* Fix the Transaction Isolation Level of the MYSQL/MariaDB Databases

in the .example section.

.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/insecure/mariadb-cron-redis/apache/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/insecure/mariadb-cron-redis/fpm/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/insecure/mariadb/apache/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/insecure/mariadb/apache/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/insecure/mariadb/fpm/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/with-nginx-proxy/mariadb/apache/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/with-nginx-proxy/mariadb/apache/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED

.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml

@@ -7,6 +7,7 @@ services:
     restart: always
     volumes:
       - db:/var/lib/mysql
+      - ./mysql.conf:/etc/mysql/conf.d/mysql-config.cnf
     environment:
       - MYSQL_ROOT_PASSWORD=
     env_file:

.examples/docker-compose/with-nginx-proxy/mariadb/fpm/mysql.conf

@@ -0,0 +1,5 @@
+[mysqld]
+# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
+# ================================================
+#   https://docs.nextcloud.com/server/12/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
+transaction-isolation = READ-COMMITTED