https://github.com/bmhatfield/chef-deregistration-manager

Queue Based Chef Client Deregistration for the Cloud
https://github.com/bmhatfield/chef-deregistration-manager

Last synced: 10 days ago
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Queue Based Chef Client Deregistration for the Cloud

• Host: GitHub
• URL: https://github.com/bmhatfield/chef-deregistration-manager
• Owner: bmhatfield
• Archived: true
• Created: 2012-07-20T01:41:21.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2012-10-18T17:19:10.000Z (about 13 years ago)
• Last Synced: 2025-02-10T19:25:10.414Z (9 months ago)
• Language: Python
• Size: 188 KB
• Stars: 14
• Watchers: 4
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
chef-deregistration-manager

===========================

**Queue Based Chef Client Deregistration for the Cloud**

Building Debian Packages

------------------------

    sudo aptitude install build-essential git python-stdeb

    git clone https://github.com/bmhatfield/chef-deregistration-manager.git

    cd chef-deregistration-manager

    python setup.py --command-packages=stdeb.command bdist_deb

chef-deregistration-manager

---------------------------

Dependencies:

  python-setuptools

  python-configobj

  python-boto (2+)

  python-pychef (https://github.com/coderanger/pychef)

  python-nagcgi (https://github.com/bmhatfield/NagiosCGI)

    Polls SQS

        If the queue does not exist:

            Create queue - The name is a combination of queue_name and id, both configurable

        If there are events:

            Grab event.

            If the event is a 'delete':

                Put instance in downtime in Nagios

                Dump Chef node JSON to disk

                Remove Chef Node via Chef API

                Remove Chef Client via Chef API

                If there are no more events:

                    Trigger chef-client run

            If the event is an 'ensure':

                Fire Alert

                Recreate Node in Chef

chef-registration-init (clients)

--------------------------------

    stop():

      if runlevel == 0:

        Issue SNS message to delete node

FAQ

---------------

Q: It won't start.  

A: Make sure that the dependencies are installed, and that you've created server.cfg and client.cfg (the install creates example.cfg)  

Q: Why would I put my AWS credentials on every host?! That's insecure!  

A: We use IAM to create credentials that only have permission to publish to the relevant queue. The server's credentials will need the ability to create and manage SNS endpoints as well as SQS queues, as well.  

More information

----------------

This code based upon:

    http://www.nuvolesystems.com/2012/07/02/chef-node-de-registration-for-autoscaling-groups/