Class: Uricp::Strategy::RbdSnap

Inherits:
Object
  • Object
show all
Includes:
CacheCommon, Common
Defined in:
lib/uricp/strategy/rbd_snap.rb

Constant Summary

Constants included from Common

Common::DRY_SNAP, Common::PIPE_URI, Common::VOL_REGEX

Instance Attribute Summary

Attributes included from Common

#proposed_options

Attributes included from CurlPrimitives

#options

Instance Method Summary collapse

Methods included from CacheCommon

#cache_exists?, #cache_file, #cache_name, #cache_root, #in_cache?, #temp_cache_file, #temp_cache_uri, #validate_cache!, #with_active_cache, #without_active_cache

Methods included from Common

#all_local_files?, #always_write_sparse?, #compression_required?, #conversion_required?, #dry_run?, #encoding, #file_source?, #format_change?, #get_temp_filename, #in_rbd_cache, #in_rbd_cache?, #initialize, #lz4?, #lz4_source?, #not_in_rbd_cache?, #proposed_path, #qcow2?, #raw_target?, #rbd_base_name, #rbd_cache_image_exists?, #rbd_cache_image_spec, #rbd_cache_name, #rbd_cache_upload_available?, #rbd_clone_snapshot, #rbd_id, #rbd_image_spec, #rbd_sequence_complete?, #rbd_snapshot_name, #rbd_snapshot_spec?, #rbd_uri, #segmented?, #sequence_complete?, #snap_check, #supported_source?, #temp_uri, #unsupported_transfer

Methods included from CurlPrimitives

#authentication, #curl_command, #curl_download_to_pipe, #curl_manifest, #curl_upload_from, #from, #from=, #http_authentication?, #to, #to=

Instance Method Details

#appropriate? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/uricp/strategy/rbd_snap.rb', line 9

def appropriate?
  without_active_cache do
    if from.scheme == 'rbd' &&
       options['rbd_snapshot'].nil? &&
       !rbd_snapshot_spec?(from) &&
       (rbd_cache_name.nil? ||
         !from.path.include?(rbd_cache_name))
      if snap_in_progress?
        debug "#{self.class.name}: detected snapshot in progress"
      else
        return proposal unless sequence_complete?
      end
    end
  end
  debug "#{self.class.name}: not appropriate"
  false
end

#command ⇒ Object 



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# File 'lib/uricp/strategy/rbd_snap.rb', line 27

def command
  "rbd snap create --id #{rbd_id} '#{rbd_upload_snapshot(from)}';" \
  "rbd snap protect --id #{rbd_id} '#{rbd_upload_snapshot(from)}';" \
end

#proposal ⇒ Object 



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# File 'lib/uricp/strategy/rbd_snap.rb', line 32

def proposal
  @proposed_options = options.dup
  @proposed_options['from_uri'] = rbd_uri(rbd_upload_snapshot(from))
  if options['rbd_cache_target']
    @proposed_options['to_uri'] = options['rbd_cache_target']
    @proposed_options['rbd_cache_target'] = to
  else
    @proposed_options['rbd_snapshot'] = rbd_upload_snapshot(from) unless to.scheme == 'rbd'
  end
  self
end

#rbd_upload_snapshot(uri) ⇒ Object 



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# File 'lib/uricp/strategy/rbd_snap.rb', line 44

def rbd_upload_snapshot(uri)
  "#{rbd_image_spec(uri)}@#{rbd_snapshot_name}"
end

#snap_in_progress? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/uricp/strategy/rbd_snap.rb', line 48

def snap_in_progress?
  return false if dry_run?
  snap_check(rbd_image_spec(from), rbd_snapshot_name)
end