FROM envoyproxy/envoy-alpine-dev:latest

RUN apk update && apk add py3-pip bash curl
RUN pip3 install -q Flask==0.11.1 requests==2.18.4
RUN mkdir /code
ADD ./service.py /code
ADD ./start_service.sh /usr/local/bin/start_service.sh
RUN chmod u+x /usr/local/bin/start_service.sh
#
# for discussion on jaeger binary compatibility, and the source of the file, see here:
#  https://github.com/envoyproxy/envoy/issues/11382#issuecomment-638012072
#
RUN echo "4a7d17d4724ee890490bcd6cfdedb12a02316a3d33214348d30979abd201f1ca  /usr/local/lib/libjaegertracing_plugin.so" > /tmp/checksum \
         && curl -Ls https://github.com/tetratelabs/getenvoy-package/files/3518103/getenvoy-centos-jaegertracing-plugin.tar.gz \
              | tar zxf - -C /usr/local/lib \
         && mv /usr/local/lib/libjaegertracing.so.0.4.2 /usr/local/lib/libjaegertracing_plugin.so \
         && sha256sum -c /tmp/checksum \
         && rm /tmp/checksum
ENTRYPOINT ["/bin/sh", "/usr/local/bin/start_service.sh"]