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F #4393: move get_disk_information to library
This commit is contained in:
Javi Fontan
parent
256b1dc39d
commit
bbb3466b44
@ -612,3 +612,194 @@ function get_source_xml {
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echo "$SOURCE_HOST"
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}
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# This function extracts information about a disk. The first parameter
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# is a string with the filter for disks, for example, to get the disk
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# that's going to be attached use:
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#
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# get_disk_information "ATTACH=YES"
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#
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# To get an specific disk ID use:
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#
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# get_disk_information "DISK_ID=$DISK_ID"
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#
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# The variables set are as follows:
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#
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# * VMID
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# * DRIVER
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# * TYPE
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# * READONLY
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# * CACHE
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# * DISCARD
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# * IMG_SRC
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# * DISK_ID
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# * CLONE
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# * CEPH_HOST
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# * CEPH_SECRET
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# * CEPH_USER
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# * ISCSI_HOST
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# * ISCSI_USAGE
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# * ISCSI_USER
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# * ISCSI_IQN
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# * DISK_TYPE
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# * POOL_NAME
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# * SIZE
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# * DISK_TARGET
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# * TYPE_SOURCE: libvirt xml source name. $TYPE_SOURCE=$SOURCE => file=/my/path
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# * SOURCE: disk source, can be path, ceph pool/image, device...
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# * TYPE_XML
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# * DEVICE
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# * SOURCE_ARGS: ex. protocol='rbd'
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# * SOURCE_HOST
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# * AUTH: auth xml for libvirt
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#
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# This function was originaly in attach_disk action
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function get_disk_information {
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FILTER="$1"
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DRIVER_PATH=$(dirname $0)
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XPATH="${DRIVER_PATH}/../../datastore/xpath.rb"
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CMD="$XPATH -b $DRV_ACTION"
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unset i j XPATH_ELEMENTS
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DISK_XPATH="/VMM_DRIVER_ACTION_DATA/VM/TEMPLATE/DISK[$FILTER]"
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while IFS= read -r -d '' element; do
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XPATH_ELEMENTS[i++]="$element"
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done < <($CMD /VMM_DRIVER_ACTION_DATA/VM/ID \
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$DISK_XPATH/DRIVER \
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$DISK_XPATH/TYPE \
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$DISK_XPATH/READONLY \
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$DISK_XPATH/CACHE \
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$DISK_XPATH/DISCARD \
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$DISK_XPATH/SOURCE \
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$DISK_XPATH/DISK_ID \
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$DISK_XPATH/CLONE \
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$DISK_XPATH/CEPH_HOST \
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$DISK_XPATH/CEPH_SECRET \
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$DISK_XPATH/CEPH_USER \
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$DISK_XPATH/ISCSI_HOST \
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$DISK_XPATH/ISCSI_USAGE \
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$DISK_XPATH/ISCSI_USER \
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$DISK_XPATH/ISCSI_IQN \
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$DISK_XPATH/DISK_TYPE \
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$DISK_XPATH/POOL_NAME \
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$DISK_XPATH/SIZE \
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$DISK_XPATH/TARGET)
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VMID="${XPATH_ELEMENTS[j++]}"
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DRIVER="${XPATH_ELEMENTS[j++]:-$DEFAULT_TYPE}"
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TYPE="${XPATH_ELEMENTS[j++]}"
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READONLY="${XPATH_ELEMENTS[j++]}"
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CACHE="${XPATH_ELEMENTS[j++]}"
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DISCARD="${XPATH_ELEMENTS[j++]}"
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IMG_SRC="${XPATH_ELEMENTS[j++]}"
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DISK_ID="${XPATH_ELEMENTS[j++]}"
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CLONE="${XPATH_ELEMENTS[j++]}"
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CEPH_HOST="${XPATH_ELEMENTS[j++]}"
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CEPH_SECRET="${XPATH_ELEMENTS[j++]}"
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CEPH_USER="${XPATH_ELEMENTS[j++]}"
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ISCSI_HOST="${XPATH_ELEMENTS[j++]}"
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ISCSI_USAGE="${XPATH_ELEMENTS[j++]}"
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ISCSI_USER="${XPATH_ELEMENTS[j++]}"
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ISCSI_IQN="${XPATH_ELEMENTS[j++]}"
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DISK_TYPE="${XPATH_ELEMENTS[j++]}"
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POOL_NAME="${XPATH_ELEMENTS[j++]}"
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SIZE="${XPATH_ELEMENTS[j++]}"
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DISK_TARGET="${XPATH_ELEMENTS[j++]}"
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TYPE=$(echo "$TYPE"|tr A-Z a-z)
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NAME="$SOURCE"
