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dnsentry.go
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dnsentry.go
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// Copyright (c) 2020 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// 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 dns
import (
"context"
"time"
dnsv1alpha1 "github.com/gardener/external-dns-management/pkg/apis/dns/v1alpha1"
"github.com/sirupsen/logrus"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/utils/pointer"
"sigs.k8s.io/controller-runtime/pkg/client"
v1beta1constants "github.com/gardener/gardener/pkg/apis/core/v1beta1/constants"
"github.com/gardener/gardener/pkg/controllerutils"
"github.com/gardener/gardener/pkg/extensions"
"github.com/gardener/gardener/pkg/operation/botanist/component"
kutil "github.com/gardener/gardener/pkg/utils/kubernetes"
)
// EntryValues contains the values used to create a DNSEntry
type EntryValues struct {
Name string
DNSName string
Targets []string
OwnerID string
TTL int64
}
// NewEntry creates a new instance of DeployWaiter for a specific DNSEntry.
func NewEntry(
logger logrus.FieldLogger,
client client.Client,
namespace string,
values *EntryValues,
) component.DeployWaiter {
return &entry{
logger: logger,
client: client,
namespace: namespace,
values: values,
dnsEntry: &dnsv1alpha1.DNSEntry{
ObjectMeta: metav1.ObjectMeta{
Name: values.Name,
Namespace: namespace,
},
},
}
}
type entry struct {
logger logrus.FieldLogger
client client.Client
namespace string
values *EntryValues
dnsEntry *dnsv1alpha1.DNSEntry
}
func (e *entry) Deploy(ctx context.Context) error {
_, err := controllerutils.GetAndCreateOrMergePatch(ctx, e.client, e.dnsEntry, func() error {
metav1.SetMetaDataAnnotation(&e.dnsEntry.ObjectMeta, v1beta1constants.GardenerTimestamp, TimeNow().UTC().String())
e.dnsEntry.Spec = dnsv1alpha1.DNSEntrySpec{
DNSName: e.values.DNSName,
TTL: pointer.Int64(120),
Targets: e.values.Targets,
}
if e.values.TTL > 0 {
e.dnsEntry.Spec.TTL = &e.values.TTL
}
if len(e.values.OwnerID) > 0 {
e.dnsEntry.Spec.OwnerId = &e.values.OwnerID
}
return nil
})
return err
}
func (e *entry) Destroy(ctx context.Context) error {
return client.IgnoreNotFound(e.client.Delete(ctx, e.dnsEntry))
}
func (e *entry) Wait(ctx context.Context) error {
return extensions.WaitUntilObjectReadyWithHealthFunction(
ctx,
e.client,
e.logger,
CheckDNSObject,
e.dnsEntry,
dnsv1alpha1.DNSEntryKind,
5*time.Second,
15*time.Second,
2*time.Minute,
nil,
)
}
func (e *entry) WaitCleanup(ctx context.Context) error {
return kutil.WaitUntilResourceDeleted(ctx, e.client, e.dnsEntry, 5*time.Second)
}