Class: Stack

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudformer/stack.rb

Constant Summary collapse

SUCESS_STATES = 
["CREATE_COMPLETE", "UPDATE_COMPLETE"]
FAILURE_STATES = 
["CREATE_FAILED", "DELETE_FAILED", "UPDATE_ROLLBACK_FAILED", "ROLLBACK_FAILED", "ROLLBACK_COMPLETE","ROLLBACK_FAILED","UPDATE_ROLLBACK_COMPLETE","UPDATE_ROLLBACK_FAILED"]
END_STATES = 
SUCESS_STATES + FAILURE_STATES

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stack_name) ⇒ Stack

WAITING_STATES = [“CREATE_IN_PROGRESS”,“DELETE_IN_PROGRESS”,“ROLLBACK_IN_PROGRESS”,“UPDATE_COMPLETE_CLEANUP_IN_PROGRESS”,“UPDATE_IN_PROGRESS”,“UPDATE_ROLLBACK_COMPLETE_CLEANUP_IN_PROGRESS”,“UPDATE_ROLLBACK_IN_PROGRESS”]



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# File 'lib/cloudformer/stack.rb', line 12

def initialize(stack_name)
  @name = stack_name
  @cf = AWS::CloudFormation.new
  @stack = @cf.stacks[name]
  @ec2 = AWS::EC2.new
end

Instance Attribute Details

#deployed ⇒ Object

Returns the value of attribute deployed.



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# File 'lib/cloudformer/stack.rb', line 5

def deployed
  @deployed
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/cloudformer/stack.rb', line 5

def name
  @name
end

#stack ⇒ Object

Returns the value of attribute stack.



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# File 'lib/cloudformer/stack.rb', line 5

def stack
  @stack
end

Instance Method Details

#apply(template_file, parameters, disable_rollback = false, capabilities = [], notify = [], tags = []) ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 23

def apply(template_file, parameters, disable_rollback=false, capabilities=[], notify=[], tags=[])
  if ( template_file =~ /^https:\/\/s3\S+\.amazonaws\.com\/(.*)/ )
    template = template_file
  elsif ( template_file =~ /^http.*(.json)$/ )
    begin
      response = HTTParty.get(template_file)
      template = response.body
    rescue => e
      puts "Unable to retieve json file for template from #{template_file} - #{e.class}, #{e}"
      return :Failed
    end
  else
    template = File.read(template_file)
  end
  validation = validate(template)
  unless validation["valid"]
    puts "Unable to update - #{validation["response"][:code]} - #{validation["response"][:message]}"
    return :Failed
  end
  pending_operations = false
  begin
    if deployed
      pending_operations = update(template, parameters, capabilities)
    else
      pending_operations = create(template, parameters, disable_rollback, capabilities, notify, tags)
    end
  rescue ::AWS::CloudFormation::Errors::ValidationError => e
    puts e.message
    return (if e.message == "No updates are to be performed." then :NoUpdates else :Failed end)
  end
  wait_until_end if pending_operations
  return (if deploy_succeded? then :Succeeded else :Failed end)
end

#delete ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 71

def delete
  with_highlight do
    puts "Attempting to delete stack - #{name}"
    stack.delete
    wait_until_end
    return deploy_succeded?
  end
end

#deploy_succeded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cloudformer/stack.rb', line 57

def deploy_succeded?
  return true unless FAILURE_STATES.include?(stack.status)
  puts "Unable to deploy template. Check log for more information."
  false
end

#events(options = {}) ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 90

def events(options = {})
  with_highlight do
    if !deployed
      puts "Stack not up."
      return
    end
    stack.events.sort_by {|a| a.timestamp}.each do |event|
      puts "#{event.timestamp} - #{event.physical_resource_id.to_s} - #{event.logical_resource_id} - #{event.resource_type} - #{event.resource_status} - #{event.resource_status_reason.to_s}"
    end
  end
end

#outputs ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 102

def outputs
  with_highlight do
  if !deployed
    puts "Stack not up."
    return 1
  end
    stack.outputs.each do |output|
      puts "#{output.key} - #{output.description} - #{output.value}"
    end
  end
  return 0
end

#start_instances ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 67

def start_instances
  update_instances("start")
end

#status ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 80

def status
  with_highlight do
    if deployed
      puts "#{stack.name} - #{stack.status} - #{stack.status_reason}"
    else
      puts "#{name} - Not Deployed"
    end
  end
end

#stop_instances ⇒ Object 



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# File 'lib/cloudformer/stack.rb', line 63

def stop_instances
 update_instances("stop")
end