Docker Volumes: Persist Data Across Container Restarts

How Docker volumes work: named volumes, bind mounts, tmpfs, volume drivers, and backup strategies.

Three Mount Types

# Named volume (Docker-managed, survives rm)\ndocker run -v mydata:/app/data myimage\n\n# Bind mount (host directory)\ndocker run -v $(pwd)/src:/app/src myimage\n\n# tmpfs (in-memory, ephemeral)\ndocker run --tmpfs /app/tmp myimage

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