add prometheus metrics plugin, expose 8000/tcp

add remotecv and redis
use CMD instead of ENTRYPOINT to reuse image for remotecv

Dockerfile

@@ -4,11 +4,11 @@ RUN apt-get update -qq \
  && apt-get install -qqy --no-install-recommends libjpeg-turbo-progs \
  && rm -r /var/lib/apt/lists/*
 
-RUN pip install thumbor opencv-python
+RUN pip install thumbor opencv-python remotecv redis tc_prometheus
 
 RUN mkdir /etc/thumbor \
- && thumbor-config > /etc/thumbor/thumbor.conf
+ && thumbor-config > /etc/thumbor.conf
 
 EXPOSE 8888
-ENTRYPOINT ["/usr/local/bin/thumbor"]
-CMD ["--conf", "/etc/thumbor/thumbor.conf"]
+EXPOSE 8000
+CMD ["/usr/local/bin/thumbor"]