ec2_vol - support changing from volume without IOPS to one with IOPS (

#627) (#640)

[PR #627/a9b9bd13 backport][stable-2] `ec2_vol` - support changing from volume without IOPS to one with IOPS

This is a backport of PR #627 as merged into main (a9b9bd1).
SUMMARY

Fixes #626
Changing from standard volume type to gp3 failed when the module was trying to read the "original" IOPS value from the existing volume, since it doesn't have one.
See the linked issue for detailed description.

ISSUE TYPE


Bugfix Pull Request

COMPONENT NAME

ec2_vol
ADDITIONAL INFORMATION



N/A

Reviewed-by: Jill R <None>

changelogs/fragments/626-ec2_vol-iops-when-source-does-not-have-iops.yml

@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - ec2_vol - changing a volume from a type that does not support IOPS (like ``standard``) to a type that does (like ``gp3``) fails (https://github.com/ansible-collections/amazon.aws/issues/626).

plugins/modules/ec2_vol.py

@@ -379,8 +379,8 @@ def update_volume(module, ec2_conn, volume):
 
         iops_changed = False
         target_iops = module.params.get('iops')
+        original_iops = volume.get('iops')
         if target_iops:
-            original_iops = volume['iops']
             if target_iops != original_iops:
                 iops_changed = True
                 req_obj['Iops'] = target_iops
@@ -392,7 +392,7 @@ def update_volume(module, ec2_conn, volume):
             # otherwise, the default iops value is applied.
             if type_changed and target_type == 'gp3':
                 if (
-                    (volume['iops'] and (int(volume['iops']) < 3000 or int(volume['iops']) > 16000)) or not volume['iops']
+                    (original_iops and (int(original_iops) < 3000 or int(original_iops) > 16000)) or not original_iops
                 ):
                     req_obj['Iops'] = 3000
                     iops_changed = True

tests/integration/targets/ec2_vol/tasks/main.yml

@@ -286,7 +286,7 @@
         instance: "{{ test_instance.instance_ids[0] }}"
         device_name: /dev/sdh
         volume_size: 1
-        volume_type: gp2
+        volume_type: standard
         name: '{{ resource_prefix }} - sdh'
         tags:
           "lowercase spaced": 'hello cruel world'
@@ -316,7 +316,7 @@
         instance: "{{ test_instance.instance_ids[0] }}"
         device_name: /dev/sdh
         volume_size: 1
-        volume_type: gp2
+        volume_type: standard
         tags:
           ResourcePrefix: "{{ resource_prefix }}"
       check_mode: true
@@ -332,7 +332,7 @@
         instance: "{{ test_instance.instance_ids[0] }}"
         device_name: /dev/sdh
         volume_size: 1
-        volume_type: gp2
+        volume_type: standard
         tags:
           ResourcePrefix: "{{ resource_prefix }}"
       register: new_vol_attach_result_idem
@@ -350,7 +350,7 @@
         id: "{{ new_vol_attach_result.volume.id }}"
         device_name: /dev/sdh
         volume_size: 1
-        volume_type: gp2
+        volume_type: standard
         tags:
           "lowercase spaced": 'hello cruel world ❤️'
           "Title Case": 'Hello Cruel World ❤️'
@@ -370,7 +370,7 @@
           - "'size' in new_vol_attach_result.volume"
           - new_vol_attach_result.volume.size == 1
           - "'volume_type' in new_vol_attach_result"
-          - new_vol_attach_result.volume_type == 'gp2'
+          - new_vol_attach_result.volume_type == 'standard'
           - "'tags' in new_vol_attach_result.volume"
           - (new_vol_attach_result.volume.tags | length) == 6
           - new_vol_attach_result.volume.tags["lowercase spaced"] == 'hello cruel world ❤️'