microstack/snap-wrappers/mysql/mysql-start-server

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#!/bin/bash
# Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
#
# 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 St, Fifth Floor, Boston, MA 02110-1301 USA
set -e
init_config() {
# Write out config.
# Include 'client' section for pymysql client.
# TODO: is [mysql] section necessary?
mkdir -p "${CONFDIR}"
echo "Generating config file in ${CONFFILE}..."
cat > ${CONFFILE} <<EOF
[mysqld]
pid-file=${RUNDIR}/mysqld.pid
socket=${RUNDIR}/mysqld.sock
port=${PORT}
datadir=${DATADIR}
log-error=${LOGDIR}/error.log
secure-file-priv=${FILESDIR}
basedir=${BASEDIR}
skip-name-resolve
[mysql]
socket=${RUNDIR}/mysqld.sock
port=${PORT}
[client]
socket=${RUNDIR}/mysqld.sock
port=${PORT}
[mysql_upgrade]
socket=${RUNDIR}/mysqld.sock
port=${PORT}
EOF
}
init_sql() {
# Write out the initial SQL statements to execute on mysql initialization.
mkdir -p "${CONFDIR}"
touch ${INIT_SQL_FILE}
chmod 600 ${INIT_SQL_FILE}
echo "Setting a root user password..."
root_password=`snapctl get config.credentials.mysql-root-password`
cat > ${INIT_SQL_FILE} <<EOF
ALTER USER 'root'@'localhost' IDENTIFIED BY '$root_password';
EOF
}
init_database() {
echo "Initializing new database in ${DATADIR}..."
mkdir -p ${DATADIR}
init_sql
mysqld --defaults-file=${CONFFILE} --init-file=${INIT_SQL_FILE} --initialize-insecure --user=root
# Get rid of the file with the root password after initialization.
rm -f ${INIT_SQL_FILE}
echo "Done"
}
USERID=$(id -u)
if [ "${USERID}" = "0" ];then
MYSQL_SNAPDIR="${SNAP_COMMON}"
else
MYSQL_SNAPDIR="${SNAP_USER_COMMON}"
fi
DATADIR="${MYSQL_SNAPDIR}/lib/mysql"
RUNDIR="${MYSQL_SNAPDIR}/run/mysql"
LOGDIR="${MYSQL_SNAPDIR}/log/mysql"
CONFDIR="${MYSQL_SNAPDIR}/etc/mysql"
CONFFILE="${CONFDIR}/my.cnf"
# A snap-specific temporary directory is used.
INIT_SQL_FILE="/tmp/init.sql"
FILESDIR="${MYSQL_SNAPDIR}/lib/mysql-files"
BASEDIR="${SNAP}/usr"
PORT=$(snapctl get config.network.ports.mysql)
[ -d "${LOGDIR}" ] || mkdir -p ${LOGDIR}
[ -f "${LOGDIR}/error.log" ] || touch ${LOGDIR}/error.log
[ -d "${FILESDIR}" ] || {
mkdir -p ${FILESDIR}
chmod 0700 ${FILESDIR}
}
[ -d "${RUNDIR}" ] || mkdir -p ${RUNDIR}
[ -d "${CONFDIR}" ] || init_config
[ -d "${DATADIR}" ] || init_database
echo "Starting server..."
exec mysqld --defaults-file=${CONFFILE} --user=root $@