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interface.go
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interface.go
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/*
Copyright © 2023 - 2024 SUSE 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 sync
import (
"context"
"slices"
kerrors "k8s.io/apimachinery/pkg/util/errors"
"sigs.k8s.io/controller-runtime/pkg/client"
turtlesv1 "github.com/rancher/turtles/api/v1alpha1"
)
// Sync is an inteface for mirroring state of the CAPI Operator Provider object on child objects.
type Sync interface {
Template(source *turtlesv1.CAPIProvider) client.Object
Get(ctx context.Context) error
Sync(ctx context.Context) error
Apply(ctx context.Context, reterr *error)
}
// List contains a list of syncers to apply the syncing logic.
type List []Sync
// NewList creates a new list of only initialized Sync handlers.
func NewList(syncHandlers ...Sync) List {
return slices.DeleteFunc(syncHandlers, func(s Sync) bool {
return s == nil
})
}
// Sync applies synchronization logic on all syncers in the list.
func (s List) Sync(ctx context.Context) error {
errors := []error{}
for _, syncer := range s {
errors = append(errors, syncer.Get(ctx), syncer.Sync(ctx))
}
return kerrors.NewAggregate(errors)
}
// Apply updates all syncer objects in the cluster.
func (s List) Apply(ctx context.Context, reterr *error) {
errors := []error{*reterr}
for _, syncer := range s {
var err error
syncer.Apply(ctx, &err)
errors = append(errors, err)
}
*reterr = kerrors.NewAggregate(errors)
}