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feat: initial version (#2)
* init * init * removed versions.tf * terraform block * replicate_source_db var type fix * vars * provider * db subnet group * db parameter group * db parameter group * db parameter group * simplified multi-replicas creation * role associations * outputs * outputs * fmt * custom replicas * custom replicas * restore_to_point_in_time * snapshot_identifier added to ignore_changes * timeouts * docs - replication * tags * examples * fmt
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‎README.md

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‎examples/basic/main.tf

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module "example" {
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source = "github.com/opsd-io/terraform-module-aws-rds-postgres"
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instance_name = "example"
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engine_version = "16.3"
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instance_class = "db.t4g.micro"
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username = "dbadmin"
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password = "avoid-plaintext-passwords"
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max_allocated_storage = 30
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common_tags = {
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"Env" = "test"
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}
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}

‎examples/basic/terraform.tf

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terraform {
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required_version = ">= 1.5.5"
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required_providers {
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aws = {
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source = "hashicorp/aws"
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version = ">= 5.50.0"
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}
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}
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}
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provider "aws" {}

‎examples/example_of_use/.tool-versions

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‎examples/example_of_use/README.mkdn

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‎examples/example_of_use/main.tf

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‎examples/example_of_use/versions.tf

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‎main.tf

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# Terraform code goes here
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terraform {
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required_version = ">= 1.5.5"
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required_providers {
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aws = {
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source = "hashicorp/aws"
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version = ">= 5.50.0"
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}
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}
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}
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locals {
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db_subnet_group_name = var.db_subnet_group_name != null ? var.db_subnet_group_name : var.instance_name
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parameter_group_name = var.parameter_group_name != null ? var.parameter_group_name : (length(var.parameter_group_list) > 0 ? var.instance_name : null)
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}
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resource "aws_db_parameter_group" "main" {
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count = length(var.parameter_group_list) > 0 ? 1 : 0
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name = local.parameter_group_name
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family = var.parameter_group_family
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tags = var.common_tags
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dynamic "parameter" {
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for_each = var.parameter_group_list
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content {
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name = parameter.value.name
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value = parameter.value.value
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apply_method = lookup(parameter.value, "apply_method", null)
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}
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}
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lifecycle {
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create_before_destroy = true
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}
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}
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resource "aws_db_subnet_group" "main" {
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count = var.subnet_ids != null && try(length(var.subnet_ids) > 0) ? 1 : 0
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name = local.db_subnet_group_name
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subnet_ids = var.subnet_ids
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tags = var.common_tags
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}
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resource "aws_db_instance" "main" {
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allocated_storage = var.allocated_storage
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auto_minor_version_upgrade = var.auto_minor_version_upgrade
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availability_zone = var.availability_zone
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backup_retention_period = var.backup_retention_period
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backup_window = var.backup_window
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blue_green_update {
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enabled = var.blue_green_update_enabled
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}
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ca_cert_identifier = var.ca_cert_identifier
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copy_tags_to_snapshot = var.copy_tags_to_snapshot
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custom_iam_instance_profile = var.custom_iam_instance_profile
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db_name = var.db_name
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db_subnet_group_name = local.db_subnet_group_name
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dedicated_log_volume = var.dedicated_log_volume
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delete_automated_backups = var.delete_automated_backups
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deletion_protection = var.deletion_protection
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enabled_cloudwatch_logs_exports = var.enabled_cloudwatch_logs_exports
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engine = "postgres"
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engine_version = var.engine_version
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final_snapshot_identifier = var.final_snapshot_identifier
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iam_database_authentication_enabled = var.iam_database_authentication_enabled
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instance_class = var.instance_class
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identifier = var.instance_name
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iops = var.iops
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kms_key_id = var.kms_key_id
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maintenance_window = var.maintenance_window
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manage_master_user_password = var.manage_master_user_password
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max_allocated_storage = var.max_allocated_storage
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monitoring_interval = var.monitoring_interval
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monitoring_role_arn = var.monitoring_role_arn
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multi_az = var.multi_az
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network_type = var.network_type
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parameter_group_name = local.parameter_group_name
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password = var.password
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performance_insights_enabled = var.performance_insights_enabled
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performance_insights_kms_key_id = var.performance_insights_kms_key_id
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performance_insights_retention_period = var.performance_insights_retention_period
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port = var.port
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publicly_accessible = var.publicly_accessible
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skip_final_snapshot = var.skip_final_snapshot
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snapshot_identifier = var.snapshot_identifier
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storage_encrypted = var.storage_encrypted
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storage_throughput = var.storage_throughput
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storage_type = var.storage_type
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tags = merge(
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var.common_tags,
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var.instance_tags,
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{ Name = var.instance_name },
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var.tags
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)
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username = var.username
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vpc_security_group_ids = var.vpc_security_group_ids
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dynamic "restore_to_point_in_time" {
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for_each = var.snapshot_identifier == null && length(var.restore_to_point_in_time) > 0 ? [1] : []
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content {
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restore_time = lookup(var.restore_to_point_in_time, "restore_time", null)
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source_db_instance_identifier = lookup(var.restore_to_point_in_time, "source_db_instance_identifier", null)
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source_db_instance_automated_backups_arn = lookup(var.restore_to_point_in_time, "source_db_instance_automated_backups_arn", null)
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source_dbi_resource_id = lookup(var.restore_to_point_in_time, "source_dbi_resource_id", null)
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use_latest_restorable_time = lookup(var.restore_to_point_in_time, "use_latest_restorable_time", null)
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}
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}
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lifecycle {
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ignore_changes = [
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snapshot_identifier
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]
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}
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timeouts {
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create = var.timeouts.create
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update = var.timeouts.update
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delete = var.timeouts.delete
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}
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}
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resource "aws_db_instance_role_association" "main" {
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for_each = var.role_associations
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db_instance_identifier = aws_db_instance.main.identifier
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feature_name = each.key
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role_arn = each.value
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}
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resource "aws_db_instance" "replica" {
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count = var.replica_enabled ? 1 : 0
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replicate_source_db = aws_db_instance.main.identifier
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instance_class = var.instance_class
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availability_zone = var.replica_availability_zone
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identifier = var.replica_name != null ? var.replica_name : "${var.instance_name}-replica"
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auto_minor_version_upgrade = var.auto_minor_version_upgrade
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skip_final_snapshot = var.skip_final_snapshot
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tags = merge(
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var.common_tags,
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var.instance_tags,
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{ Name = var.replica_name != null ? var.replica_name : "${var.instance_name}-replica" },
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var.replica_tags
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)
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}
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resource "aws_db_instance" "multi_replica" {
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count = var.number_of_replicas
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replicate_source_db = aws_db_instance.main.identifier
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instance_class = var.instance_class
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identifier = var.replica_name != null ? "${var.replica_name}-${count.index + 1}" : "${var.instance_name}-replica-${count.index + 1}"
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auto_minor_version_upgrade = var.auto_minor_version_upgrade
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skip_final_snapshot = var.skip_final_snapshot
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tags = merge(
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var.common_tags,
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var.instance_tags,
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{ Name = var.replica_name != null ? "${var.replica_name}-${count.index + 1}" : "${var.instance_name}-replica-${count.index + 1}" },
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var.replica_tags
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)
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}
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resource "aws_db_instance" "custom_replica" {
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for_each = var.custom_replicas
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replicate_source_db = aws_db_instance.main.identifier
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instance_class = try(each.value.instance_class)
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availability_zone = try(each.value.availability_zone)
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identifier = each.key
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auto_minor_version_upgrade = var.auto_minor_version_upgrade
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skip_final_snapshot = var.skip_final_snapshot
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tags = merge(
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var.common_tags,
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var.instance_tags,
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{ Name = each.key },
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var.replica_tags,
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try(each.value.tags, {})
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)
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}

