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/embed/config.go b/vendor/github.com/coreos/etcd/embed/config.go
new file mode 100644
index 0000000..835e051
--- /dev/null
+++ b/vendor/github.com/coreos/etcd/embed/config.go
@@ -0,0 +1,699 @@
+// 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 embed
+
+import (
+ "crypto/tls"
+ "fmt"
+ "io/ioutil"
+ "net"
+ "net/http"
+ "net/url"
+ "os"
+ "path/filepath"
+ "strings"
+ "time"
+
+ "github.com/coreos/etcd/compactor"
+ "github.com/coreos/etcd/etcdserver"
+ "github.com/coreos/etcd/pkg/cors"
+ "github.com/coreos/etcd/pkg/netutil"
+ "github.com/coreos/etcd/pkg/srv"
+ "github.com/coreos/etcd/pkg/tlsutil"
+ "github.com/coreos/etcd/pkg/transport"
+ "github.com/coreos/etcd/pkg/types"
+
+ "github.com/coreos/pkg/capnslog"
+ "github.com/ghodss/yaml"
+ "google.golang.org/grpc"
+ "google.golang.org/grpc/grpclog"
+)
+
+const (
+ ClusterStateFlagNew = "new"
+ ClusterStateFlagExisting = "existing"
+
+ DefaultName = "default"
+ DefaultMaxSnapshots = 5
+ DefaultMaxWALs = 5
+ DefaultMaxTxnOps = uint(128)
+ DefaultMaxRequestBytes = 1.5 * 1024 * 1024
+ DefaultGRPCKeepAliveMinTime = 5 * time.Second
+ DefaultGRPCKeepAliveInterval = 2 * time.Hour
+ DefaultGRPCKeepAliveTimeout = 20 * time.Second
+
+ DefaultListenPeerURLs = "http://localhost:2380"
+ DefaultListenClientURLs = "http://localhost:2379"
+
+ DefaultLogOutput = "default"
+
+ // DefaultStrictReconfigCheck is the default value for "--strict-reconfig-check" flag.
+ // It's enabled by default.
+ DefaultStrictReconfigCheck = true
+ // DefaultEnableV2 is the default value for "--enable-v2" flag.
+ // v2 is enabled by default.
+ // TODO: disable v2 when deprecated.
+ DefaultEnableV2 = true
+
+ // maxElectionMs specifies the maximum value of election timeout.
+ // More details are listed in ../Documentation/tuning.md#time-parameters.
+ maxElectionMs = 50000
+)
+
+var (
+ ErrConflictBootstrapFlags = fmt.Errorf("multiple discovery or bootstrap flags are set. " +
+ "Choose one of \"initial-cluster\", \"discovery\" or \"discovery-srv\"")
+ ErrUnsetAdvertiseClientURLsFlag = fmt.Errorf("--advertise-client-urls is required when --listen-client-urls is set explicitly")
+
+ DefaultInitialAdvertisePeerURLs = "http://localhost:2380"
+ DefaultAdvertiseClientURLs = "http://localhost:2379"
+
+ defaultHostname string
+ defaultHostStatus error
+)
+
+func init() {
+ defaultHostname, defaultHostStatus = netutil.GetDefaultHost()
+}
+
+// Config holds the arguments for configuring an etcd server.
+type Config struct {
+ // member
+
+ CorsInfo *cors.CORSInfo
+ LPUrls, LCUrls []url.URL
+ Dir string `json:"data-dir"`
+ WalDir string `json:"wal-dir"`
+ MaxSnapFiles uint `json:"max-snapshots"`
+ MaxWalFiles uint `json:"max-wals"`
+ Name string `json:"name"`
+ SnapCount uint64 `json:"snapshot-count"`
+
+ // AutoCompactionMode is either 'periodic' or 'revision'.
+ AutoCompactionMode string `json:"auto-compaction-mode"`
+ // AutoCompactionRetention is either duration string with time unit
+ // (e.g. '5m' for 5-minute), or revision unit (e.g. '5000').
+ // If no time unit is provided and compaction mode is 'periodic',
+ // the unit defaults to hour. For example, '5' translates into 5-hour.
+ AutoCompactionRetention string `json:"auto-compaction-retention"`
+
+ // TickMs is the number of milliseconds between heartbeat ticks.
+ // TODO: decouple tickMs and heartbeat tick (current heartbeat tick = 1).
