我正在为一组开发人员提供完整的 docker 环境，主要包括 Wildfly、MySQL 和 Apache。
我根据生产预先配置了所有图像，并且开发人员现在要求提供更多选项:能够使用 intellij 调试正在运行的 Wildfly 从站。
设置:
当人们使用不同的操作系统时，我设置了一个虚拟机来托管 docker。
我转发必须可以从托管 VM 的本地计算机访问的端口。这行得通，他们可以访问数据库、wildfly 管理等。这里是 VM 配置和端口的屏幕截图:
debian machine hosting docker
带有调试功能的主机的 Dockerfile(不起作用):
FROM ourerpo/wildfly:base
ARG VERSION=8.2.0
WORKDIR $JBOSS_USER_HOME
ENV JAVA_OPTS='-Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -agentlib:jdwp=transport=dt_socket,address=0.0.0.0:8787,server=y,suspend=n'
ADD srv srv/
RUN mkdir -p $JBOSS_CONF \
&& mv srv/wildfly.conf.slave $JBOSS_CONF/wildfly.conf \
&& chown $JBOSS_USER:$JBOSS_USER $JBOSS_CONF \
&& chmod 644 $JBOSS_CONF \
&& chown $JBOSS_USER:$JBOSS_USER srv/ -R \
&& chmod 744 srv/*.sh
USER $JBOSS_USER
# Move in template host configuration and insert slave key
RUN mv srv/host-slave-${VERSION}.tmpl $JBOSS_DOMAIN/configuration/host-slave.xml \
&& cat $JBOSS_DOMAIN/configuration/host-slave.xml | sed -e"s@<secret value=\".*\"/>@<secret value=\"somevalue\"/>@" >$JBOSS_DOMAIN/configuration/host-slave.xml.new \
&& mv $JBOSS_DOMAIN/configuration/host-slave.xml.new $JBOSS_DOMAIN/configuration/host-slave.xml
ENTRYPOINT exec /app/wildfly/bin/domain.sh --domain-config=domain.xml --host-config=host-slave.xml -Djboss.domain.master.address=stsdomain -Djboss.bind.address=0.0.0.0作为容器生成的图像记录以下内容:
=========================================================================
JBoss Bootstrap Environment
JBOSS_HOME: /app/wildfly
JAVA: /app/java/bin/java
JAVA_OPTS: -Xms64m -Xmx512m -XX:MaxPermSize=256m -Djava.net.preferIPv4Stack=true -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -agentlib:jdwp=transport=dt_socket,address=0.0.0.0:8787,server=y,suspend=n
=========================================================================
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
Listening for transport dt_socket at address: 8787
14:58:27,755 INFO [org.jboss.modules] (main) JBoss Modules version 1.3.3.Final
14:58:27,875 INFO [org.jboss.as.process.Host Controller.status] (main) JBAS012017: Starting process 'Host Controller'
[Host Controller] Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
[Host Controller] ERROR: transport error 202: bind failed: Address already in use
[Host Controller] ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510)
[Host Controller] JDWP exit error AGENT_ERROR_TRANSPORT_INIT(197): No transports initialized [debugInit.c:750]
[Host Controller] FATAL ERROR in native method: JDWP No transports initialized, jvmtiError=AGENT_ERROR_TRANSPORT_INIT(197)
14:58:28,000 INFO [org.jboss.as.process.Host Controller.status] (reaper for Host Controller) JBAS012010: Process 'Host Controller' finished with an exit status of 134有两点需要注意:
-agentlib:jdwp=transport=dt_socket,address=0.0.0.0:8787,server=y,suspend=n
ERROR: transport error 202: bind failed: Address already in use
所以端口应该正在使用中，但使用 netstat 我看不到它:
me@machine:~/mapped$ netstat -tulpn
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN -
tcp6 0 0 :::9999 :::* LISTEN -
tcp6 0 0 :::8050 :::* LISTEN -
tcp6 0 0 :::22 :::* LISTEN -
tcp6 0 0 :::13080 :::* LISTEN -
tcp6 0 0 :::15672 :::* LISTEN -
tcp6 0 0 :::9990 :::* LISTEN -
