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/mvcc/backend/batch_tx.go b/vendor/github.com/coreos/etcd/mvcc/backend/batch_tx.go
new file mode 100644
index 0000000..aed6893
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/mvcc/backend/batch_tx.go
@@ -0,0 +1,254 @@
+// Copyright 2015 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 backend
+
+import (
+	"bytes"
+	"math"
+	"sync"
+	"sync/atomic"
+	"time"
+
+	bolt "github.com/coreos/bbolt"
+)
+
+type BatchTx interface {
+	ReadTx
+	UnsafeCreateBucket(name []byte)
+	UnsafePut(bucketName []byte, key []byte, value []byte)
+	UnsafeSeqPut(bucketName []byte, key []byte, value []byte)
+	UnsafeDelete(bucketName []byte, key []byte)
+	// Commit commits a previous tx and begins a new writable one.
+	Commit()
+	// CommitAndStop commits the previous tx and does not create a new one.
+	CommitAndStop()
+}
+
+type batchTx struct {
+	sync.Mutex
+	tx      *bolt.Tx
+	backend *backend
+
+	pending int
+}
+
+func (t *batchTx) UnsafeCreateBucket(name []byte) {
+	_, err := t.tx.CreateBucket(name)
+	if err != nil && err != bolt.ErrBucketExists {
+		plog.Fatalf("cannot create bucket %s (%v)", name, err)
+	}
+	t.pending++
+}
+
+// UnsafePut must be called holding the lock on the tx.
+func (t *batchTx) UnsafePut(bucketName []byte, key []byte, value []byte) {
+	t.unsafePut(bucketName, key, value, false)
+}
+
+// UnsafeSeqPut must be called holding the lock on the tx.
+func (t *batchTx) UnsafeSeqPut(bucketName []byte, key []byte, value []byte) {
+	t.unsafePut(bucketName, key, value, true)
+}
+
+func (t *batchTx) unsafePut(bucketName []byte, key []byte, value []byte, seq bool) {
+	bucket := t.tx.Bucket(bucketName)
+	if bucket == nil {
+		plog.Fatalf("bucket %s does not exist", bucketName)
+	}
+	if seq {
+		// it is useful to increase fill percent when the workloads are mostly append-only.
+		// this can delay the page split and reduce space usage.
+		bucket.FillPercent = 0.9
+	}
+	if err := bucket.Put(key, value); err != nil {
+		plog.Fatalf("cannot put key into bucket (%v)", err)
+	}
+	t.pending++
+}
+
+// UnsafeRange must be called holding the lock on the tx.
+func (t *batchTx) UnsafeRange(bucketName, key, endKey []byte, limit int64) ([][]byte, [][]byte) {
+	bucket := t.tx.Bucket(bucketName)
+	if bucket == nil {
+		plog.Fatalf("bucket %s does not exist", bucketName)
+	}
+	return unsafeRange(bucket.Cursor(), key, endKey, limit)
+}
+
+func unsafeRange(c *bolt.Cursor, key, endKey []byte, limit int64) (keys [][]byte, vs [][]byte) {
+	if limit <= 0 {
+		limit = math.MaxInt64
+	}
+	var isMatch func(b []byte) bool
+	if len(endKey) > 0 {
+		isMatch = func(b []byte) bool { return bytes.Compare(b, endKey) < 0 }
+	} else {
+		isMatch = func(b []byte) bool { return bytes.Equal(b, key) }
+		limit = 1
+	}
+	for ck, cv := c.Seek(key); ck != nil && isMatch(ck); ck, cv = c.Next() {
+		vs = append(vs, cv)
+		keys = append(keys, ck)
+		if limit == int64(len(keys)) {
+			break
+		}
+	}
+	return keys, vs
+}
+
+// UnsafeDelete must be called holding the lock on the tx.
+func (t *batchTx) UnsafeDelete(bucketName []byte, key []byte) {
+	bucket := t.tx.Bucket(bucketName)
+	if bucket == nil {
+		plog.Fatalf("bucket %s does not exist", bucketName)
+	}
+	err := bucket.Delete(key)
+	if err != nil {
+		plog.Fatalf("cannot delete key from bucket (%v)", err)
+	}
+	t.pending++
+}
+
+// UnsafeForEach must be called holding the lock on the tx.
