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From merrimanr <>
Subject [GitHub] incubator-metron issue #472: METRON-700: Add hadoop container to metron-dock...
Date Tue, 07 Mar 2017 23:34:18 GMT
Github user merrimanr commented on the issue:
    While reviewing this I had an idea for another PR that would make this easier to use.
 The slowest part of spinning this up is downloading the kafka and hbase distributions.  What
would you think of splitting these Dockerfiles into 2 separate images:  one with just the
service installed (kafka or hbase) and another that extends the service and installs the Metron
bits on top?  This would allow us to quickly deploy Metron changes and rebuild.  To get that
to work we would need to a way to get the base image installed locally.  Initially this could
just be a build script that needs to be run once before spinning the application up and long
term it could live in Docker Hub.  
    What do you think of this idea?  Would it be helpful?  I'm a little hesitant to add a
manual step that needs to be done before the application will work but I don't want to add
that hook into the build process, even if we do add a check for a running Docker machine.
 Maybe publishing to Docker Hub now is the answer.  Any feedback or ideas?

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