Update account component (cloudposse/terraform-aws-components#295)

* Update `account` component

* Update `account` component

* Update `account` component

* Update `account` component

* Update `account` component

* Update components

Author: aknysh

src/tfstate-context.tf

@@ -0,0 +1,70 @@
+variable "tfstate_assume_role" {
+  type        = bool
+  description = "Set to false to use the caller's role to access the Terraform remote state"
+  default     = true
+}
+
+variable "tfstate_existing_role_arn" {
+  type        = string
+  description = "The ARN of the existing IAM Role to access the Terraform remote state. If not provided and `remote_state_assume_role` is `true`, a role will be constructed from `remote_state_role_arn_template`"
+  default     = ""
+}
+
+variable "tfstate_account_id" {
+  type        = string
+  default     = ""
+  description = "The ID of the account where the Terraform remote state backend is provisioned"
+}
+
+variable "tfstate_role_arn_template" {
+  type        = string
+  default     = "arn:aws:iam::%s:role/%s-%s-%s-%s"
+  description = "IAM Role ARN template for accessing the Terraform remote state"
+}
+
+variable "tfstate_role_environment_name" {
+  type        = string
+  default     = "gbl"
+  description = "The name of the environment for Terraform state IAM role"
+}
+
+variable "tfstate_role_stage_name" {
+  type        = string
+  default     = "root"
+  description = "The name of the stage for Terraform state IAM role"
+}
+
+variable "tfstate_bucket_environment_name" {
+  type        = string
+  default     = ""
+  description = "The name of the environment for Terraform state bucket"
+}
+
+variable "tfstate_bucket_stage_name" {
+  type        = string
+  default     = "root"
+  description = "The name of the stage for Terraform state bucket"
+}
+
+variable "tfstate_role_name" {
+  type        = string
+  default     = "terraform"
+  description = "IAM Role name for accessing the Terraform remote state"
+}
+
+locals {
+  tfstate_access_role_arn = var.tfstate_assume_role ? (
+    (var.tfstate_existing_role_arn != null && var.tfstate_existing_role_arn != "") ? var.tfstate_existing_role_arn : (
+      format(var.tfstate_role_arn_template,
+        var.tfstate_account_id,
+        module.this.namespace,
+        var.tfstate_role_environment_name,
+        var.tfstate_role_stage_name,
+        var.tfstate_role_name
+      )
+    )
+  ) : null
+
+  tfstate_bucket         = "${module.this.namespace}-${var.tfstate_bucket_environment_name}-${var.tfstate_bucket_stage_name}-tfstate"
+  tfstate_dynamodb_table = "${module.this.namespace}-${var.tfstate_bucket_environment_name}-${var.tfstate_bucket_stage_name}-tfstate-lock"
+}