Docker Volumes

Trigger

Use this skill when:

• Persisting data across container restarts or recreations
• Choosing between named volumes, bind mounts, and tmpfs
• Backing up or restoring volume data
• Debugging permission issues with mounted directories
• Sharing data between multiple containers
• Extracting files from containers with docker cp
• Managing volume lifecycle (create, inspect, prune)

Required Inputs

• Type of data being persisted (database, uploads, config, logs)
• Whether the data needs to survive container removal
• Host OS (Linux, macOS, Windows) for permission considerations
• Whether multiple containers need concurrent access