Module: Capsaicin::Service::CRM

Included in:
Capsaicin::Service
Defined in:
lib/capsaicin/service/crm.rb

Constant Summary collapse

DEFAULT_ACTIONS =
[	[ :status, '-W' ],
[ :summary, "-x | awk '/^raw xml:/ { exit }; { print }'" ],
[ :start, "--meta -d 'target_role'" ],
[ :stop, "--meta -p 'target_role' -v 'stopped'" ] ]
OCF_DEFAULT_ACTIONS =
[ [ :validate, '-c -C' ],
[ :monitor, '-c -m' ] ]

Instance Method Summary collapse

Instance Method Details

#crm(id, *args) ⇒ Object

Defines a recipe to control a cluster-managed service, using heartbeat or pacemaker.


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# File 'lib/capsaicin/service/crm.rb', line 15

def crm(id,*args)
  options = Hash===args.last ? args.pop : {}

  svc_name = id.to_s
  svc_desc = next_description(:reset) || (svc_name.capitalize unless options.delete(:hide))
  svc_actions = DEFAULT_ACTIONS 
  svc_actions += args.pop if Array === args.last

  namespace id do

    case args.first
    when String; id = args.shift.intern
    when Symbol; id = args.shift
    end
    svc_cmd = "/usr/sbin/crm_resource -r #{id.to_s.split(':').last}"

    desc "#{svc_desc}: #{SVC_ACTION_CAPTIONS[:status]}" if svc_desc
    task :default, options do
        sudo "#{svc_cmd} -W"
    end

    svc_actions.each do |svc_action,svc_args|
      svc_action = svc_action.intern unless Symbol===svc_action
      desc "#{svc_desc}: #{SVC_ACTION_CAPTIONS[svc_action]}" if svc_desc
      task svc_action, options do
        sudo "#{svc_cmd} #{svc_args}"
      end
    end

    instance_eval { yield } if block_given?
  end
end

#crm_ocf(id, *args) ⇒ Object

Defines a recipe providing additional controls for a cluster-managed service, using the ocf_resource tool which interoperates with heartbeat or pacemaker.

For more information about ocf_resource and other add-ons for heartbeat/pacemaker, see github.com/joekhoobyar/ha-tools


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# File 'lib/capsaicin/service/crm.rb', line 54

def crm_ocf(id,*args)
  options = Hash===args.last ? args.pop : {}

  svc_name = id.to_s
  svc_desc = next_description(:reset) || (svc_name.capitalize unless options.delete(:hide))
  svc_actions = DEFAULT_ACTIONS 
  svc_actions += args.pop if Array === args.last

  namespace id do

    case args.first
    when String; id = args.shift.intern
    when Symbol; id = args.shift
    end
    svc_cmd = "ocf_resource -g #{id.to_s.split(':').last}"

    svc_actions.each do |svc_action,svc_args|
      svc_action = svc_action.intern if String === svc_action
      desc "#{svc_desc}: #{SVC_ACTION_CAPTIONS[svc_action]}" if svc_desc
      task svc_action, options do
        sudo "#{svc_cmd} #{svc_args}"
      end
    end

    instance_eval { yield } if block_given?
  end
end