The DigitalOcean API v2 supports creating a block storage volume from
a previously-saved snapshot using a snapshot_id string. This module now
likewise supports creating a block storage volume using a valid
snapshot_id string.
When creating a block storage volume from a snapshot_id using the
DigitalOcean API, the region and size_gigabytes parameters are ignored.
Therefore, these parameters are likewise ignored when using this module.
However, as of this commit, they are still required fields. It may be
necessary to find some way to eliminate these requirements if the
snapshot_id parameter is included.
The DigitalOcean API v2 allows for creating a block storage volume from
a previously-saved snapshot using the snapshot_id parameter. If this
parameter is used, the region and size_gigabytes parameters are
disregarded. In order to avoid confusion, when the snapshot_id parameter
is included when creating a block storage volume using this module, the
region and block_size fields are overridden and changed to null values.
This should make it clear that these values are NOT being used if a
snapshot_id is present.
This module will still fail as before if neither the region/block_size
or snapshot_id is not present when creating a block storage volume.
Documentation has been updated to reflect these changes.
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