Class: Chef::Knife::CloudformationEvents

Inherits:
Chef::Knife show all
Includes:
KnifeCloudformation::Knife::Base
Defined in:
lib/chef/knife/cloudformation_events.rb

Overview

Cloudformation list command

Instance Method Summary collapse

Methods included from KnifeCloudformation::Knife::Base

included

Instance Method Details

#_run ⇒ Object

Run the events list action



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# File 'lib/chef/knife/cloudformation_events.rb', line 46

def _run
  name = name_args.first
  ui.info "Cloud Formation Events for Stack: #{ui.color(name, :bold)}\n"
  stack = provider.connection.stacks.get(name)
  last_id = nil
  if(stack)
    events = get_events(stack)
    things_output(name, events, 'events')
    last_id = events.last ? events.last[:id] : nil
    if(Chef::Config[:knife][:cloudformation][:poll])
      cycle_events = true
      while(cycle_events)
        cycle_events = stack.in_progress?
        sleep(Chef::Config[:knife][:cloudformation][:poll_delay] || 10)
        stack.events.reload
        events = get_events(stack, last_id)
        unless(events.empty?)
          last_id = events.last[:id]
          things_output(nil, events, 'events', :no_title, :ignore_empty_output)
        end
        nest_stacks = stack.resources.all.find_all do |resource|
          resource.state.to_s.end_with?('in_progress') &&
            resource.type == 'AWS::CloudFormation::Stack'
        end
        if(nest_stacks)
          nest_stacks.each do |nest_stack|
            begin
              poll_stack(nest_stack.id)
              ui.info "Complete event listing for nested stack (#{nest_stack.name})"
            rescue => e
              ui.warn "Error encountered on event listing for nested stack - #{e} (#{nest_stack.name})"
            end
          end
        end
        stack.reload
      end
      # Extra to see completion
      things_output(nil, get_events(stack, last_id), 'events', :no_title, :ignore_empty_output)
    end
  else
    ui.fatal "Failed to locate requested stack: #{ui.color(name, :bold, :red)}"
    raise "Failed to locate stack: #{name}!"
  end
end

#default_attributes ⇒ Array<String> 



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# File 'lib/chef/knife/cloudformation_events.rb', line 112

def default_attributes
  %w(time resource_logical_id resource_status resource_status_reason)
end

#get_events(stack, last_id = nil) ⇒ Array<Hash>

Fetch events from stack



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# File 'lib/chef/knife/cloudformation_events.rb', line 96

def get_events(stack, last_id=nil)
  get_things do
    stack_events = stack.events.all
    if(last_id)
      start_index = stack_events.index{|event| event.id == last_id}
      events = stack_events.slice(0, start_index.to_i)
    else
      events = stack_events
    end
    events.map do |event|
      Mash.new(event.attributes)
    end
  end
end