‎outputs.tf

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# output "variable" {
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# description = "output variable description"
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# value = variable.main.name
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# }
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output "db_instance_address" {
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description = "The address of the RDS instance."
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value = aws_db_instance.main.address
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}
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output "db_instance_arn" {
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description = "The ARN of the RDS instance."
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value = aws_db_instance.main.arn
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}
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output "db_instance_availability_zone" {
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description = "The availability zone of the RDS instance."
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value = aws_db_instance.main.availability_zone
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}
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output "db_instance_backup_retention_period" {
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description = "The backup window of the RDS instance."
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value = aws_db_instance.main.backup_retention_period
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}
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output "db_instance_backup_window" {
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description = "The backup retention period of the RDS instance."
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value = aws_db_instance.main.backup_window
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}
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output "db_instance_endpoint" {
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description = "The connection endpoint of the RDS instance."
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value = aws_db_instance.main.endpoint
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}
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output "db_instance_identifier" {
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description = "The RDS instance identifier."
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value = aws_db_instance.main.identifier
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}
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output "db_instance_engine_version_actual" {
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description = "The running version of the RDS instance."
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value = aws_db_instance.main.engine_version_actual
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}
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output "db_instance_maintenance_window" {
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description = "The maintenance window of the RDS instance."
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value = aws_db_instance.main.maintenance_window
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}
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output "db_instance_status" {
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description = "The status of the RDS instance."
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value = aws_db_instance.main.status
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}
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output "db_instance_replica_availability_zone" {
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description = "The availability zone of the replica instance."
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value = length(aws_db_instance.replica) > 0 ? aws_db_instance.replica[0].availability_zone : null
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}

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