Zookeeper
Kitex 提供的服务注册与发现 zookeeper 拓展。
安装
go get github.com/kitex-contrib/registry-zookeeper
服务注册
创建 Registry
提供了两个创建 Registry 的函数
NewZookeeperRegistry
NewZookeeperRegistry
使用 zookeeper 创建一个服务注册中心,需要将服务通过一个字符串切片与会话超时时间共同传入 Connect
。
函数签名:
func NewZookeeperRegistry(servers []string, sessionTimeout time.Duration) (registry.Registry, error)
示例代码:
import (
...
zkregistry "github.com/kitex-contrib/registry-zookeeper/registry"
"github.com/cloudwego/kitex/server"
...
)
func main() {
...
r, err := zkregistry.NewZookeeperRegistry([]string{"127.0.0.1:2181"}, 40*time.Second)
if err != nil{
panic(err)
}
svr := echo.NewServer(new(EchoImpl), server.WithRegistry(r))
if err := svr.Run(); err != nil {
log.Println("server stopped with error:", err)
} else {
log.Println("server stopped")
}
...
}
NewZookeeperRegistryWithAuth
NewZookeeperRegistryWithAuth
使用 zookeeper 创建一个服务注册中心,需要将服务通过一个字符串切片与会话超时时间共同传入 Connect
。除此之外还需要传入用户与密码来调用 AddAuth
,用户与密码不能为空。
函数签名:
func NewZookeeperRegistryWithAuth(servers []string, sessionTimeout time.Duration, user, password string) (registry.Registry, error)
示例代码:
import (
...
zkregistry "github.com/kitex-contrib/registry-zookeeper/registry"
"github.com/cloudwego/kitex/server"
...
)
func main() {
...
// creates a zk based registry with given username and password.
r, err := zkregistry.NewZookeeperRegistryWithAuth([]string{"127.0.0.1:2181"}, 40*time.Second, "username", "password")
if err != nil{
panic(err)
}
svr := echo.NewServer(new(EchoImpl), server.WithRegistry(r))
if err := svr.Run(); err != nil {
log.Println("server stopped with error:", err)
} else {
log.Println("server stopped")
}
...
}
服务发现
创建 Resolver
NewZookeeperResolver
NewZookeeperResolver
使用 zookeeper 创建一个服务发现中心,需要将服务通过一个字符串切片与会话超时时间共同传入 Connect
。
函数签名:
func NewZookeeperResolver(servers []string, sessionTimeout time.Duration) (discovery.Resolver, error)
示例代码:
import (
...
"github.com/kitex-contrib/registry-zookeeper/resolver"
"github.com/cloudwego/kitex/client"
...
)
func main() {
...
r, err := resolver.NewZookeeperResolver([]string{"127.0.0.1:2181"}, 40*time.Second)
if err != nil {
panic(err)
}
client, err := echo.NewClient("echo", client.WithResolver(r))
if err != nil {
log.Fatal(err)
}
...
}
NewZookeeperResolverWithAuth
NewZookeeperResolverWithAuth
使用 zookeeper 创建一个服务发现中心,需要将服务通过一个字符串切片与会话超时时间共同传入 Connect
。除此之外还需要传入用户与密码来调用 AddAuth
,用户与密码不能为空。
函数签名:
func NewZookeeperResolverWithAuth(servers []string, sessionTimeout time.Duration, user, password string) (discovery.Resolver, error)
示例代码:
import (
...
"github.com/kitex-contrib/registry-zookeeper/resolver"
"github.com/cloudwego/kitex/client"
...
)
func main() {
...
// creates a zk based resolver with given username and password.
r, err := resolver.NewZookeeperResolverWithAuth([]string{"127.0.0.1:2181"}, 40*time.Second, "username", "password")
if err != nil {
panic(err)
}
client, err := echo.NewClient("echo", client.WithResolver(r))
if err != nil {
log.Fatal(err)
}
...
}
配置
可自定义 zookeeper 客户端以及服务端的配置,参考 go-zookeeper/zk 配置。
完整示例
完整示例见 discovery_test.go。
最后修改
December 9, 2024
: Update prerequisite.md (#1178) (b5e2299)