It is redundant to git clone TensorFlow repo.

[workingloong]

We only need those proto files to build elasticdl.proto, so we can only download those files by wget. Because TensorFlow repo is huge which makes the image huge.

elasticdl/elasticdl/docker/Dockerfile

Lines 57 to 60 in 5fac16d

	ENV TF_PATH /tmp/tensorflow
	RUN cd /tmp \
	&& git clone --depth=1 --branch v2.2.0-rc0 \
	https://github.com/tensorflow/tensorflow

[egolearner]

You can delete unnecessary files after cloning TensorFlow in the same RUN command. It will both keep the image small and avoid wget network issue.

[workingloong]

You can delete unnecessary files after cloning TensorFlow in the same RUN command. It will both keep the image small and avoid wget network issue.

Good suggestion!