scalable function issue

[hehehehe123]

Hi' I used this module a few days, then i found out that when i try to scalable the 2 instance the 3 instance or more, it will recreate all instance resource, the old instance data will be lose, Did you has
some idea about this thing.

[Lexsss]

hi @hehehehe123 , thx for support our project, may I ask the complete process of this operation?

[hehehehe123]

Thanks for reply, refer the main.tf file.

`` module "tf-instances" {

source = "alibaba/ecs-instance/alicloud"

vswitch_id = "vsw-wqrw3c423"
group_ids = ["sg-f2c2fwqvs"]
private_ips = ["172.16.1.10", "172.16.1.20"]

disk_category = "cloud_ssd"
disk_name = "my_module_disk"
disk_size = "50"
number_of_disks = 2

instance_name = "my_module_instances"
host_name = "my-host"
internet_charge_type = "PayByTraffic"
number_of_instances = "2"

key_name = "for-ecs-instance-module"

}
``
There has a variable: number_of_instances = "2"
When i change this value from 2 to 3 or more, it will recreate all instances. I want add 1 not recreate. How can I do that.

[Lexsss]

Hi @hehehehe123 , you can't modify the field number_of_instances only, it's should be modified with the field private_ips, just add 1 ip is ok.
btw, I've tried to create the instances like your way, and got

I just modified 2 fields number_of_instances and private_ips, could you try again?

If the problem still occurs, please show the terraform plan log to us before your every terraform apply.