/lib/udev/rules.d/65-gce-disk-naming.rules is in gce-compute-image-packages 20180129+dfsg1-0ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 | # Copyright 2016 Google Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Name the attached disks as the specified by deviceName.
ACTION!="add|change", GOTO="gce_disk_naming_end"
SUBSYSTEM!="block", GOTO="gce_disk_naming_end"
KERNEL=="sd*|vd*", IMPORT{program}="scsi_id --export --whitelisted -d $tempnode"
KERNEL=="sd*|vd*", ENV{ID_SERIAL_SHORT}=="?*", ENV{DEVTYPE}=="disk", SYMLINK+="disk/by-id/google-$env{ID_SERIAL_SHORT}"
KERNEL=="sd*|vd*", ENV{ID_SERIAL_SHORT}=="?*", ENV{DEVTYPE}=="partition", SYMLINK+="disk/by-id/google-$env{ID_SERIAL_SHORT}-part%n"
LABEL="gce_disk_naming_end"
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