.net core微服务之服务发现
一:nacoshttps://nacos.io/docs/latest/what-is-nacos/
https://github.com/alibaba/nacos
二:consul
https://developer.hashicorp.com/consul/docs?product_intent=consul
https://github.com/hashicorp/consul
服务发现的框架常用的还有zookeeper eureka等,这里准备使用nacos
前置条件准备 docker,yaml
version: "3.8"
networks:
caseor_bridge:
driver: bridge
ipam:
config:
- subnet: 172.0.10.0/24
services:
mysql:
container_name: mysql
image: mysql
privileged: true
command: --character-set-server=utf8mb4 --collation-server=utf8mb4_general_ci --max_connections=2000 --max_allowed_packet=64M
environment:
- TZ=Asia/Shanghai
- MYSQL_ROOT_PASSWORD=123456
volumes:
- ./mysql:/var/lib/mysql
ports:
- "3306:3306"
healthcheck:
test: [ "CMD", "mysqladmin" ,"ping", "-h", "localhost" ]
interval: 5s
timeout: 10s
retries: 10
networks:
caseor_bridge:
ipv4_address: 172.0.10.3
redis:
image: redis
container_name: "redis"
ports:
- "6379:6379"
volumes:
- ./redis/data:/data
- ./redis/conf:/usr/local/etc/redis
networks:
caseor_bridge:
ipv4_address: 172.0.10.4
nacos1:
container_name: nacos1
hostname: nacos1
image: nacos/nacos-server
environment:
- MODE=cluster
- PREFER_HOST_MODE=hostname
- NACOS_SERVERS=nacos1:8848 nacos2:8848 nacos3:8848
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_SERVICE_HOST=172.0.10.3
- MYSQL_SERVICE_PORT=3306
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
- JVM_XMS=128m
- JVM_XMX=128m
- JVM_XMN=128m
volumes:
- ./nacos/cluster-logs/nacos1:/home/nacos/logs
- ./nacos/init.d:/home/nacos/init.d
ports:
- 8850:8848
- 7850:7848
- 9870:9848
- 9852:9849
depends_on:
- mysql
networks:
caseor_bridge:
ipv4_address: 172.0.10.5
nacos2:
container_name: nacos2
hostname: nacos2
image: nacos/nacos-server
environment:
- MODE=cluster
- PREFER_HOST_MODE=hostname
- NACOS_SERVERS=nacos1:8848 nacos2:8848 nacos3:8848
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_SERVICE_HOST=172.0.10.3
- MYSQL_SERVICE_PORT=3306
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
- JVM_XMS=128m
- JVM_XMX=128m
- JVM_XMN=128m
volumes:
- ./nacos/cluster-logs/nacos2:/home/nacos/logs
- ./nacos/init.d:/home/nacos/init.d
ports:
- 8849:8848
- 7849:7848
- 9869:9848
- 9851:9849
depends_on:
- mysql
networks:
caseor_bridge:
ipv4_address: 172.0.10.6
nacos3:
container_name: nacos3
hostname: nacos3
image: nacos/nacos-server
environment:
- MODE=cluster
- PREFER_HOST_MODE=hostname
- NACOS_SERVERS=nacos1:8848 nacos2:8848 nacos3:8848
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_SERVICE_HOST=172.0.10.3
- MYSQL_SERVICE_PORT=3306
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
- JVM_XMS=128m
- JVM_XMX=128m
- JVM_XMN=128m
volumes:
- ./nacos/cluster-logs/nacos3:/home/nacos/logs
- ./nacos/init.d:/home/nacos/init.d
ports:
- 8848:8848
- 7848:7848
- 9848:9848
- 9849:9849
depends_on:
- mysql
networks:
caseor_bridge:
ipv4_address: 172.0.10.7
etcd:
container_name: etcd
hostname: etcd
image: bitnami/etcd
volumes:
- ./etcd/data:/bitnami/etcd
environment:
ETCD_ENABLE_V2: "true"
ALLOW_NONE_AUTHENTICATION: "yes"
ETCD_ADVERTISE_CLIENT_URLS: "http://etcd:2379" #https://github.com/apache/apisix-dashboard/issues/2756 需要更换为host域名不能使用0.0.0.0
ETCD_LISTEN_CLIENT_URLS: "http://0.0.0.0:2379"
ports:
- "2379:2379/tcp"
networks:
