Commit Graph

2 Commits

Author SHA1 Message Date
Jiri Stransky
a43b23c45a Make managing hosts entries optional
Diskimage-builder currently writes cloud-init config file which adds a
host entry mapping the hostname and FQDN to 127.0.0.1 into every image
built. This is probably useful for some use cases but not for all, so we
now allow customizing the manage_etc_hosts value via
DIB_CLOUD_INIT_ETC_HOSTS variable and also not writing the config at all
if that variable is explicitly set to an empty string (currently the
default is 'localhost' but in the future the default will be empty
string).

Particular description of the problem this causes in TripleO follows:

We get hosts files like this:

    ::1     localhost       localhost.localdomain   localhost6      localhost6.localdomain6
    127.0.0.1       localhost       localhost.localdomain   localhost4      localhost4.localdomain4
    127.0.0.1       ov-rl5i5saoc6h-1-hj5tzsbrdv4c-controller-dy6nuyarqy5z.novalocal ov-rl5i5saoc6h-1-hj5tzsbrdv4c-controller-dy6nuyarqy5z

    # HEAT_HOSTS_START - Do not edit manually within this section!

    192.0.2.17 ov-rl5i5saoc6h-0-wfzcsrqo34p6-controller-m3hy26lhxavl ov-rl5i5saoc6h-0-wfzcsrqo34p6-controller-m3hy26lhxavl.novalocal
    192.0.2.15 ov-rl5i5saoc6h-1-hj5tzsbrdv4c-controller-dy6nuyarqy5z ov-rl5i5saoc6h-1-hj5tzsbrdv4c-controller-dy6nuyarqy5z.novalocal
    192.0.2.16 ov-rl5i5saoc6h-2-a6v7saxnivm5-controller-7jboskte34r7 ov-rl5i5saoc6h-2-a6v7saxnivm5-controller-7jboskte34r7.novalocal
    # HEAT_HOSTS_END

The duplicate hostname/FQDN entry for 127.0.0.1 and 192.0.2.15 confuses
Corosync, which then fails to start a cluster when using hostnames in
the config file instead of IPs.

Change-Id: Ia8582883f737548e2911d3f36a1943e5b236281b
Partial-Bug: #1447497
2015-05-11 14:40:43 +02:00
Gregory Haynes
c4bbb6f3bc Create docs site containing element READMEs
We currently do not have the ability to create a docs site which
outlines all the elements.

Change-Id: I77ccf61e0c4b1509b3e7ce9b8f15ea5ccfd50d9b
2015-02-10 11:45:35 -08:00