tcp6 0 0 :::5671 :::* LISTEN -
tcp6 0 0 :::5672 :::* LISTEN -
tcp6 0 0 :::2376 :::* LISTEN -
tcp6 0 0 :::3306 :::* LISTEN -
udp 0 0 0.0.0.0:68 0.0.0.0:* -
udp 0 0 172.17.0.1:123 0.0.0.0:* -
udp 0 0 172.10.12.1:123 0.0.0.0:* -
udp 0 0 10.0.2.15:123 0.0.0.0:* -
udp 0 0 127.0.0.1:123 0.0.0.0:* -
udp 0 0 0.0.0.0:123 0.0.0.0:* -
udp6 0 0 fe80::1053:e1ff:fed:123 :::* -
udp6 0 0 fe80::2c88:1cff:fe9:123 :::* -
udp6 0 0 fe80::42:3dff:fe28::123 :::* -
udp6 0 0 fe80::58c3:fdff:fe3:123 :::* -
udp6 0 0 fe80::d435:6fff:fee:123 :::* -
udp6 0 0 fe80::8091:1aff:fe7:123 :::* -
udp6 0 0 fe80::2459:65ff:fe0:123 :::* -
udp6 0 0 fe80::94b2:9fff:fe6:123 :::* -
udp6 0 0 fe80::42:19ff:fe2f::123 :::* -
udp6 0 0 fe80::a00:27ff:fef4:123 :::* -
udp6 0 0 ::1:123 :::* -
udp6 0 0 :::123 :::* -Docker 检查容器:
"NetworkSettings": {
"Bridge": "",
"SandboxID": "9ac8dad9fd93a0fb9bdff4c068b8e925aa9ff941df4f81033ce910a093f36a78",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {
"11080/tcp": null,
"8787/tcp": null,
"8899/tcp": null我尝试过的事情:
更改
-Djava.awt.headless=t rue -agentlib:jdwp=transport=dt_socket,address=0.0.0.0:8787致-Djava.awt.headless=t rue -agentlib:jdwp=transport=dt_socket,address=8787将端口从 8787 更改为其他端口。
暴露端口，不暴露端口。
服务器=y，服务器=n
我在跑:
Docker 版本 1.11.2，
野蝇 8.2
Docker 网络检查:
me@machine:~/mapped$ docker network inspect compose_stsdevnet
[
{
"Name": "compose_thenet",
"Id": "9a17953da5f9698f3f27cf18d9d41751d049774439a53629fdcd69a996e370db",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": null,
"Config": [
{
"Subnet": "172.10.12.0/24"
}
]
},
"Internal": false,
"Containers": {
<other containers here>
<failing container> "9094b4136707e643df69fdff7dc04432a8d9c36275c3ae6dc6f2286393d3753a": {
"Name": "stupefied_stonebraker",
"EndpointID": "0c425d16334ecf3127233156d9770dc286bf72f57d778efe01fafb4696a17012",
"MacAddress": "02:42:ac:0a:0c:03",
"IPv4Address": "172.10.12.3/24",
"IPv6Address": ""
},
<the domain> "e4dd4f67f33df6643c691aa74a71dc4a8d69738004dfbe09b20c3061bd3bc614": {
"Name": "stsdomain",
"EndpointID": "0c89e70edbddb34f7be6b180a289480e1ac57ef482a651f0addce167eaa1110a",
"MacAddress": "02:42:ac:0a:0c:18",
"IPv4Address": "172.10.12.24/24",
"IPv6Address": ""
}
},
"Options": {},
"Labels": {}
}任何想法或建议将不胜感激。提前致谢。
最佳答案
通过将值放入 JAVA_OPTS环境变量它将用于进程 Controller 和主机 Controller 。您看到错误是因为当进程 Controller 尝试绑定(bind)到主机 Controller 时，主机 Controller 已经有一个调试代理在监听端口 8787。
我的猜测是你想在服务器上实际调试你的应用程序。如果您的 host-slave.xml 是这种情况您需要将以下内容添加到特定服务器。
<jvm name="default">
<jvm-options>
<option value="-agentlib:jdwp=transport=dt_socket,address=8787,server=y,suspend=n"/>
</jvm-options>
</jvm>
例子:
<servers>
<server name="server-one" group="main-server-group">
<jvm name="default">
<jvm-options>
<option value="-agentlib:jdwp=transport=dt_socket,address=8787,server=y,suspend=n"/>
</jvm-options>
</jvm>
</server>
<server name="server-two" group="other-server-group">
<!--
~ server-two avoids port conflicts by incrementing the ports in
~ the default socket-group declared in the server-group
-->
<socket-bindings port-offset="150"/>
</server>
</servers>
关于debugging - 在 Docker 中启用 Wildfly 域模式下的调试 - 端口已在使用中，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/41508313/