diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/db/Dockerfile b/.examples/docker-compose/insecure/mariadb-cron-redis/apache/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/db/transaction-isolation.conf b/.examples/docker-compose/insecure/mariadb-cron-redis/apache/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml b/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml
index a08fc9f..8073f6e 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/apache/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/db/Dockerfile b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/db/transaction-isolation.conf b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml
index 76f7863..4cf3072 100644
--- a/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb-cron-redis/fpm/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/insecure/mariadb/apache/db/Dockerfile b/.examples/docker-compose/insecure/mariadb/apache/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/insecure/mariadb/apache/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/insecure/mariadb/apache/db/transaction-isolation.conf b/.examples/docker-compose/insecure/mariadb/apache/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/insecure/mariadb/apache/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/insecure/mariadb/apache/docker-compose.yml b/.examples/docker-compose/insecure/mariadb/apache/docker-compose.yml
index d561244..18f276a 100644
--- a/.examples/docker-compose/insecure/mariadb/apache/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb/apache/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/insecure/mariadb/fpm/db/Dockerfile b/.examples/docker-compose/insecure/mariadb/fpm/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/insecure/mariadb/fpm/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/insecure/mariadb/fpm/db/transaction-isolation.conf b/.examples/docker-compose/insecure/mariadb/fpm/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/insecure/mariadb/fpm/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml b/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml
index 7b9cd4b..70324b1 100644
--- a/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml
+++ b/.examples/docker-compose/insecure/mariadb/fpm/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/db/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/db/transaction-isolation.conf b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml
index 80a0367..3d74dd2 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/apache/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/db/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/db/transaction-isolation.conf b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml
index 8c29b9f..663534e 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb-cron-redis/fpm/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/apache/db/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb/apache/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/apache/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/apache/db/transaction-isolation.conf b/.examples/docker-compose/with-nginx-proxy/mariadb/apache/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/apache/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/apache/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb/apache/docker-compose.yml
index 004a0b8..ace221e 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/apache/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb/apache/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/db/Dockerfile b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/db/Dockerfile
deleted file mode 100644
index d9a5cfb..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/db/Dockerfile
+++ /dev/null
@@ -1,4 +0,0 @@
-FROM mariadb
-#FROM mysql
-
-COPY transaction-isolation.conf /etc/mysql/conf.d/transaction-isolation.conf
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/db/transaction-isolation.conf b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/db/transaction-isolation.conf
deleted file mode 100644
index 527a3f0..0000000
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/db/transaction-isolation.conf
+++ /dev/null
@@ -1,5 +0,0 @@
-[mysqld]
-# Set Transaction isolation Level to READ-COMMITED (Required by nextcloud)
-# ================================================
-#   https://docs.nextcloud.com/server/13/admin_manual/configuration_database/linux_database_configuration.html#database-read-commited-transaction-isolation-level
-transaction-isolation = READ-COMMITTED
diff --git a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml
index 3db0ac1..69e6aaa 100644
--- a/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml
+++ b/.examples/docker-compose/with-nginx-proxy/mariadb/fpm/docker-compose.yml
@@ -2,7 +2,8 @@ version: '3'
 
 services:
   db:
-    build: ./db
+    image: mariadb
+    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
     restart: always
     volumes:
       - db:/var/lib/mysql