+ // make ticks a cluster wide configuration.
+ TickMs uint `json:"heartbeat-interval"`
+ ElectionMs uint `json:"election-timeout"`
+
+ // InitialElectionTickAdvance is true, then local member fast-forwards
+ // election ticks to speed up "initial" leader election trigger. This
+ // benefits the case of larger election ticks. For instance, cross
+ // datacenter deployment may require longer election timeout of 10-second.
+ // If true, local node does not need wait up to 10-second. Instead,
+ // forwards its election ticks to 8-second, and have only 2-second left
+ // before leader election.
+ //
+ // Major assumptions are that:
+ // - cluster has no active leader thus advancing ticks enables faster
+ // leader election, or
+ // - cluster already has an established leader, and rejoining follower
+ // is likely to receive heartbeats from the leader after tick advance
+ // and before election timeout.
+ //
+ // However, when network from leader to rejoining follower is congested,
+ // and the follower does not receive leader heartbeat within left election
+ // ticks, disruptive election has to happen thus affecting cluster
+ // availabilities.
+ //
+ // Disabling this would slow down initial bootstrap process for cross
+ // datacenter deployments. Make your own tradeoffs by configuring
+ // --initial-election-tick-advance at the cost of slow initial bootstrap.
+ //
+ // If single-node, it advances ticks regardless.
+ //
+ // See https://github.com/coreos/etcd/issues/9333 for more detail.
+ InitialElectionTickAdvance bool `json:"initial-election-tick-advance"`
+
+ QuotaBackendBytes int64 `json:"quota-backend-bytes"`
+ MaxTxnOps uint `json:"max-txn-ops"`
+ MaxRequestBytes uint `json:"max-request-bytes"`
+
+ // gRPC server options
+
+ // GRPCKeepAliveMinTime is the minimum interval that a client should
+ // wait before pinging server. When client pings "too fast", server
+ // sends goaway and closes the connection (errors: too_many_pings,
+ // http2.ErrCodeEnhanceYourCalm). When too slow, nothing happens.
+ // Server expects client pings only when there is any active streams
+ // (PermitWithoutStream is set false).
+ GRPCKeepAliveMinTime time.Duration `json:"grpc-keepalive-min-time"`
+ // GRPCKeepAliveInterval is the frequency of server-to-client ping
+ // to check if a connection is alive. Close a non-responsive connection
+ // after an additional duration of Timeout. 0 to disable.
+ GRPCKeepAliveInterval time.Duration `json:"grpc-keepalive-interval"`
+ // GRPCKeepAliveTimeout is the additional duration of wait
+ // before closing a non-responsive connection. 0 to disable.
+ GRPCKeepAliveTimeout time.Duration `json:"grpc-keepalive-timeout"`
+
+ // clustering
+
+ APUrls, ACUrls []url.URL
+ ClusterState string `json:"initial-cluster-state"`
+ DNSCluster string `json:"discovery-srv"`
+ Dproxy string `json:"discovery-proxy"`
+ Durl string `json:"discovery"`
+ InitialCluster string `json:"initial-cluster"`
+ InitialClusterToken string `json:"initial-cluster-token"`
+ StrictReconfigCheck bool `json:"strict-reconfig-check"`
+ EnableV2 bool `json:"enable-v2"`
+
+ // security
+
+ ClientTLSInfo transport.TLSInfo
+ ClientAutoTLS bool
+ PeerTLSInfo transport.TLSInfo
+ PeerAutoTLS bool
+
+ // CipherSuites is a list of supported TLS cipher suites between
+ // client/server and peers. If empty, Go auto-populates the list.
+ // Note that cipher suites are prioritized in the given order.
+ CipherSuites []string `json:"cipher-suites"`
+
+ // debug
+
+ Debug bool `json:"debug"`
+ LogPkgLevels string `json:"log-package-levels"`
+ LogOutput string `json:"log-output"`
+ EnablePprof bool `json:"enable-pprof"`
+ Metrics string `json:"metrics"`
+ ListenMetricsUrls []url.URL
+ ListenMetricsUrlsJSON string `json:"listen-metrics-urls"`
+
+ // ForceNewCluster starts a new cluster even if previously started; unsafe.
+ ForceNewCluster bool `json:"force-new-cluster"`
+
+ // UserHandlers is for registering users handlers and only used for
+ // embedding etcd into other applications.
