feat: Define Terraform input variables

Author: bogdan-ts

terraform/aws/variables.tf

@@ -0,0 +1,78 @@
+variable "aws_region" {
+  description = "AWS region"
+  type        = string
+  default     = "us-east-1"
+}
+
+variable "environment" {
+  description = "Environment name"
+  type        = string
+  default     = "production"
+}
+
+variable "instance_type" {
+  description = "EC2 instance type"
+  type        = string
+  default     = "t3.medium"
+}
+
+variable "data_volume_size" {
+  description = "Size of EBS data volume in GiB"
+  type        = number
+  default     = 100
+}
+
+variable "ssh_key_name" {
+  description = "Name of SSH key pair for EC2 access"
+  type        = string
+}
+
+variable "allowed_ssh_cidr" {
+  description = "CIDR blocks allowed for SSH access"
+  type        = list(string)
+  default     = ["0.0.0.0/0"]
+}
+
+variable "allowed_cidr_blocks" {
+  description = "CIDR blocks allowed for Grafana access"
+  type        = list(string)
+  default     = ["0.0.0.0/0"]
+}
+
+variable "use_elastic_ip" {
+  description = "Allocate Elastic IP for stable address"
+  type        = bool
+  default     = true
+}
+
+variable "grafana_password" {
+  description = "Grafana admin password"
+  type        = string
+  sensitive   = true
+}
+
+variable "postgres_ai_api_key" {
+  description = "PostgresAI API key (optional)"
+  type        = string
+  default     = ""
+  sensitive   = true
+}
+
+variable "monitoring_instances" {
+  description = "PostgreSQL instances to monitor"
+  type = list(object({
+    name        = string
+    conn_str    = string
+    environment = string
+    cluster     = string
+    node_name   = string
+  }))
+  default = []
+}
+
+variable "enable_demo_db" {
+  description = "Enable demo database"
+  type        = bool
+  default     = false
+}
+