One click installation of highly available Nacos clusters in rainbow

The current document describes how to manage the platform through the cloud native application Rainbond One click installation high availability Nacos colony . This way is suitable for people who don't know much about Kubernetes、 Users of complex technologies such as containerization , Reduced in Kubernetes Deployment in China Nacos Threshold .

Background information

Rainbond And Nacos The combination of

Rainbond It is an easy-to-use open source cloud native application management platform . With the aid of it , Users can complete the deployment, operation and maintenance of micro services in the graphical interface . With the help of Kubernetes And the ability of containerization Technology , Self heal the fault 、 The business enabled by automatic operation and maintenance capabilities such as elastic expansion .

Rainbond Built in native Service Mesh Microservice framework , At the same time Spring Cloud、Dubbo And other micro service frameworks also have a good integration experience . Therefore, a large number of Rainbond The user may also be Nacos Users of the microservice registry . Such users no longer have to care about how to deploy Nacos colony ,Rainbond Team will Nacos Make an application template that can be deployed with one click , Free download and installation for open source users . This installation method greatly reduces the use of users Nacos The deployment burden of the cluster , At present, we support 1.4.2 And 2.0.4 edition .

About application templates

The application template is for Rainbond Installation package of cloud native application management platform , Users can install the business system into their own system based on it Rainbond In the middle . No matter how complex the business system is , The application template will abstract it into an application , Image of all components in the application 、 The configuration information and the relationship between all components are installed together .

Prerequisite

• Deployed Rainbond Cloud native application management platform , Quick experience version Can be in person PC Run in the environment at the cost of starting a container .

• Internet connection .

Quick start

• Visit the built-in open source app store

Choose the one on the left Application market TAB , Switch to... In the page Open source app store TAB , Search keywords nacos You can find it Nacos-cluster application .

• A key to install

Click on Nacos-cluster On the right side of the install You can enter the installation page , After filling in the simple information , Click on determine You can start the installation , The page automatically jumps to the topology view .

Parameter description ：

Options	explain
Team name	User built workspace , Isolate by namespace
Cluster name	choice Nacos To which one K8s colony
Select application	choice Nacos To which application is deployed , The application contains several related components
Application version	choice Nacos Version of , Currently, the optional version is 1.4.2、2.0.4

Wait a few minutes ,Nacos The cluster will be installed , And run it .

• test

Other microservices need to be registered , Can be built for Nacos Of Dependency relationship after , Use ${NACOS_HOST}:${NACOS_PORT} To connect to Nacos colony .

• Service registration

  curl -X PUT "http://${NACOS_HOST}:${NACOS_PORT}/nacos/v1/ns/instance?serviceName=nacos.naming.serviceName&ip=20.18.7.10&port=8080"

• Service discovery

  curl -X GET "http://${NACOS_HOST}:${NACOS_PORT}/nacos/v1/ns/instance/list?serviceName=nacos.naming.serviceName"

• Release configuration

  curl -X POST "http://${NACOS_HOST}:${NACOS_PORT}/nacos/v1/cs/configs?dataId=nacos.cfg.dataId&group=test&content=helloWorld"

• Get configuration

  curl -X GET "http://${NACOS_HOST}:${NACOS_PORT}/nacos/v1/cs/configs?dataId=nacos.cfg.dataId&group=test"

Advanced features

• One click installation Nacos The cluster contains 3 An example , And automatically complete the operation of self-organizing cluster and election through the initialization plug-in .

• Integrated by default Mysql As a data source . stay Nacos-server-2.0.4 The following environment variables are configured in the environment configuration of the component , You can switch to other external data sources .

name	necessary	describe
MYSQL_SERVICE_HOST	Y	Database address
MYSQL_SERVICE_PORT	Y	Database port
MYSQL_SERVICE_USER	Y	Database user name
MYSQL_SERVICE_PASSWORD	Y	Database password
MYSQL_SERVICE_DB_NAME	Y	Database name

• By default Nacos-server-2.0.4 Data persistence directory .

• Default configuration Nacos-server-2.0.4 The health examination mechanism , Ensure automatic offline in case of instance failure , Go online automatically after recovery .