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s3_backup.go
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/
s3_backup.go
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// Copyright 2017 The etcd-operator Authors
//
// 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 controller
import (
"crypto/tls"
"fmt"
api "github.com/coreos/etcd-operator/pkg/apis/etcd/v1beta2"
"github.com/coreos/etcd-operator/pkg/backup"
"github.com/coreos/etcd-operator/pkg/backup/writer"
"github.com/coreos/etcd-operator/pkg/util/awsutil/s3factory"
"github.com/coreos/etcd-operator/pkg/util/etcdutil"
"github.com/coreos/etcd-operator/pkg/util/k8sutil"
"k8s.io/client-go/kubernetes"
)
// TODO: replace this with generic backend interface for other options (PV, Azure)
// handleS3 saves etcd cluster's backup to specificed S3 path.
func handleS3(kubecli kubernetes.Interface, s *api.S3BackupSource, endpoints []string, clientTLSSecret, namespace string) (*api.BackupStatus, error) {
cli, err := s3factory.NewClientFromSecret(kubecli, namespace, s.AWSSecret)
if err != nil {
return nil, err
}
defer cli.Close()
var tlsConfig *tls.Config
if len(clientTLSSecret) != 0 {
d, err := k8sutil.GetTLSDataFromSecret(kubecli, namespace, clientTLSSecret)
if err != nil {
return nil, fmt.Errorf("failed to get TLS data from secret (%v): %v", clientTLSSecret, err)
}
tlsConfig, err = etcdutil.NewTLSConfig(d.CertData, d.KeyData, d.CAData)
if err != nil {
return nil, fmt.Errorf("failed to constructs tls config: %v", err)
}
}
bm := backup.NewBackupManagerFromWriter(kubecli, writer.NewS3Writer(cli.S3), tlsConfig, endpoints, namespace)
rev, etcdVersion, err := bm.SaveSnap(s.Path)
if err != nil {
return nil, fmt.Errorf("failed to save snapshot (%v)", err)
}
return &api.BackupStatus{EtcdVersion: etcdVersion, EtcdRevision: rev}, nil
}