# supplemental storage links: /dev/disk/by-volume-type-partuuid
#
# The purpose of the additional links is to encode what kind of backing device
# the partition resides on, for cases where systemd units need this information
# for conditional logic.

ACTION=="remove", GOTO="supplemental_storage_end"
SUBSYSTEM!="block", GOTO="supplemental_storage_end"
ENV{DEVTYPE}!="partition", GOTO="supplemental_storage_end"

# Only these drivers have "interesting" volume types.
KERNEL!="nvme*|xvd*|vd*", GOTO="supplemental_storage_end"

# Set the volume type for each supported driver, annotating it with the volume
# sub-type, if any.
ENV{BOTTLEROCKET_VOLUME_TYPE}!="?*", KERNEL=="nvme*", ATTRS{model}=="Amazon EC2 NVMe Instance Storage*", ENV{BOTTLEROCKET_VOLUME_TYPE}="nvme-instance-store"
ENV{BOTTLEROCKET_VOLUME_TYPE}!="?*", KERNEL=="nvme*", ATTRS{model}=="Amazon Elastic Block Store*", ENV{BOTTLEROCKET_VOLUME_TYPE}="nvme-ebs"
ENV{BOTTLEROCKET_VOLUME_TYPE}!="?*", KERNEL=="nvme*", ENV{BOTTLEROCKET_VOLUME_TYPE}="nvme"
ENV{BOTTLEROCKET_VOLUME_TYPE}!="?*", KERNEL=="xvd*", ENV{BOTTLEROCKET_VOLUME_TYPE}="xen"
ENV{BOTTLEROCKET_VOLUME_TYPE}!="?*", KERNEL=="vd*", ENV{BOTTLEROCKET_VOLUME_TYPE}="virtio"

ENV{ID_PART_ENTRY_UUID}=="?*" SYMLINK+="disk/by-volume-type-partuuid/$env{BOTTLEROCKET_VOLUME_TYPE}-$env{ID_PART_ENTRY_UUID}"

LABEL="supplemental_storage_end"