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case "$TYPE" in
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block)
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TYPE_SOURCE="dev"
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TYPE_XML="block"
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DEVICE="disk"
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;;
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iscsi)
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TYPE_SOURCE="name"
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TYPE_XML="network"
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DEVICE="disk"
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if [ -n "$ISCSI_IQN" ]; then
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SOURCE="${ISCSI_IQN}"
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else
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SOURCE="${IMG_SRC}"
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fi
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SOURCE_ARGS="protocol='iscsi'"
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SOURCE_HOST=$(get_source_xml $ISCSI_HOST)
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if [ -n "$ISCSI_USAGE" -a -n "$ISCSI_USER" ]; then
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AUTH="<auth username='$ISCSI_USER'>\
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<secret type='iscsi' usage='$ISCSI_USAGE'/>\
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</auth>"
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fi
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;;
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cdrom)
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TYPE_SOURCE="file"
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TYPE_XML="file"
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DEVICE="cdrom"
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;;
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rbd*)
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TYPE_SOURCE="protocol"
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TYPE_XML="network"
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SOURCE="rbd"
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if [ "$TYPE" = "rbd_cdrom" ]; then
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DEVICE="cdrom"
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else
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DEVICE="disk"
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fi
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if [ "$CLONE" = "YES" ]; then
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SOURCE="${IMG_SRC}-${VMID}-${DISK_ID}"
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else
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SOURCE="${IMG_SRC}"
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fi
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SOURCE_ARGS="protocol='rbd'"
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SOURCE_HOST=$(get_source_xml $CEPH_HOST)
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if [ -n "$CEPH_USER" -a -n "$CEPH_SECRET" ]; then
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AUTH="<auth username='$CEPH_USER'>\
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<secret type='ceph' uuid='$CEPH_SECRET'/>\
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</auth>"
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fi
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;;
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*)
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#NOTE: This includes TYPE=FS and TYPE=SWAP
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case "$DISK_TYPE" in
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RBD)
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TYPE_SOURCE="name"
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TYPE_XML="network"
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DEVICE="disk"
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SOURCE="${POOL_NAME}/one-sys-${VMID}-${DISK_ID}"
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NAME="${RBD_SOURCE}"
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SOURCE_ARGS="protocol='rbd'"
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SOURCE_HOST=$(get_source_xml $CEPH_HOST)
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if [ -n "$CEPH_USER" -a -n "$CEPH_SECRET" ]; then
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AUTH="<auth username='$CEPH_USER'>\
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<secret type='ceph' uuid='$CEPH_SECRET'/>\
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</auth>"
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fi
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;;
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*)
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TYPE_SOURCE="file"
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TYPE_XML="file"
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DEVICE="disk"
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;;
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esac
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;;
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esac
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}
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@ -19,8 +19,6 @@
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source $(dirname $0)/kvmrc
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source $(dirname $0)/../../scripts_common.sh
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DRIVER_PATH=$(dirname $0)
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DEFAULT_TYPE="raw"
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DOMAIN="$1"
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@ -31,140 +29,7 @@ DRV_ACTION="$5"
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ATTACH_FILE="$SOURCE.attach"
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XPATH="${DRIVER_PATH}/../../datastore/xpath.rb -b $DRV_ACTION"
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unset i j XPATH_ELEMENTS
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DISK_XPATH="/VMM_DRIVER_ACTION_DATA/VM/TEMPLATE/DISK[ATTACH='YES']"
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while IFS= read -r -d '' element; do
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XPATH_ELEMENTS[i++]="$element"
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done < <($XPATH /VMM_DRIVER_ACTION_DATA/VM/ID \
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$DISK_XPATH/DRIVER \
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$DISK_XPATH/TYPE \
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$DISK_XPATH/READONLY \
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$DISK_XPATH/CACHE \
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$DISK_XPATH/DISCARD \
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$DISK_XPATH/SOURCE \
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$DISK_XPATH/DISK_ID \
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$DISK_XPATH/CLONE \
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$DISK_XPATH/CEPH_HOST \
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$DISK_XPATH/CEPH_SECRET \
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$DISK_XPATH/CEPH_USER \
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$DISK_XPATH/ISCSI_HOST \
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$DISK_XPATH/ISCSI_USAGE \
