Docker ElasticSearch挂载本地数据 报错

应用场景中需要把数据挂载在本地的目录，以便以后数据的迁移与备份。
挂载命令：

docker run -p 9200:9200 -e "http.host=0.0.0.0" -e "transport.host=127.0.0.1" -v /home/myuser/elastic_data/:/usr/share/elasticsearch/data docker.elastic.co/elasticsearch/elasticsearch:5.5.1

其中-v是指定的挂载路径 
/home/myuser/elastic_data/
 这个是本地路径
 
运行后报错：

[2018-11-13T02:23:33,994][INFO ][o.e.n.Node               ]  initializing ...

[2018-11-13T02:23:34,010][WARN ][o.e.b.ElasticsearchUncaughtExceptionHandler]  uncaught exception in thread [main]

org.elasticsearch.bootstrap.StartupException: java.lang.IllegalStateException: Failed to create node environment

        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:127) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Elasticsearch.execute(Elasticsearch.java:114) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:67) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:122) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.cli.Command.main(Command.java:88) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:91) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Elasticsearch.main(Elasticsearch.java:84) ~[elasticsearch-5.5.1.jar:5.5.1]

Caused by: java.lang.IllegalStateException: Failed to create node environment

        at org.elasticsearch.node.Node.<init>(Node.java:267) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.node.Node.<init>(Node.java:244) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:232) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:232) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:351) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:123) ~[elasticsearch-5.5.1.jar:5.5.1]

        ... 6 more

Caused by: java.nio.file.AccessDeniedException: /usr/share/elasticsearch/data/nodes

        at sun.nio.fs.UnixException.translateToIOException(UnixException.java:84) ~[?:?]

        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:102) ~[?:?]

        at sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:107) ~[?:?]

        at sun.nio.fs.UnixFileSystemProvider.createDirectory(UnixFileSystemProvider.java:384) ~[?:?]

        at java.nio.file.Files.createDirectory(Files.java:674) ~[?:1.8.0_141]

        at java.nio.file.Files.createAndCheckIsDirectory(Files.java:781) ~[?:1.8.0_141]

        at java.nio.file.Files.createDirectories(Files.java:767) ~[?:1.8.0_141]

        at org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:221) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.node.Node.<init>(Node.java:264) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.node.Node.<init>(Node.java:244) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:232) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Bootstrap.setup(Bootstrap.java:232) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Bootstrap.init(Bootstrap.java:351) ~[elasticsearch-5.5.1.jar:5.5.1]

        at org.elasticsearch.bootstrap.Elasticsearch.init(Elasticsearch.java:123) ~[elasticsearch-5.5.1.jar:5.5.1]

        ... 6 more

原因是权限问题，需要把目录
/home/myuser/elastic_data/ 改为777， 然后问题就解决了

chmod 777 /home/myuser/elastic_data/

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