cookbook-ceph/recipes/osd.rb

#
# Author:: Kyle Bader <kyle.bader@dreamhost.com>
# Cookbook Name:: ceph
# Recipe:: osd
#
# Copyright 2011, DreamHost Web Hosting
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# this recipe allows bootstrapping new osds, with help from mon
# Sample environment:
# #knife node edit ceph1
# "osd_devices": [
#   {
#       "device": "/dev/sdc"
#   },
#   {
#       "device": "/dev/sdd",
#       "dmcrypt": true,
#       "journal": "/dev/sdd"
#   }
# ]

include_recipe "ceph::default"
include_recipe "ceph::conf"

package 'gdisk' do
  action :upgrade
end

package 'cryptsetup' do
  action :upgrade
  only_if { node['dmcrypt'] }
end

service_type = node["ceph"]["osd"]["init_style"]
mons = node['ceph']['encrypted_data_bags'] ? get_mon_nodes : get_mon_nodes("ceph_bootstrap_osd_key:*")

return "No ceph-mon found." if mons.empty?

directory "/var/lib/ceph/bootstrap-osd" do
  owner "root"
  group "root"
  mode "0755"
end

# TODO: cluster name
cluster = 'ceph'

if node['ceph']['encrypted_data_bags']
  secret = Chef::EncryptedDataBagItem.load_secret(node["ceph"]["osd"]["secret_file"])
  osd_secret = Chef::EncryptedDataBagItem.load("ceph", "osd", secret)["secret"]
else
  osd_secret = mons[0]["ceph"]["bootstrap_osd_key"]
end

execute "format as keyring" do
  command "ceph-authtool '/var/lib/ceph/bootstrap-osd/#{cluster}.keyring' --create-keyring --name=client.bootstrap-osd --add-key='#{osd_secret}'"
  creates "/var/lib/ceph/bootstrap-osd/#{cluster}.keyring"
end

if crowbar?
  node["crowbar"]["disks"].each do |disk, data|
    execute "ceph-disk-prepare #{disk}" do
      command "ceph-disk-prepare /dev/#{disk}"
      only_if { node["crowbar"]["disks"][disk]["usage"] == "Storage" }
      notifies :run, "execute[udev trigger]", :immediately
    end

    ruby_block "set disk usage for #{disk}" do
      block do
        node.set["crowbar"]["disks"][disk]["usage"] = "ceph-osd"
        node.save
      end
    end
  end

  execute "udev trigger" do
    command "udevadm trigger --subsystem-match=block --action=add"
    action :nothing
  end
else
  # Calling ceph-disk-prepare is sufficient for deploying an OSD
  # After ceph-disk-prepare finishes, the new device will be caught
  # by udev which will run ceph-disk-activate on it (udev will map
  # the devices if dm-crypt is used).
  # IMPORTANT:
  #  - Always use the default path for OSD (i.e. /var/lib/ceph/
  # osd/$cluster-$id)
  #  - $cluster should always be ceph
  #  - The --dmcrypt option will be available starting w/ Cuttlefish
  if !node["ceph"]["osd_devices"].nil?
    devices = node["ceph"]["osd_devices"]

    devices = Hash[(0...devices.size).zip devices] unless devices.kind_of? Hash

    devices.each do |index, osd_device|
      unless osd_device["status"].nil?
        Log.info("osd: osd_device #{osd_device} has already been setup.")
        next
      end

      directory osd_device["device"] do # ~FC022
        owner "root"
        group "root"
        recursive true
        only_if { osd_device["type"] == "directory" }
      end

      dmcrypt = osd_device["encrypted"] == true ? '--dmcrypt' : ''

      execute "ceph-disk-prepare on #{osd_device['device']}" do
        command "ceph-disk-prepare #{dmcrypt} #{osd_device['device']} #{osd_device['journal']}"
        action :run
        notifies :create, "ruby_block[save osd_device status #{index}]", :immediately
      end

      execute "ceph-disk-activate #{osd_device['device']}" do
        only_if { osd_device["type"] == "directory" }
      end

      # we add this status to the node env
      # so that we can implement recreate
      # and/or delete functionalities in the
      # future.
      ruby_block "save osd_device status #{index}" do
        block do
          node.normal["ceph"]["osd_devices"][index]["status"] = "deployed"
          node.save
        end
        action :nothing
      end
    end
    service "ceph_osd" do
      case service_type
      when "upstart"
        service_name "ceph-osd-all-starter"
        provider Chef::Provider::Service::Upstart
      else
        service_name "ceph"
      end
      action [:enable, :start]
      supports :restart => true
    end
  else
    Log.info('node["ceph"]["osd_devices"] empty')
  end
end