[keycloak-user] Query on high availability- HA of Keycloak docker

[vijay]

Hi All,

For development my setup has two keycloak containers on single VM along
with postgres sql.  I am following the document mentioned
https://github.com/jboss-dockerfiles/keycloak/tree/master/server .
I am starting the keycloak and keycloak2 docker containers with


docker run -p 8080:8080 --name keycloak --link postgres:postgres -e
JGROUPS_DISCOVERY_PROTOCOL=JDBC_PING -e POSTGRES_DATABASE=keycloak -e
POSTGRES_USER=keycloak -e POSTGRES_PASSWORD=password -v
$HOME/docker/volumes/keycloak:/tmp -d jboss/keycloak

docker run -p 8081:8080 --name keycloak2 --link postgres:postgres -e
JGROUPS_DISCOVERY_PROTOCOL=JDBC_PING -e POSTGRES_DATABASE=keycloak -e
POSTGRES_USER=keycloak -e POSTGRES_PASSWORD=password -v
$HOME/docker/volumes/keycloak2:/tmp -d jboss/keycloak

In the server logs of both keycloak containers I see below error logs -

19:02:01,596 WARN  [org.jboss.as.dependency.private] (MSC service thread
1-1) WFLYSRV0018: Deployment "deployment.keycloak-server.war" is using a
private module ("org.kie") which may be changed or removed in future
versions without notice.
19:02:02,181 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool
-- 60) MSC000001: Failed to start service
org.wildfly.clustering.jgroups.channel.ee:
org.jboss.msc.service.StartException in service
org.wildfly.clustering.jgroups.channel.ee: java.lang.IllegalStateException:
java.lang.IllegalArgumentException: Either the 4 configuration properties
starting with 'connection_' or the datasource_jndi_name must be set
        at
org.wildfly.clustering.service.FunctionalService.start(FunctionalService.java:70)
        at
org.wildfly.clustering.service.AsyncServiceConfigurator$AsyncService.lambda$start$0(AsyncServiceConfigurator.java:117)
        at
org.jboss.threads.ContextClassLoaderSavingRunnable.run(ContextClassLoaderSavingRunnable.java:35)
        at
org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1982)
        at
org.jboss.threads.EnhancedQueueExecutor$ThreadBody.doRunTask(EnhancedQueueExecutor.java:1486)
        at
org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1377)
        at java.lang.Thread.run(Thread.java:748)
        at org.jboss.threads.JBossThread.run(JBossThread.java:485)
Caused by: java.lang.IllegalStateException:
java.lang.IllegalArgumentException: Either the 4 configuration properties
starting with 'connection_' or the datasource_jndi_name must be set
        at
org.jboss.as.clustering.jgroups.subsystem.ChannelServiceConfigurator.get(ChannelServiceConfigurator.java:116)
        at
org.jboss.as.clustering.jgroups.subsystem.ChannelServiceConfigurator.get(ChannelServiceConfigurator.java:58)
        at
org.wildfly.clustering.service.FunctionalService.start(FunctionalService.java:67)
        ... 7 more
Caused by: java.lang.IllegalArgumentException: Either the 4 configuration
properties starting with 'connection_' or the datasource_jndi_name must be
set
        at
org.jgroups.protocols.JDBC_PING.verifyConfigurationParameters(JDBC_PING.java:421)
        at org.jgroups.protocols.JDBC_PING.init(JDBC_PING.java:102)
        at
org.jgroups.stack.ProtocolStack.initProtocolStack(ProtocolStack.java:847)
        at org.jgroups.stack.ProtocolStack.init(ProtocolStack.java:837)
        at org.jgroups.JChannel.<init>(JChannel.java:200)
        at
org.jboss.as.clustering.jgroups.JChannelFactory.createChannel(JChannelFactory.java:116)
        at
org.jboss.as.clustering.jgroups.subsystem.ChannelServiceConfigurator.get(ChannelServiceConfigurator.java:96)
        ... 9 more


Any hint will be helpful.

Thanks,
Vijay