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b9a8c0b254
* Load credentials and pass to ObjectStorage plugins Update NewObjectBackupStore to take a CredentialsGetter which can be used to get the credentials for a BackupStorageLocation if it has been configured with a Credential. If the BSL has a credential, use that SecretKeySelector to fetch the secret, write the contents to a temp file and then pass that file through to the plugin via the config map using the key `credentialsFile`. This relies on the plugin being able to use this new config field. This does not yet handle VolumeSnapshotLocations or ResticRepositories. Signed-off-by: Bridget McErlean <bmcerlean@vmware.com> * Address code reviews Add godocs and comments. Improve formatting and test names. Signed-off-by: Bridget McErlean <bmcerlean@vmware.com> * Address code reviews Signed-off-by: Bridget McErlean <bmcerlean@vmware.com>
89 lines
2.6 KiB
Go
89 lines
2.6 KiB
Go
/*
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Copyright the Velero contributors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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package credentials
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/pkg/errors"
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corev1api "k8s.io/api/core/v1"
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kbclient "sigs.k8s.io/controller-runtime/pkg/client"
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"github.com/vmware-tanzu/velero/pkg/util/filesystem"
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"github.com/vmware-tanzu/velero/pkg/util/kube"
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)
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// FileStore defines operations for interacting with credentials
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// that are stored on a file system.
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type FileStore interface {
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// Path returns a path on disk where the secret key defined by
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// the given selector is serialized.
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Path(selector *corev1api.SecretKeySelector) (string, error)
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}
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type namespacedFileStore struct {
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client kbclient.Client
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namespace string
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fsRoot string
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fs filesystem.Interface
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}
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// NewNamespacedFileStore returns a FileStore which can interact with credentials
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// for the given namespace and will store them under the given fsRoot.
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func NewNamespacedFileStore(client kbclient.Client, namespace string, fsRoot string, fs filesystem.Interface) (FileStore, error) {
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fsNamespaceRoot := filepath.Join(fsRoot, namespace)
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if err := fs.MkdirAll(fsNamespaceRoot, 0755); err != nil {
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return nil, err
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}
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return &namespacedFileStore{
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client: client,
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namespace: namespace,
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fsRoot: fsNamespaceRoot,
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fs: fs,
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}, nil
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}
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// Path returns a path on disk where the secret key defined by
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// the given selector is serialized.
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func (n *namespacedFileStore) Path(selector *corev1api.SecretKeySelector) (string, error) {
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creds, err := kube.GetSecretKey(n.client, n.namespace, selector)
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if err != nil {
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return "", errors.Wrap(err, "unable to get key for secret")
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}
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keyFilePath := filepath.Join(n.fsRoot, fmt.Sprintf("%s-%s", selector.Name, selector.Key))
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file, err := n.fs.OpenFile(keyFilePath, os.O_RDWR|os.O_CREATE, 0644)
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if err != nil {
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return "", errors.Wrap(err, "unable to open credentials file for writing")
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}
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if _, err := file.Write(creds); err != nil {
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return "", errors.Wrap(err, "unable to write credentials to store")
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}
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if err := file.Close(); err != nil {
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return "", errors.Wrap(err, "unable to close credentials file")
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}
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return keyFilePath, nil
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}
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