caseor_bridge:
ipv4_address: 172.0.10.8
apisix:
container_name: apisix
hostname: apisix
image: apache/apisix
volumes:
- ./apisix/log:/usr/local/apisix/logs
- ./apisix/conf/config.yaml:/usr/local/apisix/conf/config.yaml:ro
depends_on:
- etcd
ports:
- "9088:9088/tcp"
- "9180:9180/tcp"
- "127.0.0.1:9090:9090/tcp"
networks:
caseor_bridge:
ipv4_address: 172.0.10.9
apisix-dashboard:
container_name: apisix-dashboard
image: apache/apisix-dashboard
depends_on:
- etcd
ports:
- "9188:9188"
volumes:
- ./apisix/conf/dashboard.yaml:/usr/local/apisix-dashboard/conf/conf.yaml
networks:
caseor_bridge:
ipv4_address: 172.0.10.10
rabbitmq01:
image: rabbitmq
container_name: rabbitmq01
hostname: rabbitmq01
environment:
- TZ=Asia/Shanghai
- RABBITMQ_DEFAULT_USER=root #自定义登录账号
- RABBITMQ_DEFAULT_PASS=123456 #自定义登录密码
- RABBITMQ_ERLANG_COOKIE='secret_cookie'
ports:
- "15672:15672"
- "5672:5672"
volumes:
- ./rabbitmq/mq1/data:/var/lib/rabbitmq
- ./rabbitmq/mq1/conf:/etc/rabbitmq
command:bash -c "sleep 10; rabbitmq-server;"
networks:
caseor_bridge:
ipv4_address: 172.0.10.11
rabbitmq02:
image: rabbitmq
container_name: rabbitmq02
hostname: rabbitmq02
environment:
- TZ=Asia/Shanghai
- RABBITMQ_DEFAULT_USER=root #自定义登录账号
- RABBITMQ_DEFAULT_PASS=123456 #自定义登录密码
- RABBITMQ_ERLANG_COOKIE='secret_cookie'
ports:
- "15673:15672"
- "5673:5672"
depends_on:
- rabbitmq01
volumes:
- ./rabbitmq/mq2/data:/var/lib/rabbitmq
- ./rabbitmq/mq2/conf:/etc/rabbitmq
command:bash -c "sleep 10; rabbitmq-server;"
networks:
caseor_bridge:
ipv4_address: 172.0.10.12
rabbitmq03:
image: rabbitmq
container_name: rabbitmq03
hostname: rabbitmq03
environment:
- TZ=Asia/Shanghai
- RABBITMQ_DEFAULT_USER=root #自定义登录账号
- RABBITMQ_DEFAULT_PASS=123456 #自定义登录密码
- RABBITMQ_ERLANG_COOKIE='secret_cookie'
ports:
- "15674:15672"
- "5674:5672"
depends_on:
- rabbitmq01
volumes:
- ./rabbitmq/mq3/data:/var/lib/rabbitmq
- ./rabbitmq/mq3/conf:/etc/rabbitmq
command:bash -c "sleep 10; rabbitmq-server;"
networks:
caseor_bridge:
ipv4_address: 172.0.10.13
# 开启web管理
# rabbitmq-plugins enable rabbitmq_management
# # 加入rabbitmq集群
# # rabbit1
# rabbitmqctl stop_app
# rabbitmqctl reset
# rabbitmqctl start_app
# # rabbit2
# rabbitmqctl stop_app
# rabbitmqctl reset
# rabbitmqctl join_cluster --ram rabbit@rabbit1
# rabbitmqctl start_app
# # rabbit3
# rabbitmqctl stop_app
# rabbitmqctl reset
# rabbitmqctl join_cluster --ram rabbit@rabbit1
# rabbitmqctl start_appView Code使用docker启动mysql
mysql:
container_name: mysql
image: mysql
privileged: true
command: --character-set-server=utf8mb4 --collation-server=utf8mb4_general_ci --max_connections=2000 --max_allowed_packet=64M
environment:
- TZ=Asia/Shanghai
- MYSQL_ROOT_PASSWORD=123456
volumes:
- ./mysql:/var/lib/mysql
ports:
- "3306:3306"
healthcheck:
test: [ "CMD", "mysqladmin" ,"ping", "-h", "localhost" ]
interval: 5s
timeout: 10s
retries: 10
networks:
caseor_bridge:
ipv4_address: 172.0.10.3View Code在数据库创建nacos数据库
https://github.com/alibaba/nacos/blob/master/config/src/main/resources/META-INF/nacos-db.sql准备三个nacos
nacos1:
container_name: nacos1
hostname: nacos1
image: nacos/nacos-server
environment:
- MODE=cluster
- PREFER_HOST_MODE=hostname
- NACOS_SERVERS=nacos1:8848 nacos2:8848 nacos3:8848
