github.com/niedbalski/juju@v0.0.0-20190215020005-8ff100488e47/apiserver/facades/agent/storageprovisioner/internal/filesystemwatcher/backend.go (about)

     1  // Copyright 2017 Canonical Ltd.
     2  // Licensed under the AGPLv3, see LICENCE file for details.
     3  
     4  package filesystemwatcher
     5  
     6  import (
     7  	"gopkg.in/juju/names.v2"
     8  
     9  	"github.com/juju/juju/state"
    10  )
    11  
    12  // Backend provides access to filesystems and volumes for the
    13  // filesystem watchers to use.
    14  type Backend interface {
    15  	Filesystem(names.FilesystemTag) (state.Filesystem, error)
    16  	VolumeAttachment(names.Tag, names.VolumeTag) (state.VolumeAttachment, error)
    17  	WatchMachineFilesystems(names.MachineTag) state.StringsWatcher
    18  	WatchUnitFilesystems(tag names.ApplicationTag) state.StringsWatcher
    19  	WatchMachineFilesystemAttachments(names.MachineTag) state.StringsWatcher
    20  	WatchUnitFilesystemAttachments(names.ApplicationTag) state.StringsWatcher
    21  	WatchModelFilesystems() state.StringsWatcher
    22  	WatchModelFilesystemAttachments() state.StringsWatcher
    23  	WatchModelVolumeAttachments() state.StringsWatcher
    24  }