有没有办法从现有EC2实例中分离EBS卷并使用Terraform v0.9.2附加新的EBS卷？

我更喜欢替换该卷，而不是尝试销毁该实例并使用新卷创建一个新实例。 。

在分离卷之前，已从操作系统中的设备上卸载了文件系统，也没有从AWS控制台分离卷的问题。

resource "aws_ebs_volume" "create_volume" {
  availability_zone = "eu-central-1a"
  snapshot_id = "${data.aws_ebs_snapshot.mysql.id}"
  type = "gp2"
  tags {
    Name = "${var.instance_name}"
  }
}

resource "aws_volume_attachment" "mysql_data" {
  depends_on = ["null_resource.stop_mysql_service2"]
  device_name = "/dev/xvdf"
  volume_id = "${aws_ebs_volume.create_volume.0.id}"
  instance_id = "i-0d48be4266da"
  skip_destroy = true
  force_detach = true
}

$ ./terraform apply
data.aws_ebs_snapshot.mysql: Refreshing state...
aws_ebs_volume.create_volume: Creating...
  availability_zone: "" => "eu-central-1a"
  encrypted:         "" => "<computed>"
  iops:              "" => "<computed>"
  kms_key_id:        "" => "<computed>"
  size:              "" => "<computed>"
  snapshot_id:       "" => "snap-0afb2303c60f"
  tags.%:            "" => "1"
  tags.Name:         "" => "mysql"
  type:              "" => "gp2"
aws_ebs_volume.create_volume: Still creating... (10s elapsed)
aws_ebs_volume.create_volume: Creation complete (ID: vol-04c7f4)
null_resource.stop_mysql_service2: Creating...
null_resource.stop_mysql_service2: Provisioning with 'remote-exec'...
null_resource.stop_mysql_service2 (remote-exec): Connecting to remote host via SSH...
null_resource.stop_mysql_service2 (remote-exec):   Host: mysql
null_resource.stop_mysql_service2 (remote-exec):   User: ubuntu
null_resource.stop_mysql_service2 (remote-exec):   Password: false
null_resource.stop_mysql_service2 (remote-exec):   Private key: true
null_resource.stop_mysql_service2 (remote-exec):   SSH Agent: true
null_resource.stop_mysql_service2 (remote-exec): Connected!
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2: Still creating... (10s elapsed)
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec): .
null_resource.stop_mysql_service2 (remote-exec):  * Attempt to shutdown MySQL Community Server 5.6.35 timed out
null_resource.stop_mysql_service2: Still creating... (20s elapsed)
null_resource.stop_mysql_service2: Still creating... (30s elapsed)
null_resource.stop_mysql_service2: Creation complete (ID: 1850529311883)
aws_volume_attachment.mysql_data: Creating...
  device_name:  "" => "/dev/xvdf"
  force_detach: "" => "true"
  instance_id:  "" => "i-0d48be4266da"
  skip_destroy: "" => "true"
  volume_id:    "" => "vol-04c7f4"
aws_volume_attachment.mysql_data: Still creating... (10s elapsed)
Error applying plan:

1 error(s) occurred:

* aws_volume_attachment.mysql_data: 1 error(s) occurred:

* aws_volume_attachment.mysql_data: [WARN] Error attaching volume (vol-04c7f4) to instance (i-0d48be4266da), 
message: "Invalid value '/dev/xvdf' for unixDevice. Attachment point /dev/xvdf is already in use", code: "InvalidParameterValue"

Terraform does not automatically rollback in the face of errors.
Instead, your Terraform state file has been partially updated with
any resources that successfully completed. Please address the error
above and apply again to incrementally change your infrastructure.


#1 楼

不会分离旧卷，因为skip_destroy = true。从terraform文档中：


skip_destroy-（可选，布尔值）如果您不希望在销毁时将其与连接的实例分离，则将其设置为true，然后而是从Terraform状态中删除附件。当销毁具有通过其他方式创建的卷的实例时，此功能非常有用。附件。

您可能需要一次手动删除旧附件，我相信Terraform可能已经从状态中删除了它。