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微服务 之 配置中心

作者: 诺之林 | 来源:发表于2020-10-28 15:16 被阅读0次

    本文的示例代码参考apollo-config-client / cloud-config-server / cloud-config-client / alibaba-config-client

    Contents

    Ctrip Apollo Config

    Ctrip Apollo Config Server

    wget http://file.nuozhilin.site/5_macos/apollo-quick-start-1.7.1.zip

unzip apollo-quick-start-1.7.1.zip -d apollo && cd apollo

    docker run --name mysql-apollo -p 3306:3306 -e MYSQL_ROOT_PASSWORD=123456 -d mysql:5.7.17

docker exec -i mysql-apollo mysql -uroot -p123456 < ./sql/apolloportaldb.sql

docker exec -i mysql-apollo mysql -uroot -p123456  <<< "select Id, AppId, Name from ApolloPortalDB.App;"
# Id  AppId      Name
# 1   SampleApp  Sample App

docker exec -i mysql-apollo mysql -uroot -p123456 < ./sql/apolloconfigdb.sql

docker exec -i mysql-apollo mysql -uroot -p123456  <<< "select NamespaceId, Value, Comment from ApolloConfigDB.Item;"
# NamespaceId  Value  Comment
# 1            100    sample timeout??

    vim demo.sh
# apollo_config_db_url=jdbc:mysql://localhost:3306/ApolloConfigDB?characterEncoding=utf8
# apollo_config_db_username=root
# apollo_config_db_password=123456
# apollo_portal_db_url=jdbc:mysql://localhost:3306/ApolloPortalDB?characterEncoding=utf8
# apollo_portal_db_username=root
# apollo_portal_db_password=123456

./demo.sh start
# Config service started. You may visit http://localhost:8080 for service status now!
# Portal started. You can visit http://localhost:8070 now!

jps
# 42824 apollo-portal.jar
# 42635 apollo-service.jar

    Ctrip Apollo Config Client

    spring init -b=2.2.10.RELEASE -j=1.8 -l=kotlin -d=web --build=gradle apollo-config-client && cd apollo-config-client

    vim build.gradle.kts
# implementation("com.ctrip.framework.apollo:apollo-client:1.4.0")

    vim src/main/resources/application.properties

    server.port=8001
app.id=SampleApp
apollo.meta=http://127.0.0.1:8080
apollo.cacheDir=./config

    vim src/main/kotlin/com/example/apolloconfigclient/DemoController.kt

    package com.example.apolloconfigclient

import com.ctrip.framework.apollo.ConfigService
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController

@RestController
class DemoController {
    @GetMapping("/")
    fun demo(): String {
        val config = ConfigService.getAppConfig()
        return config.getProperty("timeout", "-1")
    }
}

    ./gradlew bootrun

curl localhost:8001
# 100

    Spring Cloud Config

    Git Repository

    .
└── config
    ├── cloud-config-client-dev.yml
    ├── cloud-config-client-prod.yml
    ├── cloud-config-server-dev.yml
    └── cloud-config-server-prod.yml

1 directory, 4 files

    cat config/cloud-config-server-dev.yml
# data:
#   env: server dev
cat config/cloud-config-server-prod.yml
# data:
#   env: server prod

    Spring Cloud Config Server

    spring init -b=2.2.10.RELEASE -j=1.8 -l=kotlin -d=web,cloud-config-server --build=gradle cloud-config-server && cd cloud-config-server

    vim src/main/kotlin/com/example/cloudconfigserver/DemoApplication.kt

    package com.example.cloudconfigserver

import org.springframework.boot.autoconfigure.SpringBootApplication
import org.springframework.boot.runApplication
import org.springframework.cloud.config.server.EnableConfigServer

@EnableConfigServer
@SpringBootApplication
class DemoApplication

fun main(args: Array<String>) {
    runApplication<DemoApplication>(*args)
}

    vim src/main/resources/application.properties

    server.port=8001

    vim src/main/resources/bootstrap.yml

    spring:
  application:
    name: cloud-config-server
  cloud:
    config:
      server:
        git:
          uri: https://github.com/yl33643/spring-cloud-config-file.git
          search-paths: config
          default-label: master

