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leasable.go
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leasable.go
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// Copyright 2022 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.
package leasable
import (
"fmt"
"github.com/GoogleCloudPlatform/k8s-config-connector/pkg/apis/core/v1alpha1"
"github.com/GoogleCloudPlatform/k8s-config-connector/pkg/dcl/extension"
tfresource "github.com/GoogleCloudPlatform/k8s-config-connector/pkg/tf/resource"
tfschema "github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
"github.com/nasa9084/go-openapi"
)
func ResourceConfigSupportsLeasing(rc *v1alpha1.ResourceConfig, tfResourceMap map[string]*tfschema.Resource) (ok bool, err error) {
// Disable leasing for DataflowJob since the leasing mechanism needs to
// modify the resource's labels regularly, which, for DataflowJob, would
// trigger a job update on each modification.
if rc.Kind == "DataflowJob" {
return false, nil
}
labelsField := rc.MetadataMapping.Labels
if labelsField == "" {
return false, nil
}
tfResource, ok := tfResourceMap[rc.Name]
if !ok {
return false, fmt.Errorf("unknown resource %v", rc.Name)
}
labelsFieldSchema, err := tfresource.GetTFSchemaForField(tfResource, labelsField)
if err != nil {
return false, fmt.Errorf("error getting schema for field '%v' of resource '%v': %w", labelsField, rc.Name, err)
}
labelsFieldIsMutable := !labelsFieldSchema.ForceNew
return labelsFieldIsMutable, nil
}
func DCLSchemaSupportsLeasing(schema *openapi.Schema) (bool, error) {
labelsField, s, found, err := extension.GetLabelsFieldSchema(schema)
if err != nil {
return false, fmt.Errorf("error getting schema for field %v of resource '%v': %w", labelsField, schema.Title, err)
}
if !found {
return false, nil
}
isImmutable, err := extension.IsImmutableField(s)
if err != nil {
return false, err
}
return !isImmutable, nil
}