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$DISK_XPATH/ISCSI_USER \
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$DISK_XPATH/ISCSI_IQN \
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$DISK_XPATH/DISK_TYPE \
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$DISK_XPATH/POOL_NAME)
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VMID="${XPATH_ELEMENTS[j++]}"
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DRIVER="${XPATH_ELEMENTS[j++]:-$DEFAULT_TYPE}"
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TYPE="${XPATH_ELEMENTS[j++]}"
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READONLY="${XPATH_ELEMENTS[j++]}"
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CACHE="${XPATH_ELEMENTS[j++]}"
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DISCARD="${XPATH_ELEMENTS[j++]}"
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IMG_SRC="${XPATH_ELEMENTS[j++]}"
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DISK_ID="${XPATH_ELEMENTS[j++]}"
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CLONE="${XPATH_ELEMENTS[j++]}"
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CEPH_HOST="${XPATH_ELEMENTS[j++]}"
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CEPH_SECRET="${XPATH_ELEMENTS[j++]}"
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CEPH_USER="${XPATH_ELEMENTS[j++]}"
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ISCSI_HOST="${XPATH_ELEMENTS[j++]}"
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ISCSI_USAGE="${XPATH_ELEMENTS[j++]}"
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ISCSI_USER="${XPATH_ELEMENTS[j++]}"
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ISCSI_IQN="${XPATH_ELEMENTS[j++]}"
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DISK_TYPE="${XPATH_ELEMENTS[j++]}"
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POOL_NAME="${XPATH_ELEMENTS[j++]}"
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TYPE=$(echo "$TYPE"|tr A-Z a-z)
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case "$TYPE" in
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block)
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TYPE_SOURCE="dev"
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TYPE_XML="block"
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DEVICE="disk"
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;;
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iscsi)
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TYPE_SOURCE="protocol"
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TYPE_XML="network"
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SOURCE="iscsi"
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DEVICE="disk"
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if [ -n "$ISCSI_IQN" ]; then
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SOURCE_ARGS="name='${ISCSI_IQN}'"
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else
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SOURCE_ARGS="name='${IMG_SRC}'"
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fi
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SOURCE_HOST=$(get_source_xml $ISCSI_HOST)
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if [ -n "$ISCSI_USAGE" -a -n "$ISCSI_USER" ]; then
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AUTH="<auth username='$ISCSI_USER'>\
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<secret type='iscsi' usage='$ISCSI_USAGE'/>\
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</auth>"
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fi
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;;
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cdrom)
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TYPE_SOURCE="file"
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TYPE_XML="file"
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DEVICE="cdrom"
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;;
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rbd*)
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TYPE_SOURCE="protocol"
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TYPE_XML="network"
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SOURCE="rbd"
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if [ "$TYPE" = "rbd_cdrom" ]; then
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DEVICE="cdrom"
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else
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DEVICE="disk"
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fi
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if [ "$CLONE" = "YES" ]; then
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SOURCE_ARGS="name='${IMG_SRC}-${VMID}-${DISK_ID}'"
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else
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SOURCE_ARGS="name='${IMG_SRC}'"
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fi
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SOURCE_HOST=$(get_source_xml $CEPH_HOST)
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if [ -n "$CEPH_USER" -a -n "$CEPH_SECRET" ]; then
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AUTH="<auth username='$CEPH_USER'>\
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<secret type='ceph' uuid='$CEPH_SECRET'/>\
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</auth>"
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fi
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;;
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*)
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#NOTE: This includes TYPE=FS and TYPE=SWAP
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case "$DISK_TYPE" in
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RBD)
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TYPE_SOURCE="protocol"
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TYPE_XML="network"
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SOURCE="rbd"
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DEVICE="disk"
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RBD_SOURCE="${POOL_NAME}/one-sys-${VMID}-${DISK_ID}"
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SOURCE_ARGS="name='${RBD_SOURCE}'"
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SOURCE_HOST=$(get_source_xml $CEPH_HOST)
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if [ -n "$CEPH_USER" -a -n "$CEPH_SECRET" ]; then
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AUTH="<auth username='$CEPH_USER'>\
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<secret type='ceph' uuid='$CEPH_SECRET'/>\
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</auth>"
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fi
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;;
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*)
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TYPE_SOURCE="file"
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TYPE_XML="file"
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DEVICE="disk"
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;;
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esac
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;;
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esac
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get_disk_information "ATTACH='YES'"
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[ -z "$CACHE" ] && [ -n "$DEFAULT_ATTACH_CACHE" ] && \
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CACHE="$DEFAULT_ATTACH_CACHE"
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