openstack/openstack-helm-infra
Code Issues Proposed changes

MariaDB backup and restore with grants of all users

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This patchset captures the grants of all the MariaDB users
in the backup tarball and restores the grants during the
all databases restore.
Percona tool pt-show-grants is installed to the image to
accomplish the task in this PS:
https://review.opendev.org/#/c/739149/

Change-Id: I26882956f96c961b6202b1004b8cf0faee6e73eb
This commit is contained in:
Huang, Sophie (sh879n) 2020-07-03 17:49:41 +00:00 committed by Tin Lam
parent 824f168efc
commit a23a60921a
2 changed files with 28 additions and 18 deletions
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10
mariadb/templates/bin/_backup_mariadb.sh.tpl
View File

@ -38,7 +38,7 @@ dump_databases_to_directory() {
MYSQL_DBNAMES=( $($MYSQL --silent --skip-column-names -e \ MYSQL_DBNAMES=( $($MYSQL --silent --skip-column-names -e \
"show databases;" | \ "show databases;" | \
egrep -vi 'information_schema|performance_schema') ) egrep -vi 'information_schema|performance_schema|mysql') )
#check if there is a database to backup, otherwise exit #check if there is a database to backup, otherwise exit
if [[ -z "${MYSQL_DBNAMES// }" ]] if [[ -z "${MYSQL_DBNAMES// }" ]]
@ -50,6 +50,13 @@ dump_databases_to_directory() {
#Create a list of Databases #Create a list of Databases
printf "%s\n" "${MYSQL_DBNAMES[@]}" > $TMP_DIR/db.list printf "%s\n" "${MYSQL_DBNAMES[@]}" > $TMP_DIR/db.list
#Retrieve and create the GRANT file for all the users
if ! pt-show-grants --defaults-file=/etc/mysql/admin_user.cnf \
2>>"$LOG_FILE" > "$TMP_DIR"/grants.sql; then
log ERROR "Failed to create GRANT for all the users"
return 1
fi
#Retrieve and create the GRANT files per DB #Retrieve and create the GRANT files per DB
for db in "${MYSQL_DBNAMES[@]}" for db in "${MYSQL_DBNAMES[@]}"
do do
@ -62,6 +69,7 @@ dump_databases_to_directory() {
sed -i 's/$/;/' $TMP_DIR/${db}_grant.sql sed -i 's/$/;/' $TMP_DIR/${db}_grant.sql
else else
log ERROR "Failed to create GRANT files for ${db}" log ERROR "Failed to create GRANT files for ${db}"
return 1
fi fi
done done

24
mariadb/templates/bin/_restore_mariadb.sh.tpl
View File

@ -221,6 +221,10 @@ restore_single_db() {
$MYSQL < ${TMP_DIR}/${SINGLE_DB_NAME}_grant.sql 2>>$RESTORE_LOG $MYSQL < ${TMP_DIR}/${SINGLE_DB_NAME}_grant.sql 2>>$RESTORE_LOG
if [[ "$?" -eq 0 ]] if [[ "$?" -eq 0 ]]
then then
if ! $MYSQL --execute="FLUSH PRIVILEGES;"; then
echo "Failed to flush privileges for $SINGLE_DB_NAME."
return 1
fi
echo "Database $SINGLE_DB_NAME Permission Restore successful." echo "Database $SINGLE_DB_NAME Permission Restore successful."
else else
cat $RESTORE_LOG cat $RESTORE_LOG
@ -254,27 +258,25 @@ restore_all_dbs() {
echo "Databases $( echo $DBS | tr -d '\n') Restore failed." echo "Databases $( echo $DBS | tr -d '\n') Restore failed."
return 1 return 1
fi fi
if [ -n "$DBS" ] if [[ -f ${TMP_DIR}/grants.sql ]]
then then
for db in $DBS $MYSQL < ${TMP_DIR}/grants.sql 2>$RESTORE_LOG
do
if [ -f ${TMP_DIR}/${db}_grant.sql ]
then
$MYSQL < ${TMP_DIR}/${db}_grant.sql 2>>$RESTORE_LOG
if [[ "$?" -eq 0 ]] if [[ "$?" -eq 0 ]]
then then
echo "Database $db Permission Restore successful." if ! $MYSQL --execute="FLUSH PRIVILEGES;"; then
echo "Failed to flush privileges."
return 1
fi
echo "Databases Permission Restore successful."
else else
cat $RESTORE_LOG cat $RESTORE_LOG
echo "Database $db Permission Restore failed." echo "Databases Permission Restore failed."
return 1 return 1
fi fi
else else
echo "There is no permission file available for $db" echo "There is no permission file available"
return 1 return 1
fi fi
done
fi
else else
echo "There is no database file available to restore from" echo "There is no database file available to restore from"
return 1 return 1