Nacos Configuration Center

Overview

Configuration Center is an important component in microservice architecture, used to centrally manage configuration information for microservices. The configuration center can achieve centralized and dynamic management of configurations, and provide functions such as version management, grayscale publishing, traffic control, and permission management for configurations. Through the configuration center, the problem of decentralized management in traditional static configurations can be effectively solved. Services created by sponge support integration with the Nacos configuration center.

Configuration Steps

1. Code Integration
   To integrate the Nacos configuration center into your Web or gRPC service, please copy the initialization code to the project directory:

   cmd/xxx/initial/initApp.go

2. Configuration File Preparation
   Create the configuration file configs/xxx_cc.yml and fill in the Nacos connection information:

   # nacos settings
   nacos:
     ipAddr: "127.0.0.1"    # ip
     port: 8848             # port
     scheme: "http"         # http or https
     contextPath: "/nacos"  # path
     namespaceID: "your name space id"
     group: "dev"           # group name, e.g., dev, prod, test
     dataID: "user.yml"     # configuration file id
     format: "yaml"         # configuration file type json,yaml,toml

Local Nacos Service Startup

1. Start the local Nacos service using the Nacos configuration provided by sponge
2. Access the management console: http://localhost:8848/nacos/index.html
3. Log in using the default username and password (nacos/nacos)

Configuration Example

1. In the Nacos console:

   • Create namespace user
   • Create new configuration:
     • Data ID: user.yml
     • Group: dev
     • Content: Copy the content of the configs/user.yml file

   

   Nacos Configuration Example

2. Modify project configuration:

   • Edit the configs/user_cc.yml file and fill in the correct Nacos connection information

Service Startup

# Navigate to the project directory
cd cmd/user

# Compile the project
go build

# Start the service (using configuration center)
./user -enable-cc -c=../../configs/user_cc.yml

Deployment Notes

When deploying with Docker or Kubernetes, simply replace the default startup command with the configuration center startup method. The deployment scripts generated by sponge already include both startup options, which you can choose according to your needs.