[jira] [Created] (SINGA-358) Docker containers could be reorganized

["James Lamb (JIRA)" <ji...@apache.org>]

James Lamb created SINGA-358:
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             Summary: Docker containers could be reorganized
                 Key: SINGA-358
                 URL: https://issues.apache.org/jira/browse/SINGA-358
             Project: Singa
          Issue Type: Improvement
            Reporter: James Lamb


I would like to propose a few changes to the Dockerfiles found in tool/:

[https://github.com/apache/incubator-singa/tree/master/tool/docker|https://github.com/apache/incubator-singa/tree/master/tool/docker]

The size of the resulting image can be reduced by making the following changes:
 * consolidating all RUN commands into a single RUN layer (reducing the number of layers)
 * running {color:#14892c}yum clean all{color} (on CentOS) to clear out the package cache
 * running {color:#14892c}conda clean --all{color} (in the conda container) to clear out cached package tarballs, abandoned package versions, and other build artifacts from all the libraries that are conda installed

I would also like to propose breaking out package installs onto multiple lines for readability (both of the Dockerfile and diffs in git).

I will be submitting a PR on GitHub shortly. Generating this issue first so I can tag my PR to it.



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