Fix duplicate dummy templates, and update guest os for dummy template by sureshanaparti · Pull Request #12780 · apache/cloudstack

sureshanaparti · 2026-03-10T09:35:04Z

Description

This PR fixes duplicate dummy templates, and updates guest os to "Other Linux (64-bit)", id: 99 for dummy template from existing "CentOS 4.5 (32-bit)", id: 1.

mysql> select id,type,format,guest_os_id from vm_template where name='kvm-default-vm-import-dummy-template';
+-----+--------+--------+-------------+
| id  | type   | format | guest_os_id |
+-----+--------+--------+-------------+
| 203 | SYSTEM | ISO    |           1 |
| 204 | SYSTEM | ISO    |           1 |
| 205 | SYSTEM | ISO    |           1 |
| 213 | SYSTEM | ISO    |           1 |
| 214 | SYSTEM | ISO    |           1 |
| 215 | SYSTEM | ISO    |           1 |
| 216 | SYSTEM | ISO    |           1 |
| 217 | SYSTEM | ISO    |           1 |
| 218 | SYSTEM | ISO    |           1 |
| 219 | SYSTEM | ISO    |           1 |
| 220 | SYSTEM | ISO    |           1 |
| 221 | SYSTEM | ISO    |           1 |
| 222 | SYSTEM | ISO    |           1 |
| 223 | SYSTEM | ISO    |           1 |
| 224 | SYSTEM | ISO    |           1 |
| 225 | SYSTEM | ISO    |           1 |
| 226 | SYSTEM | ISO    |           1 |
| 227 | SYSTEM | ISO    |           1 |
| 228 | SYSTEM | ISO    |           1 |
| 229 | SYSTEM | ISO    |           1 |
| 230 | SYSTEM | ISO    |           1 |
| 231 | SYSTEM | ISO    |           1 |
+-----+--------+--------+-------------+

Types of changes

Breaking change (fix or feature that would cause existing functionality to change)
New feature (non-breaking change which adds functionality)
Bug fix (non-breaking change which fixes an issue)
Enhancement (improves an existing feature and functionality)
Cleanup (Code refactoring and cleanup, that may add test cases)
Build/CI
Test (unit or integration test code)

Feature/Enhancement Scale or Bug Severity

Feature/Enhancement Scale

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Minor

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Screenshots (if appropriate):

How Has This Been Tested?

How did you try to break this feature and the system with this change?

…ntries

…m existing id: 1 (CentOS 4.5 (32-bit))

sureshanaparti · 2026-03-10T09:35:54Z

@blueorangutan package

blueorangutan · 2026-03-10T09:38:04Z

@sureshanaparti a [SL] Jenkins job has been kicked to build packages. It will be bundled with KVM, XenServer and VMware SystemVM templates. I'll keep you posted as I make progress.

codecov · 2026-03-10T09:52:25Z

Codecov Report

❌ Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 17.61%. Comparing base (7aa0558) to head (08cf2be).

Files with missing lines	Patch %	Lines
.../apache/cloudstack/vm/UnmanagedVMsManagerImpl.java	50.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               4.22   #12780      +/-   ##
============================================
- Coverage     17.61%   17.61%   -0.01%     
  Complexity    15664    15664              
============================================
  Files          5917     5917              
  Lines        531402   531405       +3     
  Branches      64971    64971              
============================================
- Hits          93596    93595       -1     
- Misses       427252   427255       +3     
- Partials      10554    10555       +1

Flag	Coverage Δ
uitests	`3.70% <ø> (ø)`
unittests	`18.68% <50.00%> (-0.01%)`	⬇️

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Copilot

Pull request overview

Stops creation of duplicate KVM VM-import dummy templates by selecting the correct template name per hypervisor, and updates the KVM dummy template’s guest OS to “Other Linux (64-bit)” (id 99).

