db: refs #8140 - clean party

roles/db/defaults/main.yaml

@@ -29,8 +29,7 @@ required_mariabackup_files_and_scripts:
   - { src: scripts/check-memory.sh, dest: /root/scripts/check-memory.sh, mode: u=rwx,g=rx,o=rx }
   - { src: scripts/export-privs.sh, dest: /root/scripts/export-privs.sh, mode: u=rwx,g=rx,o=rx }
   - { src: scripts/mysqltuner.pl, dest: /root/scripts/mysqltuner.pl, mode: u=rwx,g=rx,o=rx }
-  - { src: scripts/events-promote.sh, dest: /root/scripts/events-promote.sh, mode: u=rwx,g=rx,o=rx }
-  - { src: scripts/events-demote.sh, dest: /root/scripts/events-demote.sh, mode: u=rwx,g=rx,o=rx }
+  - { src: scripts/role-change.sh, dest: /root/scripts/role-change.sh, mode: u=rwx,g=rx,o=rx }
   - { src: scripts/README.md, dest: /root/scripts/README.md, mode: u=rw,g=r,o=r }
   - { src: scripts/scheduler-log.sh, dest: /root/scripts/scheduler-log.sh, mode: u=rwx,g=rx,o=rx }
 configuration_files:

roles/db/files/scripts/events-demote.sh

@@ -1,16 +0,0 @@
-#!/bin/bash
-
-mysql -e "SET GLOBAL event_scheduler = OFF"
-
-echo "SELECT db, name FROM mysql.event WHERE status = 'ENABLED'" | mysql --raw --silent | \
-awk '{
-	gsub("`", "``", $1);
-	gsub("`", "``", $2);
-	print "`"$1"`.`"$2"`";
-}' | \
-while read event; do
-	mysql -e "ALTER EVENT $event DISABLE ON SLAVE"
-done
-
-mysql -e "SET GLOBAL event_scheduler = ON"
-

roles/db/files/scripts/events-promote.sh

@@ -1,15 +0,0 @@
-#!/bin/bash
-
-mysql -e "SET GLOBAL event_scheduler = OFF"
-
-echo "SELECT db, name FROM mysql.event WHERE status = 'SLAVESIDE_DISABLED'" | mysql --raw --silent | \
-awk '{
-	gsub("`", "``", $1);
-	gsub("`", "``", $2);
-	print "`"$1"`.`"$2"`";
-}' | \
-while read event; do
-	mysql -e "ALTER EVENT $event ENABLE"
-done
-
-mysql -e "SET GLOBAL event_scheduler = ON"