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

terraform/modules/k8s_mariadb/variables.tf

@@ -0,0 +1,51 @@
+variable "namespace" {
+  description = "namespace"
+  sensitive   = false
+  type        = string
+}
+
+variable "app_name" {
+  description = "database name"
+  sensitive   = false
+  type        = string
+}
+
+variable "root_password" {
+  description = "root password"
+  sensitive   = true
+  type        = string
+}
+
+variable "app_password" {
+  description = "user password"
+  sensitive   = true
+  type        = string
+}
+
+variable "database_folder" {
+  description = "host storage path"
+  type        = string
+}
+
+variable "cron_schedule" {
+  description = "Cronjob schedule for data backups"
+  default     = "* 2 * * *"
+  type        = string
+}
+
+variable "retention_days" {
+  description = "Backup retention days"
+  default     = 14
+  type        = number
+}
+
+variable "current_version" {
+  description = "version"
+  default     = "10.7.8"
+  type        = string
+}
+
+variable "backup_folder" {
+  description = "Backup source location"
+  type        = string
+}