Dockerfile

FROM debian:jessie
MAINTAINER Michał "rysiek" Woźniak <rysiek@hackerspace.pl>

ENV DEBIAN_FRONTEND noninteractive
ENV ETHERPAD_VERSION 1.5.7

# install the required packages
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
        nodejs \
        git-core \
        curl \
        python \
        libssl-dev \
        pkg-config \
        build-essential \
        ca-certificates \
        npm \
        tidy \
        abiword \
        --no-install-recommends && \
    rm -rf /var/lib/apt/lists/*

# yeah, we need that because bin/installDeps.sh looks for node
# and debian has nodejs
RUN ln -s /usr/bin/nodejs /usr/bin/node

# yay, clone the repo!
RUN git clone -b "release/$ETHERPAD_VERSION" --single-branch https://github.com/ether/etherpad-lite.git /opt/etherpad && \
    rm -rf /opt/etherpad/.git
    
# make it sane, security-wise
RUN groupadd -r etherpad && \
    useradd -d /opt/etherpad -r -g `getent group etherpad | cut -d: -f3` etherpad && \
    mkdir -p /opt/etherpad/config && \
    chown -R etherpad:etherpad /opt/etherpad

# install the deps
# sync used due to a bug in Docker, working around "text file busy" error
RUN cd /opt/etherpad/ && \
    chown -R etherpad:etherpad ./ && \
    sync && \
    bin/installDeps.sh
   
# ep_ldapauth from source
# some day we will be able to do it properly with:
# npm install ep_ldapauth
RUN cd /opt/etherpad && \
    git clone https://github.com/tykeal/ep_ldapauth.git && \
    cd ep_ldapauth && \
    npm install && \
    cd ../ && \
    rm -rf ep_ldapauth
    
# handle settings
RUN rm /opt/etherpad/settings.json && \
    ln -s /opt/etherpad/config/settings.json /opt/etherpad/settings.json
    
# entrypoint script
COPY start.sh /opt/etherpad/start.sh
RUN chmod ug+x /opt/etherpad/start.sh
    
# expose, volume
EXPOSE 9001
VOLUME ['/opt/etherpad/config/', '/var/log/etherpad/'] # config

# user, workdir
WORKDIR "/opt/etherpad"

# command
CMD ["/opt/etherpad/start.sh"]