Generate iSCSI Initiator Name

generate-iscsi-initiatorname

#!/usr/bin/env bash
set -eu
INAME=/etc/iscsi/initiatorname.iscsi
InitiatorName=""

if [ -e ${INAME} ]; then
  . ${INAME}
  if [ "$InitiatorName" != "" ]; then
    # nothing to do.
    exit 0
  fi
  echo "WARN: The iSCSI initiator name is blank." >&2
  echo "WARN: Regenerate iSCSI initiator name and overwrite the file." >&2
fi

cat <<EOF > ${INAME}
## DO NOT EDIT OR REMOVE THIS FILE!
## If you remove this file, the iSCSI daemon will not start.
## If you change the InitiatorName, existing access control lists
## may reject this initiator.  The InitiatorName must be unique
## for each iSCSI initiator.  Do NOT duplicate iSCSI InitiatorNames.
InitiatorName=`/sbin/iscsi-iname -p iqn.1993-08.org.debian:01`
EOF

chown root:root ${INAME}
chmod 600 ${INAME}