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Service registry, corresponding to service discovery corresponds to and supports etcd, consul and nacos.
import "gitee.com/jianguosun_admin/common_pkg/servicerd/registry"
func registryService(scheme string, host string, port int) (registry.Registry, *registry.ServiceInstance) {
var (
instanceEndpoint = fmt.Sprintf("%s://%s:%d", scheme, host, port)
cfg = config.Get()
iRegistry registry.Registry
instance *registry.ServiceInstance
err error
id = cfg.App.Name + "_" + scheme + "_" + host
logField logger.Field
)
switch cfg.App.RegistryDiscoveryType {
// registering service with consul
case "consul":
iRegistry, instance, err = consul.NewRegistry(
cfg.Consul.Addr,
id,
cfg.App.Name,
[]string{instanceEndpoint},
)
if err != nil {
panic(err)
}
logField = logger.Any("consulAddress", cfg.Consul.Addr)
// registering service with etcd
case "etcd":
iRegistry, instance, err = etcd.NewRegistry(
cfg.Etcd.Addrs,
id,
cfg.App.Name,
[]string{instanceEndpoint},
)
if err != nil {
panic(err)
}
logField = logger.Any("etcdAddress", cfg.Etcd.Addrs)
// registering service with nacos
case "nacos":
iRegistry, instance, err = nacos.NewRegistry(
cfg.NacosRd.IPAddr,
cfg.NacosRd.Port,
cfg.NacosRd.NamespaceID,
id,
cfg.App.Name,
[]string{instanceEndpoint},
)
if err != nil {
panic(err)
}
logField = logger.String("nacosAddress", fmt.Sprintf("%v:%d", cfg.NacosRd.IPAddr, cfg.NacosRd.Port))
}
if instance != nil {
msg := fmt.Sprintf("register service address to %s", cfg.App.RegistryDiscoveryType)
logger.Info(msg, logField, logger.String("id", id), logger.String("name", cfg.App.Name), logger.String("endpoint", instanceEndpoint))
return iRegistry, instance
}
return nil, nil
}
// ------------------------------------------------------------------------------------------
iRegistry, serviceInstance := registryService("http", "127.0.0.1", 8080)
// register service
ctx, _ := context.WithTimeout(context.Background(), 3*time.Second)
if err := iRegistry.Register(ctx, serviceInstance); err != nil {
panic(err)
}
// deregister service
ctx, _ = context.WithTimeout(context.Background(), 3*time.Second)
if err := iRegistry.Deregister(ctx, serviceInstance); err != nil {
return err
}
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