96 lines
3.0 KiB
Smarty
96 lines
3.0 KiB
Smarty
#!/bin/bash
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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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set -x
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source /tmp/backup_main.sh
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# Export the variables required by the framework
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# Note: REMOTE_BACKUP_ENABLED, STORAGE_POLICY and CONTAINER_NAME are already
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# exported.
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export DB_NAMESPACE=${MARIADB_POD_NAMESPACE}
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export DB_NAME="mariadb"
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export LOCAL_DAYS_TO_KEEP=${MARIADB_LOCAL_BACKUP_DAYS_TO_KEEP}
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export REMOTE_DAYS_TO_KEEP=${MARIADB_REMOTE_BACKUP_DAYS_TO_KEEP}
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export ARCHIVE_DIR=${MARIADB_BACKUP_BASE_DIR}/db/${DB_NAMESPACE}/${DB_NAME}/archive
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# Dump all the database files to existing $TMP_DIR and save logs to $LOG_FILE
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dump_databases_to_directory() {
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TMP_DIR=$1
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LOG_FILE=$2
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MYSQL="mysql \
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--defaults-file=/etc/mysql/admin_user.cnf \
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--connect-timeout 10"
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MYSQLDUMP="mysqldump \
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--defaults-file=/etc/mysql/admin_user.cnf"
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MYSQL_DBNAMES=( $($MYSQL --silent --skip-column-names -e \
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"show databases;" | \
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egrep -vi 'information_schema|performance_schema|mysql') )
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#check if there is a database to backup, otherwise exit
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if [[ -z "${MYSQL_DBNAMES// }" ]]
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then
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log INFO "There is no database to backup"
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return 0
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fi
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#Create a list of Databases
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printf "%s\n" "${MYSQL_DBNAMES[@]}" > $TMP_DIR/db.list
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#Retrieve and create the GRANT file for all the users
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if ! pt-show-grants --defaults-file=/etc/mysql/admin_user.cnf \
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2>>"$LOG_FILE" > "$TMP_DIR"/grants.sql; then
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log ERROR "Failed to create GRANT for all the users"
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return 1
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fi
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#Retrieve and create the GRANT files per DB
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for db in "${MYSQL_DBNAMES[@]}"
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do
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echo $($MYSQL --skip-column-names -e "select concat('show grants for ',user,';') \
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from mysql.db where ucase(db)=ucase('$db');") | \
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sed -r "s/show grants for ([a-zA-Z0-9_-]*)/show grants for '\1'/" | \
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$MYSQL --silent --skip-column-names 2>>$LOG_FILE > $TMP_DIR/${db}_grant.sql
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if [ "$?" -eq 0 ]
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then
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sed -i 's/$/;/' $TMP_DIR/${db}_grant.sql
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else
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log ERROR "Failed to create GRANT files for ${db}"
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return 1
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fi
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done
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#Dumping the database
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DATE=$(date +'%Y-%m-%dT%H:%M:%SZ')
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SQL_FILE=mariadb.$MARIADB_POD_NAMESPACE.all
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TARBALL_FILE=${SQL_FILE}.${DATE}.tar.gz
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$MYSQLDUMP $MYSQL_BACKUP_MYSQLDUMP_OPTIONS "${MYSQL_DBNAMES[@]}" \
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> $TMP_DIR/${SQL_FILE}.sql 2>>$LOG_FILE
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if [[ $? -eq 0 && -s $TMP_DIR/${SQL_FILE}.sql ]]
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then
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log INFO "Databases dumped successfully."
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return 0
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else
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log ERROR "Backup failed and need attention."
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return 1
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fi
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}
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# Call main program to start the database backup
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backup_databases
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