refs #62, #44: adopt new runner component for C image

c/Dockerfile

@@ -3,15 +3,17 @@ FROM lablup/kernel-base-python3-minimal:latest
 # Install minimal C compile environments
 RUN apk add --no-cache build-base
 
-COPY run.py /home/sorna/run.py
-COPY policy.yml /home/sorna/policy.yml
-
-# Test using runner script from kernel-runner package
+# Install kernel-runner scripts package
+# TODO: use PyPI's package if available
 RUN apk add --no-cache git
 RUN cd /home/sorna && \
     git clone https://github.com/lablup/backend.ai-kernel-runner.git
-RUN cd /home/sorna/backend.ai-kernel-runner && pip install -e .
-CMD ["/home/sorna/jail", "-policy", "/home/sorna/policy.yml", \
-     "/usr/local/bin/python", "-m", "ai.backend.kernel", "c"]
+RUN cd /home/sorna/backend.ai-kernel-runner && pip install -e .[c]
+# RUN pip install backend.ai-kernel-runner[c]
+
+COPY policy.yml /home/sorna/policy.yml
 
 LABEL io.sorna.features "batch query uid-match user-input"
+
+CMD ["/home/sorna/jail", "-policy", "/home/sorna/policy.yml", \
+     "/usr/local/bin/python", "-m", "ai.backend.kernel", "c"]