diff --git a/manifests/database/sql.pp b/manifests/database/sql.pp index 3c1a018a..76ce639f 100644 --- a/manifests/database/sql.pp +++ b/manifests/database/sql.pp @@ -15,12 +15,15 @@ # # MySQL Galera Node # - +# === Parameters +# +# [*galera_internal_ips*] +# Array of internal ip of the galera nodes. class cloud::database::sql ( $api_eth = $os_params::api_eth, $service_provider = 'sysv', - $galera_nextserver = $os_params::galera_nextserver, $galera_master_name = $os_params::galera_master_name, + $galera_internal_ips = $os_params::galera_internal_ips, $keystone_db_host = $os_params::keystone_db_host, $keystone_db_user = $os_params::keystone_db_user, $keystone_db_password = $os_params::keystone_db_password, @@ -90,16 +93,26 @@ class cloud::database::sql ( } } - class { 'mysql::server': - config_hash => { - bind_address => $api_eth, - root_password => $mysql_root_password, - }, - notify => Service['xinetd'], + if($::osfamily == 'Debian'){ + class { 'cloud::debian::galera_patch' : } } + $gcomm_base = inline_template('<%= @galera_internal_ips.join(",") + "?pc.wait_prim=no" -%>') + if $::hostname == $galera_master_name { + + class { 'mysql::server': + config_hash => { + bind_address => $api_eth, + root_password => $mysql_root_password, + service_name => 'mysql-bootstrap', + }, + notify => Service['xinetd'], + } + + $gcomm_definition = "${gcomm_base}&pc.bootstrap=1" + # OpenStack DB class { 'keystone::db::mysql': dbname => 'keystone', @@ -175,8 +188,18 @@ class cloud::database::sql ( } Database_user<<| |>> + } else { + $gcomm_definition = $gcomm_base - } # if $::hostname == $galera_master_name + class { 'mysql::server': + config_hash => { + bind_address => $api_eth, + root_password => $mysql_root_password, + service_name => 'mysql', + }, + notify => Service['xinetd'], + } + } # if $::hostname == $galera_master # Haproxy http monitoring file_line { 'mysqlchk-in-etc-services': diff --git a/manifests/debian/galera_patch.pp b/manifests/debian/galera_patch.pp new file mode 100644 index 00000000..cbb62d91 --- /dev/null +++ b/manifests/debian/galera_patch.pp @@ -0,0 +1,45 @@ +# +# Copyright (C) 2013 eNovance SAS +# +# Licensed under the Apache License, Version 2.0 (the "License"); you may +# not use this file except in compliance with the License. You may obtain +# a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT +# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the +# License for the specific language governing permissions and limitations +# under the License. +# +# == Class: cloud::debian::galera_patch +# +# Install a dedicated mysqld init script +# +# This is due to this bug: https://bugs.launchpad.net/codership-mysql/+bug/1087368 +# +# The backport to API 23 requires a command line option --wsrep-new-cluster: +# +# http://bazaar.launchpad.net/~codership/codership-mysql/wsrep-5.5/revision/3844?start_revid=3844 +# +# and the mysql init script cannot have arguments passed to the daemon +# using /etc/default/mysql standart mechanism +# +# To check that the mysqld support the options you can : +# strings `which mysqld` | grep wsrep-new-cluster +# +# TODO: to be remove as soon as the API 25 is packaged, ie galera 3 ... +class cloud::debian::galera_patch ( + ) { + + # replace the file + file { '/etc/init.d/mysql-bootstrap': + content => template('cloud/database/etc_initd_mysql'), + owner => 'root', + mode => '0755', + group => 'root', + notify => Service['mysqld'], + before => Package['mysql-server'], + } +} diff --git a/templates/database/etc_initd_mysql b/templates/database/etc_initd_mysql new file mode 100755 index 00000000..62dc0d5e --- /dev/null +++ b/templates/database/etc_initd_mysql @@ -0,0 +1,200 @@ +#!