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foreword
- Nacos is the most important component in the SpringCloudAlibaba architecture.
- Nacos is a dynamic service discovery, configuration, and service management platform that is easier to help build cloud-native applications. It provides three major functions: registry center, configuration center, and dynamic DNS service. Can seamlessly connect to popular frameworks such as Springcloud, Spring, Dubbo, etc.
- nacos supports AP and CP mode switching, the default is AP mode, eureka only supports AP mode, zookeeper only supports CP mode
1. Nacos stand-alone installation
1. Download nacos image
The 2.2 version I use here, you can choose the corresponding version according to your needs
docker pull nacos/nacos-server:v2.2.0
2. Get the configuration file
Visit the official website: https://github.com/alibaba/nacos/releases
to download the corresponding version installation package
3. Modify the configuration file
You can use derby or mysql for persistence. Here I take mysql configuration as an example
to modify application.properties (I wrote it to death directly here, or you can specify the placeholder form when docker run, which is of little significance)
注：connectTimeout=10000&socketTimeout=30000，原配置是1000和3000，连接mysql会出现超时进而出现No DataSource set错误
占位符形式，数据库用户名配置可以写成db.user.0=$(MYSQL_SERVICE_USER:root)
4. Put the configuration file in the server nacos configuration path
I put it in the /opt/nacos directory here, and it will be mapped to the container when building the nacos container
5. Start the nacos container
docker run -d --name nacos -p 8848:8848 -p 9848:9848 -p 9849:9849 -e MODE=standalone -v /opt/nacos/logs/:/home/nacos/logs -v /opt/nacos/conf/:/home/nacos/conf/ --restart=always nacos/nacos-server
6. Visit the page
end
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