinit"]