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#!/bin/sh
set -e
die()
{
echo "$@" >&2
exit 1
}
die_with_file()
{
file="$1"
shift
echo "$@" >&2
echo "contents of $file:" >&2
cat "$file" >&2
exit 1
}
DEBIAN_FRONTEND=noninteractive apt-get -y install open-iscsi </dev/null
[ -d /etc/iscsi ] || die "/etc/iscsi not a directory"
# Make sure an initiator name was generated
[ -f /etc/iscsi/initiatorname.iscsi ] || die "/etc/iscsi/initiatorname.iscsi not a file"
grep -vq '^GenerateName=yes' /etc/iscsi/initiatorname.iscsi || die_with_file /etc/iscsi/initiatorname.iscsi "GenerateName=yes is set"
grep -q '^InitiatorName=' /etc/iscsi/initiatorname.iscsi || die_with_file /etc/iscsi/initiatorname.iscsi "InitiatorName is not set"
# Make sure the daemon is started
systemctl is-active iscsid.socket || die "iscsid socket not running"
# no-op discovery to socket activate service
iscsiadm -m discovery -t sendtargets -p 127.0.0.1 >/dev/null 2>&1|| /bin/true
systemctl is-active iscsid.service || die "iscsid service not running"
pgrep -c iscsid >/dev/null || die "iscsid process not running"
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