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From "Greg Hill (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AMBARI-12915) Make agent hostname configurable
Date Fri, 28 Aug 2015 14:43:46 GMT

    [ https://issues.apache.org/jira/browse/AMBARI-12915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14719282#comment-14719282
] 

Greg Hill commented on AMBARI-12915:
------------------------------------

Yeah, I was thinking it wouldn't be there by default.  You'd have to add it.  Precedence would
be:

1. Config 'hostname', if it exists
2. Run config 'hostname_script', if it exists
3. Get system hostname

I agree that this wouldn't be ideal for everybody, but we can inject configs per node and
this would make it simpler for us.  I was planning on submitting a patch, but it'll probably
be next week before I can get to it.

> Make agent hostname configurable
> --------------------------------
>
>                 Key: AMBARI-12915
>                 URL: https://issues.apache.org/jira/browse/AMBARI-12915
>             Project: Ambari
>          Issue Type: Improvement
>          Components: ambari-agent
>    Affects Versions: 2.1.0
>            Reporter: Greg Hill
>            Assignee: Greg Hill
>            Priority: Minor
>
> Currently the agent can either get the hostname from the local system, or you can inject
a script to tell it what hostname to use using the 'hostname_script' config value.  I would
like to add a 'hostname' config value to the agent section of the agent config so we can just
tell the agent what hostname to use.
> The scenario this comes up in is that our Ambari setup uses a local DNS domain for internal
traffic, but the Ambari API has a public FQDN that we use for the API.  It would be much cleaner
for us to just specify the hostname in the config rather than jumping through hoops to generate
a script to use to derive it.
> https://github.com/apache/ambari/blob/087d9003ecf6af33890e4f48743d7237a30d6438/ambari-agent/src/main/python/ambari_agent/hostname.py#L40



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