[jira] [Created] (HDDS-839) Wait for other services in the started script of hadoop-runner base docker image

["Elek, Marton (JIRA)" <ji...@apache.org>]

Elek, Marton created HDDS-839:
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             Summary: Wait for other services in the started script of hadoop-runner base docker image
                 Key: HDDS-839
                 URL: https://issues.apache.org/jira/browse/HDDS-839
             Project: Hadoop Distributed Data Store
          Issue Type: Sub-task
            Reporter: Elek, Marton
            Assignee: Elek, Marton


As described in the parent issue, we need a simple method to handle service dependencies in kubernetes clusters (usually as a workaround when some clients can't re-try with renewed dns information).

But it also could be useful to minimize the wait time in the docker-compose clusters.

The easiest implementation is modifying the started script of the apache/hadoop-runner base image and add a bash loop which checks the availability of the TCP port (with netcat). 



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