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extended_drbd (7) Versions 0.0.1

DRBD recipe

cookbook 'extended_drbd', '= 0.0.1'
cookbook 'extended_drbd', '= 0.0.1', :supermarket
knife cookbook site install extended_drbd
knife cookbook site download extended_drbd
= Description: This cookbook is designed to setup and configure a pair of server with drbd. Please Note: this cookbook does not mount the drbd drive. This cookbook can be used in the following situations: 1) Fresh server pair installation (please see below for how to use). 2) Adding a server to another server running drbd. 3) Change drbd.conf file and have drbd update with out restarting. == How to use when creating a fresh server pair: Prerequisites: - Chef client must be installed on both servers. - The disk location (node[:drbd][:disk]) must exist. - The servers must be able to ssh to the other server. Note: In order for this work properly both servers need to be running chef at the same time, There are 2 ways to specify a drbd primary. 1) set an override attribute on the node directly "drbd":{"master"=true} 2) set an attribute "server_letter" as 'a' Once one server has been specified as drbd master you can add the recipe "drbd::drbd_fresh_install" to the run_list of both servers. == How to use when adding a new server to another server running drbd: This is the same as above except the new server is not specified as the drbd master, and you dont have to be running chef-client on the other server. == How to use when changing the drbd.conf file: On which ever server you are updated (or both) add the recipe "drbd::drbd_inplace_upgrade" to the server's run_list. And the next time Chef-client runs it will preform the changes in a safe way. The ways I have used this have been to call this drbd cookbook from within another cookbook, and have the second cookbook do the logic of decided whether or not this is a fresh install or inplace upgrade. Here is how I use it: if system(" [ -f /etc/drbd.conf ] ") include_recipe "extended_drbd::drbd_inplace_upgrade" else include_recipe "extended_drbd::drbd_fresh_install" end = ATTRIBUTES: default[:drbd][:packages] = ["kmod-drbd83", "drbd83"] default[:drbd][:remote_host] = nil default[:drbd][:disk] = "/dev/local/data" default[:drbd][:mount] = "/data" default[:drbd][:fs_type] = "ext3" default[:drbd][:dev] = "/dev/drbd0" default[:drbd][:master] = false default[:drbd][:port] = 7789 default[:drbd][:configured] = false default[:drbd][:stop_file] = "/etc/drbd_stop_file" default[:drbd][:syncrate] = "36M" default[:drbd][:resource] = "data" default[:my_expected_ip] = '' default[:server_partner_ip] ='' default[:server_partner_hostname] = '' default[:drbd][:primary][:designation] = 'a' default[:drbd][:secondary][:designation] = 'b' default[:server_letter] = "" = License DRBD Chef Recipe Copyright (C) 2012 Justin Witrick This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

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