+ // The map key is the route path for the handler, and
+ // you must ensure it can't be conflicted with etcd's.
+ UserHandlers map[string]http.Handler `json:"-"`
+ // ServiceRegister is for registering users' gRPC services. A simple usage example:
+ // cfg := embed.NewConfig()
+ // cfg.ServerRegister = func(s *grpc.Server) {
+ // pb.RegisterFooServer(s, &fooServer{})
+ // pb.RegisterBarServer(s, &barServer{})
+ // }
+ // embed.StartEtcd(cfg)
+ ServiceRegister func(*grpc.Server) `json:"-"`
+
+ // auth
+
+ AuthToken string `json:"auth-token"`
+
+ // Experimental flags
+
+ ExperimentalInitialCorruptCheck bool `json:"experimental-initial-corrupt-check"`
+ ExperimentalCorruptCheckTime time.Duration `json:"experimental-corrupt-check-time"`
+ ExperimentalEnableV2V3 string `json:"experimental-enable-v2v3"`
+}
+
+// configYAML holds the config suitable for yaml parsing
+type configYAML struct {
+ Config
+ configJSON
+}
+
+// configJSON has file options that are translated into Config options
+type configJSON struct {
+ LPUrlsJSON string `json:"listen-peer-urls"`
+ LCUrlsJSON string `json:"listen-client-urls"`
+ CorsJSON string `json:"cors"`
+ APUrlsJSON string `json:"initial-advertise-peer-urls"`
+ ACUrlsJSON string `json:"advertise-client-urls"`
+ ClientSecurityJSON securityConfig `json:"client-transport-security"`
+ PeerSecurityJSON securityConfig `json:"peer-transport-security"`
+}
+
+type securityConfig struct {
+ CAFile string `json:"ca-file"`
+ CertFile string `json:"cert-file"`
+ KeyFile string `json:"key-file"`
+ CertAuth bool `json:"client-cert-auth"`
+ TrustedCAFile string `json:"trusted-ca-file"`
+ AutoTLS bool `json:"auto-tls"`
+}
+
+// NewConfig creates a new Config populated with default values.
+func NewConfig() *Config {
+ lpurl, _ := url.Parse(DefaultListenPeerURLs)
+ apurl, _ := url.Parse(DefaultInitialAdvertisePeerURLs)
+ lcurl, _ := url.Parse(DefaultListenClientURLs)
+ acurl, _ := url.Parse(DefaultAdvertiseClientURLs)
+ cfg := &Config{
+ CorsInfo: &cors.CORSInfo{},
+ MaxSnapFiles: DefaultMaxSnapshots,
+ MaxWalFiles: DefaultMaxWALs,
+ Name: DefaultName,
+ SnapCount: etcdserver.DefaultSnapCount,
+ MaxTxnOps: DefaultMaxTxnOps,
+ MaxRequestBytes: DefaultMaxRequestBytes,
+ GRPCKeepAliveMinTime: DefaultGRPCKeepAliveMinTime,
+ GRPCKeepAliveInterval: DefaultGRPCKeepAliveInterval,
+ GRPCKeepAliveTimeout: DefaultGRPCKeepAliveTimeout,
+ TickMs: 100,
+ ElectionMs: 1000,
+ InitialElectionTickAdvance: true,
+ LPUrls: []url.URL{*lpurl},
+ LCUrls: []url.URL{*lcurl},
+ APUrls: []url.URL{*apurl},
+ ACUrls: []url.URL{*acurl},
+ ClusterState: ClusterStateFlagNew,
+ InitialClusterToken: "etcd-cluster",
+ StrictReconfigCheck: DefaultStrictReconfigCheck,
+ LogOutput: DefaultLogOutput,
+ Metrics: "basic",
+ EnableV2: DefaultEnableV2,
+ AuthToken: "simple",
+ }
+ cfg.InitialCluster = cfg.InitialClusterFromName(cfg.Name)
+ return cfg
+}
+
+func logTLSHandshakeFailure(conn *tls.Conn, err error) {
+ state := conn.ConnectionState()
+ remoteAddr := conn.RemoteAddr().String()
+ serverName := state.ServerName
+ if len(state.PeerCertificates) > 0 {
+ cert := state.PeerCertificates[0]
+ ips, dns := cert.IPAddresses, cert.DNSNames
+ plog.Infof("rejected connection from %q (error %q, ServerName %q, IPAddresses %q, DNSNames %q)", remoteAddr, err.Error(), serverName, ips, dns)
+ } else {
+ plog.Infof("rejected connection from %q (error %q, ServerName %q)", remoteAddr, err.Error(), serverName)
+ }
+}
+
+// SetupLogging initializes etcd logging.
