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https://issues.apache.org/jira/browse/WHIRR-634?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Bayer resolved WHIRR-634.
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Resolution: Fixed
Committed.
> Update private IP host file entry when required by AUTO_HOSTNAME_SUFFIX
> -----------------------------------------------------------------------
>
> Key: WHIRR-634
> URL: https://issues.apache.org/jira/browse/WHIRR-634
> Project: Whirr
> Issue Type: Improvement
> Components: core
> Affects Versions: 0.7.1
> Reporter: Graham Gear
> Assignee: Graham Gear
> Priority: Minor
> Fix For: 0.9.0
>
> Attachments: WHIRR-634.patch, WHIRR-634.patch
>
>
> Currently, configure_hostnames.sh ensures that the public IP host file entry
> is written if required by the AUTO_HOSTNAME_SUFFIX variable. It does not
> however touch the internal IP host file entry, which is likely to retain an
> entry for the initial (and generally unresolvable) hostname. It is suggested
> that configure_hostname.sh also update the private IP host file entry, with a
> 'private.' prefix to ensure there is no ambiguity in reverse lookups, since
> the order of the host file entries cannot be relied on (eg the order varies
> host to host, IP to IP on Rackspace Cloud). This keeps the public/private
> host file entries in sync and allows them to be used interchangably depending
> on the visibility requirements of the node.
> Eg, on Rackspace cloud, if provisioning a node with a whirr.cluster-name
> 'cdh-cluster' on Rackspace Cloud UK, the pre configure_hostnames.sh on a
> particular node looks as so:
> -bash-4.1$ cat /etc/hosts
> 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
> ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
> 10.177.7.48 cdh-cluster-74f
> 31.222.177.80 cdh-cluster-74f
> after current trunk configure_hostnames.sh:
> -bash-4.1$ cat /etc/hosts
> 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
> ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
> 10.177.7.48 cdh-cluster-74f
> 31.222.177.80 31-222-177-80.static.cloud-ips.co.uk
> and after the suggested updates in this JIRA it would look like:
> -bash-4.1$ cat /etc/hosts
> 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
> ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6
> 10.177.7.48 private.31-222-177-80.static.cloud-ips.co.uk
> 31.222.177.80 31-222-177-80.static.cloud-ips.co.uk
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