dotcloud/docker

package zfs // import "github.com/docker/docker/daemon/graphdriver/zfs"

import (
    "context"

    "github.com/containerd/log"
    "github.com/docker/docker/daemon/graphdriver"
    "github.com/docker/docker/daemon/internal/fstype"
)

func checkRootdirFs(rootDir string) error {
    fsMagic, err := fstype.GetFSMagic(rootDir)
    if err != nil {
        return err
    }
    backingFS := "unknown"
    if fsName, ok := fstype.FsNames[fsMagic]; ok {
        backingFS = fsName
    }

    if fsMagic != fstype.FsMagicZfs {
        log.G(context.TODO()).WithField("root", rootDir).WithField("backingFS", backingFS).WithField("storage-driver", "zfs").Error("No zfs dataset found for root")
        return graphdriver.ErrPrerequisites
    }

    return nil
}

func getMountpoint(id string) string {
    return id
}