Nacos的使用指南

Nacos 致力于帮助您发现、配置和管理微服务。Nacos 提供了一组简单易用的特性集，帮助您快速实现动态服务发现、服务配置、服务元数据及流量管理。

相关文档：https://nacos.io/zh-cn/docs/deployment.html
Github地址：https://github.com/alibaba/nacos

1.安装

安装依赖

Nacos运行时需要JDK 1.8+环境。
Nacos需要mysql 5.6.5+数据库。
Nacos集群版需要至少三个节点。

服务器

系统：centos 7.x
网络：支持访问公网
服务器：单机版 1台 集群版 3台

配置示例

# 配置文件
/opt/nacos/conf/application.properties

#*************** Spring Boot Related Configurations ***************#
### Default web context path:
server.servlet.contextPath=/nacos
### Default web server port:
server.port=8848

#*************** Network Related Configurations ***************#
### If prefer hostname over ip for Nacos server addresses in cluster.conf:
# nacos.inetutils.prefer-hostname-over-ip=false

### Specify local server's IP:
# nacos.inetutils.ip-address=



#*************** Config Module Related Configurations ***************#
### If user MySQL as datasource:
spring.datasource.platform=mysql

### Count of DB:
db.num=1

### Connect URL of DB:
db.url.0=jdbc:mysql://192.168.1.11:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true
db.user=root
db.password=123456


#*************** Naming Module Related Configurations ***************#
### Data dispatch task execution period in milliseconds:
# nacos.naming.distro.taskDispatchPeriod=200

### Data count of batch sync task:
# nacos.naming.distro.batchSyncKeyCount=1000

### Retry delay in milliseconds if sync task failed:
# nacos.naming.distro.syncRetryDelay=5000

### If enable data warmup. If set to false, the server would accept request without local data preparation:
# nacos.naming.data.warmup=true

### If enable the instance auto expiration, kind like of health check of instance:
# nacos.naming.expireInstance=true


### If enable the empty service auto clean, services with an empty instance are automatically cleared
nacos.naming.empty-service.auto-clean=false
### The empty service cleanup task delays startup time in milliseconds
nacos.naming.empty-service.clean.initial-delay-ms=60000
### The empty service cleanup task cycle execution time in milliseconds
nacos.naming.empty-service.clean.period-time-ms=20000


#*************** CMDB Module Related Configurations ***************#
### The interval to dump external CMDB in seconds:
# nacos.cmdb.dumpTaskInterval=3600

### The interval of polling data change event in seconds:
# nacos.cmdb.eventTaskInterval=10

### The interval of loading labels in seconds:
# nacos.cmdb.labelTaskInterval=300

### If turn on data loading task:
# nacos.cmdb.loadDataAtStart=false


#*************** Metrics Related Configurations ***************#
### Metrics for prometheus
#management.endpoints.web.exposure.include=*

### Metrics for elastic search
management.metrics.export.elastic.enabled=false
#management.metrics.export.elastic.host=http://localhost:9200

### Metrics for influx
management.metrics.export.influx.enabled=false
#management.metrics.export.influx.db=springboot
#management.metrics.export.influx.uri=http://localhost:8086
#management.metrics.export.influx.auto-create-db=true
#management.metrics.export.influx.consistency=one
#management.metrics.export.influx.compressed=true


#*************** Access Log Related Configurations ***************#
### If turn on the access log:
server.tomcat.accesslog.enabled=true

### The access log pattern:
server.tomcat.accesslog.pattern=%h %l %u %t "%r" %s %b %D %{User-Agent}i

### The directory of access log:
server.tomcat.basedir=


#*************** Access Control Related Configurations ***************#
### If enable spring security, this option is deprecated in 1.2.0:
#spring.security.enabled=false

### The ignore urls of auth, is deprecated in 1.2.0:
spring.security.enabled=false
management.security=false
nacos.security.ignore.urls=/**
#nacos.security.ignore.urls=/,/error,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-fe/public/**,/v1/auth/**,/v1/console/health/**,/actuator/**,/v1/console/server/**

### The auth system to use, currently only 'nacos' is supported:
nacos.core.auth.system.type=nacos

### If turn on auth system:
nacos.core.auth.enabled=false

### The token expiration in seconds:
nacos.core.auth.default.token.expire.seconds=18000

### The default token:
nacos.core.auth.default.token.secret.key=SecretKey012345678901234567890123456789012345678901234567890123456789

### Turn on/off caching of auth information. By turning on this switch, the update of auth information would have a 15 seconds delay.
nacos.core.auth.caching.enabled=false


#*************** Istio Related Configurations ***************#
### If turn on the MCP server:
nacos.istio.mcp.server.enabled=false

# 配置文件
/opt/nacos/conf/cluster.conf

# ip:port
192.168.1.11:8848
192.168.1.12:8848
192.168.1.13:8848

Nacos 1.2.1版本安装（单机版）：

服务器1：jdk、Nacos-server、mysql

# 下载nacos
cd /opt
# zip版本
wget https://github.com/alibaba/nacos/releases/download/1.3.0/nacos-server-1.3.0.zip
# tar.gz版本
wget https://github.com/alibaba/nacos/releases/download/1.3.0/nacos-server-1.3.0.tar.gz

# 安装jdk

# 安装mysql

# 解压
cd /opt
unzip nacos-server-1.2.1.zip

# 创建 nacos_config 数据库
mysql -h192.168.1.11 -P3306 -uroot -p123456 -e "create database nacos_config;"
mysql -h192.168.1.11 -P3306 -uroot -p123456 -e "show databases;"

vim /opt/nacos/conf/nacos-mysql.sql
在最上端增加：use nacos_config

# 导入 nacos sql 脚本
mysql -h192.168.1.11 -P3306 -uroot -p123456 < /opt/nacos/conf/nacos-mysql.sql

# 配置文件（复制配置示例修改即可）
vim /opt/nacos/conf/application.properties（见配置示例）

# 启动单机版 nacos
cd /opt/nacos/bin/
sh startup.sh -m standalone

# 访问 nacos
在浏览器输入：192.168.1.11:8848/nacos

Nacos 1.2.1版本安装（集群版）：

服务器1：jdk、Nacos-server 、mysql
服务器2：jdk、Nacos-server
服务器3：jdk、Nacos-server

在三台服务器分别安装 Nacos-server 单机版
部署完成后需要将单机版 Nacos 停掉（为了启动 Nacos 集群）

# 在三台服务器进行操作
# 配置集群版配置文件（复制配置示例修改即可）
vim /opt/nacos/conf/cluster.conf

# 在三台服务器进行操作
# 启动集群版 nacos
cd /opt/nacos/bin/
sh startup.sh

# 访问 nacos
在浏览器输入任一节点IP、Port：192.168.1.11:8848/nacos