Resize disk destroy and recreate vm

[amarlot]

Hi there,

Thank you for opening an issue. Please note that we try to keep the Terraform issue tracker reserved for bug reports and feature requests. For general usage questions, please see: https://www.terraform.io/community.html.

Terraform Version

v0.10.7

Affected Resource(s)

Please list the resources as a list, for example:

• google_compute_disk
• google_compute_instance

Terraform Configuration Files

resource "google_compute_disk" "disk" {
name = "disk"
type = "pd-standard"
zone = "europe-west1-b"
size = "50"
image = "debian-cloud/debian-8"
}

resource "google_compute_instance" "vm" {
name = "vm"
machine_type = "n1-standard-1"
zone = "europe-west1-b"

boot_disk {
source ="${google_compute_disk.disk.self_link}"
}

network_interface {
subnetwork = "default"

}

service_account {
scopes = ["userinfo-email", "compute-ro", "storage-ro"]
}
min_cpu_platform="Intel Skylake"

}

Expected Behavior

From what I saw there : hashicorp/terraform#15077, GCP provider support resize of disk without delete/recreate the instance.

Actual Behavior

When i re-run the script with size = "70". The VM is deleted and recreated.
GCP is able to resize the disk on the fly even boot disk so I expect to have the size increased but without deleting re-creating the VM.

Steps to Reproduce

1. terraform apply on the script above
2. change size of the disk to 70
3. terraform apply

References

hashicorp/terraform#15077

[rosbo]

Hi,

Resizing disk while the instance is running is already supported. The problem came from a diff in the image field causing a ForceNew.

image:                      "https://www.googleapis.com/compute/v1/projects/debian-cloud/global/images/debian-8-jessie-v20171213" => "debian-cloud/debian-8" (forces new resource)

I opened a PR to fix this.

[ghost]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.

If you feel this issue should be reopened, we encourage creating a new issue linking back to this one for added context. If you feel I made an error 🤖 🙉 , please reach out to my human friends 👉 hashibot-feedback@hashicorp.com. Thanks!