用Terraform恢复ElastiCache集群红宝石快照

Question

可以使用Terraform从快照创建ElastiCache集群Redis集群吗？

我没有看到类似于create-replication-group --node-group-configuration cli选项的Terraform选项。

错误：

Error creating Elasticache Replication Group: InvalidParameterCombination: Slots must be provided when restoring from snapshot ARNs with cluster mode enabled

Terraform：

resource "aws_elasticache_replication_group" "test-cluster" {
  replication_group_id          = "test-cluster"
  replication_group_description = "test cluster"
  node_type                     = "cache.r3.xlarge"
  parameter_group_name          = "default.redis3.2.cluster.on"
  port                          = 6379
  automatic_failover_enabled    = true
  subnet_group_name             = "${var.subnet_group_name}"
  security_group_ids            = ["${var.security_group_id}"]
  cluster_mode {
    replicas_per_node_group     = 3
    num_node_groups             = 3
  }
  snapshot_arns                 = ["${var.snapshot_arns}"]
}

Answer 1

刚刚从AWS得到了一个答案，但terraform还不可能这样做，您需要使用sdk、cli或控制台来完成这个任务，因为这个特性是在last2016中添加的。https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/Replication.CreatingReplGroup.NoExistingCluster.Cluster.html#Replication.CreatingReplGroup.NoExistingCluster.Cluster.API

aws elasticache create-replication-group ^
  --replication-group-id rc-rg ^
  --replication-group-description "Sharded replication group" ^
  --engine redis ^
  --engine-version 3.2.4 ^
  --cache-parameter-group default.redis3.2.cluster.on ^
  --snapshot-retention-limit 8 ^
  --cache-node-type cache.m4.medium ^
  --num-node-groups 2 ^
  --node-group-configuration \
      "ReplicaCount=1,Slots=0-8999,PrimaryAvailabilityZone='us-east-1c',ReplicaAvailabilityZones='us-east-1b'" \
      "ReplicaCount=2,Slots=9000-16383,PrimaryAvailabilityZone='us-east-1a',ReplicaAvailabilityZones='us-east-1a','us-east-1c'"