+// Must be called after flag parsing.
+func (cfg *Config) SetupLogging() {
+ cfg.ClientTLSInfo.HandshakeFailure = logTLSHandshakeFailure
+ cfg.PeerTLSInfo.HandshakeFailure = logTLSHandshakeFailure
+
+ capnslog.SetGlobalLogLevel(capnslog.INFO)
+ if cfg.Debug {
+ capnslog.SetGlobalLogLevel(capnslog.DEBUG)
+ grpc.EnableTracing = true
+ // enable info, warning, error
+ grpclog.SetLoggerV2(grpclog.NewLoggerV2(os.Stderr, os.Stderr, os.Stderr))
+ } else {
+ // only discard info
+ grpclog.SetLoggerV2(grpclog.NewLoggerV2(ioutil.Discard, os.Stderr, os.Stderr))
+ }
+ if cfg.LogPkgLevels != "" {
+ repoLog := capnslog.MustRepoLogger("github.com/coreos/etcd")
+ settings, err := repoLog.ParseLogLevelConfig(cfg.LogPkgLevels)
+ if err != nil {
+ plog.Warningf("couldn't parse log level string: %s, continuing with default levels", err.Error())
+ return
+ }
+ repoLog.SetLogLevel(settings)
+ }
+
+ // capnslog initially SetFormatter(NewDefaultFormatter(os.Stderr))
+ // where NewDefaultFormatter returns NewJournaldFormatter when syscall.Getppid() == 1
+ // specify 'stdout' or 'stderr' to skip journald logging even when running under systemd
+ switch cfg.LogOutput {
+ case "stdout":
+ capnslog.SetFormatter(capnslog.NewPrettyFormatter(os.Stdout, cfg.Debug))
+ case "stderr":
+ capnslog.SetFormatter(capnslog.NewPrettyFormatter(os.Stderr, cfg.Debug))
+ case DefaultLogOutput:
+ default:
+ plog.Panicf(`unknown log-output %q (only supports %q, "stdout", "stderr")`, cfg.LogOutput, DefaultLogOutput)
+ }
+}
+
+func ConfigFromFile(path string) (*Config, error) {
+ cfg := &configYAML{Config: *NewConfig()}
+ if err := cfg.configFromFile(path); err != nil {
+ return nil, err
+ }
+ return &cfg.Config, nil
+}
+
+func (cfg *configYAML) configFromFile(path string) error {
+ b, err := ioutil.ReadFile(path)
+ if err != nil {
+ return err
+ }
+
+ defaultInitialCluster := cfg.InitialCluster
+
+ err = yaml.Unmarshal(b, cfg)
+ if err != nil {
+ return err
+ }
+
+ if cfg.LPUrlsJSON != "" {
+ u, err := types.NewURLs(strings.Split(cfg.LPUrlsJSON, ","))
+ if err != nil {
+ plog.Fatalf("unexpected error setting up listen-peer-urls: %v", err)
+ }
+ cfg.LPUrls = []url.URL(u)
+ }
+
+ if cfg.LCUrlsJSON != "" {
+ u, err := types.NewURLs(strings.Split(cfg.LCUrlsJSON, ","))
+ if err != nil {
+ plog.Fatalf("unexpected error setting up listen-client-urls: %v", err)
+ }
+ cfg.LCUrls = []url.URL(u)
+ }
+
+ if cfg.CorsJSON != "" {
+ if err := cfg.CorsInfo.Set(cfg.CorsJSON); err != nil {
+ plog.Panicf("unexpected error setting up cors: %v", err)
+ }
+ }
+
+ if cfg.APUrlsJSON != "" {
+ u, err := types.NewURLs(strings.Split(cfg.APUrlsJSON, ","))
+ if err != nil {
+ plog.Fatalf("unexpected error setting up initial-advertise-peer-urls: %v", err)
