/
defaulter.go
79 lines (67 loc) · 2.74 KB
/
defaulter.go
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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.
package k8s
import (
"context"
"fmt"
apierrors "k8s.io/apimachinery/pkg/api/errors"
"k8s.io/apimachinery/pkg/types"
"sigs.k8s.io/controller-runtime/pkg/client"
operatorv1beta1 "github.com/GoogleCloudPlatform/k8s-config-connector/operator/pkg/apis/core/v1beta1"
operatork8s "github.com/GoogleCloudPlatform/k8s-config-connector/operator/pkg/k8s"
)
type Defaulter interface {
ApplyDefaults(ctx context.Context, obj client.Object) (changed bool, err error)
}
// StateIntoSpecDefaulter contains the required 'defaultValue' field and the
// optional 'userOverride' field.
type StateIntoSpecDefaulter struct {
client client.Client
}
func NewStateIntoSpecDefaulter(client client.Client) Defaulter {
return &StateIntoSpecDefaulter{
client: client,
}
}
func (v *StateIntoSpecDefaulter) ApplyDefaults(ctx context.Context, resource client.Object) (changed bool, err error) {
annotationValue := StateIntoSpecDefaultValueV1Beta1
cccNamespacedName := types.NamespacedName{
Namespace: resource.GetNamespace(),
Name: operatork8s.ConfigConnectorContextAllowedName,
}
ccc := &operatorv1beta1.ConfigConnectorContext{}
if err := v.client.Get(ctx, cccNamespacedName, ccc); err != nil {
if apierrors.IsNotFound(err) {
ccc = nil
} else {
return false, fmt.Errorf("error getting ConfigConnectorContext object %v/%v: %w", cccNamespacedName.Namespace, cccNamespacedName.Name, err)
}
}
if ccc != nil && ccc.Spec.StateIntoSpec != nil {
switch *ccc.Spec.StateIntoSpec {
case operatorv1beta1.StateIntoSpecMerge:
annotationValue = StateMergeIntoSpec
case operatorv1beta1.StateIntoSpecAbsent:
annotationValue = StateAbsentInSpec
default:
return false, fmt.Errorf("invalid value %q for spec.stateIntoSpec, should be Absent or Merge (Absent recommended)", *ccc.Spec.StateIntoSpec)
}
}
// Validate or set the default value (cluster-level or namespace-level) for
// the 'state-into-spec' annotation.
if err := ValidateOrDefaultStateIntoSpecAnnotation(resource, annotationValue); err != nil {
return false, fmt.Errorf("error validating or defaulting the '%v' annotation for resource '%v': %w", StateIntoSpecAnnotation, GetNamespacedName(resource), err)
}
return true, nil
}