#!/usr/bin/env bash

set -o errexit -o nounset

TOP_DIR=$(cd "$(dirname "$0")/.." && pwd)

source "$TOP_DIR/config/paths"
source "$CONFIG_DIR/credentials"
source "$LIB_DIR/functions.guest.sh"

exec_logfile

indicate_current_auto

#------------------------------------------------------------------------------
# Set up Block Storage service controller (cinder controller node)
# http://docs.openstack.org/mitaka/install-guide-ubuntu/cinder-controller-install.html
#------------------------------------------------------------------------------

echo "Setting up database for cinder."
setup_database cinder "$CINDER_DB_USER" "$CINDER_DBPASS"

source "$CONFIG_DIR/admin-openstackrc.sh"

cinder_admin_user=$(service_to_user_name cinder)

# Wait for keystone to come up
wait_for_keystone

echo "Creating cinder user."
openstack user create \
    --domain default \
    --password "$CINDER_PASS" \
    "$cinder_admin_user"

echo "Linking cinder user, service tenant and admin role."
openstack role add \
    --project "$SERVICE_PROJECT_NAME" \
    --user "$cinder_admin_user" \
    "$ADMIN_ROLE_NAME"

echo "Registering cinder with keystone so that other services can locate it."
openstack service create \
    --name cinder \
    --description "OpenStack Block Storage" \
    volume

openstack service create \
    --name cinderv2 \
    --description "OpenStack Block Storage v2" \
    volumev2

openstack endpoint create \
    --region "$REGION" \
    volume public http://controller:8776/v1/%\(tenant_id\)s

openstack endpoint create \
    --region "$REGION" \
    volume internal http://controller:8776/v1/%\(tenant_id\)s

openstack endpoint create \
    --region "$REGION" \
    volume admin http://controller:8776/v1/%\(tenant_id\)s

openstack endpoint create \
    --region "$REGION" \
    volumev2 public http://controller:8776/v2/%\(tenant_id\)s

openstack endpoint create \
    --region "$REGION" \
    volumev2 internal http://controller:8776/v2/%\(tenant_id\)s

openstack endpoint create \
    --region "$REGION" \
    volumev2 admin http://controller:8776/v2/%\(tenant_id\)s

# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
# Install and configure cinder
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

echo "Installing cinder."
sudo apt-get install -y cinder-api cinder-scheduler \
    qemu-utils
# Note: The package 'qemu-utils' is required for 'qemu-img' which allows cinder
#       to convert additional image types to bootable volumes. By default only
#       raw images can be converted.

function get_database_url {
    local db_user=$CINDER_DB_USER
    local database_host=controller

    echo "mysql+pymysql://$db_user:$CINDER_DBPASS@$database_host/cinder"
}

database_url=$(get_database_url)

echo "Configuring cinder-api.conf."
conf=/etc/cinder/cinder.conf

echo "Setting database connection: $database_url."
iniset_sudo $conf database connection "$database_url"

# Configure [DEFAULT] section to use RabbitMQ message broker.
iniset_sudo $conf DEFAULT rpc_backend rabbit

iniset_sudo $conf oslo_messaging_rabbit rabbit_host controller
iniset_sudo $conf oslo_messaging_rabbit rabbit_userid openstack
iniset_sudo $conf oslo_messaging_rabbit rabbit_password "$RABBIT_PASS"

iniset_sudo $conf DEFAULT auth_strategy keystone

# Configure [keystone_authtoken] section.
iniset_sudo $conf keystone_authtoken auth_uri http://controller:5000
iniset_sudo $conf keystone_authtoken auth_url http://controller:35357
iniset_sudo $conf keystone_authtoken auth_type password
iniset_sudo $conf keystone_authtoken project_domain_name default
iniset_sudo $conf keystone_authtoken user_domain_name default
iniset_sudo $conf keystone_authtoken project_name "$SERVICE_PROJECT_NAME"
iniset_sudo $conf keystone_authtoken username "$cinder_admin_user"
iniset_sudo $conf keystone_authtoken password "$CINDER_PASS"

iniset_sudo $conf DEFAULT my_ip "$(hostname_to_ip controller)"

iniset_sudo $conf oslo_concurrency lock_path /var/lib/cinder/tmp

echo "Creating the database tables for cinder."
sudo cinder-manage db sync

echo "Configuring nova.conf"
conf=/etc/nova/nova.conf

iniset_sudo $conf cinder os_region_name "$REGION"

echo "Restart Compute API service."
sudo service nova-api restart

echo "Restarting cinder service."
sudo service cinder-scheduler restart
sudo service cinder-api restart

echo "Removing unused SQLite database file (if any)."
sudo rm -f /var/lib/cinder/cinder.sqlite