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If you specify the `MASTER_HOST` or `MASTER_PORT` option, the slave assumes that the master server is different from before (even if the option value is the same as its current value.) In this case, the old values for the master binary log file name and position are considered no longer applicable, so if you do not specify `MASTER_LOG_FILE` and `MASTER_LOG_POS` in the statement, `MASTER_LOG_FILE=''` and `MASTER_LOG_POS=4` are silently appended to it. Do avoid the resetting of `MASTER_LOG_FILE` and `MASTER_LOG_POS`, we generated the dump after setting the `MASTER_HOST` https://dev.mysql.com/doc/refman/5.0/en/change-master-to.html
104 lines
3.8 KiB
Bash
104 lines
3.8 KiB
Bash
# MariaDB Utility functions
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PROGRAM_OPTIONS="--defaults-file=$BITNAMI_APP_DIR/my.cnf --log-error=$BITNAMI_APP_DIR/logs/mysqld.log --basedir=$BITNAMI_APP_DIR --datadir=$BITNAMI_APP_DIR/data --plugin-dir=$BITNAMI_APP_DIR/lib/plugin --user=$BITNAMI_APP_USER --socket=$BITNAMI_APP_DIR/tmp/mysql.sock --lower-case-table-names=1"
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if [ "$REPLICATION_MODE" ]; then
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SERVER_ID=${SERVER_ID:-$RANDOM}
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PROGRAM_OPTIONS+=" --server-id=$SERVER_ID --log-bin=mysql-bin --binlog-format=ROW"
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if [ "$REPLICATION_MODE" = "slave" ]; then
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PROGRAM_OPTIONS+=" --relay-log=mysql-relay-bin ${MARIADB_DATABASE:+--replicate-do-db=$MARIADB_DATABASE}"
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fi
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fi
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initialize_database() {
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echo "==> Initializing MySQL database..."
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echo ""
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$BITNAMI_APP_DIR/scripts/mysql_install_db --port=3306 --socket=$BITNAMI_APP_DIR/tmp/mysql.sock --basedir=$BITNAMI_APP_DIR --datadir=$BITNAMI_APP_DIR/data > /dev/null
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chown -R $BITNAMI_APP_USER:$BITNAMI_APP_USER $BITNAMI_APP_DIR/data
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}
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create_custom_database() {
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if [ "$MARIADB_DATABASE" ]; then
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echo "==> Creating database $MARIADB_DATABASE..."
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echo ""
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echo "CREATE DATABASE IF NOT EXISTS \`$MARIADB_DATABASE\`;" >> /tmp/init_mysql.sql
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fi
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}
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create_mysql_user() {
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if [ ! "$MARIADB_USER" ]; then
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MARIADB_USER=root
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fi
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if [ "$MARIADB_USER" != "root" ] && [ ! $MARIADB_DATABASE ]; then
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echo "In order to use a custom MARIADB_USER you need to provide the MARIADB_DATABASE as well"
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echo ""
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exit -1
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fi
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echo "==> Creating user $MARIADB_USER..."
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echo ""
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echo "DELETE FROM mysql.user ;" >> /tmp/init_mysql.sql
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echo "CREATE USER '${MARIADB_USER}'@'%' IDENTIFIED BY '${MARIADB_PASSWORD}' ;" >> /tmp/init_mysql.sql
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if [ "$MARIADB_USER" = root ]; then
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echo "==> Creating root user with unrestricted access..."
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echo "GRANT ALL ON *.* TO 'root'@'%' WITH GRANT OPTION ;" >> /tmp/init_mysql.sql
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else
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echo "==> Granting access to $MARIADB_USER to the database $MARIADB_DATABASE..."
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echo ""
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echo "GRANT ALL ON \`${MARIADB_DATABASE}\`.* TO \`${MARIADB_USER}\`@'%' ;" >> /tmp/init_mysql.sql
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fi
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echo "FLUSH PRIVILEGES ;" >> /tmp/init_mysql.sql
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echo "DROP DATABASE IF EXISTS test ; " >> /tmp/init_mysql.sql
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}
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configure_replication() {
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case "$REPLICATION_MODE" in
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master)
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if [ "$REPLICATION_USER" ]; then
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echo "==> Creating replication user $REPLICATION_USER..."
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echo ""
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echo "GRANT REPLICATION SLAVE ON *.* TO '$REPLICATION_USER'@'%' IDENTIFIED BY '$REPLICATION_PASSWORD';" >> /tmp/init_mysql.sql
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echo "FLUSH PRIVILEGES ;" >> /tmp/init_mysql.sql
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fi
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;;
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slave)
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echo ""
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echo "==> Setting up MariaDB slave..."
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echo "==> Trying to fetch MariaDB master connection parameters from the mariadb-master link..."
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MASTER_HOST=${MASTER_HOST:-$MARIADB_MASTER_PORT_3306_TCP_ADDR}
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MASTER_USER=${MASTER_USER:-$MARIADB_MASTER_ENV_MARIADB_USER}
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MASTER_PASSWORD=${MASTER_PASSWORD:-$MARIADB_MASTER_ENV_MARIADB_PASSWORD}
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REPLICATION_USER=${REPLICATION_USER:-$MARIADB_MASTER_ENV_REPLICATION_USER}
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REPLICATION_PASSWORD=${REPLICATION_PASSWORD:-$MARIADB_MASTER_ENV_REPLICATION_PASSWORD}
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echo "==> Setting the master configuration..."
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echo "CHANGE MASTER TO MASTER_HOST='$MASTER_HOST', MASTER_USER='$REPLICATION_USER', MASTER_PASSWORD='$REPLICATION_PASSWORD';" >> /tmp/init_mysql.sql
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echo "==> Creating a data snapshot..."
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mysqldump -u$MASTER_USER ${MASTER_PASSWORD:+-p$MASTER_PASSWORD} -h $MASTER_HOST $MARIADB_DATABASE --master-data >> /tmp/init_mysql.sql
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echo "==> Starting the slave..."
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echo "START SLAVE ;" >> /tmp/init_mysql.sql
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;;
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esac
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}
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print_mysql_password() {
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if [ -z $MARIADB_PASSWORD ]; then
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echo "**none**"
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else
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echo $MARIADB_PASSWORD
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fi
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}
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print_mysql_database() {
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if [ $MARIADB_DATABASE ]; then
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echo "Database: $MARIADB_DATABASE"
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fi
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}
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