/bin/bash +# +### BEGIN INIT INFO +# Provides: mysql +# Required-Start: $remote_fs $syslog +# Required-Stop: $remote_fs $syslog +# Should-Start: $network $named $time +# Should-Stop: $network $named $time +# Default-Start: 2 3 4 5 +# Default-Stop: 0 1 6 +# Short-Description: Start and stop the mysql database server daemon +# Description: Controls the main MariaDB database server daemon "mysqld" +# and its wrapper script "mysqld_safe". +### END INIT INFO +# +MYSQLD_STARTUP_TIMEOUT=${MYSQLD_STARTUP_TIMEOUT:-60} +[ -e /etc/mysql/my.cnf ] && \ + MYSQLD_DATA_DIR=$(awk -F= '/^datadir/{print $2}' /etc/mysql/my.cnf | sed -e 's/^ *//') +MYSQLD_DATA_DIR=${MYSQLD_DATA_DIR:-<%= scope.lookupvar('::mysql::datadir') %>} +set -e +set -u +${DEBIAN_SCRIPT_DEBUG:+ set -v -x} + +test -x /usr/sbin/mysqld || exit 0 + +. /lib/lsb/init-functions + +SELF=$(cd $(dirname $0); pwd -P)/$(basename $0) +CONF=/etc/mysql/my.cnf +MYADMIN="/usr/bin/mysqladmin --defaults-file=/etc/mysql/debian.cnf" + +# priority can be overriden and "-s" adds output to stderr +ERR_LOGGER="logger -p daemon.err -t /etc/init.d/mysql -i" + +# Safeguard (relative paths, core dumps..) +cd / +umask 077 + +# mysqladmin likes to read /root/.my.cnf. This is usually not what I want +# as many admins e.g. only store a password without a username there and +# so break my scripts. +export HOME=/etc/mysql/ + +## Fetch a particular option from mysql's invocation. +# +# Usage: void mysqld_get_param option +mysqld_get_param() { + /usr/sbin/mysqld --print-defaults \ + | tr " " "\n" \ + | grep -- "--$1" \ + | tail -n 1 \ + | cut -d= -f2 +} + +## Do some sanity checks before even trying to start mysqld. +sanity_checks() { + # check for config file + if [ ! -r /etc/mysql/my.cnf ]; then + log_warning_msg "$0: WARNING: /etc/mysql/my.cnf cannot be read. See README.Debian.gz" + echo "WARNING: /etc/mysql/my.cnf cannot be read. See README.Debian.gz" | $ERR_LOGGER + fi + + # check for diskspace shortage + datadir=`mysqld_get_param datadir` + if LC_ALL=C BLOCKSIZE= df --portability $datadir/. | tail -n 1 | awk '{ exit ($4>4096) }'; then + log_failure_msg "$0: ERROR: The partition with $datadir is too full!" + echo "ERROR: The partition with $datadir is too full!" | $ERR_LOGGER + exit 1 + fi +} + +## Checks if there is a server running and if so if it is accessible. +# +# check_alive insists on a pingable server +# check_dead also fails if there is a lost mysqld in the process list +# +# Usage: boolean mysqld_status [check_alive|check_dead] [warn|nowarn] +mysqld_status () { + ping_output=`$MYADMIN ping 2>&1`; ping_alive=$(( ! $? )) + + ps_alive=0 + pidfile=`mysqld_get_param pid-file` + if [ -f "$pidfile" ] && ps `cat $pidfile` >/dev/null 2>&1; then ps_alive=1; fi + + if [ "$1" = "check_alive" -a $ping_alive = 1 ] || + [ "$1" = "check_dead" -a $ping_alive = 0 -a $ps_alive = 0 ]; then + return 0 # EXIT_SUCCESS + else + if [ "$2" = "warn" ]; then + echo -e "$ps_alive processes alive and '$MYADMIN ping' resulted in\n$ping_output\n" | $ERR_LOGGER -p daemon.debug + fi + return 1 # EXIT_FAILURE + fi +} + +# +# main() +# + +case "${1:-''}" in + 'start') + sanity_checks; + # Start daemon + log_daemon_msg "Starting MariaDB database server" "mysqld" + if mysqld_status check_alive