Commit Graph

7 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
Monty Taylor
05356cbc09 Handle non-cloud-init installs
Not all operating-system elements install cloud-init, but the base
element assumes its existence. Create the directory if it does not
exist.

Change-Id: I4bda8dc5d200825ea0c8163a4e5c44050a45083f
2015-03-25 13:28:12 -04:00
Ian Wienand
36b59c001c Standarise tracing for scripts
There is a wide variety of tracing options through the various shell
scripts.  Some use "set -eux", others explicity set xtrace and others
do nothing.  There is a "-x" option to bin/disk-image-create but it
doesn't flow down to the many scripts it calls.

This adds a global integer variable set by disk-image-create
DIB_DEBUG_TRACE.  All scripts have a stanza added to detect this and
turn on tracing.  Any other tracing methods are rolled into this.  So
the standard header is

---
if [ "${DIB_DEBUG_TRACE:-0}" -gt 0 ]; then
    set -x
fi
set -eu
set -o pipefail
---

Multiple -x options can be specified to dib-create-image, which
increases the value of DIB_DEBUG_TRACE.  If script authors feel their
script should only trace at higher levels, they should modify the
"-gt" value.  If they feel it should trace by default, they can modify
the default value also.

Changes to pachset 16 : scripts which currently trace themselves by
default have retained this behaviour with DIB_DEBUG_TRACE defaulting
to "1".  This was done by running [1] on patch set 15.  See the thread
beginning at [2]

dib-lint is also updated to look for the variable being matched.

[1] https://gist.github.com/ianw/71bbda9e6acc74ccd0fd
[2] http://lists.openstack.org/pipermail/openstack-dev/2014-November/051575.html

Change-Id: I6c5a962260741dcf6f89da9a33b96372a719b7b0
2015-02-12 10:41:32 +11:00
Giulio Fidente
cde4cef215 Switch manage_etc_hosts from True to localhost
When set to true this cloud-init setting overwrites the /etc/hosts
file at reboot, breaking stuff in TripleO where controllers rely
on resolving each other by name. We still want cloud-init to add in
there a mapping for the local fqdn, so we switched to 'localhost' [1]

1. http://bazaar.launchpad.net/~cloud-init-dev/cloud-init/trunk/view/head:/doc/examples/cloud-config.txt#L470

Change-Id: I85468dece3b67f39841aa826f9b7ca4bf113027a
Closes-Bug: 1411594
2015-01-21 13:21:53 +01:00
Ben Nemec
16be6d7ce0 set -u and -o pipefail everywhere
As with the previous similar changes, this is intended to catch
problems as they happen instead of ignoring them and continuing on
to potentially fail later.  Setting this on all existing scripts
will allow us to enforce use via Jenkins.

Change-Id: Iad2d490c86dceab148ea9ab08f457c49a5d5352e
2014-05-06 15:51:07 -05:00
Robert Collins
2b5557ea30 Don't use sudo in base.
Install.d hooks are already root, we don't need plain sudo there.

Change-Id: I69747049b2f5f649eb503a24487bbb3a4151ae21
2013-02-27 15:51:10 +13:00
Monty Taylor
1eff4a436e Rename flavour to element.
Flavour is overloaded in openstack due to it being used by nova. Element
seems to have the same feeling of combinability without using a term already
in active use in the openstack community.

Change-Id: Ia4c028d4062a8f69c66665821c94dd4bcdf06031
2012-12-05 14:04:58 -08:00