Dockerfile

FROM golang:1.4

MAINTAINER Erlend Sand Bærland <potz@potz.me>

ENV WKHTML_MAJOR 0.12
ENV WKHTML_MINOR 3

ENV ALPHA "https://bitbucket.org/wkhtmltopdf/wkhtmltopdf/downloads/wkhtmltox-0.13.0-alpha-7b36694_linux-jessie-amd64.deb"

# Builds the wkhtmltopdf download URL based on version numbers above
ENV DOWNLOAD_URL "http://download.gna.org/wkhtmltopdf/${WKHTML_MAJOR}/${WKHTML_MAJOR}.${WKHTML_MINOR}/wkhtmltox-${WKHTML_MAJOR}.${WKHTML_MINOR}_linux-generic-amd64.tar.xz"

# Create system user first so the User ID gets assigned
# consistently, regardless of dependencies added later
RUN useradd -rM appuser && \
    apt-get update && \
    apt-get install -y --no-install-recommends curl \
       fontconfig libfontconfig1 libfreetype6 fonts-liberation \
       libpng12-0 libjpeg62-turbo \
       libssl1.0.0 libx11-6 libxext6 libxrender1 xz-utils \
       xfonts-base xfonts-75dpi

#RUN curl -o /tmp/wkhtmltox.deb $ALPHA && \
#    dpkg -i /tmp/wkhtmltox.deb && \
#    rm /tmp/wkhtmltox.deb

RUN curl -o /tmp/wkhtmltox.tar.xz $DOWNLOAD_URL && \
    cd /tmp && \
    tar xf wkhtmltox.tar.xz && \
    cp wkhtmltox/bin/wkhtmltopdf /usr/bin && \
    cp wkhtmltox/bin/wkhtmltoimage /usr/bin && \
    rm wkhtmltox.tar.xz && \
    rm -r wkhtmltox

RUN apt-get purge -y curl && \
    rm -rf /var/lib/apt/lists/*

COPY /app /usr/src/app
COPY local.conf /etc/fonts/local.conf
RUN chmod -x /etc/fonts/local.conf
RUN fc-cache / usr / share / fonts / release
RUN mkdir /app && \
    cd /usr/src/app && \
    go build -v -o /app/worker worker.go && \
    chown -R appuser:appuser /app

USER appuser
WORKDIR /app
EXPOSE 9090

CMD [ "/app/worker" ]