Flávio Ferreira created KARAF-3609:
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Summary: Kubernetes/Cloud Service Discovery isn't working in
Immutable applications
Key: KARAF-3609
URL: https://issues.apache.org/jira/browse/KARAF-3609
Project: Karaf
Issue Type: Bug
Environment: Karaf Cellar
Reporter: Flávio Ferreira
I’m using Karaf Cellar using Hazelcast with network TCP-IP enabled instead of
Multicast. I’m trying to run immutable applications (running inside Docker
containers).
To discover Hazelcast Instances in the cluster I’m using cellar-kubernetes
feature. However, I tried to use cellar-cloud and the problem is the same.
I belive that, as my applications are immutable and the karaf configuration is
never updated, the update in Managed Service Factories was never called. Thus,
the DiscoveryTask can’t find the Karaf Cellar instances in the cluster since
there are no Service Discovery Implementations registered.
In short, the update in this
[class|https://github.com/apache/karaf-cellar/blob/master/cloud/src/main/java/org/apache/karaf/cellar/cloud/BlobStoreDiscoveryServiceFactory.java]
is never called. Therefore, this never happens:
bq. newRegistration =
bundleContext.registerService(DiscoveryService.class.getName(), service,
(Dictionary) serviceProperties);
I have an exemple to test it, in my github, under this repository:
[karaf-cellar-kubernetes-example|https://github.com/FlavioF/karaf-cellar-kubernetes-example]
I can’t understand if there is anything that I am missing or if this is an
issue in Service Discovery registry process.
Is there anyone I can chat about this in IRC or any other real time chat?
[~ppires]
[~albertocsm]
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