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by zgohr
4690 days ago
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Hey shykes, This is something I'm still not quite clear on. According to the issues in mention here: https://github.com/dotcloud/docker/issues/1185 it is possible to do what StavrosK is asking. What am I missing? Why would a volume need an initial state when when the goal can be accomplished with a bind mount? I also +1'd the documentation issue because I can't seem to wrap my head around what the current state of volumes and mounting is. Appreciate any direction you could point me in. |
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This is in the special case where you want the application itself to determine the initial state of the volume. For example, the developer might want the database pre-loaded with a certain schema, default data and so on. External volumes/bind mounts are a way for the sysadmin to override how and where the contents of a volume are stored.
Re: documentation, you can take a look at this example: http://docs.docker.io/en/latest/examples/couchdb_data_volume...
I hope this helps! Feel free to join the IRC channel (#docker on freenode), it's unusually active and helpful, I'm very proud of how nice the people are on there :)