nowarn; then + log_progress_msg "already running" + log_end_msg 0 + else + # Could be removed during boot + test -e /var/run/mysqld || install -m 755 -o mysql -g root -d /var/run/mysqld + + # Start MariaDB! in a Galera setup we want to use + # new-cluster only when the galera cluster hasn't been + # bootstraped + if [ -e ${MYSQLD_DATA_DIR}/grastate.dat ]; then + # normal boot + /usr/bin/mysqld_safe "${@:2}" > /dev/null 2>&1 & + else + # bootstrap boot + log_progress_msg " (Galera bootstrap) " + /usr/bin/mysqld_safe "${@:2}" --wsrep-new-cluster > /dev/null 2>&1 & + fi + + # 6s was reported in #352070 to be too few when using ndbcluster + for i in $(seq 1 "${MYSQLD_STARTUP_TIMEOUT:-30}"); do + sleep 1 + if mysqld_status check_alive nowarn ; then break; fi + log_progress_msg "." + done + if mysqld_status check_alive warn; then + log_end_msg 0 + # Now start mysqlcheck or whatever the admin wants. + output=$(/etc/mysql/debian-start) + [ -n "$output" ] && log_action_msg "$output" + else + log_end_msg 1 + log_failure_msg "Please take a look at the syslog" + fi + fi + ;; + + 'stop') + # * As a passwordless mysqladmin (e.g. via ~/.my.cnf) must be possible + # at least for cron, we can rely on it here, too. (although we have + # to specify it explicit as e.g. sudo environments points to the normal + # users home and not /root) + log_daemon_msg "Stopping MariaDB database server" "mysqld" + if ! mysqld_status check_dead nowarn; then + set +e + shutdown_out=`$MYADMIN shutdown 2>&1`; r=$? + set -e + if [ "$r" -ne 0 ]; then + log_end_msg 1 + [ "$VERBOSE" != "no" ] && log_failure_msg "Error: $shutdown_out" + log_daemon_msg "Killing MariaDB database server by signal" "mysqld" + killall -15 mysqld + server_down= + for i in `seq 1 600`; do + sleep 1 + if mysqld_status check_dead nowarn; then server_down=1; break; fi + done + if test -z "$server_down"; then killall -9 mysqld; fi + fi + fi + + if ! mysqld_status check_dead warn; then + log_end_msg 1 + log_failure_msg "Please stop MariaDB manually and read /usr/share/doc/mariadb-server-5.5/README.Debian.gz!" + exit -1 + else + log_end_msg 0 + fi + ;; + + 'restart') + set +e; $SELF stop; set -e + $SELF start + ;; + + 'reload'|'force-reload') + log_daemon_msg "Reloading MariaDB database server" "mysqld" + $MYADMIN reload + log_end_msg 0 + ;; + + 'status') + if mysqld_status check_alive nowarn; then + log_action_msg "$($MYADMIN version)" + else + log_action_msg "MariaDB is stopped." + exit 3 + fi + ;; + + *) + echo "Usage: $SELF start|stop|restart|reload|force-reload|status" + exit 1 + ;; +esac + diff --git a/templates/database/mysql.conf.erb b/templates/database/mysql.conf.erb index 84dc2018..c224504a 100644 --- a/templates/database/mysql.conf.erb +++ b/templates/database/mysql.conf.erb @@ -42,14 +42,8 @@ innodb_autoinc_lock_mode = 2 innodb_locks_unsafe_for_binlog = 1 wsrep_provider = "<%= @wsrep_provider %>" wsrep_cluster_name = "galera_cluster" -<% if @hostname != @galera_master_name -%> -# This node is not Galera Master (connect wsrep to galera_master_name) -wsrep_cluster_address = "gcomm://<%= @galera_nextserver[0] %>" -<% else -%> -# This node is Galera Master (connect wsrep to localhost) -wsrep_cluster_address = "gcomm://" -<% end -%> -wsrep_sst_auth = root:<%= @mysql_password %> +wsrep_cluster_address = "gcomm://<%= @gcomm_definition %>" +wsrep_sst_auth = root:<%= @mysql_root_password %> wsrep_certify_nonPK = 1 wsrep_convert_LOCK_to_trx = 0 wsrep_auto_increment_control = 1