I’m struggling to understand how to fully exploit the capabilities of targetcli
using the Pacemaker resource agent for iSCSILogicalUnit. From this block of
code:
lio-t)
# For lio, we first have to create a target device, then
# add it to the Target Portal Group as an LU.
ocf_run targetcli /backstores/block create
name=${OCF_RESOURCE_INSTANCE} dev=${OCF_RESKEY_path} || exit $OCF_ERR_GENERIC
if [ -n "${OCF_RESKEY_scsi_sn}" ]; then
echo ${OCF_RESKEY_scsi_sn} >
/sys/kernel/config/target/core/iblock_${OCF_RESKEY_lio_iblock}/${OCF_RESOURCE_INSTANCE}/wwn/vpd_unit_serial
fi
ocf_run targetcli /iscsi/${OCF_RESKEY_target_iqn}/tpg1/luns
create /backstores/block/${OCF_RESOURCE_INSTANCE} ${OCF_RESKEY_lun} || exit
$OCF_ERR_GENERIC
if [ -n "${OCF_RESKEY_allowed_initiators}" ]; then
for initiator in ${OCF_RESKEY_allowed_initiators}; do
ocf_run targetcli
/iscsi/${OCF_RESKEY_target_iqn}/tpg1/acls create ${initiator}
add_mapped_luns=False || exit $OCF_ERR_GENERIC
ocf_run targetcli
/iscsi/${OCF_RESKEY_target_iqn}/tpg1/acls/${initiator} create ${OCF_RESKEY_lun}
${OCF_RESKEY_lun} || exit $OCF_ERR_GENERIC
done
fi
;;
it looks like I’m only permitted to create a block backstore. Critically
missing, in this scenario, is the ability to create fileio backstores on things
like mounted filesystems abstracted by things like drbd. Additionally (and this
is just a failing on my part), I’m unclear as to where the resource agent is
fed the value for “${OCF_RESOURCE_INSTANCE}” given the limited number of
parameters one is permitted to supply with “pcs resource create…”
Can anyone provide any insight please? Thank you in advance!
--
[ jR ]
@: [email protected]
there is no path to greatness; greatness is the path
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