docker容器提示The character [_] is never valid in a domain name

[qlanto224]

Which Component
Sentinel 1.8.0

Describe the bug
同样的docker-compose配置，本地微服务可以在sentinel中识别到，但是生产（虚拟机内的docker容器）提示：

2024-11-25 15:29:31.862  INFO 1 --- [io-8858-exec-10] o.apache.coyote.http11.Http11Processor   : The host [docker-sentinel-1.docker_by_net] is not valid
 Note: further occurrences of request parsing errors will be logged at DEBUG level.

java.lang.IllegalArgumentException: The character [_] is never valid in a domain name.
	at org.apache.tomcat.util.http.parser.HttpParser$DomainParseState.next(HttpParser.java:946) ~[tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.tomcat.util.http.parser.HttpParser.readHostDomainName(HttpParser.java:842) ~[tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.tomcat.util.http.parser.Host.parse(Host.java:66) ~[tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.tomcat.util.http.parser.Host.parse(Host.java:40) ~[tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.coyote.AbstractProcessor.parseHost(AbstractProcessor.java:286) ~[tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.coyote.http11.Http11Processor.prepareRequest(Http11Processor.java:1203) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:776) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_202]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_202]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.34.jar!/:8.5.34]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_202]

[yuluo-yx]

看样子和 sca 没啥关系？

[qlanto224]

看样子和 sca 没啥关系？

生产使用sentinel的过程中的问题。物理机->虚拟机->容器
sca中配置spring.cloud.sentinel.transport.dashboard虚拟机的ip，可以正确连接，当改成sentinel的容器ip时会出现这个错误。

[qlanto224]

看样子和 sca 没啥关系？

生产使用sentinel的过程中的问题。物理机->虚拟机->容器 sca中配置spring.cloud.sentinel.transport.dashboard虚拟机的ip，可以正确连接，当改成sentinel的容器ip时会出现这个错误。

看样子是sentinel是去解析本地网卡时，去解析hosts了，而docker的网卡配置名称是有下划线的，导致解析异常。例如：

version: '3'
services:  
  sentinel:
    image: sentinel-dashboard:1.8.0
    hostname: "sentinel"
    environment:
      - TZ=Asia/Shanghai
    ports:
      - 8858:8858
    restart: on-failure
    networks:
      by_net:
        ipv4_address: 132.30.0.58

networks:
  by_net:
    driver: bridge
    ipam:
      config:
        - subnet: 132.30.0.0/16