[docker] Fix copy of the Slack manifest file
@@ -43,6 +43,7 @@ RUN pip3 install --upgrade --no-cache-dir setuptools virtualenv pip && \
rm -rf /var/lib/apt/lists/* && \
cp -r /hue/tools/docker/hue/conf3/* /usr/share/hue/desktop/conf/ && \
cp /hue/tools/docker/hue/startup.sh /usr/share/hue/startup.sh && \
+ mkdir -p /usr/share/hue/tools/slack && \
cp /hue/tools/slack/manifest.yml /usr/share/hue/tools/slack/manifest.yml && \
rm -rf /hue && \
rm -rf /usr/share/hue/node_modules
