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/srv/srv.go b/vendor/github.com/coreos/etcd/pkg/srv/srv.go
new file mode 100644
index 0000000..600061c
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/pkg/srv/srv.go
@@ -0,0 +1,141 @@
+// 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 srv looks up DNS SRV records.
+package srv
+
+import (
+ "fmt"
+ "net"
+ "net/url"
+ "strings"
+
+ "github.com/coreos/etcd/pkg/types"
+)
+
+var (
+ // indirection for testing
+ lookupSRV = net.LookupSRV // net.DefaultResolver.LookupSRV when ctxs don't conflict
+ resolveTCPAddr = net.ResolveTCPAddr
+)
+
+// GetCluster gets the cluster information via DNS discovery.
+// Also sees each entry as a separate instance.
+func GetCluster(service, name, dns string, apurls types.URLs) ([]string, error) {
+ tempName := int(0)
+ tcp2ap := make(map[string]url.URL)
+
+ // First, resolve the apurls
+ for _, url := range apurls {
+ tcpAddr, err := resolveTCPAddr("tcp", url.Host)
+ if err != nil {
+ return nil, err
+ }
+ tcp2ap[tcpAddr.String()] = url
+ }
+
+ stringParts := []string{}
+ updateNodeMap := func(service, scheme string) error {
+ _, addrs, err := lookupSRV(service, "tcp", dns)
+ if err != nil {
+ return err
+ }
+ for _, srv := range addrs {
+ port := fmt.Sprintf("%d", srv.Port)
+ host := net.JoinHostPort(srv.Target, port)
+ tcpAddr, terr := resolveTCPAddr("tcp", host)
+ if terr != nil {
+ err = terr
+ continue
+ }
+ n := ""
+ url, ok := tcp2ap[tcpAddr.String()]
+ if ok {
+ n = name
+ }
+ if n == "" {
+ n = fmt.Sprintf("%d", tempName)
+ tempName++
+ }
+ // SRV records have a trailing dot but URL shouldn't.
+ shortHost := strings.TrimSuffix(srv.Target, ".")
+ urlHost := net.JoinHostPort(shortHost, port)
+ if ok && url.Scheme != scheme {
+ err = fmt.Errorf("bootstrap at %s from DNS for %s has scheme mismatch with expected peer %s", scheme+"://"+urlHost, service, url.String())
+ } else {
+ stringParts = append(stringParts, fmt.Sprintf("%s=%s://%s", n, scheme, urlHost))
+ }
+ }
+ if len(stringParts) == 0 {
+ return err
+ }
+ return nil
+ }
+
+ failCount := 0
+ err := updateNodeMap(service+"-ssl", "https")
+ srvErr := make([]string, 2)
+ if err != nil {
+ srvErr[0] = fmt.Sprintf("error querying DNS SRV records for _%s-ssl %s", service, err)
+ failCount++
+ }
+ err = updateNodeMap(service, "http")
+ if err != nil {
+ srvErr[1] = fmt.Sprintf("error querying DNS SRV records for _%s %s", service, err)
+ failCount++
+ }
+ if failCount == 2 {
+ return nil, fmt.Errorf("srv: too many errors querying DNS SRV records (%q, %q)", srvErr[0], srvErr[1])
+ }
+ return stringParts, nil
+}
+
+type SRVClients struct {
+ Endpoints []string
+ SRVs []*net.SRV
+}
+
+// GetClient looks up the client endpoints for a service and domain.
+func GetClient(service, domain string) (*SRVClients, error) {
+ var urls []*url.URL
+ var srvs []*net.SRV
+
+ updateURLs := func(service, scheme string) error {
+ _, addrs, err := lookupSRV(service, "tcp", domain)
+ if err != nil {
+ return err
+ }
+ for _, srv := range addrs {
+ urls = append(urls, &url.URL{
+ Scheme: scheme,
+ Host: net.JoinHostPort(srv.Target, fmt.Sprintf("%d", srv.Port)),
+ })
+ }
+ srvs = append(srvs, addrs...)
+ return nil
+ }
+
+ errHTTPS := updateURLs(service+"-ssl", "https")
+ errHTTP := updateURLs(service, "http")
+
+ if errHTTPS != nil && errHTTP != nil {
+ return nil, fmt.Errorf("dns lookup errors: %s and %s", errHTTPS, errHTTP)
+ }
+
+ endpoints := make([]string, len(urls))
+ for i := range urls {
+ endpoints[i] = urls[i].String()
+ }
+ return &SRVClients{Endpoints: endpoints, SRVs: srvs}, nil
+}