The GCP image import method currently use the Cloud Build API with
Google's Daisy workflow. This workflow creates multiple GCE resources
during its execution. Although the desired Region for the imported image
is specified as a workflow argument, this has no effect on the GCE
Zone used by the workflow for created resources. By default it seems
to default to "us-central1-a" Zone. As a result, there are common cases
of resources being exhausted in the default zone.
Add a method, which translates provided Google Storage Region to a GCE
Region, which is needed mainly for multi and dual Storage Regions.
Add a method, which returns a list of available GCE Zones for a given
GCE Region.
Modify the ComputeImageImport() method to translate the provided Google
Storage Region to list of corresponding GCE Regions. If the provided
Storage Region is not multi or dual Region, then the list contains only
a single item, the provided Region. Then pick a random Region from the
list. Subsequently get available GCE Zones within the Region and pick a
random one for use by the workflow. Specify the GCE Zone to use as a
build step argument.
This change should be completely transparent to the API user.
Signed-off-by: Tomas Hozza <thozza@redhat.com>
27c5aafeca