Class: Sfn::Command::Events

Inherits:
Sfn::Command
  • Object
show all
Includes:
Sfn::CommandModule::Base
Defined in:
lib/sfn/command/events.rb

Overview

Events command

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Sfn::CommandModule::Base

included

Methods inherited from Sfn::Command

#config, #initialize

Methods included from Sfn::CommandModule::Callbacks

#api_action!, #callbacks_for, #run_callbacks_for

Constructor Details

This class inherits a constructor from Sfn::Command

Instance Attribute Details

#stack ⇒ Miasma::Models::Orchestration::Stack (readonly)

Returns:

  • (Miasma::Models::Orchestration::Stack) 


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# File 'lib/sfn/command/events.rb', line 11

def stack
  @stack
end

Instance Method Details

#allowed_attributes ⇒ Array<String>

Returns allowed attributes for events.

Returns:

  • (Array<String>) —

    allowed attributes for events



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# File 'lib/sfn/command/events.rb', line 99

def allowed_attributes
  result = super
  unless(@stacks.size > 1)
    result.delete('stack_name')
  end
  result
end

#default_attributes ⇒ Array<String>

Returns default attributes for events.

Returns:

  • (Array<String>) —

    default attributes for events



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# File 'lib/sfn/command/events.rb', line 94

def default_attributes
  %w(stack_name time resource_logical_id resource_status resource_status_reason)
end

#discover_stacks(stack) ⇒ Object

Discover stacks defined within the resources of given stack

Parameters:

  • stack (Miasma::Models::Orchestration::Stack) 


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# File 'lib/sfn/command/events.rb', line 81

def discover_stacks(stack)
  stack.resources.reload.all.each do |resource|
    if(resource.type == 'AWS::CloudFormation::Stack')
      nested_stack = provider.connection.stacks.get(resource.id)
      if(nested_stack)
        @stacks.push(nested_stack).uniq!
        discover_stacks(nested_stack)
      end
    end
  end
end

#execute! ⇒ Object

Run the events list action



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# File 'lib/sfn/command/events.rb', line 14

def execute!
  name_required!
  name = name_args.first
  ui.info "Events for Stack: #{ui.color(name, :bold)}\n"
  @stacks = []
  @stack = provider.connection.stacks.get(name)
  @stacks << stack
  discover_stacks(stack)
  if(stack)
    api_action!(:api_stack => stack) do
      table = ui.table(self) do
        table(:border => false) do
          events = get_events
          row(:header => true) do
            allowed_attributes.each do |attr|
              width_val = events.map{|e| e[attr].to_s.length}.push(attr.length).max + 2
              width_val = width_val > 70 ? 70 : width_val < 20 ? 20 : width_val
              column attr.split('_').map(&:capitalize).join(' '), :width => width_val
            end
          end
          events.each do |event|
            row do
              allowed_attributes.each do |attr|
                column event[attr]
              end
            end
          end
        end
      end.display
      if(config[:poll])
        while(stack.in_progress?)
          to_wait = config.fetch(:poll_wait_time, 10).to_f
          while(to_wait > 0)
            sleep(0.1)
            to_wait -= 0.1
          end
          stack.reload
          table.display
        end
      end
    end
  else
    ui.fatal "Failed to locate requested stack: #{ui.color(name, :bold, :red)}"
    raise "Failed to locate stack: #{name}!"
  end
end

#get_events(*args) ⇒ Array<Hash>

Fetch events from stack

Parameters:

  • stack (Miasma::Models::Orchestration::Stack)
  • last_id (String) —

    only return events after this ID

Returns:

  • (Array<Hash>) 


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# File 'lib/sfn/command/events.rb', line 66

def get_events(*args)
  discover_stacks(stack)
  stack_events = @stacks.map do |stack|
    stack.events.all.map do |e|
      e.attributes.merge(:stack_name => stack.name).to_smash
    end
  end.flatten.compact.find_all{|e| e[:time] }
  stack_events.sort do |x,y|
    Time.parse(x[:time].to_s) <=> Time.parse(y[:time].to_s)
  end
end