AWS Redshift平台模块: final_snapshot_identifier

Question

我使用AWS redshift Terraform模块https://github.com/terraform-aws-modules/terraform-aws-redshift来配置Redshift。对于每个文档，final_snapshot_identifier都不是必需的。但是，我得到了一个错误，错误:在"final_snapshot_identifier“中只允许字母数字字符和连字符。文档中说："final_snapshot_identifier：(可选)在删除集群之前要创建的最终快照的标识符。如果提供了这个参数，'skip_final_snapshot‘必须为false"，我可以通过添加代码来解决这个问题。

final_snapshot_identifier  = var.final_snapshot_identifier
skip_final_snapshot        = true

但是，为什么？

module "redshift" {
  source  = "terraform-aws-modules/redshift/aws"
  version = "2.7.0"

  #redshift_subnet_group_name = var.redshift_subnet_group_name
  subnets                    = data.terraform_remote_state.vpc.outputs.redshift_subnets
  #parameter_group_name       = var.parameter_group_name
  cluster_identifier         = var.cluster_identifier
  cluster_database_name      = var.cluster_database_name
  encrypted                  = false
  cluster_master_password    = var.cluster_master_password
  cluster_master_username    = var.cluster_master_username
  cluster_node_type          = var.cluster_node_type
  cluster_number_of_nodes    = var.cluster_number_of_nodes
  enhanced_vpc_routing       = false
  publicly_accessible        = true
  vpc_security_group_ids     = [module.sg.this_security_group_id]
  final_snapshot_identifier  = var.final_snapshot_identifier
  skip_final_snapshot        = true
}

Answer 1

如果为最终快照识别符提供值，则skip_final_snapshot应为false。但你给的是真的

final_snapshot_identifier = var.final_snapshot_identifier skip_final_snapshot = true