hydra微服务容器
基于golang实现。
hydra 提供简单的、统一的、易扩展的服务容器框架。通过少量的代码集成,即可实现的丰富功能,如:集群管理、配置管理、服务注册与发现、系统监控、日志归集、链路追踪、安全访问、常用组件等。
目前已应用于20+生产项目,主要功能:
-
支持API、WEB、WEBSOCKET、RPC、定时任务、消息消费 等服务器,可在单个应用中组合使用。
-
支持windows, mac, linux以服务方式安装、运行、停止、卸载等。
-
支持分布式集群部署、单机伪集群部署、单机部署。
-
提供对等、分片、主从等集群模式。
-
采用配置中心,中心化管理配置,本地零配置。支持zookeeper, redis, 本地文件,进程内管理配置。
-
配置变更后自动生效,无须手动重启服务
-
支持zookeeper, etcd, redis等作为注册中心,为远程调用提供服务管理。
-
支持将metric信息(如:QPS、处理时长、响应等)定时上报到influxdb,用于系统运行状况监控大屏显示。
-
支持Skywalking,Cat等APM工具进行分布式追踪、性能指标分析、应用和服务依赖分析。
-
支持将本地日志提交到日志归集服务器( rlog),用于日志集中查询分析。
-
支持白名单、黑名单访问控制,Basic Auth、API KEY、Cookie, JWT等安全验证。 支持远程认证服务, 提供加解密、验证签等服务。
-
支持服务器限流、降级、熔断等控制。
-
支持根据业务规则编写灰度脚本,将用户请求转发到不同集群。
-
redis,memcached,数据库,mqtt,activeMQ,rpc,uuid,分布式锁,http client,rpc client等。
package main
import (
"github.com/micro-plat/hydra"
"github.com/micro-plat/hydra/hydra/servers/http"
)
func main() {
//创建app
app := hydra.NewApp(
hydra.WithPlatName("test"), //平台名
hydra.WithSystemName("apiserver"), //系统或应用名
hydra.WithServerTypes(http.API),
)
//注册服务
app.API("/hello", func(ctx hydra.IContext) interface{} {
return "hello world"
})
//启动app
app.Start()
}
package main
import (
"github.com/micro-plat/hydra"
"github.com/micro-plat/hydra/hydra/servers/rpc"
)
func main() {
//创建app
app := hydra.NewApp(
hydra.WithServerTypes(rpc.RPC),
)
//注册服务
app.RPC("/hello", func(ctx hydra.IContext) interface{} {
return "hello world"
})
//启动app
app.Start()
}
package main
import (
"github.com/micro-plat/hydra"
"github.com/micro-plat/hydra/hydra/servers/cron"
)
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(cron.CRON),
)
//注册服务
app.CRON("/hello",hello,"@every 5s")
app.Start()
}
func hello(ctx hydra.IContext) interface{} {
return "success"
}
package main
import (
"github.com/micro-plat/hydra"
"github.com/micro-plat/hydra/hydra/servers/mqc"
"github.com/micro-plat/hydra/conf/vars/queue/lmq"
)
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(mqc.MQC),
)
//注册服务
app.MQC("/hello",hello,"queue-name")
//设置消息队列服务器(本地内存MQ,支持redis,mqtt等)
hydra.Conf.MQC(lmq.MQ)
app.Start()
}
func hello(ctx hydra.IContext) interface{} {
return "success"
}
package main
import (
"github.com/micro-plat/hydra"
"github.com/micro-plat/hydra/hydra/servers/http"
"github.com/micro-plat/hydra/hydra/servers/cron"
)
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API,cron.CRON),
)
app.API("/hello",hello)
app.CRON("/hello",hello,"@every 5s")
app.Start()
}
func hello(ctx hydra.IContext) interface{} {
return "hello world"
}
$ ./flowserver run --plat test
日志如下:
[2020/07/08 09:36:31.140432][i][29f63e41d]初始化: /test/flowserver/api-cron/1.0.0/conf
[2020/07/08 09:36:31.143027][i][29f63e41d]启动[api]服务...
