Java Spring - Spring Cloud Config Client
I. Giới thiệu
Java Srping cung cấp tính năng cho phép quản lý file config tập trung thông qua các hệ thống quản lý version như git.
Việc deploy và thay đổi config sẽ dễ dàng hơn khi cloud config hỗ trợ lấy config theo môi trường.
Spring Cloud Config Clientsẽ gọi api từ Cloud Config Server để lấy config theo môi trường.
II. Khởi tạo project Cloud Config Client
1. pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.3</version>
<relativePath /> <!-- lookup parent from repository -->
</parent>
<groupId>com.cloudconfig</groupId>
<artifactId>cloud-config-client</artifactId>
<version>1.0</version>
<name>cloud-config-client</name>
<description>cloud config client</description>
<properties>
<java.version>1.8</java.version>
<maven-jar-plugin.version>3.1.1</maven-jar-plugin.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<spring-cloud.version>2020.0.3</spring-cloud.version>
</properties>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bootstrap</artifactId>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
2. bootstrap.yml
spring:
application:
name: cloud-config-client
profiles:
active: dev
cloud:
config:
enabled: true
uri: http://localhost:8888 # đổi sang config server đang chạy
username: root
password: pass@2021
request-read-timeout: 10000
spring.cloud.config.enabled: enable cloud config server
spring.cloud.config.uri: url đến Cloud Config Server đang có
spring.cloud.config.username: username đã config trong Cloud Config Server
spring.cloud.config.password: password đã config trong Cloud Config Server đang có
3. {application}-{profile}.yml
Bước này ta sẽ đẩy file config lên git đã config trong Cloud Config Server spring.cloud.server.git.uri
Ví dụ ta đẩy 2 file cloud-config-client-dev.yml
server:
port: 8901 # tự tùy chỉnh
env: dev
logging:
file:
path: /var/log/${spring.application.name}
level:
org.springframework: info
root: info
Và file cloud-config-client-sit.yml
server:
port: 8901 # tự tùy chỉnh
env: sit
logging:
file:
path: /var/log/${spring.application.name}
level:
org.springframework: info
root: info
2 file khác nhau phần env
3. logback-spring.xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<springProperty scope="context" name="springAppName"
source="spring.application.name" />
<springProperty scope="context" name="LOGS"
source="logging.file.path"></springProperty>
<appender name="Console"
class="ch.qos.logback.core.ConsoleAppender">
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable
</Pattern>
</layout>
</appender>
<appender name="RollingFile"
class="ch.qos.logback.core.rolling.RollingFileAppender">
<file>${LOGS}/${springAppName}-logger.log</file>
<encoder
class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<Pattern>%d %p %C{1.} [%t] %m%n</Pattern>
</encoder>
<rollingPolicy
class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy">
<!-- rollover daily and when the file reaches 10 MegaBytes -->
<fileNamePattern>${LOGS}/archived/${springAppName}-logger-%d{yyyy-MM-dd}.%i.log
</fileNamePattern>
<timeBasedFileNamingAndTriggeringPolicy
class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP">
<maxFileSize>10MB</maxFileSize>
</timeBasedFileNamingAndTriggeringPolicy>
</rollingPolicy>
</appender>
<!-- LOG everything at INFO level -->
<root level="info">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</root>
<!-- LOG at TRACE level -->
<logger name="com.cloudconfigclient" level="trace" additivity="false">
<appender-ref ref="RollingFile" />
<appender-ref ref="Console" />
</logger>
</configuration>
4. ConfigClient Boot
package com.cloudconfigclient;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ConfigClient {
public static void main(String[] arguments) {
SpringApplication.run(ConfigClient.class, arguments);
}
}
5. Tiến hành build chạy project (chạy cả cloud config server)
Chú ý tham số cấu hình spring.profiles.active trong file bootstrap (hoặc truyền tham số profile active khi chạy app spring) chính là profile cần lấy trên cloud config theo mẫu
{application}-{profile} trong ví dụ này là cloud-config-client-dev và cloud-config-client-sit
Trong đó:
profile: active profile
Nhận xét
Đăng nhận xét