1. docker
  2. Commit 8c52140059c83b9ef6f4f9336f162945cd360c4f
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Added some more items to the FAQ

James Turnbull authored on 2013/12/20 04:27:47
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docs/sources/faq.rst
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@@ -111,7 +111,7 @@ What does Docker add to just plain LXC?
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       registry to store and transfer private containers, for internal
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       server deployments for example.
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-   * *Tool ecosystem.*
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+   * *Tool ecosystem.*
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       Docker defines an API for automating and customizing the
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       creation and deployment of containers. There are a huge number
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       of tools integrating with Docker to extend its
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@@ -122,6 +122,12 @@ What does Docker add to just plain LXC?
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       (Jenkins, Strider, Travis), etc. Docker is rapidly establishing
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       itself as the standard for container-based tooling.
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+What is different between a Docker container and a VM?
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+......................................................
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+
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+There's a great StackOverflow answer `here
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+<http://stackoverflow.com/questions/16047306/how-is-docker-io-different-from-a-normal-virtual-machine>`_.
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+
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 Do I lose my data when the container exits?
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 ...........................................
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@@ -129,6 +135,52 @@ Not at all! Any data that your application writes to disk gets preserved
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 in its container until you explicitly delete the container. The file
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 system for the container persists even after the container halts.
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+How far do Docker containers scale?
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+...................................
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+
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+Some of the largest server farms in the world today are based on containers.
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+Large web deployments like Google and Twitter, and platform providers such as
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+Heroku and dotCloud all run on container technology, at a scale of hundreds of
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+thousands or even millions of containers running in parallel.
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+
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+How do I connect Docker containers?
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+...................................
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+
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+Currently the recommended way to link containers is via the `link` primitive.
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+You can see details of how to use it `here <http://docs.docker.io/en/latest/use/working_with_links_names/>`_.
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+
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+Also of useful when enabling more flexible service portability is the
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+`Ambassador linking pattern
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+<http://docs.docker.io/en/latest/use/ambassador_pattern_linking/>`_.
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+
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+How do I run more than one process in a Docker container?
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+.........................................................
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+
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+Any capable process supervisor such as http://supervisord.org/, runit, s6, or
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+daemontools can do the trick. Docker will start up the process management
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+daemon which will then fork to run additional processes. As long as the
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+processor manager daemon continues to run, the container will continue to as
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+well.  You can see a more subsantial example `here
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+<http://docs.docker.io/en/latest/examples/using_supervisord/>`_.
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+
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+What platforms does Docker run on?
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+..................................
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+
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+Linux:
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+
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+- Ubuntu 12.04, 13.04 et al
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+- Fedora 19/20+
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+- RHEL 6.5+
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+- Centos 6+
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+- Gento
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+- ArchLinux
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+
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+Cloud:
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+
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+- Amazon EC2
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+- Google Compute Engine
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+- Rackspace
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+
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 Can I help by adding some questions and answers?
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