title: ERROR: Build process returned exit code 137 during Docker build on Tutum
body: <p>I've set a new repository on Tutum linked to a Github repository. This project built successfully on my local machine but it fail on Tutum after 4 hours and give me the following logs.</p>
  
  <pre><code>Step 27 : ENTRYPOINT /www/run.sh
  ---&gt; Running in 666e1e87a660
  ---&gt; eeb9646f9317
  Removing intermediate container 666e1e87a660
  Successfully built eeb9646f9317
  Creating builder1769_sut_1
  [Thu Jan 07 17:42:45.675789 2016] [mpm_prefork:notice] [pid 8] AH00163: Apache/2.4.10 (Debian) PHP/5.5.30 configured -- resuming normal operations
  [Thu Jan 07 17:42:45.675813 2016] [core:notice] [pid 8] AH00094: Command line: '/usr/sbin/apache2 -D FOREGROUND'
  ERROR: Build process returned exit code 137
  builder-1769: Terminating...
  builder-1769: Terminated
  ERROR: Build in 'dockerize' (bcf1bce8) failed in 4:00:52
  </code></pre>
  
  <p>The final step 27 of my Dockerfile has been reached and Docker return the message "Successfully built eeb9646f9317" but also "ERROR: Build process returned exit code 137" just after.</p>
  
  <p>Here is my Dockerfile</p>
  
  <pre><code>FROM php:5.5-apache
  
  #Add Servername to avoid warning
  RUN sed -i '/ServerName localhost/ d' /etc/apache2/apache2.conf &amp;&amp; sed -i '/Listen 80/ a\ServerName localhost' /etc/apache2/apache2.conf
  
  #Add apt packages list for Firefox
  RUN echo "deb http://packages.linuxmint.com debian import" &gt;&gt; /etc/apt/sources.list
  
  RUN apt-get update \
      &amp;&amp; apt-get install -q -y --force-yes libpng-dev php5-imagick php5-curl php5-mysql php5-ssh2 vim wkhtmltopdf curl nodejs npm nodejs-legacy ruby-full default-jre firefox xvfb  \
      git zlib1g-dev libicu-dev g++ libmcrypt-dev libxml2-dev \
      &amp;&amp; rm -rf /var/lib/apt/lists/*
  
  RUN curl -sSL https://getcomposer.org/installer | php &amp;&amp; mv composer.phar /usr/local/bin/composer \
      &amp;&amp; docker-php-ext-configure intl \
      &amp;&amp; docker-php-ext-install gd zip pdo_mysql soap mbstring intl mcrypt bcmath \
      &amp;&amp; a2enmod expires headers rewrite \
      &amp;&amp; pecl install apcu-4.0.10 \
      &amp;&amp; php5enmod mcrypt pdo_mysql \
      &amp;&amp; echo "date.timezone=Europe/Paris" &gt;&gt; /usr/local/etc/php/php.ini \
      &amp;&amp; echo "short_open_tag=Off" &gt;&gt; /usr/local/etc/php/php.ini \
      &amp;&amp; echo "memory_limit=-1" &gt;&gt; /usr/local/etc/php/php.ini \
      &amp;&amp; echo "upload_max_filesize=6M" &gt;&gt; /usr/local/etc/php/php.ini \
      &amp;&amp; echo "extension=apcu.so" &gt;&gt; /usr/local/etc/php/php.ini
  
  #Firefox
  ENV FIREFOX_MINOR 34.0.5
  RUN [ -e /usr/bin/firefox ] &amp;&amp; rm /usr/bin/firefox
  ADD https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/${FIREFOX_MINOR}/linux-x86_64/en-US/firefox-${FIREFOX_MINOR}.tar.bz2 /tmp/
  RUN apt-get install -q -y libdbus-glib-1-2
  RUN tar -xvjf /tmp/firefox-${FIREFOX_MINOR}.tar.bz2 -C /opt/
  RUN chmod -R +x /opt/firefox/
  RUN ln -s /opt/firefox/firefox /usr/bin/firefox
  
  ADD .docker/vhost.conf /etc/apache2/sites-available/wweeddoo.conf
  RUN a2ensite wweeddoo.conf
  RUN sed -i '/DocumentRoot \/var\/www\/html/ d' /etc/apache2/apache2.conf
  RUN sed -i 's/var\/www/www/g' /etc/apache2/apache2.conf
  
  ADD . /www
  WORKDIR /www
  
  # Install dependencies
  RUN mkdir -p app/sessions var/cache var/logs
  RUN chown -R www-data app/sessions var/cache var/logs
  RUN npm install -g bower
  RUN npm install -g less
  RUN gem install sass
  RUN composer config -g github-oauth.github.com ff040c19e1b0ae0a4b97c0a140272ec89c8da161
  RUN composer install --optimize-autoloader --prefer-dist
  
  # Add run script
  ADD .docker/run.sh /www/run.sh
  RUN chmod +x /www/run.sh
  
  ENTRYPOINT ["/www/run.sh"]
  </code></pre>
  
  <p>And my run.sh</p>
  
  <pre><code>chown -R www-data var/cache var/logs app/sessions
  /usr/sbin/apache2ctl -D FOREGROUND
  </code></pre>
  
  <p>Any idea ?</p>