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chore: Refactor registry to be more reusable
We need to move things around to avoid import cycles as we add IAM support.
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Original file line number | Diff line number | Diff line change |
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// Copyright 2024 Google LLC | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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package registry | ||
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import ( | ||
"context" | ||
"fmt" | ||
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"github.com/GoogleCloudPlatform/k8s-config-connector/pkg/controller" | ||
"github.com/GoogleCloudPlatform/k8s-config-connector/pkg/controller/direct/directbase" | ||
"k8s.io/apimachinery/pkg/runtime/schema" | ||
) | ||
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var singleton = registry{} | ||
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type registry struct { | ||
registrations map[schema.GroupKind]*registration | ||
} | ||
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type registration struct { | ||
gvk schema.GroupVersionKind | ||
factory ModelFactoryFunc | ||
model directbase.Model | ||
} | ||
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type ModelFactoryFunc func(ctx context.Context, config *controller.Config) (directbase.Model, error) | ||
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func GetModel(gk schema.GroupKind) (directbase.Model, error) { | ||
registration := singleton.registrations[gk] | ||
if registration == nil { | ||
return nil, fmt.Errorf("no model registered for %s", gk) | ||
} | ||
return registration.model, nil | ||
} | ||
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func PreferredGVK(gk schema.GroupKind) (schema.GroupVersionKind, bool) { | ||
registration := singleton.registrations[gk] | ||
if registration == nil { | ||
return schema.GroupVersionKind{}, false | ||
} | ||
return registration.gvk, true | ||
} | ||
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func Init(ctx context.Context, config *controller.Config) error { | ||
for _, registration := range singleton.registrations { | ||
model, err := registration.factory(ctx, config) | ||
if err != nil { | ||
return err | ||
} | ||
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registration.model = model | ||
} | ||
return nil | ||
} | ||
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func RegisterModel(gvk schema.GroupVersionKind, modelFn ModelFactoryFunc) { | ||
if singleton.registrations == nil { | ||
singleton.registrations = make(map[schema.GroupKind]*registration) | ||
} | ||
singleton.registrations[gvk.GroupKind()] = ®istration{ | ||
gvk: gvk, | ||
factory: modelFn, | ||
} | ||
} | ||
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func IsDirectByGK(gk schema.GroupKind) bool { | ||
registration := singleton.registrations[gk] | ||
return registration != nil | ||
} | ||
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// IsIAMDirect returns true if this resource uses the direct-reconciliation model for IAM. | ||
func IsIAMDirect(groupKind schema.GroupKind) bool { | ||
registration := singleton.registrations[groupKind] | ||
if registration == nil { | ||
return false | ||
} | ||
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// TODO: Move to registration somehow? | ||
switch groupKind { | ||
case schema.GroupKind{Group: "privateca.cnrm.cloud.google.com", Kind: "PrivateCACAPool"}: | ||
return true | ||
} | ||
return false | ||
} | ||
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// SupportsIAM returns true if this resource supports IAM (not all GCP resources do). | ||
// An error will be returned if IsDirect(groupKind) is not true. | ||
func SupportsIAM(groupKind schema.GroupKind) (bool, error) { | ||
// TODO: Move to registration somehow? | ||
switch groupKind { | ||
case schema.GroupKind{Group: "logging.cnrm.cloud.google.com", Kind: "LoggingLogMetric"}: | ||
return false, nil | ||
} | ||
return false, fmt.Errorf("groupKind %v is not recognized as a direct kind", groupKind) | ||
} |
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