[BACKPORT 2024.2.1][PLAT-16404] Handle Azure images with no plan info…

…rmation

Summary:
We always try to compute the plan information for an image regardless of whether use_plan is specified or not, which sometimes comes into issues when the image tags don't have certain fields we expect containing plan information specified. With recent YBM incident with Azure images, plan information may have been removed from packer process for some images, so code needs to be more robust to handle those situations.
Original commit: 1e297c2 / D41202

Test Plan: Test with /subscriptions/dc8d5676-65d2-4322-849b-d23b84e54d26/resourceGroups/yugabyte-ami-rg/providers/Microsoft.Compute/galleries/yugabyte_amis_gallery/images/yugabyte-db-ami-almalinux-8-gen2-x86-64/versions/1.0.2528

Reviewers: asharma, cwang

Reviewed By: cwang

Subscribers: yugaware, daniel

Differential Revision: https://phorge.dev.yugabyte.com/D41353

managed/devops/opscli/ybops/cloud/azure/utils.py

@@ -890,9 +890,9 @@ def create_or_update_vm(self, vm_name, zone, num_vols, private_key_file, volume_
             # Otherwise, we try to extract this info from the purchase plan
             # or identifier of the image definition.
             if (image_tags is not None
-                    and image_tags['PlanPublisher'] is not None
-                    and image_tags['PlanProduct'] is not None
-                    and image_tags['PlanInfo'] is not None):
+                    and image_tags.get('PlanPublisher', None) is not None
+                    and image_tags.get('PlanProduct', None) is not None
+                    and image_tags.get('PlanInfo', None) is not None):
                 plan = {
                     "publisher": image_tags['PlanPublisher'],
                     "product": image_tags['PlanProduct'],
@@ -916,9 +916,9 @@ def create_or_update_vm(self, vm_name, zone, num_vols, private_key_file, volume_
                 image_identifier = gallery_image.as_dict().get('identifier')
                 logging.info("Gallery Image identifier = " + str(image_identifier))
                 if (image_identifier is not None
-                        and image_identifier["publisher"] is not None
-                        and image_identifier["offer"] is not None
-                        and image_identifier["sku"] is not None):
+                        and image_identifier.get("publisher", None) is not None
+                        and image_identifier.get("offer", None) is not None
+                        and image_identifier.get("sku", None) is not None):
                     plan = {
                         "publisher": image_identifier["publisher"],
                         "product": image_identifier["offer"],