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add deprecation warning for remove garbage collector dead code #2253

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@Ahmad-Hafe Ahmad-Hafe commented Dec 23, 2024

Short description:

add deprecation warning for future removing DataVolume garbage collection, as part of Remove dead code and unneeded tests

More details:

DataVolume garbage collection was a feature added in 4.12 in an effort to better integrate with data protection and disaster recovery products. Unfortunately it ended up causing more problems than it solved and was disabled via feature gate in 4.14. We still have the feature gate and code and tests for a feature we don't intend anyone

What this PR does / why we need it:

this code is not going to be used in the wrapper in future, so adding deprecation warning

Which issue(s) this PR fixes:

this fixe's and modify the exsists code and prepare warning for deprecation warning

Special notes for reviewer:

https://issues.redhat.com/browse/CNV-53179

Bug:

Summary by CodeRabbit

Summary by CodeRabbit

  • New Features

    • Added warnings regarding the deprecation of garbage collection functionality for DataVolume.
  • Documentation

    • Updated to inform users about the impending removal of garbage collection features.

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coderabbitai bot commented Dec 23, 2024

Walkthrough

The changes in the ocp_resources/datavolume.py file involve updates to the DataVolume class to include warnings about the deprecation of garbage collection functionality. Specifically, a deprecation warning has been added in the wait_for_dv_success method to inform users that the garbage collector will be removed in version v1.62. Additionally, the documentation for the dv_garbage_collection_enabled parameter has been updated to reflect its deprecation and removal in version v4.19. The existing logic of the methods remains unchanged.

Changes

File Change Summary
ocp_resources/datavolume.py - Added import for warn from warnings module.
- Issued deprecation warning in wait_for_dv_success for dv_garbage_collection_enabled.
- Updated documentation for dv_garbage_collection_enabled to indicate it is deprecated and will be removed in v4.19.
- Added comment in delete method about DataVolume deletion after success if garbage collection is enabled.

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  • ocp_resources/datavolume.py (3 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • ocp_resources/datavolume.py
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@myakove
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myakove commented Dec 23, 2024

@Ahmad-Hafe Why do you remove this?

@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from a4bcb62 to cf9a969 Compare December 23, 2024 20:16
@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from cf9a969 to b1d21a6 Compare December 23, 2024 20:23
@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from b1d21a6 to 20b7a53 Compare December 23, 2024 20:23
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Ahmad-Hafe commented Dec 23, 2024

@myakove Hi Meni, I added description in the pr details section for the purpose of removing this code

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Actionable comments posted: 0

🧹 Nitpick comments (1)
ocp_resources/datavolume.py (1)

Line range hint 13-19: Consider documenting the removal of garbage collection support

The implementation looks good after removing the garbage collection code. Consider adding a class-level comment mentioning that garbage collection support was removed in version 4.14 to help future maintainers understand this design decision.

 class DataVolume(NamespacedResource):
     """
     DataVolume object.
+
+    Note: Garbage collection support was removed in version 4.14.
     """
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📒 Files selected for processing (1)
  • ocp_resources/datavolume.py (1 hunks)
🔇 Additional comments (2)
ocp_resources/datavolume.py (2)

Line range hint 270-290: Documentation looks good!

The documentation for wait_for_dv_success is well-structured, includes clear parameter descriptions, and provides a helpful example of using the stop_status_func.


Line range hint 1-400: Verify complete removal of garbage collection code

The garbage collection parameters have been removed as intended. Let's verify there are no remaining references to garbage collection in the codebase.

✅ Verification successful

DataVolume garbage collection parameters have been successfully removed

The search results confirm that all garbage collection related parameters have been removed from the DataVolume class. The only remaining garbage collection references in the codebase are:

  • Schema definitions and documentation
  • Other resource types like DataImportCron and CDIConfig that have their own garbage collection mechanisms
  • General Kubernetes garbage collection documentation and metadata
🏁 Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Check for any remaining references to garbage collection in the codebase

# Search for garbage collection related terms
echo "Searching for garbage collection references..."
rg -i "garbage.?collect|delete.?after.?completion|dv.?garbage.?collection.?enabled" \
   --type python \
   --no-heading

# Search for related annotations in YAML files and tests
echo "Searching for related annotations in YAML and test files..."
rg -i "delete.?after.?completion" \
   --type yaml --type python \
   --glob "**/*test*.{py,yaml}" \
   --no-heading

Length of output: 510


Script:

#!/bin/bash
# Let's try a simpler approach without file type filters

# Search for garbage collection related terms
echo "Searching for garbage collection references..."
rg -i "garbage.?collect|delete.?after.?completion|dv.?garbage.?collection.?enabled"

# Search for related annotations in test files
echo "Searching in test files..."
fd -g "*test*.py" -x rg -i "delete.?after.?completion" {}

Length of output: 29150

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myakove commented Dec 24, 2024

@Ahmad-Hafe DataVolume is garbage collection no longer supported in the latest OCP-released version?

@Ahmad-Hafe
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@myakove
according to:
kubevirt/containerized-data-importer#3552
kubevirt/hyperconverged-cluster-operator#3197

DataVolume garbage collection is removed, so all functionality in wrapper is no longer relevant

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myakove commented Dec 24, 2024

@myakove according to: kubevirt/containerized-data-importer#3552 kubevirt/hyperconverged-cluster-operator#3197

DataVolume garbage collection is removed, so all functionality in wrapper is no longer relevant

only removed in v1.62
You can't remove it from here yet.

@arnongilboa
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/lgtm
although I have no idea if the rest of your code includes GC refs

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please generate DataVolume using class-generator

ocp_resources/datavolume.py Outdated Show resolved Hide resolved
Comment on lines 13 to 16
gc_deprecation_warning = (
"garbage collector is removed in version v1.62 and going to be deprecated",
DeprecationWarning,
)
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only used once, no need to save

@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from 4068b81 to 777ea8e Compare January 16, 2025 18:48
@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from 777ea8e to 5397cde Compare January 16, 2025 18:48
@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from 5397cde to d170729 Compare January 16, 2025 18:50
@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from d170729 to bda5305 Compare January 16, 2025 18:55
@Ahmad-Hafe Ahmad-Hafe force-pushed the remove_garbage_collector_dead_code branch from bda5305 to 3483838 Compare January 16, 2025 19:00
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