[2020/07/08 09:36:31.643524][i][b65655312]启动成功(api,http://192.168.4.121:8080,1)
[2020/07/08 09:36:31.643885][i][29f63e41d]启动[cron]服务...
[2020/07/08 09:36:31.844844][i][3908a5ccc]启动成功(cron,cron://192.168.4.121,1)
[2020/07/08 09:36:32.346047][d][3908a5ccc]当前server启动为: master
[2020/07/08 09:36:36.648149][i][01751ece6]cron.request: GET /hello from 192.168.4.121
[2020/07/08 09:36:36.648244][i][01751ece6]cron.response: GET /hello 200 193.356µs
[2020/07/08 09:36:41.651858][i][00f45e17b]cron.request: GET /hello from 192.168.4.121
[2020/07/08 09:36:41.651911][i][00f45e17b]cron.response: GET /hello 200 159.694µs
服务已启动,cron server开始周期(每隔5秒)执行任务
$ curl http://192.168.4.121:8080/hello
返回内容:
hello world
app := hydra.NewApp(
hydra.WithPlatName("test"),
hydra.WithSystemName("apiserver"),
hydra.WithServerTypes(http.API),
hydra.WithClusterName("prod"),
)
app.Start()
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.Start()
hydra.Conf.API("8090")
hydra.Conf.API("8090", api.WithHeaderReadTimeout(30), api.WithTimeout(30, 30))
hydra.Conf.API("8080").
WhiteList(whitelist.NewIPList("/**", whitelist.WithIP("192.168.4.121"))).
BlackList(blacklist.WithIP("192.168.4.120"))
-
- 配置*/member*开头人路径不验证,将jwt串串存到header中:
hydra.Conf.API("8080").Jwt(jwt.WithExcludes("/member/**"), jwt.WithHeader())
-
- 登录成功设置jwt信息:
type UserInfo struct{
Name string `json:"name"`
UID string `json:"id"`
}
func login(ctx hydra.IContext) interface{} {
userInfo := UserInfo{UID:"209867923",Name:"colin"}
ctx.User().Auth().Response(&userInfo)
return "success"
}
-
- 从jwt中获取用户信息:
func login(ctx hydra.IContext) interface{} {
userInfo :=new(UserInfo)
ctx.User().Auth().Bind(&userInfo)
return "success"
}
以 202.222. 开头的IP,转发到名称中包含gray的集群(tengo脚本):
hydra.Conf.API("8090").Proxy(`
request := import("request")
app := import("app")
text := import("text")
types :=import("types")
fmt := import("fmt")
getUpCluster := func(){
ip := request.getClientIP()
current:= app.getCurrentClusterName()
if text.has_prefix(ip,"202.222."){
return app.getClusterNameBy("gray")
}
return current
}
upcluster := getUpCluster()
`)
-
- 处理输出(tengo脚本):
hydra.Conf.API("8070").Render(`
request := import("request")
response := import("response")
text := import("text")
types :=import("types")
rc:="<response><code>{@status}</code><msg>{@content}</msg></response>"
getContent := func(){
input:={status:response.getStatus(),content:response.getRaw()["id"]}
if text.has_prefix(request.getPath(),"/tx/request"){
return [200,types.translate(rc,input)]
}
if text.has_prefix(request.getPath(),"/tx/query"){
return [200,types.translate(rc,input),"text/plain"]
}
return [200,response.getContent()]
}
render := getContent()
`)
-
- 服务实现
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.API("/tx/request", request)
app.API("/tx/query", request)
app.API("/request", request)
app.Start()
}
func request(ctx hydra.IContext) interface{} {
return map[string]interface{}{
"id": 101010,
}
}
-
- 请求服务
~/work/bin$ curl http://localhost:8070/tx/request
<response><code>200</code><msg>101010</msg></response>
~/work/bin$ curl http://localhost:8070/request
{"id":101010}
hydra.Conf.Vars().DB("db", oracle.New("hydra/hydra"))
使用方法:
func GetUserInfo(id int64)(map[string]interface{},error)
db:=hydra.C.GetDB()
userInfo,err:=db.Query("select t.* from user_info t where t.id=@id",map[string]interface{}{"id",id})
return userInfo,err
hydra.Conf.Vars().Cache("cache", redis.New("192.168.0.109"))
使用方法:
func GetUserInfo(id int64)(string,error)
cache:=hydra.C.GetCache()
userInfo,err:=cache.Get(fmt.Sprintf("user:info:%d",id))
return userInfo,err
-
- 服务函数
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.API("/request", request)
app.Start()
}
func request(ctx hydra.IContext) interface{} {
