Dockerfile

FROM alpine:3.4

RUN apk --no-cache add ruby ruby-irb ruby-json ruby-bigdecimal ruby-rake \
    ruby-io-console ruby-bundler libstdc++ tzdata postgresql-client nodejs \
    libxml2 libxslt libgcrypt sqlite-libs pcre curl postgresql bash procps \
    && cp /usr/bin/pg_dump /usr/bin/pg_restore /tmp/ \
    && apk del --purge postgresql \
    && mv /tmp/pg_dump /tmp/pg_restore /usr/bin/ \
    && echo "gem: --no-document" > /etc/gemrc

ENV PASSENGER_VERSION=5.0.30
RUN apk --no-cache add --virtual passenger-dependencies gcc g++ make \
    linux-headers curl-dev pcre-dev ruby-dev \
    && gem install -v $PASSENGER_VERSION passenger \
    && echo "#undef LIBC_HAS_BACKTRACE_FUNC" > /usr/include/execinfo.h \
    && passenger-config install-standalone-runtime --auto \
    && passenger-config build-native-support \
    && apk del --purge passenger-dependencies

# Copy just the files for bundle install
ADD Gemfile      /app/
ADD Gemfile.lock /app/
ADD vendor/cache /app/vendor/cache

ENV BUNDLE_SILENCE_ROOT_WARNING=1 \
    BUNDLE_IGNORE_MESSAGES=1 \
    BUNDLE_GITHUB__HTTPS=1 \
    NOKOGIRI_USE_SYSTEM_LIBRARIES=1 \
    BUNDLE_FROZEN=1 \
    BUNDLE_PATH=/app/vendor/bundle \
    BUNDLE_BIN=/app/bin \
    BUNDLE_GEMFILE=/app/Gemfile \
    BUNDLE_WITHOUT=development:benchmark:test

RUN apk --no-cache add --virtual build-dependencies build-base git ruby-dev \
    curl-dev postgresql-dev libxml2-dev libxslt-dev libgcrypt-dev sqlite-dev \
    && bundle install \
    && apk del --purge build-dependencies

ENV RAILS_ENV=production PATH=/app/bin:$PATH

# Copy just the files needed for assets:precompile
ADD Rakefile   /app/
ADD config     /app/config
ADD public     /app/public
ADD app/assets /app/app/assets
# Fix loading of solidus base controller.
ADD app/controllers/application_controller.rb /app/app/controllers/
RUN cd /app && rake assets:precompile DATABASE_URL=sqlite3:///tmp/dummy.db SECRET_KEY_BASE=dummy

ADD . /app
RUN chown -R nobody:nogroup /app
USER nobody

WORKDIR /app

EXPOSE 5000
CMD ["passenger", "start", "-p", "5000", "-e", "production", "--app-type", "rack", "--auto"]