This update provides:
1) workaround around the build failures. In
summary, it forces the download of some packages during the build
process.
2) update the set of packages that should go inside the vendor
directory
3) Update the dockerfile to use go 1.10
Change-Id: I2bfd090ce0f25b0c10aa214755ae2da7e5384d60
diff --git a/vendor/github.com/coreos/etcd/etcdserver/backend.go b/vendor/github.com/coreos/etcd/etcdserver/backend.go
new file mode 100644
index 0000000..647773d
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/etcdserver/backend.go
@@ -0,0 +1,81 @@
+// Copyright 2017 The etcd 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 etcdserver
+
+import (
+ "fmt"
+ "os"
+ "time"
+
+ "github.com/coreos/etcd/lease"
+ "github.com/coreos/etcd/mvcc"
+ "github.com/coreos/etcd/mvcc/backend"
+ "github.com/coreos/etcd/raft/raftpb"
+ "github.com/coreos/etcd/snap"
+)
+
+func newBackend(cfg ServerConfig) backend.Backend {
+ bcfg := backend.DefaultBackendConfig()
+ bcfg.Path = cfg.backendPath()
+ if cfg.QuotaBackendBytes > 0 && cfg.QuotaBackendBytes != DefaultQuotaBytes {
+ // permit 10% excess over quota for disarm
+ bcfg.MmapSize = uint64(cfg.QuotaBackendBytes + cfg.QuotaBackendBytes/10)
+ }
+ return backend.New(bcfg)
+}
+
+// openSnapshotBackend renames a snapshot db to the current etcd db and opens it.
+func openSnapshotBackend(cfg ServerConfig, ss *snap.Snapshotter, snapshot raftpb.Snapshot) (backend.Backend, error) {
+ snapPath, err := ss.DBFilePath(snapshot.Metadata.Index)
+ if err != nil {
+ return nil, fmt.Errorf("database snapshot file path error: %v", err)
+ }
+ if err := os.Rename(snapPath, cfg.backendPath()); err != nil {
+ return nil, fmt.Errorf("rename snapshot file error: %v", err)
+ }
+ return openBackend(cfg), nil
+}
+
+// openBackend returns a backend using the current etcd db.
+func openBackend(cfg ServerConfig) backend.Backend {
+ fn := cfg.backendPath()
+ beOpened := make(chan backend.Backend)
+ go func() {
+ beOpened <- newBackend(cfg)
+ }()
+ select {
+ case be := <-beOpened:
+ return be
+ case <-time.After(10 * time.Second):
+ plog.Warningf("another etcd process is using %q and holds the file lock, or loading backend file is taking >10 seconds", fn)
+ plog.Warningf("waiting for it to exit before starting...")
+ }
+ return <-beOpened
+}
+
+// recoverBackendSnapshot recovers the DB from a snapshot in case etcd crashes
+// before updating the backend db after persisting raft snapshot to disk,
+// violating the invariant snapshot.Metadata.Index < db.consistentIndex. In this
+// case, replace the db with the snapshot db sent by the leader.
+func recoverSnapshotBackend(cfg ServerConfig, oldbe backend.Backend, snapshot raftpb.Snapshot) (backend.Backend, error) {
+ var cIndex consistentIndex
+ kv := mvcc.New(oldbe, &lease.FakeLessor{}, &cIndex)
+ defer kv.Close()
+ if snapshot.Metadata.Index <= kv.ConsistentIndex() {
+ return oldbe, nil
+ }
+ oldbe.Close()
+ return openSnapshotBackend(cfg, snap.New(cfg.SnapDir()), snapshot)
+}