+ }
+ cfg.APUrls = []url.URL(u)
+ }
+
+ if cfg.ACUrlsJSON != "" {
+ u, err := types.NewURLs(strings.Split(cfg.ACUrlsJSON, ","))
+ if err != nil {
+ plog.Fatalf("unexpected error setting up advertise-peer-urls: %v", err)
+ }
+ cfg.ACUrls = []url.URL(u)
+ }
+
+ if cfg.ListenMetricsUrlsJSON != "" {
+ u, err := types.NewURLs(strings.Split(cfg.ListenMetricsUrlsJSON, ","))
+ if err != nil {
+ plog.Fatalf("unexpected error setting up listen-metrics-urls: %v", err)
+ }
+ cfg.ListenMetricsUrls = []url.URL(u)
+ }
+
+ // If a discovery flag is set, clear default initial cluster set by InitialClusterFromName
+ if (cfg.Durl != "" || cfg.DNSCluster != "") && cfg.InitialCluster == defaultInitialCluster {
+ cfg.InitialCluster = ""
+ }
+ if cfg.ClusterState == "" {
+ cfg.ClusterState = ClusterStateFlagNew
+ }
+
+ copySecurityDetails := func(tls *transport.TLSInfo, ysc *securityConfig) {
+ tls.CAFile = ysc.CAFile
+ tls.CertFile = ysc.CertFile
+ tls.KeyFile = ysc.KeyFile
+ tls.ClientCertAuth = ysc.CertAuth
+ tls.TrustedCAFile = ysc.TrustedCAFile
+ }
+ copySecurityDetails(&cfg.ClientTLSInfo, &cfg.ClientSecurityJSON)
+ copySecurityDetails(&cfg.PeerTLSInfo, &cfg.PeerSecurityJSON)
+ cfg.ClientAutoTLS = cfg.ClientSecurityJSON.AutoTLS
+ cfg.PeerAutoTLS = cfg.PeerSecurityJSON.AutoTLS
+
+ return cfg.Validate()
+}
+
+func updateCipherSuites(tls *transport.TLSInfo, ss []string) error {
+ if len(tls.CipherSuites) > 0 && len(ss) > 0 {
+ return fmt.Errorf("TLSInfo.CipherSuites is already specified (given %v)", ss)
+ }
+ if len(ss) > 0 {
+ cs := make([]uint16, len(ss))
+ for i, s := range ss {
+ var ok bool
+ cs[i], ok = tlsutil.GetCipherSuite(s)
+ if !ok {
+ return fmt.Errorf("unexpected TLS cipher suite %q", s)
+ }
+ }
+ tls.CipherSuites = cs
+ }
+ return nil
+}
+
+// Validate ensures that '*embed.Config' fields are properly configured.
+func (cfg *Config) Validate() error {
+ if err := checkBindURLs(cfg.LPUrls); err != nil {
+ return err
+ }
+ if err := checkBindURLs(cfg.LCUrls); err != nil {
+ return err
+ }
+ if err := checkBindURLs(cfg.ListenMetricsUrls); err != nil {
+ return err
+ }
+ if err := checkHostURLs(cfg.APUrls); err != nil {
+ // TODO: return err in v3.4
+ addrs := make([]string, len(cfg.APUrls))
+ for i := range cfg.APUrls {
+ addrs[i] = cfg.APUrls[i].String()
+ }
+ plog.Warningf("advertise-peer-urls %q is deprecated (%v)", strings.Join(addrs, ","), err)
+ }
+ if err := checkHostURLs(cfg.ACUrls); err != nil {
+ // TODO: return err in v3.4
+ addrs := make([]string, len(cfg.ACUrls))
+ for i := range cfg.ACUrls {
+ addrs[i] = cfg.ACUrls[i].String()
+ }
+ plog.Warningf("advertise-client-urls %q is deprecated (%v)", strings.Join(addrs, ","), err)
+ }
+
+ // Check if conflicting flags are passed.
