export-client是主要是EDGEX系统数据转发的注册服务,export-client使用介绍如下,他有2个启动参数可以配置:
- registry是一个bool量,True表示export-client的配置参数是从consul拉取,False表示从本地配置文件载入。
- profile本地配置文件的路径, 即便registry=True, 该参数也必须要指明一个配置文件,因为连接consul服务所需的host,port等参数必须从本地的配置文件中获取。
Usage: %s [options]
Server Options:
-r, --registry Indicates service should use Registry
-p, --profile <name> Indicate configuration profile other than default
Common Options:
-h, --help Show this message
Table of Contents
export-client的配置文件
[Writable]
LogLevel = 'INFO'
[Service]
BootTimeout = 30000
ClientMonitor = 15000
CheckInterval = '10s'
Host = 'localhost'
Port = 48071
Protocol = 'http'
ReadMaxLimit = 100
StartupMsg = 'This is the Export Client Microservice'
Timeout = 5000
[Registry]
Host = 'localhost'
Port = 8500
Type = 'consul'
[Logging]
EnableRemote = false
File = './logs/edgex-export-client.log'
[Clients]
[Clients.Distro]
Protocol = 'http'
Host = 'localhost'
Port = 48070
[Clients.Logging]
Protocol = 'http'
Host = 'localhost'
Port = 48061
[Databases]
[Databases.Primary]
Host = 'localhost'
Name = 'exportclient'
Password = ''
Port = 27017
Username = ''
Timeout = 5000
Type = 'mongodb'
如上是项目自带的export-client的配置文件 ,主要分6部分,export-client启动后会将配置文件的信息导入如下结构中,若registry=True则根据Registry中的信息连接consul并拉取相应的配置信息覆盖之前从本地配置文件中读取到的信息。
type ConfigurationStruct struct {
Writable WritableInfo
Clients map[string]config.ClientInfo
Databases map[string]config.DatabaseInfo
Logging config.LoggingInfo
Registry config.RegistryInfo
Service config.ServiceInfo
}
Writable
type WritableInfo struct {
LogLevel string
}
LogLevel 日志等级
Clients
// ClientInfo provides the host and port of another service in the eco-system.
type ClientInfo struct {
// Host is the hostname or IP address of a service.
Host string
// Port defines the port on which to access a given service
Port int
// Protocol indicates the protocol to use when accessing a given service
Protocol string
}
Host 微服务的地址
Port 微服务的端口
Protocol 微服务所使用的协议,目前仅支持http
export-client运行时需要使用其他微服务提供的功能,Client便是连接其他微服务所必须的参数,这是一个map参数,key值便是其他微服务的名字,value便是client的具体参数信息, export-client正常运行一般需要使用logging和export-distro两个微服务。
Databases
type DatabaseInfo struct {
Type string
Timeout int
Host string
Port int
Username string
Password string
Name string
}
Type 数据库类型,目前仅支持 mongodb
Timeout 数据库连接超时,单位:s
Host 数据库地址
Port 数据库端口
Username 数据库登录用户名
Password 数据库登录密码
Name 数据库名字
export-client当前支持两种Primary数据库mongodb和redisdb。
Logging
// LoggingInfo provides basic parameters related to where logs should be written.
type LoggingInfo struct {
EnableRemote bool
File string
}
EnableRemote True: log于support-logging微服务持久化(support-logging的连接参数由Clients字段提供), False:log于本地文件持久化
File log本地持久化时日志文件的路径
Registry
// RegistryInfo defines the type and location (via host/port) of the desired service registry (e.g. Consul, Eureka)
type RegistryInfo struct {
Host string
Port int
Type string
}
consul连接参数
Service
同support-logging