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/pkg/schedule/schedule.go b/vendor/github.com/coreos/etcd/pkg/schedule/schedule.go
new file mode 100644
index 0000000..234d019
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/pkg/schedule/schedule.go
@@ -0,0 +1,165 @@
+// Copyright 2016 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 schedule
+
+import (
+ "context"
+ "sync"
+)
+
+type Job func(context.Context)
+
+// Scheduler can schedule jobs.
+type Scheduler interface {
+ // Schedule asks the scheduler to schedule a job defined by the given func.
+ // Schedule to a stopped scheduler might panic.
+ Schedule(j Job)
+
+ // Pending returns number of pending jobs
+ Pending() int
+
+ // Scheduled returns the number of scheduled jobs (excluding pending jobs)
+ Scheduled() int
+
+ // Finished returns the number of finished jobs
+ Finished() int
+
+ // WaitFinish waits until at least n job are finished and all pending jobs are finished.
+ WaitFinish(n int)
+
+ // Stop stops the scheduler.
+ Stop()
+}
+
+type fifo struct {
+ mu sync.Mutex
+
+ resume chan struct{}
+ scheduled int
+ finished int
+ pendings []Job
+
+ ctx context.Context
+ cancel context.CancelFunc
+
+ finishCond *sync.Cond
+ donec chan struct{}
+}
+
+// NewFIFOScheduler returns a Scheduler that schedules jobs in FIFO
+// order sequentially
+func NewFIFOScheduler() Scheduler {
+ f := &fifo{
+ resume: make(chan struct{}, 1),
+ donec: make(chan struct{}, 1),
+ }
+ f.finishCond = sync.NewCond(&f.mu)
+ f.ctx, f.cancel = context.WithCancel(context.Background())
+ go f.run()
+ return f
+}
+
+// Schedule schedules a job that will be ran in FIFO order sequentially.
+func (f *fifo) Schedule(j Job) {
+ f.mu.Lock()
+ defer f.mu.Unlock()
+
+ if f.cancel == nil {
+ panic("schedule: schedule to stopped scheduler")
+ }
+
+ if len(f.pendings) == 0 {
+ select {
+ case f.resume <- struct{}{}:
+ default:
+ }
+ }
+ f.pendings = append(f.pendings, j)
+}
+
+func (f *fifo) Pending() int {
+ f.mu.Lock()
+ defer f.mu.Unlock()
+ return len(f.pendings)
+}
+
+func (f *fifo) Scheduled() int {
+ f.mu.Lock()
+ defer f.mu.Unlock()
+ return f.scheduled
+}
+
+func (f *fifo) Finished() int {
+ f.finishCond.L.Lock()
+ defer f.finishCond.L.Unlock()
+ return f.finished
+}
+
+func (f *fifo) WaitFinish(n int) {
+ f.finishCond.L.Lock()
+ for f.finished < n || len(f.pendings) != 0 {
+ f.finishCond.Wait()
+ }
+ f.finishCond.L.Unlock()
+}
+
+// Stop stops the scheduler and cancels all pending jobs.
+func (f *fifo) Stop() {
+ f.mu.Lock()
+ f.cancel()
+ f.cancel = nil
+ f.mu.Unlock()
+ <-f.donec
+}
+
+func (f *fifo) run() {
+ // TODO: recover from job panic?
+ defer func() {
+ close(f.donec)
+ close(f.resume)
+ }()
+
+ for {
+ var todo Job
+ f.mu.Lock()
+ if len(f.pendings) != 0 {
+ f.scheduled++
+ todo = f.pendings[0]
+ }
+ f.mu.Unlock()
+ if todo == nil {
+ select {
+ case <-f.resume:
+ case <-f.ctx.Done():
+ f.mu.Lock()
+ pendings := f.pendings
+ f.pendings = nil
+ f.mu.Unlock()
+ // clean up pending jobs
+ for _, todo := range pendings {
+ todo(f.ctx)
+ }
+ return
+ }
+ } else {
+ todo(f.ctx)
+ f.finishCond.L.Lock()
+ f.finished++
+ f.pendings = f.pendings[1:]
+ f.finishCond.Broadcast()
+ f.finishCond.L.Unlock()
+ }
+ }
+}