274 lines
7.0 KiB
Bash
274 lines
7.0 KiB
Bash
#! /bin/bash
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#
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# Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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# MySQL Database start/stop script
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# chkconfig: - 64 36
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# description: MySQL Database
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# processname: mysqld
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# config: /etc/my.cnf
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# pidfile: /var/run/mysql/mysqld.pid
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# Comments to support LSB init script conventions
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### BEGIN INIT INFO
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# Provides: mysql
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# Required-Start: $network $remote_fs
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# Required-Stop: $network $remote_fs
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# Default-Start: 3 5
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# Default-Stop: 0 1 6
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# Short-Description: MySQL Database
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# Description: MySQL Database
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### END INIT INFO
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#
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# https://en.opensuse.org/openSUSE:Packaging_init_scripts#Exit_Status_Codes
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#
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[ -e /etc/rc.status ] && . /etc/rc.status
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rc_reset
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STARTTIMEOUT=180
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STOPTIMEOUT=600
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PROG=/usr/bin/mysqld_safe
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[ -e /etc/sysconfig/mysql ] && . /etc/sysconfig/mysql
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# Lock directory
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lockfile=/var/lock/subsys/mysql
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# Support for extra options passed to mysqld
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command=$1 && shift
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extra_opts="$@"
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get_option () {
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local option=$1
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local default=$2
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shift 2
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ret=$(/usr/bin/my_print_defaults "$@" | sed -n "s/^--${option}=//p" | tail -n 1)
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[ -z $ret ] && ret=${default}
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echo $ret
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}
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datadir=$(get_option datadir "/var/lib/mysql" mysqld)
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socket=$(get_option socket "$datadir/mysql.sock" mysqld)
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pidfile=$(get_option pid-file "/var/run/mysql/mysqld.pid" mysqld mysqld_safe)
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install_validate_password_sql_file () {
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local initfile
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initfile="$(mktemp /tmp/install-validate-password-plugin.XXXXXX.sql)"
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chmod a+r "$initfile"
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echo "SET @@SESSION.SQL_LOG_BIN=0;" > "$initfile"
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echo "INSERT INTO mysql.plugin (name, dl) VALUES ('validate_password', 'validate_password.so');" >> $initfile
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echo $initfile
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}
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install_db () {
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# Note: something different than datadir=/var/lib/mysql requires
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# SELinux policy changes (in enforcing mode)
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datadir=$(get_option datadir "/var/lib/mysql" mysqld)
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logfile=$(get_option log-error "/var/log/mysql/mysqld.log" mysqld mysqld_safe)
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# Restore log, dir, perms and SELinux contexts
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if [ ! -d "$datadir" -a ! -h "$datadir" -a "x$(dirname "$datadir")" = "x/var/lib" ]; then
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install -d -m 0751 -omysql -gmysql "$datadir" || return 1
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fi
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if [ ! -e "$logfile" -a ! -h "$logfile" -a "x$(dirname "$logfile")" = "x/var/log/mysql" ]; then
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install /dev/null -omysql -gmysql "$logfile" || return 1
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fi
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if [ -x /usr/sbin/restorecon ]; then
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/usr/sbin/restorecon "$datadir"
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/usr/sbin/restorecon "$logfile"
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fi
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# If special mysql dir is in place, skip db install
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[ -d "$datadir/mysql" ] && return 0
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# Create initial db and install validate password plugin
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initfile="$(install_validate_password_sql_file)"
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/usr/sbin/mysqld --initialize --datadir="$datadir" --user=mysql --init-file="$initfile"
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ret=$?
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rm -f "$initfile"
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# Generate certs if neded
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if [ -x /usr/bin/mysql_ssl_rsa_setup -a ! -e "${datadir}/server-key.pem" ] ; then
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/usr/bin/mysql_ssl_rsa_setup --datadir="$datadir" --uid=mysql >/dev/null 2>&1
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fi
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return $ret
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}
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# Wait for ping to answer to signal startup completed,
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# might take a while in case of e.g. crash recovery
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pinger () {
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mysqld_safe_pid=$1
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timer=$STARTTIMEOUT
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ret=0
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while [ $timer -gt 0 ]; do
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sleep 1
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mysqladmin --no-defaults --socket="$socket" ping >/dev/null 2>&1 && break
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timer=$(expr $timer - 1)
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# Check if mysqld_safe is still alive, if not there is no hope
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if ! kill -0 $mysqld_safe_pid >/dev/null 2>&1 ; then
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ret=1
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break
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fi
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done
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# Did we timeout?
