You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
94 lines
1.9 KiB
94 lines
1.9 KiB
## Discovery Registry
|
|
|
|
This module implements a `registry.Registrar` and `registry.Discovery` interface in kratos based `bilibili/discovery`.
|
|
|
|
[](https://pkg.go.dev/github.com/go-kratos/kratos/contrib/registry/discovery/v2)
|
|
|
|
### Quick Start
|
|
|
|
**_Register a service_**
|
|
|
|
```go
|
|
import (
|
|
"github.com/go-kratos/kratos/contrib/registry/discovery/v2"
|
|
)
|
|
|
|
func main() {
|
|
// initialize a registry
|
|
r := discovery.New(&discovery.Config{
|
|
Nodes: []string{"0.0.0.0:7171"},
|
|
Env: "dev",
|
|
Region: "sh1",
|
|
Zone: "zone1",
|
|
Host: "hostname",
|
|
})
|
|
|
|
// construct srv instance
|
|
// ...
|
|
|
|
app := kratos.New(
|
|
kratos.Name("helloworld"),
|
|
kratos.Server(
|
|
httpSrv,
|
|
grpcSrv,
|
|
),
|
|
kratos.Metadata(map[string]string{"color": "gray"}),
|
|
// use Registrar
|
|
kratos.Registrar(r),
|
|
)
|
|
|
|
if err := app.Run(); err != nil {
|
|
log.NewHelper(logger).Fatal(err)
|
|
}
|
|
}
|
|
```
|
|
|
|
**_Discover a service_**
|
|
|
|
```go
|
|
import (
|
|
"github.com/go-kratos/kratos/contrib/registry/discovery/v2"
|
|
"github.com/go-kratos/kratos/v2/transport/grpc"
|
|
)
|
|
|
|
func main() {
|
|
// initialize a discovery
|
|
r := discovery.New(&discovery.Config{
|
|
Nodes: []string{"0.0.0.0:7171"},
|
|
Env: "dev",
|
|
Region: "sh1",
|
|
Zone: "zone1",
|
|
Host: "localhost",
|
|
}, nil)
|
|
|
|
conn, err := grpc.DialInsecure(
|
|
context.Background(),
|
|
grpc.WithEndpoint("discovery:///appid"),
|
|
// use discovery
|
|
grpc.WithDiscovery(r),
|
|
)
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
defer conn.Close()
|
|
|
|
// request and log
|
|
}
|
|
```
|
|
|
|
### Config explain
|
|
|
|
```go
|
|
type Config struct {
|
|
Nodes []string // discovery nodes address
|
|
Region string // region of the service, sh
|
|
Zone string // zone of region, sh001
|
|
Env string // env of service, dev, prod and etc
|
|
Host string // hostname of service
|
|
}
|
|
```
|
|
|
|
### References
|
|
|
|
- [bilibili/discovery](https://github.com/bilibili/discovery)
|
|
|
|
|