provider/google: detach disks before deleting them. #14651
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When a `google_compute_disk` is attached to a `google_compute_instance`, deleting can be tricky. GCP doesn't allow disks that are attached to instances to be deleted. Normally, this is fine; the instance depends on the disk, so by the time the disk is deleted, the instance should already be gone. However, some reports have cropped up (#8667) that deleting disks is failing because they're still attached to instances. Though this shouldn't happen, it appears it can happen under some unknown conditions. This PR adds logic that will attempt to detach disks from any instances they're attached to before deleting the disks, adding another safeguard that should prevent this behaviour.
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Tests pass, merging. :) |
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When a
google_compute_diskis attached to agoogle_compute_instance,deleting can be tricky. GCP doesn't allow disks that are attached to
instances to be deleted. Normally, this is fine; the instance depends on
the disk, so by the time the disk is deleted, the instance should
already be gone.
However, some reports have cropped up (#8667) that deleting disks is
failing because they're still attached to instances. Though this
shouldn't happen, it appears it can happen under some unknown
conditions.
This PR adds logic that will attempt to detach disks from any instances
they're attached to before deleting the disks, adding another safeguard
that should prevent this behaviour.