/share/examples/hast/ucarp_up.sh

  1#!/bin/sh
  2#
  3# Copyright (c) 2010 The FreeBSD Foundation
  4# All rights reserved.
  5#
  6# This software was developed by Pawel Jakub Dawidek under sponsorship from
  7# the FreeBSD Foundation.
  8#
  9# Redistribution and use in source and binary forms, with or without
 10# modification, are permitted provided that the following conditions
 11# are met:
 12# 1. Redistributions of source code must retain the above copyright
 13#    notice, this list of conditions and the following disclaimer.
 14# 2. Redistributions in binary form must reproduce the above copyright
 15#    notice, this list of conditions and the following disclaimer in the
 16#    documentation and/or other materials provided with the distribution.
 17#
 18# THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
 19# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 20# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 21# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
 22# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 23# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 24# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 25# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 26# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 27# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 28# SUCH DAMAGE.
 29#
 30# $FreeBSD$
 31
 32# Resource name as defined in /etc/hast.conf.
 33resource="test"
 34# Supported file system types: UFS, ZFS
 35fstype="UFS"
 36# ZFS pool name. Required only when fstype == ZFS.
 37pool="test"
 38# File system mount point. Required only when fstype == UFS.
 39mountpoint="/mnt/test"
 40# Name of HAST provider as defined in /etc/hast.conf.
 41device="/dev/hast/${resource}"
 42
 43export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
 44
 45# If there is secondary worker process, it means that remote primary process is
 46# still running. We have to wait for it to terminate.
 47for i in `jot 30`; do
 48	pgrep -f "hastd: ${resource} \(secondary\)" >/dev/null 2>&1 || break
 49	sleep 1
 50done
 51if pgrep -f "hastd: ${resource} \(secondary\)" >/dev/null 2>&1; then
 52	logger -p local0.error -t hast "Secondary process for resource ${resource} is still running after 30 seconds."
 53	exit 1
 54fi
 55logger -p local0.debug -t hast "Secondary process in not running."
 56
 57# Change role to primary for our resource.
 58out=`hastctl role primary "${resource}" 2>&1`
 59if [ $? -ne 0 ]; then
 60	logger -p local0.error -t hast "Unable to change to role to primary for resource ${resource}: ${out}."
 61	exit 1
 62fi
 63# Wait few seconds for provider to appear.
 64for i in `jot 50`; do
 65	[ -c "${device}" ] && break
 66	sleep 0.1
 67done
 68if [ ! -c "${device}" ]; then
 69	logger -p local0.error -t hast "Device ${device} didn't appear."
 70	exit 1
 71fi
 72logger -p local0.debug -t hast "Role for resource ${resource} changed to primary."
 73
 74case "${fstype}" in
 75UFS)
 76	# Check the file system.
 77	fsck -y -t ufs "${device}" >/dev/null 2>&1
 78	if [ $? -ne 0 ]; then
 79		logger -p local0.error -t hast "File system check for resource ${resource} failed."
 80		exit 1
 81	fi
 82	logger -p local0.debug -t hast "File system check for resource ${resource} finished."
 83	# Mount the file system.
 84	out=`mount -t ufs "${device}" "${mountpoint}" 2>&1`
 85	if [ $? -ne 0 ]; then
 86		logger -p local0.error -t hast "File system mount for resource ${resource} failed: ${out}."
 87		exit 1
 88	fi
 89	logger -p local0.debug -t hast "File system for resource ${resource} mounted."
 90	;;
 91ZFS)
 92	# Import ZFS pool. Do it forcibly as it remembers hostid of
 93	# the other cluster node.
 94	out=`zpool import -f "${pool}" 2>&1`
 95	if [ $? -ne 0 ]; then
 96		logger -p local0.error -t hast "ZFS pool import for resource ${resource} failed: ${out}."
 97		exit 1
 98	fi
 99	logger -p local0.debug -t hast "ZFS pool for resource ${resource} imported."
100	;;
101esac
102
103logger -p local0.info -t hast "Successfully switched to primary for resource ${resource}."
104
105exit 0