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GitHub flavored markdown is now supported for links and images. Also, ran LinkChecker and FileResolver. Yay! Fixes from Spider check Output for docker/docker now goes into engine directory Signed-off-by: Mary Anthony <mary@docker.com>
49 lines
1.7 KiB
Markdown
49 lines
1.7 KiB
Markdown
<!--[metadata]>
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+++
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title = "Dockerizing a CouchDB service"
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description = "Sharing data between 2 couchdb databases"
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keywords = ["docker, example, package installation, networking, couchdb, data volumes"]
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[menu.main]
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parent = "smn_applied"
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<![end-metadata]-->
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# Dockerizing a CouchDB service
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> **Note**:
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> - **If you don't like sudo** then see [*Giving non-root
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> access*](../installation/binaries.md#giving-non-root-access)
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Here's an example of using data volumes to share the same data between
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two CouchDB containers. This could be used for hot upgrades, testing
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different versions of CouchDB on the same data, etc.
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## Create first database
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Note that we're marking `/var/lib/couchdb` as a data volume.
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$ COUCH1=$(docker run -d -p 5984 -v /var/lib/couchdb shykes/couchdb:2013-05-03)
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## Add data to the first database
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We're assuming your Docker host is reachable at `localhost`. If not,
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replace `localhost` with the public IP of your Docker host.
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$ HOST=localhost
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$ URL="http://$HOST:$(docker port $COUCH1 5984 | grep -o '[1-9][0-9]*$')/_utils/"
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$ echo "Navigate to $URL in your browser, and use the couch interface to add data"
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## Create second database
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This time, we're requesting shared access to `$COUCH1`'s volumes.
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$ COUCH2=$(docker run -d -p 5984 --volumes-from $COUCH1 shykes/couchdb:2013-05-03)
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## Browse data on the second database
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$ HOST=localhost
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$ URL="http://$HOST:$(docker port $COUCH2 5984 | grep -o '[1-9][0-9]*$')/_utils/"
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$ echo "Navigate to $URL in your browser. You should see the same data as in the first database"'!'
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Congratulations, you are now running two Couchdb containers, completely
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isolated from each other *except* for their data.
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