openstack
/
os-collect-config
Code Issues Proposed changes
Collect and cache metadata, run hooks on changes.
249 Commits 1 Branch 109 Tags 3.1 MiB
Python 100%
Go to file
Steve Baker d2c5bd1b0e Log with info instead of warn when collector not configured 
Users who are debugging unrelated issues are frequently interpreting
logged warnings as an indication that os-collect-config is misconfigured
when the warning is actually harmless.

This change uses info instead of warn for this logging.

Change-Id: I28e0fb37b603364eea72cdc5299a29259489b820
Closes-Bug: #1437952
 		2015-05-15 11:54:23 +12:00
os_collect_config Log with info instead of warn when collector not configured 2015-05-15 11:54:23 +12:00
.coveragerc Fix coverage report generation with tox 2014-06-03 11:00:07 -07:00
.gitignore Modify gitignore to ignore cover 2014-09-12 15:53:50 +09:00
.gitreview Update stackforge references to openstack 2013-08-17 22:59:30 -04:00
.testr.conf Remove env vars we don't use. 2013-03-28 04:05:31 +01:00
LICENSE Aligned tests with OpenStack standards. 2013-03-28 03:40:38 +01:00
MANIFEST.in Ensure that README file makes it into the tarball 2013-07-07 11:56:08 -04:00
README.rst Add diagram to os-collect-config README.rst 2014-03-26 09:13:19 -07:00
openstack-common.conf Importing openstack-common using update.py and openstack-common.conf 2013-06-26 17:49:26 -07:00
os-collect-config-and-friends.odg Add diagram to os-collect-config README.rst 2014-03-26 09:13:19 -07:00
os-collect-config-and-friends.svg Add diagram to os-collect-config README.rst 2014-03-26 09:13:19 -07:00
requirements.txt Updated from global requirements 2015-04-24 13:03:37 +00:00
setup.cfg Revert "Support building wheels (PEP-427)" 2013-11-29 12:56:17 +02:00
setup.py Updated from global requirements 2014-05-01 13:49:33 +00:00
test-requirements.txt Updated from global requirements 2014-11-20 14:11:12 +00:00
tox.ini Bump hacking to 0.9.x series 2014-11-13 13:11:00 +00:00

README.rst

os-collect-config

Collect configuration from cloud metadata sources

What does it do?

It collects data from defined configuration sources and runs a defined hook whenever the metadata has been changed.

image

1

Usage

You must define what sources to collect configuration data from in /etc/os-collect-config.conf.

The format of this file is:

[default]
command=os-refresh-config

[cfn]
metadata_url=http://192.0.2.99:8000/v1/
access_key_id = ABCDEFGHIJLMNOP01234567890
secret_access_key = 01234567890ABCDEFGHIJKLMNOP
path = MyResource
stack_name = my.stack

These sources will be polled and whenever any of them is changed, default.command will be run. A file will be written to the cache dir, os_config_files.json, which will be a json list of the file paths to the current copy of each metadata source. This list will also be set as a colon separated list in the environment variable OS_CONFIG_FILES for the command that is run. So in the example above, os-refresh-config would be executed with something like this in OS_CONFIG_FILES:

/var/lib/os-collect-config/ec2.json:/var/lib/os-collect-config/cfn.json

The previous version of the metadata from a source (if available) is present at $FILENAME.last.

When run without a command, the metadata sources are printed as a json document.

Quick Start

Install:

sudo pip install -U git+git://git.openstack.org/openstack/os-collect-config.git

Run it on an OpenStack instance with access to ec2 metadata:

os-collect-config

That should print out a json representation of the entire ec2 metadata tree.

  1. Recommend using LibreOffice draw to edit os-collect-config-and-friends.odg and regenerate the svg file. Alternatively edit the svg directly, but remove the .odg file if that is done.↩︎