openstack-operator/utils/k8sutils/kubernetes.go

51 lines
1.4 KiB
Go

// Copyright 2020 VEXXHOST, Inc.
//
// 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 k8sutils
import (
"context"
"fmt"
"github.com/google/go-cmp/cmp"
"k8s.io/apimachinery/pkg/runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
)
// CreateOrUpdate wraps the function provided by controller-runtime to include
// some additional logging and common functionality across all resources.
func CreateOrUpdate(ctx context.Context, c client.Client, obj runtime.Object, f controllerutil.MutateFn) (controllerutil.OperationResult, error) {
return controllerutil.CreateOrUpdate(ctx, c, obj, func() error {
original := obj.DeepCopyObject()
err := f()
if err != nil {
return err
}
generateObjectDiff(original, obj)
return nil
})
}
func generateObjectDiff(original runtime.Object, modified runtime.Object) {
diff := cmp.Diff(original, modified)
if len(diff) != 0 {
fmt.Println(diff)
}
}