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| author | Chad Smith <chad.smith@canonical.com> | 2018-11-08 04:35:56 +0000 |
|---|---|---|
| committer | Server Team CI Bot <josh.powers+server-team-bot@canonical.com> | 2018-11-08 04:35:56 +0000 |
| commit | 3b332c93f765c9208f7e059d8a0c2463f7ffe12a (patch) | |
| tree | ccff1df40c421cd67ed33a28b762c4754dde338e /udev/66-azure-ephemeral.rules | |
| parent | 093f968013f418d591d9e778a57b2f050ac30db3 (diff) | |
| download | vyos-cloud-init-3b332c93f765c9208f7e059d8a0c2463f7ffe12a.tar.gz vyos-cloud-init-3b332c93f765c9208f7e059d8a0c2463f7ffe12a.zip | |
azure: add udev rules to create cloud-init Gen2 disk name symlinks
Cloud-init delivers udev rules on Azure to create the following symlinks:
- /dev/disk/cloud/azure_root
- /dev/disk/cloud/azure_root-part#
- /dev/disk/cloud/azure_resource
- /dev/disk/cloud/azure_resource-part#
Cloud-init cc_disk_setup expects presence of these dev links in order to
setup the mounted ephemeral disks. Gen1 instances udev rules match based
only a DEVICE_ID attribute that no longer exists on Gen2 instances.
Supplement existing Gen1 rules with matches on specitic SCSI target/lun
path 0:0:0 and 0:0:1 and generate links for azure_root and azure_resource
respectively.
LP: #1797480
Diffstat (limited to 'udev/66-azure-ephemeral.rules')
| -rw-r--r-- | udev/66-azure-ephemeral.rules | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/udev/66-azure-ephemeral.rules b/udev/66-azure-ephemeral.rules index b9c5c3ef..3032f7e1 100644 --- a/udev/66-azure-ephemeral.rules +++ b/udev/66-azure-ephemeral.rules @@ -4,10 +4,26 @@ SUBSYSTEM!="block", GOTO="cloud_init_end" ATTRS{ID_VENDOR}!="Msft", GOTO="cloud_init_end" ATTRS{ID_MODEL}!="Virtual_Disk", GOTO="cloud_init_end" -# Root has a GUID of 0000 as the second value +# Root has a GUID of 0000 as the second value on Gen1 instances # The resource/resource has GUID of 0001 as the second value ATTRS{device_id}=="?00000000-0000-*", ENV{fabric_name}="azure_root", GOTO="ci_azure_names" ATTRS{device_id}=="?00000000-0001-*", ENV{fabric_name}="azure_resource", GOTO="ci_azure_names" + +# Azure well known SCSI controllers on Gen2 instances +ATTRS{device_id}=="{f8b3781a-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi0", GOTO="azure_datadisk" +# Do not create symlinks for scsi[1-3] or unmatched device_ids +ATTRS{device_id}=="{f8b3781b-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi1", GOTO="cloud_init_end" +ATTRS{device_id}=="{f8b3781c-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi2", GOTO="cloud_init_end" +ATTRS{device_id}=="{f8b3781d-1e82-4818-a1c3-63d806ec15bb}", ENV{fabric_scsi_controller}="scsi3", GOTO="cloud_init_end" +GOTO="cloud_init_end" + +# Map scsi#/lun# fabric_name to azure_root|resource on Gen2 instances +LABEL="azure_datadisk" +ENV{DEVTYPE}=="partition", PROGRAM="/bin/sh -c 'readlink /sys/class/block/%k/../device|cut -d: -f4'", ENV{fabric_name}="$env{fabric_scsi_controller}/lun$result" +ENV{DEVTYPE}=="disk", PROGRAM="/bin/sh -c 'readlink /sys/class/block/%k/device|cut -d: -f4'", ENV{fabric_name}="$env{fabric_scsi_controller}/lun$result" + +ENV{fabric_name}=="scsi0/lun0", ENV{fabric_name}="azure_root", GOTO="ci_azure_names" +ENV{fabric_name}=="scsi0/lun1", ENV{fabric_name}="azure_resource", GOTO="ci_azure_names" GOTO="cloud_init_end" # Create the symlinks |