variable "aws_region" {
    type = string
    description = "AWS region"
    default = "eu-west-3"
}

variable "vpc_cidr_block" {
    description = "VPC CIDR block"
    type = string
    default = "10.0.0.0/16"
}


variable "subnets" {
    description = "Subnets to create"
    type = map(map(string))
    default = {}
}

variable "images" {
    description = "Images to use with instances"
    type = map(map(string))
    default = {
        ubuntu = {
            name_filter = "ubuntu/images/hvm-ssd/ubuntu-jammy-22.04-amd64-server-*",
            owner = "099720109477"
        },
        amazon = {
            name_filter = "al2023-ami-*-kernel-6.1-x86_64"
            owner = "137112412989"
        }
    }
}

variable "instances" {
    description = "AWS instance type for app"
    type = map(map(string))
    default = {
        demo01 = {
            instance_type = "t3.micro",
            image = "ubuntu",
            subnet = "sub01"
        },
        demo02 = {
            instance_type = "t3.micro",
            image = "amazon",
            subnet = "sub02"
        }
    }
}

variable "common_tags" {
    type = map(string)
    description = "Default common tags"
    default = {
      Owner = "user"
      CourseId = "my_course"
    }
}

variable "trigram" {
    type = string
    description = "User trigram"
}