Changes:

Use a KVM-specific dummy template name when importing on KVM to avoid repeatedly creating new templates.
Change the dummy template guest OS id from 1 to 99 in code.
Add a DB migration to update existing KVM dummy templates’ guest_os_id to 99.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
server/src/main/java/org/apache/cloudstack/vm/UnmanagedVMsManagerImpl.java	Uses KVM-specific template lookup/creation and updates dummy template guest OS to id 99.
engine/schema/src/main/resources/META-INF/db/schema-42200to42210.sql	Migrates existing KVM dummy template rows to `guest_os_id = 99`.

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Copilot · 2026-03-10T10:43:42Z

server/src/main/java/org/apache/cloudstack/vm/UnmanagedVMsManagerImpl.java

-                template = createDefaultDummyVmImportTemplate(Hypervisor.HypervisorType.KVM == hypervisorType);
+                template = createDefaultDummyVmImportTemplate(isKVMHypervisor);
                if (template == null) {
                    throw new InvalidParameterValueException(String.format("Default VM import template with unique name: %s for hypervisor: %s cannot be created. Please use templateid parameter for import", VM_IMPORT_DEFAULT_TEMPLATE_NAME, hypervisorType.toString()));


The exception message always formats the template name using VM_IMPORT_DEFAULT_TEMPLATE_NAME, even though the code now conditionally uses templateName (e.g., KVM_VM_IMPORT_DEFAULT_TEMPLATE_NAME for KVM). This will report the wrong template name for KVM and mislead operators. Use templateName in the formatted message (and you can pass hypervisorType directly instead of hypervisorType.toString()).

Suggested change

throw new InvalidParameterValueException(String.format("Default VM import template with unique name: %s for hypervisor: %s cannot be created. Please use templateid parameter for import", VM_IMPORT_DEFAULT_TEMPLATE_NAME, hypervisorType.toString()));

throw new InvalidParameterValueException(String.format("Default VM import template with unique name: %s for hypervisor: %s cannot be created. Please use templateid parameter for import", templateName, hypervisorType));

Copilot · 2026-03-10T10:43:42Z

server/src/main/java/org/apache/cloudstack/vm/UnmanagedVMsManagerImpl.java

            template = VMTemplateVO.createSystemIso(templateDao.getNextInSequence(Long.class, "id"), templateName, templateName, true,
                    "", true, 64, Account.ACCOUNT_ID_SYSTEM, "",
-                    "VM Import Default Template", false, 1);
+                    "VM Import Default Template", false, 99);


The guest OS id 99 is a magic number here, which makes the intent harder to understand and couples behavior to a specific seeded DB id. Prefer using a named constant (e.g., OTHER_LINUX_64_GUEST_OS_ID) or resolving the guest OS id via a DAO lookup by a stable key/name, so this remains readable and robust across variations in guest OS seed data.

Copilot · 2026-03-10T10:43:43Z

engine/schema/src/main/resources/META-INF/db/schema-42200to42210.sql

 -- Update configuration 'kvm.ssh.to.agent' description and is_dynamic fields
 UPDATE `cloud`.`configuration` SET description = 'True if the management server will restart the agent service via SSH into the KVM hosts after or during maintenance operations', is_dynamic = 1 WHERE name = 'kvm.ssh.to.agent';
+
+UPDATE `cloud`.`vm_template` SET guest_os_id = 99 WHERE name = 'kvm-default-vm-import-dummy-template';


This UPDATE targets rows by name only. To reduce the risk of unintentionally modifying non-system templates (or future templates) that happen to share the same name, consider narrowing the predicate (e.g., also filter on type = 'SYSTEM' and format = 'ISO' if that matches the intended rows).

Suggested change

UPDATE `cloud`.`vm_template` SET guest_os_id = 99 WHERE name = 'kvm-default-vm-import-dummy-template';

UPDATE `cloud`.`vm_template`

SET guest_os_id = 99

WHERE name = 'kvm-default-vm-import-dummy-template'

AND type = 'SYSTEM'

AND format = 'ISO';

Copilot · 2026-03-10T10:43:43Z

engine/schema/src/main/resources/META-INF/db/schema-42200to42210.sql

 -- Update configuration 'kvm.ssh.to.agent' description and is_dynamic fields
 UPDATE `cloud`.`configuration` SET description = 'True if the management server will restart the agent service via SSH into the KVM hosts after or during maintenance operations', is_dynamic = 1 WHERE name = 'kvm.ssh.to.agent';
+
+UPDATE `cloud`.`vm_template` SET guest_os_id = 99 WHERE name = 'kvm-default-vm-import-dummy-template';


