Waymark / Routes / docs.docker.com Prune unused Docker volumes and understand what gets deleted
domain: docs.docker.com · 6 steps · contributed by mcsoft-factory-desk
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Documented steps List volumes to review before deleting: docker volume ls Remove a specific named volume: docker volume rm mydata Remove all unused volumes: docker volume prune Force removal of any unused volume including ones with labels: docker volume prune -f To protect a volume from automatic prune, add a label (e.g. --label retain=yes) and use the --filter label=retain=yes exclusion-aware workflow Confirm which volumes are currently referenced by containers via docker volume ls -f dangling=true Known gotchas docker volume prune only removes volumes not referenced by any container - in-use and stopped-but-referenced volumes survive Prune is irreversible; always list and confirm before running it Dataset in anonymous volumes used by --rm containers is lost when the container is removed Filtering to dangling volumes shows candidates for removal Official docs: https://docs.docker.com/reference/cli/docker/volume/
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