return "success"
}
-
- 包含Handle服务的struct构造函数或对象
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.API("/order", NewOrderService)
//或
// app.API("/order", &OrderService{})
app.Start()
}
type OrderService struct {
}
func NewOrderService()*OrderService{
return &OrderService{}
}
func (o *OrderService) Handle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------订单处理----------"))
return "success"
}
-
- 多个服务注册
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.API("/order/*", NewOrderService)
app.Start()
}
type OrderService struct {
}
func NewOrderService()*OrderService{
return &OrderService{}
}
func (o *OrderService) RequestHandle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------收单处理----------"))
return "success"
}
func (o *OrderService) QueryHandle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------查单处理----------"))
return "success"
}
实际注册了两个服务 /order/request,/order/query
-
- RESTful服务注册
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.API("/product", &ProductService{})
app.Start()
}
type ProductService struct {
}
func (o *ProductService) GetHandle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------查询产品----------"))
return "success"
}
func (o *ProductService) PostHandle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------新增产品----------"))
return "success"
}
func (o *OrderService) PutHandle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------修改产品----------"))
return "success"
}
func (o *OrderService) DeleteHandle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------禁用产品----------"))
return "success"
}
实际注册了一个服务 /product
-
- 钩子函数
func main() {
app := hydra.NewApp(
hydra.WithServerTypes(http.API),
)
app.API("/order", NewOrderService)
app.Start()
}
type OrderService struct {
}
func NewOrderService()*OrderService{
return &OrderService{}
}
func (o *OrderService) Handling(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------预处理----------"))
return "success"
}
func (o *OrderService) Handle(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------订单处理----------"))
return "success"
}
func (o *OrderService) Handled(ctx hydra.IContext) interface{} {
ctx.Log().Info("--------后处理----------"))
return "success"
}
-
- 普通字符串
func request(ctx hydra.IContext) interface{} {
return "success"
}
响应内容: success
Content-Type: text/plain; charset=utf-8
-
- JSON字符串
func request(ctx hydra.IContext) interface{} {
return `{"name":"colin"}`
}
响应内容: {"name":"colin"}
Content-Type: application/json; charset=utf-8
-
- XML字符串
func request(ctx hydra.IContext) interface{} {
return `<name>colin</name>`
}
响应内容: <name> colin</name> Content-Type: application/xml; charset=utf-8
-
- Map
func request(ctx hydra.IContext) interface{} {
return map[string]interface{}{"name":"colin"}
}
响应内容: {"name":"colin"}
Content-Type: application/json; charset=utf-8
-
- Struct
func request(ctx hydra.IContext) interface{} {
return &UserInfo{Name:"colin"}
}
响应内容: {"name":"colin"}
Content-Type: application/json; charset=utf-8
-
- Map,指定ContentType
func request(ctx hydra.IContext) interface{} {
ctx.Response().ContentType(context.UTF8XML)
return map[string]interface{}{"name":"colin"}
}
响应内容: <name/>colin <name/> Content-Type: application/xml; charset=utf-8
-
- Struct,指定ContentType
func request(ctx hydra.IContext) interface{} {
ctx.Response().ContentType(context.UTF8XML)
return &UserInfo{Name:"colin"}
}
响应内容: <name/>colin <name/> Content-Type: application/xml; charset=utf-8
-
- 普通错误
func request(ctx hydra.IContext) interface{} {
return fmt.Errorf("err")
}
响应内容: err Content-Type: text/plain; charset=utf-8
-
- 带状态码的错误
func request(ctx hydra.IContext) interface{} {
return errs.New(500,"err")
}
状态码: 500 响应内容: err Content-Type: text/plain; charset=utf-8
架构图