+ nSet := 0
+ for _, v := range []bool{cfg.Durl != "", cfg.InitialCluster != "", cfg.DNSCluster != ""} {
+ if v {
+ nSet++
+ }
+ }
+
+ if cfg.ClusterState != ClusterStateFlagNew && cfg.ClusterState != ClusterStateFlagExisting {
+ return fmt.Errorf("unexpected clusterState %q", cfg.ClusterState)
+ }
+
+ if nSet > 1 {
+ return ErrConflictBootstrapFlags
+ }
+
+ if cfg.TickMs <= 0 {
+ return fmt.Errorf("--heartbeat-interval must be >0 (set to %dms)", cfg.TickMs)
+ }
+ if cfg.ElectionMs <= 0 {
+ return fmt.Errorf("--election-timeout must be >0 (set to %dms)", cfg.ElectionMs)
+ }
+ if 5*cfg.TickMs > cfg.ElectionMs {
+ return fmt.Errorf("--election-timeout[%vms] should be at least as 5 times as --heartbeat-interval[%vms]", cfg.ElectionMs, cfg.TickMs)
+ }
+ if cfg.ElectionMs > maxElectionMs {
+ return fmt.Errorf("--election-timeout[%vms] is too long, and should be set less than %vms", cfg.ElectionMs, maxElectionMs)
+ }
+
+ // check this last since proxying in etcdmain may make this OK
+ if cfg.LCUrls != nil && cfg.ACUrls == nil {
+ return ErrUnsetAdvertiseClientURLsFlag
+ }
+
+ switch cfg.AutoCompactionMode {
+ case "":
+ case compactor.ModeRevision, compactor.ModePeriodic:
+ default:
+ return fmt.Errorf("unknown auto-compaction-mode %q", cfg.AutoCompactionMode)
+ }
+
+ return nil
+}
+
+// PeerURLsMapAndToken sets up an initial peer URLsMap and cluster token for bootstrap or discovery.
+func (cfg *Config) PeerURLsMapAndToken(which string) (urlsmap types.URLsMap, token string, err error) {
+ token = cfg.InitialClusterToken
+ switch {
+ case cfg.Durl != "":
+ urlsmap = types.URLsMap{}
+ // If using discovery, generate a temporary cluster based on
+ // self's advertised peer URLs
+ urlsmap[cfg.Name] = cfg.APUrls
+ token = cfg.Durl
+ case cfg.DNSCluster != "":
+ clusterStrs, cerr := srv.GetCluster("etcd-server", cfg.Name, cfg.DNSCluster, cfg.APUrls)
+ if cerr != nil {
+ plog.Errorf("couldn't resolve during SRV discovery (%v)", cerr)
+ return nil, "", cerr
+ }
+ for _, s := range clusterStrs {
+ plog.Noticef("got bootstrap from DNS for etcd-server at %s", s)
+ }
+ clusterStr := strings.Join(clusterStrs, ",")
+ if strings.Contains(clusterStr, "https://") && cfg.PeerTLSInfo.CAFile == "" {
+ cfg.PeerTLSInfo.ServerName = cfg.DNSCluster
+ }
+ urlsmap, err = types.NewURLsMap(clusterStr)
+ // only etcd member must belong to the discovered cluster.
+ // proxy does not need to belong to the discovered cluster.
+ if which == "etcd" {
+ if _, ok := urlsmap[cfg.Name]; !ok {
+ return nil, "", fmt.Errorf("cannot find local etcd member %q in SRV records", cfg.Name)
+ }
+ }
+ default:
+ // We're statically configured, and cluster has appropriately been set.
+ urlsmap, err = types.NewURLsMap(cfg.InitialCluster)
+ }
+ return urlsmap, token, err
+}
+
+func (cfg Config) InitialClusterFromName(name string) (ret string) {
+ if len(cfg.APUrls) == 0 {
+ return ""
+ }
+ n := name
+ if name == "" {
+ n = DefaultName
+ }
+ for i := range cfg.APUrls {
+ ret = ret + "," + n + "=" + cfg.APUrls[i].String()
+ }
+ return ret[1:]
+}
+
+func (cfg Config) IsNewCluster() bool { return cfg.ClusterState == ClusterStateFlagNew }
+func (cfg Config) ElectionTicks() int { return int(cfg.ElectionMs / cfg.TickMs) }
+
+func (cfg Config) defaultPeerHost() bool {
+ return len(cfg.APUrls) == 1 && cfg.APUrls[0].String() == DefaultInitialAdvertisePeerURLs
+}
+
+func (cfg Config) defaultClientHost() bool {
+ return len(cfg.ACUrls) == 1 && cfg.ACUrls[0].String() == DefaultAdvertiseClientURLs
+}
+
+func (cfg *Config) ClientSelfCert() (err error) {
+ if !cfg.ClientAutoTLS {
+ return nil
+ }
+ if !cfg.ClientTLSInfo.Empty() {
+ plog.Warningf("ignoring client auto TLS since certs given")
+ return nil
+ }
+ chosts := make([]string, len(cfg.LCUrls))
+ for i, u := range cfg.LCUrls {
+ chosts[i] = u.Host
+ }
+ cfg.ClientTLSInfo, err = transport.SelfCert(filepath.Join(cfg.Dir, "fixtures", "client"), chosts)
+ if err != nil {
+ return err
+ }
+ return updateCipherSuites(&cfg.ClientTLSInfo, cfg.CipherSuites)
+}
+
+func (cfg *Config) PeerSelfCert() (err error) {
+ if !cfg.PeerAutoTLS {
+ return nil
+ }
+ if !cfg.PeerTLSInfo.Empty() {
+ plog.Warningf("ignoring peer auto TLS since certs given")
+ return nil
+ }
+ phosts := make([]string, len(cfg.LPUrls))
+ for i, u := range cfg.LPUrls {
+ phosts[i] = u.Host
+ }
+ cfg.PeerTLSInfo, err = transport.SelfCert(filepath.Join(cfg.Dir, "fixtures", "peer"), phosts)
+ if err != nil {
+ return err
+ }
+ return updateCipherSuites(&cfg.PeerTLSInfo, cfg.CipherSuites)
+}
+
+// UpdateDefaultClusterFromName updates cluster advertise URLs with, if available, default host,
+// if advertise URLs are default values(localhost:2379,2380) AND if listen URL is 0.0.0.0.
