FROM alexellis2/phantomjs-docker:latest RUN apt-get update && apt-get install -y curl \ && curl -sL https://github.com/openfaas/faas/releases/download/0.13.0/fwatchdog > /usr/bin/fwatchdog \ && chmod +x /usr/bin/fwatchdog \ && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* ENV fprocess="phantomjs /dev/stdin" HEALTHCHECK --interval=5s CMD [ -e /tmp/.lock ] || exit 1 CMD ["fwatchdog"]