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#!/bin/sh
#
# Copyright (C) 2014 Codethink Limited
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

set -e

# Create required system users and groups

getent group cinder >/dev/null || groupadd -r --gid 165 cinder
getent passwd cinder >/dev/null || \
	useradd --uid 165 -r -g cinder -d /var/lib/cinder -s /sbin/nologin \
	-c "OpenStack Cinder Daemons" cinder

# Create the keystone user and services

export OS_SERVICE_TOKEN=##KEYSTONE_TEMPORARY_ADMIN_TOKEN##
export OS_SERVICE_ENDPOINT='http://localhost:35357/v2.0'

keystone user-create --name ##CINDER_USER## --pass ##CINDER_PASSWORD##
keystone user-role-add --tenant service --user ##CINDER_USER## --role admin

# Register the Block Storage service with the Identity service so other OpenStack services
# can locate it
keystone service-create --name ##CINDER_USER## --type volume --description "OpenStack Block Storage"
keystone endpoint-create  --service-id $(keystone service-list | awk '/ volume / {print $2}') \
	    	          --publicurl ##CINDER_PUBLIC_URL## \
	                  --internalurl ##CINDER_INTERNAL_URL## \
	                  --adminurl ##CINDER_ADMIN_URL##

# Register a service and endpoint for version 2 of the Block Storage service API
keystone service-create --name ##CINDER_USER_V2## \
	                --type volumev2 --description "OpenStack Block Storage"
keystone endpoint-create  --service-id $(keystone service-list | awk '/ volumev2 / {print $2}') \
	    	          --publicurl ##CINDER_PUBLIC_URL_V2## \
	                  --internalurl ##CINDER_INTERNAL_URL_V2## \
	                  --adminurl ##CINDER_ADMIN_URL_V2##

# Create run directory for cinder
if [ ! -d /var/run/cinder ]; then
    mkdir -p /var/run/cinder
    chown -R cinder:cinder /var/run/cinder
fi

# Create the lock directory for cinder
if [ ! -d /var/lock/cinder ]; then
    mkdir -p /var/lock/cinder
    chown -R cinder:cinder /var/lock/cinder
fi

# Create the log directory for cinder
if [ ! -d /var/log/cinder ]; then
    mkdir -p /var/log/cinder
    chown -R cinder:cinder /var/log/cinder
fi

# Setup the cinder database
if [ ! -e /var/lib/cinder/cinder.sqlite ]; then
    chown -R cinder:cinder /var/lib/cinder
    sudo -u cinder cinder-manage db sync
fi

# Create the volumes directory for cinder
if [ ! -d /var/lib/cinder/volumes ]; then
    mkdir -p /var/lib/cinder/volumes
    chown -R cinder:cinder /var/lib/cinder/volumes
fi

# This is only for testing purposes and we need to change it for
# something more robust to deploy in production.
# This also assumes that the user will add a second disk to its VM
# and if it does not find sdb or vda it will fail.
if [ $(ls /sys/block | grep -v sda | grep [vs]d | wc -l) -ne 1 ]; then
  echo "Error: More than one or none block device found, cinder will not be able to create a VG."
  exit 1
else
  device=/dev/$(ls /sys/block | grep -v sda | grep [vs]d)
fi

# Create a physical volume
pvcreate -ff -y $device

# Create a volume group named "cinder-volumes"
vgcreate -y cinder-volumes $device

# Remove the one-shot setup service
rm /etc/systemd/system/multi-user.target.wants/openstack-cinder-setup.service

# Start cinder services
systemctl start openstack-cinder-api
systemctl start openstack-cinder-scheduler
systemctl start openstack-cinder-volume
systemctl start openstack-cinder-backup

# Create the links to run nova services when system start next times.
ln -s "/etc/systemd/system/openstack-cinder-api.service" \
    "/etc/systemd/system/multi-user.target.wants/openstack-cinder-api.service"

ln -s "/etc/systemd/system/openstack-cinder-scheduler.service" \
    "/etc/systemd/system/multi-user.target.wants/openstack-cinder-scheduler.service"

ln -s "/etc/systemd/system/openstack-cinder-volume.service" \
    "/etc/systemd/system/multi-user.target.wants/openstack-cinder-volume.service"

ln -s "/etc/systemd/system/openstack-cinder-backup.service" \
    "/etc/systemd/system/multi-user.target.wants/openstack-cinder-backup.service"

exit 0