+// e.g. advertise peer URL localhost:2380 or listen peer URL 0.0.0.0:2380
+// then the advertise peer host would be updated with machine's default host,
+// while keeping the listen URL's port.
+// User can work around this by explicitly setting URL with 127.0.0.1.
+// It returns the default hostname, if used, and the error, if any, from getting the machine's default host.
+// TODO: check whether fields are set instead of whether fields have default value
+func (cfg *Config) UpdateDefaultClusterFromName(defaultInitialCluster string) (string, error) {
+ if defaultHostname == "" || defaultHostStatus != nil {
+ // update 'initial-cluster' when only the name is specified (e.g. 'etcd --name=abc')
+ if cfg.Name != DefaultName && cfg.InitialCluster == defaultInitialCluster {
+ cfg.InitialCluster = cfg.InitialClusterFromName(cfg.Name)
+ }
+ return "", defaultHostStatus
+ }
+
+ used := false
+ pip, pport := cfg.LPUrls[0].Hostname(), cfg.LPUrls[0].Port()
+ if cfg.defaultPeerHost() && pip == "0.0.0.0" {
+ cfg.APUrls[0] = url.URL{Scheme: cfg.APUrls[0].Scheme, Host: fmt.Sprintf("%s:%s", defaultHostname, pport)}
+ used = true
+ }
+ // update 'initial-cluster' when only the name is specified (e.g. 'etcd --name=abc')
+ if cfg.Name != DefaultName && cfg.InitialCluster == defaultInitialCluster {
+ cfg.InitialCluster = cfg.InitialClusterFromName(cfg.Name)
+ }
+
+ cip, cport := cfg.LCUrls[0].Hostname(), cfg.LCUrls[0].Port()
+ if cfg.defaultClientHost() && cip == "0.0.0.0" {
+ cfg.ACUrls[0] = url.URL{Scheme: cfg.ACUrls[0].Scheme, Host: fmt.Sprintf("%s:%s", defaultHostname, cport)}
+ used = true
+ }
+ dhost := defaultHostname
+ if !used {
+ dhost = ""
+ }
+ return dhost, defaultHostStatus
+}
+
+// checkBindURLs returns an error if any URL uses a domain name.
+func checkBindURLs(urls []url.URL) error {
+ for _, url := range urls {
+ if url.Scheme == "unix" || url.Scheme == "unixs" {
+ continue
+ }
+ host, _, err := net.SplitHostPort(url.Host)
+ if err != nil {
+ return err
+ }
+ if host == "localhost" {
+ // special case for local address
+ // TODO: support /etc/hosts ?
+ continue
+ }
+ if net.ParseIP(host) == nil {
+ return fmt.Errorf("expected IP in URL for binding (%s)", url.String())
+ }
+ }
+ return nil
+}
+
+func checkHostURLs(urls []url.URL) error {
+ for _, url := range urls {
+ host, _, err := net.SplitHostPort(url.Host)
+ if err != nil {
+ return err
+ }
+ if host == "" {
+ return fmt.Errorf("unexpected empty host (%s)", url.String())
+ }
+ }
+ return nil
+}