Docker containers are designed to be immutable, making persistent data challenging. Docker volumes offer a solution by allowing containers to write and retrieve data through a local file system interface. They can be created manually or using the Docker volume API for named volumes. Sharing volumes between containers requires careful management, as Docker does not automatically mediate conflicts. Volumes must also be manually removed, using commands like `docker volume prune`. However, volumes have limitations such as difficulties with file locking and challenges in application portability due to different storage topologies.
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