118 lines
3.8 KiB
Bash
Executable File
118 lines
3.8 KiB
Bash
Executable File
#!/bin/bash
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# Copyright (c) 2014 Cisco Systems Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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_NOVA_CONF_DIR="/etc/nova"
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_NOVA_CONF_FILE="nova.conf"
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_NOVA_DIR="/usr/lib/python2.7/dist-packages/nova"
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# if you did not make changes to the installation files,
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# please do not edit the following directories.
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_CODE_DIR="../nova"
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_BACKUP_DIR="${_NOVA_DIR}/.solver-scheduler-installation-backup"
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#_SCRIPT_NAME="${0##*/}"
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#_SCRIPT_LOGFILE="/var/log/nova-solver-scheduler/installation/${_SCRIPT_NAME}.log"
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if [[ ${EUID} -ne 0 ]]; then
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echo "Please run as root."
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exit 1
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fi
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##Redirecting output to logfile as well as stdout
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#exec > >(tee -a ${_SCRIPT_LOGFILE})
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#exec 2> >(tee -a ${_SCRIPT_LOGFILE} >&2)
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cd `dirname $0`
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echo "checking installation directories..."
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if [ ! -d "${_NOVA_DIR}" ] ; then
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echo "Could not find the nova installation. Please check the variables in the beginning of the script."
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echo "aborted."
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exit 1
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fi
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if [ ! -f "${_NOVA_CONF_DIR}/${_NOVA_CONF_FILE}" ] ; then
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echo "Could not find nova config file. Please check the variables in the beginning of the script."
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echo "aborted."
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exit 1
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fi
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echo "checking previous installation..."
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if [ -d "${_BACKUP_DIR}/nova" ] ; then
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echo "It seems nova-solver-scheduler has already been installed!"
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echo "Please check README for solution if this is not true."
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exit 1
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fi
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echo "backing up current files that might be overwritten..."
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mkdir -p "${_BACKUP_DIR}/nova"
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mkdir -p "${_BACKUP_DIR}/etc/nova"
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cp -r "${_NOVA_DIR}/scheduler" "${_BACKUP_DIR}/nova/" && cp -r "${_NOVA_DIR}/volume" "${_BACKUP_DIR}/nova/"
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if [ $? -ne 0 ] ; then
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rm -r "${_BACKUP_DIR}/nova"
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echo "Error in code backup, aborted."
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exit 1
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fi
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cp "${_NOVA_CONF_DIR}/${_NOVA_CONF_FILE}" "${_BACKUP_DIR}/etc/nova/"
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if [ $? -ne 0 ] ; then
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rm -r "${_BACKUP_DIR}/nova"
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rm -r "${_BACKUP_DIR}/etc"
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echo "Error in config backup, aborted."
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exit 1
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fi
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echo "copying in new files..."
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cp -r "${_CODE_DIR}" `dirname ${_NOVA_DIR}`
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if [ $? -ne 0 ] ; then
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echo "Error in copying, aborted."
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echo "Recovering original files..."
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cp -r "${_BACKUP_DIR}/nova" `dirname ${_NOVA_DIR}` && rm -r "${_BACKUP_DIR}/nova"
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if [ $? -ne 0 ] ; then
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echo "Recovering failed! Please install manually."
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fi
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exit 1
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fi
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echo "updating config file..."
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sed -i.backup -e "/scheduler_driver *=/d" "${_NOVA_CONF_DIR}/${_NOVA_CONF_FILE}"
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sed -i -e "/\[DEFAULT\]/a \\
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scheduler_driver=nova.scheduler.solver_scheduler.ConstraintSolverScheduler" "${_NOVA_CONF_DIR}/${_NOVA_CONF_FILE}"
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if [ $? -ne 0 ] ; then
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echo "Error in updating, aborted."
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echo "Recovering original files..."
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cp -r "${_BACKUP_DIR}/nova" `dirname ${_NOVA_DIR}` && rm -r "${_BACKUP_DIR}/nova"
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if [ $? -ne 0 ] ; then
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echo "Recovering /nova failed! Please install manually."
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fi
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cp "${_BACKUP_DIR}/etc/nova/${_NOVA_CONF_FILE}" "${_NOVA_CONF_DIR}" && rm -r "${_BACKUP_DIR}/etc"
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if [ $? -ne 0 ] ; then
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echo "Recovering config failed! Please install manually."
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fi
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exit 1
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fi
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echo "restarting nova scheduler..."
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service nova-scheduler restart
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if [ $? -ne 0 ] ; then
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echo "There was an error in restarting the service, please restart nova scheduler manually."
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exit 1
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fi
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echo "Completed."
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echo "See README to get started."
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exit 0
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