Class: Chef::Knife::CloudformationUpdate

Inherits:
Chef::Knife show all
Includes:
KnifeCloudformation::Knife::Base, KnifeCloudformation::Knife::Stack, KnifeCloudformation::Knife::Template
Defined in:
lib/chef/knife/cloudformation_update.rb

Constant Summary

Constants included from KnifeCloudformation::Knife::Template

KnifeCloudformation::Knife::Template::TEMPLATE_IGNORE_DIRECTORIES

Instance Method Summary collapse

Methods included from KnifeCloudformation::Knife::Stack

included

Methods included from KnifeCloudformation::Knife::Template

included

Methods included from KnifeCloudformation::Knife::Base

included

Instance Method Details

#_run ⇒ Object

Run the stack creation command



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# File 'lib/chef/knife/cloudformation_update.rb', line 33

def _run
  name = name_args.first
  unless(name)
    ui.fatal "Formation name must be specified!"
    exit 1
  end

  stack = provider.connection.stacks.get(name)

  if(stack)
    ui.info "#{ui.color('Cloud Formation:', :bold)} #{ui.color('update', :green)}"
    stack_info = "#{ui.color('Name:', :bold)} #{name}"

    if(Chef::Config[:knife][:cloudformation][:file])
      file = load_template_file
      stack_info << " #{ui.color('Path:', :bold)} #{Chef::Config[:knife][:cloudformation][:file]}"
    else
      stack_info << " #{ui.color('(no temlate update)', :yellow)}"
    end
    ui.info "  -> #{stack_info}"

    apply_stacks!(stack)

    if(file)
      stack_parameters_update!(stack)
      stack.template = translate_template(file)
      stack.parameters = Chef::Config[:knife][:cloudformation][:parameters]
    else
      stack_parameters_update!(stack)
    end

    stack.save

    if(Chef::Config[:knife][:cloudformation][:poll])
      poll_stack(stack.name)
      if(stack.success?)
        ui.info "Stack update complete: #{ui.color('SUCCESS', :green)}"
        knife_output = Chef::Knife::CloudformationDescribe.new
        knife_output.name_args.push(name)
        knife_output.config[:outputs] = true
        knife_output.run
      else
        ui.fatal "Update of stack #{ui.color(name, :bold)}: #{ui.color('FAILED', :red, :bold)}"
        ui.info ""
        knife_inspect = Chef::Knife::CloudformationInspect.new
        knife_inspect.name_args.push(name)
        knife_inspect.config[:instance_failure] = true
        knife_inspect.run
        exit 1
      end
    else
      ui.warn 'Stack state polling has been disabled.'
      ui.info "Stack update initialized for #{ui.color(name, :green)}"
    end
  else
    ui.fatal "Failed to locate requested stack: #{ui.color(name, :red, :bold)}"
    exit -1
  end
end

#apply_stacks!(stack) ⇒ Miasma::Models::Orchestration::Stack

Apply any defined remote stacks

Parameters:

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

Returns:

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


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

def apply_stacks!(stack)
  remote_stacks = Chef::Config[:knife][:cloudformation].
    fetch(:update, {}).fetch(:apply_stacks, [])
  remote_stacks.each do |stack_name|
    remote_stack = provider.connection.stacks.get(stack_name)
    if(remote_stack)
      remote_stack.parameters.each do |key, value|
        next if Chef::Config[:knife][:cloudformation][:stacks][:ignore_parameters].include?(key)
        if(stack.parameters.has_key?(key))
          stack.parameters[key] = value
        end
      end
    else
      ui.error "Failed to apply requested stack. Unable to locate. (#{stack_name})"
      exit 1
    end
  end
  stack
end

#redefault_stack_parameters(template, stack) ⇒ Hash

Update default values for parameters in template with currently used parameters on the existing stack

Parameters:

  • template (Hash) —

    stack template

  • stack (Fog::Orchestration::Stack)

Returns:

  • (Hash) 


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# File 'lib/chef/knife/cloudformation_update.rb', line 99

def redefault_stack_parameters(template, stack)
  stack.parameters.each do |key, value|
    if(template['Parameters'][key])
      template['Parameters'][key]['Default'] = value
    end
  end
  template
end

#stack_parameters_update!(stack) ⇒ Miasma::Models::Orchestration::Stack

Update parameters within existing stack

Parameters:

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

Returns:

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


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# File 'lib/chef/knife/cloudformation_update.rb', line 136

def stack_parameters_update!(stack)
  stack.parameters.each do |key, value|
    answer = ui.ask_question("#{key.split(/([A-Z]+[^A-Z]*)/).find_all{|s|!s.empty?}.join(' ')}: ", :default => value)
    stack.parameters[key] = answer
  end
end