+func (t *batchTx) UnsafeForEach(bucketName []byte, visitor func(k, v []byte) error) error {
+	return unsafeForEach(t.tx, bucketName, visitor)
+}
+
+func unsafeForEach(tx *bolt.Tx, bucket []byte, visitor func(k, v []byte) error) error {
+	if b := tx.Bucket(bucket); b != nil {
+		return b.ForEach(visitor)
+	}
+	return nil
+}
+
+// Commit commits a previous tx and begins a new writable one.
+func (t *batchTx) Commit() {
+	t.Lock()
+	t.commit(false)
+	t.Unlock()
+}
+
+// CommitAndStop commits the previous tx and does not create a new one.
+func (t *batchTx) CommitAndStop() {
+	t.Lock()
+	t.commit(true)
+	t.Unlock()
+}
+
+func (t *batchTx) Unlock() {
+	if t.pending >= t.backend.batchLimit {
+		t.commit(false)
+	}
+	t.Mutex.Unlock()
+}
+
+func (t *batchTx) commit(stop bool) {
+	// commit the last tx
+	if t.tx != nil {
+		if t.pending == 0 && !stop {
+			return
+		}
+
+		start := time.Now()
+
+		// gofail: var beforeCommit struct{}
+		err := t.tx.Commit()
+		// gofail: var afterCommit struct{}
+
+		commitDurations.Observe(time.Since(start).Seconds())
+		atomic.AddInt64(&t.backend.commits, 1)
+
+		t.pending = 0
+		if err != nil {
+			plog.Fatalf("cannot commit tx (%s)", err)
+		}
+	}
+	if !stop {
+		t.tx = t.backend.begin(true)
+	}
+}
+
+type batchTxBuffered struct {
+	batchTx
+	buf txWriteBuffer
+}
+
+func newBatchTxBuffered(backend *backend) *batchTxBuffered {
+	tx := &batchTxBuffered{
+		batchTx: batchTx{backend: backend},
+		buf: txWriteBuffer{
+			txBuffer: txBuffer{make(map[string]*bucketBuffer)},
+			seq:      true,
+		},
+	}
+	tx.Commit()
+	return tx
+}
+
+func (t *batchTxBuffered) Unlock() {
+	if t.pending != 0 {
+		t.backend.readTx.mu.Lock()
+		t.buf.writeback(&t.backend.readTx.buf)
+		t.backend.readTx.mu.Unlock()
+		if t.pending >= t.backend.batchLimit {
+			t.commit(false)
+		}
+	}
+	t.batchTx.Unlock()
+}
+
+func (t *batchTxBuffered) Commit() {
+	t.Lock()
+	t.commit(false)
+	t.Unlock()
+}
+
+func (t *batchTxBuffered) CommitAndStop() {
+	t.Lock()
+	t.commit(true)
+	t.Unlock()
+}
+
+func (t *batchTxBuffered) commit(stop bool) {
+	// all read txs must be closed to acquire boltdb commit rwlock
+	t.backend.readTx.mu.Lock()
+	t.unsafeCommit(stop)
+	t.backend.readTx.mu.Unlock()
+}
+
+func (t *batchTxBuffered) unsafeCommit(stop bool) {
+	if t.backend.readTx.tx != nil {
+		if err := t.backend.readTx.tx.Rollback(); err != nil {
+			plog.Fatalf("cannot rollback tx (%s)", err)
+		}
+		t.backend.readTx.reset()
+	}
+
+	t.batchTx.commit(stop)
+
+	if !stop {
+		t.backend.readTx.tx = t.backend.begin(false)
+	}
+}
+
+func (t *batchTxBuffered) UnsafePut(bucketName []byte, key []byte, value []byte) {
+	t.batchTx.UnsafePut(bucketName, key, value)
+	t.buf.put(bucketName, key, value)
+}
+
+func (t *batchTxBuffered) UnsafeSeqPut(bucketName []byte, key []byte, value []byte) {
+	t.batchTx.UnsafeSeqPut(bucketName, key, value)
+	t.buf.putSeq(bucketName, key, value)
+}