Documentation
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Index ¶
- func Init(home string, options []string, idMap idtools.IdentityMapping) (graphdriver.Driver, error)
- type Driver
- func (d *Driver) ApplyDiff(id string, parent string, diff io.Reader) (size int64, err error)
- func (d *Driver) Changes(id, parent string) ([]archive.Change, error)
- func (d *Driver) Cleanup() error
- func (d *Driver) Create(id, parent string, opts *graphdriver.CreateOpts) (retErr error)
- func (d *Driver) CreateReadWrite(id, parent string, opts *graphdriver.CreateOpts) error
- func (d *Driver) Diff(id, parent string) (io.ReadCloser, error)
- func (d *Driver) DiffSize(id, parent string) (size int64, err error)
- func (d *Driver) Exists(id string) bool
- func (d *Driver) Get(id, mountLabel string) (_ string, retErr error)
- func (d *Driver) GetMetadata(id string) (map[string]string, error)
- func (d *Driver) Put(id string) error
- func (d *Driver) Remove(id string) error
- func (d *Driver) Status() [][2]string
- func (d *Driver) String() string
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func Init ¶
func Init(home string, options []string, idMap idtools.IdentityMapping) (graphdriver.Driver, error)
Init returns the naive diff driver for fuse-overlayfs. If fuse-overlayfs is not supported on the host, the error graphdriver.ErrNotSupported is returned.
Types ¶
type Driver ¶
type Driver struct {
// contains filtered or unexported fields
}
Driver contains information about the home directory and the list of active mounts that are created using this driver.
func (*Driver) Changes ¶
Changes produces a list of changes between the specified layer and its parent layer. If parent is "", then all changes will be ADD changes.
func (*Driver) Cleanup ¶
Cleanup any state created by overlay which should be cleaned when daemon is being shutdown. For now, we just have to unmount the bind mounted we had created.
func (*Driver) Create ¶
func (d *Driver) Create(id, parent string, opts *graphdriver.CreateOpts) (retErr error)
Create is used to create the upper, lower, and merge directories required for overlay fs for a given id. The parent filesystem is used to configure these directories for the overlay.
func (*Driver) CreateReadWrite ¶
func (d *Driver) CreateReadWrite(id, parent string, opts *graphdriver.CreateOpts) error
CreateReadWrite creates a layer that is writable for use as a container file system.
func (*Driver) Diff ¶
func (d *Driver) Diff(id, parent string) (io.ReadCloser, error)
Diff produces an archive of the changes between the specified layer and its parent layer which may be "".
func (*Driver) DiffSize ¶
DiffSize calculates the changes between the specified id and its parent and returns the size in bytes of the changes relative to its base filesystem directory.
func (*Driver) Get ¶
Get creates and mounts the required file system for the given id and returns the mount path.
func (*Driver) GetMetadata ¶
GetMetadata returns metadata about the overlay driver such as the LowerDir, UpperDir, WorkDir, and MergeDir used to store data.
func (*Driver) Put ¶
Put unmounts the mount path created for the give id. It also removes the 'merged' directory to force the kernel to unmount the overlay mount in other namespaces.
Source Files