[GitHub] [openwhisk-deploy-kube] nikolavukovic commented on issue #577: Kafka, Controller and Invoker pods stuck in Init phase, CouchDB not initialized properly

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nikolavukovic commented on issue #577: Kafka, Controller and Invoker pods stuck in Init phase, CouchDB not initialized properly
URL: https://github.com/apache/openwhisk-deploy-kube/issues/577#issuecomment-578306002
 
 
   Hi David, many thanks for replying!
   Indeed, zookeeper is not reachable from the kafka pod container. I entered the container and tried to executed the command. This is what I get:
    ```
   result=1; until [ $result -eq 0 ]; do OK=$(echo ruok | nc -w 1 owdev-zookeeper-0.owdev-zookeeper.openwhisk.svc.kubernetes.default.svc.cluster.local 2181); if [ "$OK" == "imok" ]; then result=0; echo "zookeeper returned imok!"; else echo waiting for zookeeper to be ready; sleep 1; fi; done; echo "Success: zookeeper is up"
   nc: bad address 'owdev-zookeeper-0.owdev-zookeeper.openwhisk.svc.kubernetes.default.svc.cluster.local'
   waiting for zookeeper to be ready
   nc: bad address 'owdev-zookeeper-0.owdev-zookeeper.openwhisk.svc.kubernetes.default.svc.cluster.local'
   ```
   Another problem I had before this is that nginx pod would enter into CrashLoopBackOff state because it had a networking problem. In mycluster.yaml I had to put
   ```
   k8s:
     domain: kubernetes.default.svc.cluster.local
   ```
   instead of 
   ```
   k8s:
     domain: cluster.local
   ```
   I was following another issue started here before related to networking and so I changed domain value without really being aware of the consequences. Can you explain what could be done in this case and why cluster.local was not working?
   Basically, this is what I get when using nslookup from nginx pod:
   ```
   root@owdev-nginx-8495fdcb9c-88zhz:/# nslookup cluster.local
   Server:         10.96.0.10
   Address:        10.96.0.10#53
   
   *** Can't find cluster.local: No answer
   
   root@owdev-nginx-8495fdcb9c-88zhz:/# nslookup kubernetes.default.svc.cluster.local
   Server:         10.96.0.10
   Address:        10.96.0.10#53
   
   Name:   kubernetes.default.svc.cluster.local
   Address: 10.96.0.1
   ```

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