方法一：自定义类并继承：ch.qos.logback.classic.pattern.ClassicConverter

1.自定义类LogIpConfig

import ch.qos.logback.classic.pattern.ClassicConverter;
import ch.qos.logback.classic.spi.ILoggingEvent;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * @author huang
 * @version 1.0
 * @description:
 * @date 2022-10-08 16:12
 */
public class LogIpConfig extends ClassicConverter {

    private static final Logger logger = LoggerFactory.getLogger(LogIpConfig .class);

    private static String webIP;
    static {
        try {
            webIP = InetAddress.getLocalHost().getHostAddress();
        } catch (UnknownHostException e) {
            logger.error("获取日志Ip异常", e);
            webIP = null;
        }
    }

    @Override
    public String convert(ILoggingEvent event) {
        return webIP;
    }
}

2.在logback.xml文件中添加如下配置

<conversionRule conversionWord="ipAddress" converterClass="com.***.config.LogIpConfig" />

3.获取主机地址IP值：%ipAddress 值

"ipAddress":%ipAddress

方法二：自定义类并继承：ch.qos.logback.core.PropertyDefinerBase类

1.自定义类LogIpConfig

import ch.qos.logback.core.PropertyDefinerBase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.net.InetAddress;
import java.net.UnknownHostException;

/**
 * @author huang
 * @version 1.0
 * @description:
 * @date 2022-10-09 15:16
 */
public class LogIpPropertyConfig extends PropertyDefinerBase {

    private static final Logger logger = LoggerFactory.getLogger(LogIpPropertyConfig .class);

    private static String ip;

    static {
        try {
            ip = InetAddress.getLocalHost().getHostAddress();
        } catch (UnknownHostException e) {
            logger.error("获取日志IP地址异常",e);
            ip = null;
        }
    }
    @Override
    public String getPropertyValue() {
        return ip;
    }
}

2.在logback.xml文件中添加如下配置

<define name="ip" class="com.***.config.LogIpPropertyConfig"></define>

3.获取主机地址IP值：${ip}值

将IP地址拼接到日志名称上：
<fileNamePattern>${log_path}/${ip}-%d{yyyy-MM-dd}.%i.log</fileNamePattern>