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support unwatchables in vai (#458)

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* Create and use a synthetic watcher for non-watchable resources.

* Write unit tests for the synthetic watcher.

* Make the refresh interval for synthetic watchers configurable.

The default is to call `client.List(...)` every 5 seconds for each unwatchable GVK.

There are currently only 3 such GVKs right now so this will be informative
enough but not really noticeable.

* Pass the context into the synthetic watch func.

* Restore changes lost in rebasing.

---------

Co-authored-by: Tom Lebreux <tom.lebreux@suse.com>
This commit is contained in:
Eric Promislow
2025-02-20 12:45:58 -08:00
committed by GitHub
parent 6559fa9ad7
commit c906c36bc3
6 changed files with 364 additions and 19 deletions
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12
pkg/sqlcache/informer/informer_test.go
View File

@@ -79,7 +79,7 @@ func TestNewInformer(t *testing.T) {
}
})
informer, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true)
informer, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true, true)
assert.Nil(t, err)
assert.NotNil(t, informer.ByOptionsLister)
assert.NotNil(t, informer.SharedIndexInformer)
@@ -103,7 +103,7 @@ func TestNewInformer(t *testing.T) {
}
})
_, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true)
_, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true, true)
assert.NotNil(t, err)
}})
tests = append(tests, testCase{description: "NewInformer() with errors returned from NewIndexer(), should return an error", test: func(t *testing.T) {
@@ -138,7 +138,7 @@ func TestNewInformer(t *testing.T) {
}
})
_, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true)
_, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true, true)
assert.NotNil(t, err)
}})
tests = append(tests, testCase{description: "NewInformer() with errors returned from NewListOptionIndexer(), should return an error", test: func(t *testing.T) {
@@ -190,7 +190,7 @@ func TestNewInformer(t *testing.T) {
}
})
_, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true)
_, err := NewInformer(context.Background(), dynamicClient, fields, nil, gvk, dbClient, false, true, true)
assert.NotNil(t, err)
}})
tests = append(tests, testCase{description: "NewInformer() with transform func", test: func(t *testing.T) {
@@ -253,7 +253,7 @@ func TestNewInformer(t *testing.T) {
transformFunc := func(input interface{}) (interface{}, error) {
return "someoutput", nil
}
informer, err := NewInformer(context.Background(), dynamicClient, fields, transformFunc, gvk, dbClient, false, true)
informer, err := NewInformer(context.Background(), dynamicClient, fields, transformFunc, gvk, dbClient, false, true, true)
assert.Nil(t, err)
assert.NotNil(t, informer.ByOptionsLister)
assert.NotNil(t, informer.SharedIndexInformer)
@@ -289,7 +289,7 @@ func TestNewInformer(t *testing.T) {
transformFunc := func(input interface{}) (interface{}, error) {
return "someoutput", nil
}
_, err := NewInformer(context.Background(), dynamicClient, fields, transformFunc, gvk, dbClient, false, true)
_, err := NewInformer(context.Background(), dynamicClient, fields, transformFunc, gvk, dbClient, false, true, true)
assert.Error(t, err)
newInformer = cache.NewSharedIndexInformer
}})