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_SERVICE_HOST=172.0.10.3
- MYSQL_SERVICE_PORT=3306
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
- JVM_XMS=128m
- JVM_XMX=128m
- JVM_XMN=128m
volumes:
- ./nacos/cluster-logs/nacos1:/home/nacos/logs
- ./nacos/init.d:/home/nacos/init.d
ports:
- 8850:8848
- 7850:7848
- 9870:9848
- 9852:9849
depends_on:
- mysql
networks:
caseor_bridge:
ipv4_address: 172.0.10.5
nacos2:
container_name: nacos2
hostname: nacos2
image: nacos/nacos-server
environment:
- MODE=cluster
- PREFER_HOST_MODE=hostname
- NACOS_SERVERS=nacos1:8848 nacos2:8848 nacos3:8848
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_SERVICE_HOST=172.0.10.3
- MYSQL_SERVICE_PORT=3306
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
- JVM_XMS=128m
- JVM_XMX=128m
- JVM_XMN=128m
volumes:
- ./nacos/cluster-logs/nacos2:/home/nacos/logs
- ./nacos/init.d:/home/nacos/init.d
ports:
- 8849:8848
- 7849:7848
- 9869:9848
- 9851:9849
depends_on:
- mysql
networks:
caseor_bridge:
ipv4_address: 172.0.10.6
nacos3:
container_name: nacos3
hostname: nacos3
image: nacos/nacos-server
environment:
- MODE=cluster
- PREFER_HOST_MODE=hostname
- NACOS_SERVERS=nacos1:8848 nacos2:8848 nacos3:8848
- SPRING_DATASOURCE_PLATFORM=mysql
- MYSQL_SERVICE_HOST=172.0.10.3
- MYSQL_SERVICE_PORT=3306
- MYSQL_SERVICE_USER=root
- MYSQL_SERVICE_PASSWORD=123456
- MYSQL_SERVICE_DB_NAME=nacos
- MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&allowPublicKeyRetrieval=true
- JVM_XMS=128m
- JVM_XMX=128m
- JVM_XMN=128m
volumes:
- ./nacos/cluster-logs/nacos3:/home/nacos/logs
- ./nacos/init.d:/home/nacos/init.d
ports:
- 8848:8848
- 7848:7848
- 9848:9848
- 9849:9849
depends_on:
- mysql
networks:
caseor_bridge:
ipv4_address: 172.0.10.7具体配置可以参考官网
查看nacos 控制台 http://127.0.0.1:8848/nacos/,http://127.0.0.1:8849/nacos/,http://127.0.0.1:8850/nacos/
可以看到集群已经搭建完成了
在.net core中使用nacos
https://github.com/nacos-group/nacos-sdk-csharp
nacos-sdk-csharp.AspNetCore
nacos-sdk-csharp.Extensions.Configuration在appsettings.json中新增Nacos配置
"Nacos": {
"ServerAddresses": [ "http://192.168.110.39:8848" ],
//命名空间GUID,public默认没有
"Namespace": "779857e5-b517-437c-9026-f04c98d4bac1",
// 配置中心
"Listeners": [
{
"Group": "DEFAULT_GROUP",
"DataId": "appsettings.json",
"Optional": false
}
],
// 服务发现
"ServiceName": "saas-system",
"GroupName": "DEFAULT_GROUP"
}
在program下新增
//读取nacos配置文件
builder.Host.UseNacosConfig("Nacos");
//注册服务到nacos
builder.Services.AddNacosAspNet(builder.Configuration, "Nacos");在program下继续读取appsettings的配置信息,首选需要在nacos上的appsettings配置信息
启动该服务
dotnet run --urls=http://*:8083
dotnet run --urls=http://*:8084
dotnet run --urls=http://*:8085
在其他服务中调用当前服务接口
public async Task<IActionResult> TestNacos()
{
var instance= await _namingService.SelectOneHealthyInstance("saas-system", "DEFAULT_GROUP");
var host = $"{instance.Ip}:{instance.Port}";
var baseUrl = instance.Metadata.TryGetValue("secure", out _)
? $"https://{host}"
: $"http://{host}";
var url = $"{baseUrl}/system/tenant.package.query.list";
using HttpClient client = new();
var result = await client.GetAsync(url);
return Ok(await result.Content.ReadAsStringAsync());
}
来源:https://www.cnblogs.com/AsprosL/p/18021312
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