    ./gradlew bootrun

curl http://localhost:8001/cloud-config-server-dev.yml
# data:
#   env: server dev
curl http://localhost:8001/cloud-config-server-prod.yml
# data:
#   env: server prod
curl http://localhost:8001/cloud-config-client-dev.yml
# data:
#   env: client dev
curl http://localhost:8001/cloud-config-client-prod.yml
# data:
#   env: client prod

    Spring Cloud Config Client

    spring init -b=2.2.10.RELEASE -j=1.8 -l=kotlin -d=web,cloud-config-client --build=gradle cloud-config-client && cd cloud-config-client

    vim src/main/resources/application.properties

    server.port=8101

    vim src/main/resources/bootstrap.yml

    spring:
  application:
    name: cloud-config-client
  cloud:
    config:
      uri: http://localhost:8001
      label: master
      profile: dev

    vim src/main/kotlin/com/example/cloudconfigclient/DemoController.kt

    package com.example.cloudconfigclient

import org.springframework.beans.factory.annotation.Value
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController

@RestController
class DemoController {
    @Value("\${data.env}")
    private lateinit var env: String

    @GetMapping("/")
    fun demo(): String {
        return env
    }
}

    ./gradlew bootrun

curl localhost:8101
# client dev

    vim src/main/resources/bootstrap.yml

    spring:
  application:
    name: cloud-config-client
  cloud:
    config:
      uri: http://localhost:8001
      label: master
      profile: prod

    ./gradlew bootrun

curl localhost:8101
# client prod

    Auto Refresh Config

    # cloud-config-client
vim build.gradle.kts
# implementation("org.springframework.boot:spring-boot-starter-actuator")

    vim src/main/resources/application.properties

    server.port=8101
management.endpoints.web.exposure.include=*

    vim src/main/kotlin/com/example/cloudconfigclient/DemoController.kt

    package com.example.cloudconfigclient

import org.springframework.beans.factory.annotation.Value
import org.springframework.cloud.context.config.annotation.RefreshScope
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController

@RestController
@RefreshScope
class DemoController {
    @Value("\${data.env}")
    private lateinit var env: String

    @GetMapping("/")
    fun demo(): String {
        return env
    }
}

    ./gradlew bootrun

curl localhost:8101
# client prod
    • 更新"config/cloud-config-client-prod.yml"内容"env: client prod refresh"
    curl -X POST localhost:8101/actuator/refresh
# ["config.client.version","data.env"]

curl localhost:8101
# client prod refresh
    • 配置Git Repository的Webhooks自动触发上述更新配置API

    Alibaba Nacos Config

    Alibaba Nacos Config Server

    wget http://file.nuozhilin.site/5_macos/nacos-server-1.4.0-BETA.tar.gz

tar xf nacos-server-1.4.0-BETA.tar.gz && cd nacos

sh bin/startup.sh -m standalone

    Data ID => alibaba-config-client

配置内容 => data.env=client dev

    Alibaba Nacos Config Client

    spring init -b=2.2.10.RELEASE -j=1.8 -l=kotlin -d=web,alibaba-nacos-config --build=gradle alibaba-config-client && cd alibaba-config-client

    vim src/main/resources/application.properties

    server.port=8201

    vim src/main/resources/bootstrap.yml

    spring:
  application:
    name: alibaba-config-client
  cloud:
    nacos:
      config:
        server-addr: http://127.0.0.1:8848

    vim src/main/kotlin/com/example/alibabaconfigclient/DemoController.kt

    package com.example.alibabaconfigclient

import org.springframework.beans.factory.annotation.Value
import org.springframework.cloud.context.config.annotation.RefreshScope
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController

@RestController
@RefreshScope
class DemoController {
    @Value("\${data.env}")
    private lateinit var env: String

    @GetMapping("/")
    fun demo(): String {
        return env
    }
}

    ./gradlew bootrun

curl localhost:8201
# client dev
    • 更新配置
    配置内容 => data.env=client dev refresh

    curl localhost:8201
# client dev refresh

    参考

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