// getPeerURLsMapAndToken sets up an initial peer URLsMap and cluster token for bootstrap or discovery.
func getPeerURLsMapAndToken(cfg *config, which string) (urlsmap types.URLsMap, token string, err error) {
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 != "":
var clusterStr string
clusterStr, token, err = discovery.SRVGetCluster(cfg.name, cfg.dnsCluster, cfg.initialClusterToken, cfg.apurls)
if err != nil {
return nil, "", err
}
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)
token = cfg.initialClusterToken
}
return urlsmap, token, err
}
// 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) {
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 != "":
var clusterStr string
clusterStr, token, err = discovery.SRVGetCluster(cfg.Name, cfg.DNSCluster, cfg.InitialClusterToken, cfg.APUrls)
if err != nil {
return nil, "", err
}
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)
token = cfg.InitialClusterToken
}
return urlsmap, token, err
}
// setupCluster sets up an initial cluster definition for bootstrap or discovery.
func setupCluster(cfg *config) (*etcdserver.Cluster, error) {
var cls *etcdserver.Cluster
var err error
switch {
case cfg.durl != "":
// If using discovery, generate a temporary cluster based on
// self's advertised peer URLs
clusterStr := genClusterString(cfg.name, cfg.apurls)
cls, err = etcdserver.NewClusterFromString(cfg.durl, clusterStr)
case cfg.dnsCluster != "":
clusterStr, clusterToken, err := discovery.SRVGetCluster(cfg.name, cfg.dnsCluster, cfg.initialClusterToken, cfg.apurls)
if err != nil {
return nil, err
}
cls, err = etcdserver.NewClusterFromString(clusterToken, clusterStr)
default:
// We're statically configured, and cluster has appropriately been set.
cls, err = etcdserver.NewClusterFromString(cfg.initialClusterToken, cfg.initialCluster)
}
return cls, err
}
// getPeerURLsMapAndToken sets up an initial peer URLsMap and cluster token for bootstrap or discovery.
func getPeerURLsMapAndToken(cfg *config) (urlsmap types.URLsMap, token string, err error) {
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 != "":
var clusterStr string
clusterStr, token, err = discovery.SRVGetCluster(cfg.name, cfg.dnsCluster, cfg.initialClusterToken, cfg.apurls)
if err != nil {
return nil, "", err
}
urlsmap, err = types.NewURLsMap(clusterStr)
default:
// We're statically configured, and cluster has appropriately been set.
urlsmap, err = types.NewURLsMap(cfg.initialCluster)
token = cfg.initialClusterToken
}
return urlsmap, token, err
}