Blaine Gardner
21e290e003
Implement the first step of `design/ceph/resource-dependencies.md` to add dependency checking when deleting a CephCluster. Signed-off-by: Blaine Gardner <blaine.gardner@redhat.com>
80 lines
2.4 KiB
Go
80 lines
2.4 KiB
Go
/*
|
|
Copyright 2021 The Rook Authors. All rights reserved.
|
|
|
|
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 cluster
|
|
|
|
import (
|
|
"context"
|
|
"strings"
|
|
|
|
"github.com/pkg/errors"
|
|
cephv1 "github.com/rook/rook/pkg/apis/ceph.rook.io/v1"
|
|
"github.com/rook/rook/pkg/clusterd"
|
|
"github.com/rook/rook/pkg/util"
|
|
"github.com/rook/rook/pkg/util/dependents"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
)
|
|
|
|
var (
|
|
// must use plural kinds
|
|
cephClusterDependentPluralKinds []string = []string{
|
|
"CephBlockPools",
|
|
"CephRBDMirrors",
|
|
"CephFilesystems",
|
|
"CephFilesystemMirrors",
|
|
"CephObjectStores",
|
|
"CephObjectStoreUsers",
|
|
"CephObjectZones",
|
|
"CephObjectZoneGroups",
|
|
"CephObjectRealms",
|
|
"CephNFSes",
|
|
"CephClients",
|
|
}
|
|
)
|
|
|
|
// CephClusterDependents returns a DependentList of dependents of a CephCluster in the namespace.
|
|
func CephClusterDependents(c *clusterd.Context, namespace string) (*dependents.DependentList, error) {
|
|
ctx := context.TODO()
|
|
|
|
dependents := dependents.NewDependentList()
|
|
errs := []error{}
|
|
|
|
for _, pluralKind := range cephClusterDependentPluralKinds {
|
|
resource := pluralKindToResource(pluralKind)
|
|
gvr := cephv1.SchemeGroupVersion.WithResource(resource)
|
|
list, err := c.DynamicClientset.Resource(gvr).Namespace(namespace).List(ctx, metav1.ListOptions{})
|
|
if err != nil {
|
|
errs = append(errs, errors.Wrapf(err, "failed to list %s", pluralKind))
|
|
continue
|
|
}
|
|
if len(list.Items) > 0 {
|
|
for _, obj := range list.Items {
|
|
dependents.Add(pluralKind, obj.GetName())
|
|
}
|
|
}
|
|
}
|
|
// returns a nil error if there are no errors in the list
|
|
outErr := util.AggregateErrors(errs, "failed to list some dependents for CephCluster in namespace %q", namespace)
|
|
|
|
return dependents, outErr
|
|
}
|
|
|
|
func pluralKindToResource(pluralKind string) string {
|
|
// The dynamic client wants resources which are lower-case versions of the plural Kinds for
|
|
// Kubernetes CRDs in almost all cases.
|
|
return strings.ToLower(pluralKind)
|
|
}
|