mirror of
https://github.com/arangodb/kube-arangodb.git
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112 lines
3.5 KiB
Go
112 lines
3.5 KiB
Go
//
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// DISCLAIMER
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//
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// Copyright 2020 ArangoDB GmbH, Cologne, Germany
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Copyright holder is ArangoDB GmbH, Cologne, Germany
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//
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// Author Ewout Prangsma
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//
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package storage
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import (
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"context"
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"github.com/arangodb/kube-arangodb/pkg/util/errors"
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corev1 "k8s.io/api/core/v1"
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v1 "k8s.io/api/storage/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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api "github.com/arangodb/kube-arangodb/pkg/apis/storage/v1alpha"
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"github.com/arangodb/kube-arangodb/pkg/util/k8sutil"
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)
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var (
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storageClassProvisioner = api.SchemeGroupVersion.Group + "/localstorage"
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)
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// ensureStorageClass creates a storage class for the given local storage.
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// If such a class already exists, the create is ignored.
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func (l *LocalStorage) ensureStorageClass(apiObject *api.ArangoLocalStorage) error {
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log := l.deps.Log
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spec := apiObject.Spec.StorageClass
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bindingMode := v1.VolumeBindingWaitForFirstConsumer
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reclaimPolicy := corev1.PersistentVolumeReclaimRetain
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sc := &v1.StorageClass{
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ObjectMeta: metav1.ObjectMeta{
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Name: spec.Name,
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},
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ReclaimPolicy: &reclaimPolicy,
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VolumeBindingMode: &bindingMode,
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Provisioner: storageClassProvisioner,
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}
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// Note: We do not attach the StorageClass to the apiObject (OwnerRef) because many
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// ArangoLocalStorage resource may use the same StorageClass.
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cli := l.deps.KubeCli.StorageV1()
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if _, err := cli.StorageClasses().Create(context.Background(), sc, metav1.CreateOptions{}); k8sutil.IsAlreadyExists(err) {
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log.Debug().
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Str("storageclass", sc.GetName()).
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Msg("StorageClass already exists")
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} else if err != nil {
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log.Debug().Err(err).
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Str("storageclass", sc.GetName()).
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Msg("Failed to create StorageClass")
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return errors.WithStack(err)
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} else {
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log.Debug().
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Str("storageclass", sc.GetName()).
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Msg("StorageClass created")
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}
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if apiObject.Spec.StorageClass.IsDefault {
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// UnMark current default (if any)
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list, err := cli.StorageClasses().List(context.Background(), metav1.ListOptions{})
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if err != nil {
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log.Debug().Err(err).Msg("Listing StorageClasses failed")
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return errors.WithStack(err)
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}
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for _, scX := range list.Items {
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if !k8sutil.StorageClassIsDefault(&scX) || scX.GetName() == sc.GetName() {
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continue
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}
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// Mark storage class as non-default
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if err := k8sutil.PatchStorageClassIsDefault(cli, scX.GetName(), false); err != nil {
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log.Debug().
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Err(err).
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Str("storageclass", scX.GetName()).
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Msg("Failed to mark StorageClass as not-default")
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return errors.WithStack(err)
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}
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log.Debug().
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Str("storageclass", scX.GetName()).
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Msg("Marked StorageClass as not-default")
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}
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// Mark StorageClass default
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if err := k8sutil.PatchStorageClassIsDefault(cli, sc.GetName(), true); err != nil {
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log.Debug().
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Err(err).
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Str("storageclass", sc.GetName()).
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Msg("Failed to mark StorageClass as default")
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return errors.WithStack(err)
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}
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log.Debug().
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Str("storageclass", sc.GetName()).
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Msg("Marked StorageClass as default")
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}
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return nil
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}
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