{"id":4823,"date":"2018-01-12T06:46:08","date_gmt":"2018-01-12T06:46:08","guid":{"rendered":"http:\/\/www.scmgalaxy.com\/tutorials\/?p=4823"},"modified":"2021-02-27T10:12:53","modified_gmt":"2021-02-27T10:12:53","slug":"docker-compose-prepends-current-directory-name-to-named-volumes","status":"publish","type":"post","link":"https:\/\/www.scmgalaxy.com\/tutorials\/docker-compose-prepends-current-directory-name-to-named-volumes\/","title":{"rendered":"docker-compose prepends current directory name to named volumes"},"content":{"rendered":"

\"docker-compose\"<\/p>\n

Issues –\u00a0docker-compose prepends current directory name to named volumes<\/p>\n

What actually happens is that the named volume gets prepended with (a simplified version of) the directory name from which the docker-compose command was run.<\/p>\n

For instance, if I run from the “dcompos-programs” directory, and I name the volume “my_named_vol”, then I end up with a volume named “dcompos-programs_my_named_vol”.<\/p>\n

docker-compose-named-volume.yml:<\/strong><\/p>\n

\r\n\r\nversion: '3'\r\nservices:\r\n\r\nsolr:\r\n image: alpine:3.5\r\n container_name: foo\r\n volumes:\r\n - my_named_vol:\/opt\/foo\r\nvolumes:\r\n my_named_vol:\r\n\r\n<\/pre>\n
Result:<\/strong><\/p>\n
\r\n\r\n$ docker-compose -f docker-compose-named-volume.yml up -d &amp;&amp; \\\r\n&gt; echo "## named volume:" &amp;&amp; \\\r\n&gt; docker volume ls | grep my_named_vol &amp;&amp; \\\r\n&gt; echo "## stop" &amp;&amp; \\\r\n&gt; docker-compose -f docker-compose-named-volume.yml down &amp;&amp; \\\r\n&gt; echo "## rm volume" &amp;&amp; \\\r\n&gt; docker volume rm $(docker volume ls | grep my_named_vol | awk '{print $2}')\r\nCreating network "deploymentroot_default" with the default driver\r\nCreating volume "dcompos-programs_my_named_vol" with default driver\r\nCreating foo\r\n\r\n<\/pre>\n
Answer<\/strong>
\ndocker-compose uses a project name. By default it\u2019s the directory name which prevents collisions with existing containers. But you can use -p to change the prefix name.<\/p>\n
You can use the external volume setting to avoid the prefix.
\nhttps:\/\/docs.docker.com\/compose\/compose-file\/#external<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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