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A comment on Docker Misconceptions. Parent comment

Re:Docker Misconceptions by ollysb on Monday June 09, 2014 @11:06PM (#7871664)
It sounds like you need something else to help you build the dockerfiles then i.e. I need a dockerfile with nginx, postgres and memcached so I use something like puppet/chef to put it together, is that possible?
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Re:Docker Misconceptions by nl on Monday June 09, 2014 @11:44PM (#7871741)
It's easy to build new images from Dockerfiles. And "cut-n-paste" based "inheritance" works well when combining two or more Dockerfiles into a single one that has everything you want.

But you can't use composition to combine the actual downloaded images themselves.

Using Chef within Docker to build up the services is documented on the Docker site[1], and of course puppet or whatever is essentially the same.

[1] http://docs.docker.com/articles/chef/

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Re:Docker Misconceptions by vidarh on Tuesday June 10, 2014 @01:07AM (#7871921)
My personal opinion is that if you think you need a Dockerfile with nginx, postgres and memcached, you're still thinking in terms of VMs. To me, that is three containers.
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