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if [ $timer = 0 ]; then
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echo "MySQL Database start up timeout after ${STARTTIMEOUT}s"
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ret=1
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fi
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return $ret
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}
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# Check if mysqld is running
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chk_running () {
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ret=0
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if [ -e "$pidfile" ]; then
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pid=$(cat "$pidfile") || ret=4
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else
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ret=7
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fi
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# Check if $pid is a mysqld pid
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if [ $ret -eq 0 ]; then
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[ -L "/proc/$pid/exe" ] || ret=7
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fi
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if [ $ret -eq 0 ]; then
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exec=$(readlink "/proc/$pid/exe") || ret=7
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fi
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if [ $ret -eq 0 ]; then
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[ "x$(basename $exec)" = "xmysqld" ] || ret=7
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fi
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return $ret
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}
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start () {
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if chk_running && mysqladmin --no-defaults --socket="$socket" ping >/dev/null 2>&1 ; then
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echo -n "Starting service MySQL:"
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rc_reset ; rc_status -v ; rc_exit
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fi
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if ! install_db; then
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echo -n "MySQL Database could not initialize data directory:"
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rc_failed 6 ; rc_status -v ; rc_exit
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fi
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$PROG --basedir=/usr --datadir="$datadir" --pid-file="$pidfile" $extra_opts >/dev/null &
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if pinger $! ; then
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echo -n "Starting service MySQL:"
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touch $lockfile
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rc_reset
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else
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echo -n "Failed to start service MySQL:"
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rc_failed 3
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fi
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rc_status -v
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}
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stop () {
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chk_running
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ret=$?
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if [ $ret -ne 0 ]; then
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echo -n "Shutting down service MySQL:"
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rc_reset ; rc_status -v ; return 0
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fi
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# chk_running has verified this works
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pid=$(cat "$pidfile")
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# We use a signal to avoid having to know the root password
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# Send single kill command and then wait
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if su - mysql -s /bin/bash -c "kill $pid" >/dev/null 2>&1; then
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timer=$STOPTIMEOUT
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while [ $timer -gt 0 ]; do
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kill -0 $pid >/dev/null 2>&1 || break
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sleep 1
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timer=$(expr $timer - 1)
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done
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else
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echo -n "Shutting down service MySQL:"
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rc_failed 4 ; rc_status -v ; rc_exit
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fi
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if [ $timer -eq 0 ]; then
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echo -n "Failed to stop service MySQL:"
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rc_failed 1
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else
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rm -f $lockfile
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rm -f "$socketfile"
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echo -n "Shutting down service MySQL:"
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rc_reset
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fi
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rc_status -v
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}
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restart () {
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stop
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start
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}
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reload () {
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ret=0
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if chk_running && mysqladmin --no-defaults --socket="$socket" ping >/dev/null 2>&1 ; then
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pid=$(cat "$pidfile")
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su - mysql -s /bin/bash -c "kill -HUP $pid" >/dev/null 2>&1
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echo -n "Reloading service MySQL:"
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rc_reset
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else
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echo -n "Reloading of service MySQL failed:"
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rc_failed 7
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fi
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rc_status -v
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}
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condrestart () {
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if chk_running && mysqladmin --no-defaults --socket="$socket" ping >/dev/null 2>&1 ; then
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restart
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fi
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}
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status () {
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echo -n "Checking for service MySQL:"
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checkproc mysqld
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rc_status -v
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}
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case "$command" in
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start ) start ;;
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stop ) stop ;;
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restart) restart ;;
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status ) status ;;
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condrestart ) condrestart ;;
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reload|force-reload) reload ;;
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*) echo $"Usage: $0 {start|stop|restart|condrestart|status|reload|force-reload}"; exit 1 ;;
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esac
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rc_exit
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