feat: Implement MariaDB and backup job modules with configuration and secrets management

terraform/modules/k8s_mariadb/outputs.tf

@@ -0,0 +1,15 @@
+output "host" {
+  value = "mariadb"
+}
+
+output "port" {
+  value = 3306
+}
+
+output "root_crendentials_name" {
+  value = kubernetes_secret.root_password.metadata[0].name
+}
+
+output "app_crendentials_name" {
+  value = kubernetes_secret.app_password.metadata[0].name
+}