使用maven和docker-maven-plugin我配置了apache kafka zookeeper容器:
<image>
<name>wurstmeister/zookeeper:${zookeeper.version}</name>
<alias>zookeeper</alias>
<run>
<ports>
<port>${zookeeper.port}:2181</port>
</ports>
</run>
</image>
<image>
<name>wurstmeister/kafka:${kafka.version}</name>
<alias>kafka</alias>
<run>
<ports>
<port>9093:9092</port>
</ports>
<links>
<link>zookeeper:zookeeper</link>
</links>
<env>
<KAFKA_ADVERTISED_HOST_NAME>192.168.1.202</KAFKA_ADVERTISED_HOST_NAME>
<KAFKA_ADVERTISED_PORT>9093</KAFKA_ADVERTISED_PORT>
<KAFKA_ZOOKEEPER_CONNECT>zookeeper:${zookeeper.port}</KAFKA_ZOOKEEPER_CONNECT>
</env>
</run>
</image>
您可以看到,为了使其正常工作,我必须提供主机系统的实际IP地址:
<KAFKA_ADVERTISED_HOST_NAME>192.168.1.202</KAFKA_ADVERTISED_HOST_NAME>
在Maven或Docker-Maven-Plugin中有任何方法可以自动获取此IP地址,而无需进行硬码?
更新
我找到了允许我检索主机IP地址的插件:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<id>get-local-ip</id>
<goals>
<goal>local-ip</goal>
</goals>
<configuration>
<localIpProperty>local.ip</localIpProperty>
</configuration>
</execution>
</executions>
</plugin>
,为了使用它,我需要在其余的maven命令之前执行build-helper:local-ip
目标:
mvn build-helper:local-ip docker:start
如何用某个阶段/目标绑定此插件以在某些早期初始化阶段自动调用它,而无需每次手动调用build-helper:local-ip
?
来自build-helper-maven-plugin的文档:
默认绑定到生命周期阶段:过程测试类别
您可以更改它以绑定到您想要的任何阶段,例如
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<executions>
<execution>
<goals>
<goal>local-ip</goal>
</goals>
<phase>initialize</phase>
</execution>
</executions>
</plugin>
build-helper-maven-plugin的local-ip
仅返回127.0.0.1
。
在我的用例中,网络地址是必要的 - 诸如192.168.17.112
。
<plugin>
<groupId>org.codehaus.groovy.maven</groupId>
<artifactId>gmaven-plugin</artifactId>
<executions>
<execution>
<phase>generate-resources</phase>
<goals>
<goal>execute</goal>
</goals>
<configuration>
<source>
java.net.DatagramSocket socket = new java.net.DatagramSocket()
socket.connect(java.net.InetAddress.getByName('google.com'), 80)
project.properties['host.address'] = socket.getLocalAddress().getHostAddress()
</source>
</configuration>
</execution>
</executions>
</plugin>
然后,属性host.address
包含所需的网络IP。
(不要向我投票支持我的答案:使用Java获取当前计算机的IP地址)