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# Share a volume between two containers docker volume create shared-uploads # App container writes files to the volume docker run -d \ --name app \ -v shared-uploads:/app/uploads \ myapp:latest # Nginx container serves the same files (read-only) docker run -d \ --name nginx \ -p 80:80 \ -v shared-uploads:/usr/share/nginx/html/uploads:ro \ nginx:alpine # NFS-backed volume for multi-host sharing docker volume create \ --driver local \ --opt type=nfs \ --opt o=addr=192.168.1.100,rw,vers=4 \ --opt device=:/exports/appdata \ nfs-appdata docker run -d -v nfs-appdata:/data myapp:latest # List anonymous vs named volumes docker volume ls --filter "dangling=true" docker volume ls --filter "name=pgdata" # Remove unused volumes docker volume prune -f docker volume rm pgdata
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