#!/bin/bash
#
# Copyright © 2015 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

ROOT="$1"

MANDATORY_OPTIONS="SWIFT_ADMIN_URL SWIFT_ADMIN_PASSWORD SWIFT_INTERNAL_URL
SWIFT_PUBLIC_URL SWIFT_PART_POWER SWIFT_REPLICAS SWIFT_MIN_PART_HOURS
SWIFT_STORAGE_DEVICES MANAGEMENT_INTERFACE_IP_ADDRESS SWIFT_HASH_PATH_PREFIX SWIFT_HASH_PATH_SUFFIX
STACK_ID KEYSTONE_TEMPORARY_ADMIN_TOKEN NOVA_REGION KEYSTONE_INTERNAL_URL"

for option in $MANDATORY_OPTIONS
do
    if ! [[ -v $option ]]
    then
        missing_option=True
        echo "Required option $option isn't set!" >&2
    fi
done

if [[ "$missing_option" = True ]]; then exit 1; fi

./swift-storage-devices-validate.py "$SWIFT_STORAGE_DEVICES"

if [[ "$SWIFT_CONTROLLER" = True ]]
then
    ln -s "/usr/lib/systemd/system/openstack-swift-controller-setup.service" \
        "$ROOT/usr/lib/systemd/system/multi-user.target.wants/openstack-swift-controller-setup.service"
    ln -s "/usr/lib/systemd/system/memcached.service" \
        "$ROOT/usr/lib/systemd/system/multi-user.target.wants/memcached.service"
    ln -s "/usr/lib/systemd/system/openstack-swift-proxy.service" \
        "$ROOT/usr/lib/systemd/system/multi-user.target.wants/openstack-swift-proxy.service"
fi

if [[ "$SWIFT_STORAGE" = True ]]
then
    ln -s "/usr/lib/systemd/system/rsync.service" \
        "$ROOT/usr/lib/systemd/system/multi-user.target.wants/rsync.service"
    ln -s "/usr/lib/systemd/system/openstack-swift-storage.service" \
        "$ROOT/usr/lib/systemd/system/multi-user.target.wants/openstack-swift-storage.service"
    ln -s "/usr/lib/systemd/system/openstack-swift-storage-setup.service" \
        "$ROOT/usr/lib/systemd/system/multi-user.target.wants/openstack-swift-storage-setup.service"
fi

cat << EOF > "$ROOT"/usr/share/openstack/swift-vars.yml
---
STACK_ID: $STACK_ID
KEYSTONE_INTERNAL_URL: $KEYSTONE_INTERNAL_URL
KEYSTONE_TEMPORARY_ADMIN_TOKEN: $KEYSTONE_TEMPORARY_ADMIN_TOKEN
SWIFT_ADMIN_PASSWORD: $SWIFT_ADMIN_PASSWORD
MANAGEMENT_INTERFACE_IP_ADDRESS: $MANAGEMENT_INTERFACE_IP_ADDRESS
SWIFT_ADMIN_URL: $SWIFT_ADMIN_URL
SWIFT_INTERNAL_URL: $SWIFT_INTERNAL_URL
SWIFT_PUBLIC_URL: $SWIFT_PUBLIC_URL
SWIFT_PART_POWER: $SWIFT_PART_POWER
SWIFT_REPLICAS: $SWIFT_REPLICAS
SWIFT_MIN_PART_HOURS: $SWIFT_MIN_PART_HOURS
SWIFT_STORAGE_DEVICES: $SWIFT_STORAGE_DEVICES
SWIFT_HASH_PATH_PREFIX: $SWIFT_HASH_PATH_PREFIX
SWIFT_HASH_PATH_SUFFIX: $SWIFT_HASH_PATH_SUFFIX
NOVA_REGION: $NOVA_REGION
EOF