func main() {
flag.Parse()
client := etcd.NewClient([]string{etcdServer})
srvs := &services{
m: map[string]*service{},
}
updates := make(chan *etcd.Response)
// Perform an initial read of all services.
res, err := client.Get(servicesPrefix, false, true)
if err != nil {
log.Fatalf("Error on initial retrieval: %s", err)
}
srvs.update(res.Node)
srvs.persist()
// Start watching for updates.
go func() {
res, err := client.Watch(servicesPrefix, 0, true, updates, nil)
if err != nil {
log.Errorln(err)
}
log.Infoln(res)
}()
// Apply updates sent on the channel.
for res := range updates {
if res.Action == "delete" {
log.Debugf("delete: %s", res.Node.Key)
srvs.delete(res.Node)
} else {
log.Debugf("%s: %s = %s", res.Action, res.Node.Key, res.Node.Value)
srvs.update(res.Node)
}
srvs.persist()
}
}
func main() {
flag.Parse()
var (
client = etcd.NewClient([]string{*etcdServer})
srvs = services{}
updates = make(chan *etcd.Response)
)
// Perform an initial read of all services.
res, err := client.Get(servicesPrefix, false, true)
if err != nil {
log.Fatalf("Error on initial retrieval: %s", err)
}
srvs.handle(res.Node, srvs.update)
srvs.persist()
// Start watching for updates.
go func() {
_, err := client.Watch(servicesPrefix, 0, true, updates, nil)
if err != nil {
log.Errorln(err)
}
}()
// Apply updates sent on the channel.
for res := range updates {
log.Infoln(res.Action, res.Node.Key, res.Node.Value)
h := srvs.update
if res.Action == "delete" {
h = srvs.delete
}
srvs.handle(res.Node, h)
srvs.persist()
}
}