Ondrej Mrekaj created KARAF-7610:
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Summary: JMX: rmiRegistryHost=0.0.0.0 not working
Key: KARAF-7610
URL: https://issues.apache.org/jira/browse/KARAF-7610
Project: Karaf
Issue Type: Bug
Affects Versions: 4.4.2, 4.3.8, 4.2.16
Environment: Debian 11.3
Docker version 20.10.17, build 100c701
Reporter: Ondrej Mrekaj
We noticed a problem with access to JMX in the case that karaf is running in a
docker container and uses a different network than the host. Last versions of
apache karaf where were working example below are 4.3.0, 4.2.11.
The given problem does not allow us to use JMX monitoring and simultaneously
separate individual docker networks from the host network.
Please see example below:
*working* version, docker network=host
{code:java}
docker run -it -d --name=test.4.4.2 --network=host -e
ORG_APACHE_KARAF_MANAGEMENT_RMIREGISTRYHOST='172.21.51.155' -e
ORG_APACHE_KARAF_MANAGEMENT_RMISERVERHOST='172.21.51.155' -e KARAF_DEBUG=true
-p 1099:1099 -p 44444:44444 apache/karaf:4.4.2{code}
{code:java}
docker exec -it test.4.4.2 /bin/bash
sed -i 's/rmiServerHost = 127.0.0.1/rmiServerHost =
${env:ORG_APACHE_KARAF_MANAGEMENT_RMISERVERHOST}/'
/opt/apache-karaf/etc/org.apache.karaf.management.cfg
sed -i 's/rmiRegistryHost = 127.0.0.1/rmiRegistryHost =
${env:ORG_APACHE_KARAF_MANAGEMENT_RMIREGISTRYHOST}/'
/opt/apache-karaf/etc/org.apache.karaf.management.cfg
sed -i 's/#karaf = karaf,_g_:admingroup/karaf = karaf,_g_:admingroup/'
/opt/apache-karaf/etc/users.properties
sed -i 's/#_g_\\:admingroup = /_g_\\:admingroup = /'
/opt/apache-karaf/etc/users.properties
echo 'java.rmi.server.hostname=172.21.51.155' >>
/opt/apache-karaf/etc/system.properties
exit
docker restart test.4.4.2{code}
_Connect to service:jmx:rmi:///jndi/rmi://172.21.51.153:1099/karaf-root was
{*}successful{*}._
*not-working* version, docker network=test
{code:java}
docker network create test
docker run -it -d --name=test.4.4.2 --network=test-e
ORG_APACHE_KARAF_MANAGEMENT_RMIREGISTRYHOST='0.0.0.0' -e
ORG_APACHE_KARAF_MANAGEMENT_RMISERVERHOST='0.0.0.0' -e KARAF_DEBUG=true -p
1099:1099 -p 44444:44444 apache/karaf:4.4.2
{code}
{code:java}
docker exec -it test.4.4.2 /bin/bash
sed -i 's/rmiServerHost = 127.0.0.1/rmiServerHost =
${env:ORG_APACHE_KARAF_MANAGEMENT_RMISERVERHOST}/'
/opt/apache-karaf/etc/org.apache.karaf.management.cfg
sed -i 's/rmiRegistryHost = 127.0.0.1/rmiRegistryHost =
${env:ORG_APACHE_KARAF_MANAGEMENT_RMIREGISTRYHOST}/'
/opt/apache-karaf/etc/org.apache.karaf.management.cfg
sed -i 's/#karaf = karaf,_g_:admingroup/karaf = karaf,_g_:admingroup/'
/opt/apache-karaf/etc/users.properties
sed -i 's/#_g_\\:admingroup = /_g_\\:admingroup = /'
/opt/apache-karaf/etc/users.properties
echo 'java.rmi.server.hostname=172.21.51.155' >>
/opt/apache-karaf/etc/system.properties
exit {code}
_Connect to service:jmx:rmi:///jndi/rmi://172.21.51.153:1099/karaf-root was
{*}unsuccessful{*}._
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