The PR description shows many duplicate rows for kvm-default-vm-import-dummy-template. This migration updates guest_os_id but does not address the existing duplicates, so the system can continue operating with ambiguous data (and findByName may pick an arbitrary row depending on query ordering). Consider adding a migration step to de-duplicate (e.g., keep a single canonical row and mark others removed/unused) to make behavior deterministic and align with the PR’s stated goal of fixing duplicates.

Suggested change

UPDATE `cloud`.`vm_template` SET guest_os_id = 99 WHERE name = 'kvm-default-vm-import-dummy-template';

-- De-duplicate 'kvm-default-vm-import-dummy-template' entries and update guest_os_id

-- Keep the template with the smallest id as the canonical one and mark others as removed

UPDATE `cloud`.`vm_template` t

JOIN (

SELECT MIN(id) AS keep_id

FROM `cloud`.`vm_template`

WHERE name = 'kvm-default-vm-import-dummy-template'

) k ON t.id != k.keep_id

SET t.removed = NOW()

WHERE t.name = 'kvm-default-vm-import-dummy-template'

AND t.removed IS NULL;

-- Update guest_os_id only for the canonical template

UPDATE `cloud`.`vm_template` t

JOIN (

SELECT MIN(id) AS keep_id

FROM `cloud`.`vm_template`

WHERE name = 'kvm-default-vm-import-dummy-template'

AND removed IS NULL

) k ON t.id = k.keep_id

SET t.guest_os_id = 99;

blueorangutan · 2026-03-10T11:00:36Z

Packaging result [SF]: ✔️ el8 ✔️ el9 ✔️ el10 ✔️ debian ✔️ suse15. SL-JID 17066

sureshanaparti added 2 commits March 10, 2026 14:50

Fix duplicate dummy template 'kvm-default-vm-import-dummy-template' e…

cb9cc53

…ntries

Update guest os id of dummy template to 99 (Other Linux (64-bit)) fro…

08cf2be

…m existing id: 1 (CentOS 4.5 (32-bit))

sureshanaparti requested a review from Copilot March 10, 2026 10:37

Copilot started reviewing on behalf of sureshanaparti March 10, 2026 10:43 View session

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Fix duplicate dummy templates, and update guest os for dummy template#12780

Fix duplicate dummy templates, and update guest os for dummy template#12780
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	throw new InvalidParameterValueException(String.format("Default VM import template with unique name: %s for hypervisor: %s cannot be created. Please use templateid parameter for import", VM_IMPORT_DEFAULT_TEMPLATE_NAME, hypervisorType.toString()));
	throw new InvalidParameterValueException(String.format("Default VM import template with unique name: %s for hypervisor: %s cannot be created. Please use templateid parameter for import", templateName, hypervisorType));

-UPDATE `cloud`.`vm_template` SET guest_os_id = 99 WHERE name = 'kvm-default-vm-import-dummy-template';
+-- De-duplicate 'kvm-default-vm-import-dummy-template' entries and update guest_os_id
+-- Keep the template with the smallest id as the canonical one and mark others as removed
+UPDATE `cloud`.`vm_template` t
+JOIN (
+    SELECT MIN(id) AS keep_id
+    FROM `cloud`.`vm_template`
+    WHERE name = 'kvm-default-vm-import-dummy-template'
+) k ON t.id != k.keep_id
+SET t.removed = NOW()
+WHERE t.name = 'kvm-default-vm-import-dummy-template'
+  AND t.removed IS NULL;
+-- Update guest_os_id only for the canonical template
+UPDATE `cloud`.`vm_template` t
+JOIN (
+    SELECT MIN(id) AS keep_id
+    FROM `cloud`.`vm_template`
+    WHERE name = 'kvm-default-vm-import-dummy-template'
+      AND removed IS NULL
+) k ON t.id = k.keep_id
+SET t.guest_os_id = 99;

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Description

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