Arquillian Cube and ArquillianResource url - jboss-arquillian

Question

I have been trying to get the url for my tomcat server(running in a docker container) used in my Junit test and not just localhost. The reason this is important is my test runs fine locally, but when run on our jenkins node which is also run in Docker, localhost does not work.
I have configued the node to use Docker on Docker configs. I need the url to use the ip of the parent docker machine. The odd thing is the jmx url seems to work just fine to deploy the test war, however it is the unit test url itself that has an issue. I rewrote the test with the ip hard coded and this worked fine, but is really not an optimal solution in the event devs here want to run the test locally.
I also tried using #CubeIp and #DockerUrl or #HostIp, but they either returned just localhost or null, as it says it cannot find the container "tomcat"
Any ideas?
Here is my arquillian.xml
<extension qualifier="cube">
<property name="connectionMode">STARTORCONNECTANDLEAVE</property>
</extension>
<extension qualifier="docker">
<property name="serverVersion">1.14</property>
<property name="serverUri">unix:///var/run/docker.sock</property>
<!--<property name="serverUri">localhost:2375</property>-->
<property name="dockerInsideDockerResolution">false</property>
<property name="definitionFormat">CUBE</property>
<property name="dockerContainersFile">docker-compose.yml</property>
<property name="dockerRegistry">https://internalnexus.com:5000/</property>
<property name="username">user</property>
<property name="password">pass</property>
<property name="email">email</property>
</extension>
<container qualifier="tomcat" default="true">
<configuration>
<property name="host">10.0.20.1</property>
<property name="httpPort">8080</property>
<property name="user">user</property>
<property name="pass">pass</property>
</configuration>
</container>
And here is my docker compose file
`
tomcat:
image: internalnexus.com:5000/perf-tomcat:latest
exposedPorts: [8080/tcp,8089/tcp]
alwaysPull: false
await:
strategy: polling
env: [TOMCAT_PASS=mypass, JAVA_OPTS=-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.local.only=false -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.port=8089 -Dcom.sun.management.jmxremote.rmi.port=8089 -Dcom.sun.management.jmxremote.ssl=false -Dspring.config.location=/usr/local/tomcat/conf/application.properties]
portBindings: [8089/tcp, 8080/tcp]
links:
- database:database
database:
image: internalnexus.com:5000/perfstats-sqlserver:latest
exposedPorts: [1433/tcp]
env: [SA_PASSWORD=pass, ACCEPT_EULA=Y]
await:
strategy: log
match: 'ms sql server is done'
stdOut: true
stdErr: true
timeout: 30
portBindings: [1433/tcp]
`

Answer 1

I have one question and it is why you need parent docker host ip?
What I see is that parent docker host ip is the docker host ip where Jenkins node is using. This IP is the one required by external callers to access to Jenkins. Then inside that docker instance you are running another docker host or you are reusing the docker host where Jenkins is running?