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_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]}"
    nested_stacks = file.delete('sfn_nested_stack')
  end

  if(nested_stacks)

    unpack_nesting(name, file, :update)

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

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

      unless(file)
        if(Chef::Config[:knife][:cloudformation][:template])
          file = Chef::Config[:knife][:cloudformation][:template]
          stack_info << " #{ui.color('(template provided)', :green)}"
        else
          stack_info << " #{ui.color('(no template update)', :yellow)}"
        end
      end
      ui.info "  -> #{stack_info}"

      apply_stacks!(stack)

      if(file)
        populate_parameters!(file, stack.parameters)
        stack.template = translate_template(file)
        stack.parameters = Chef::Config[:knife][:cloudformation][:options][:parameters]
        stack.template = KnifeCloudformation::Utils::StackParameterScrubber.scrub!(stack.template)
      else
        populate_parameters!(stack.template, stack.parameters)
        stack.parameters = Chef::Config[:knife][:cloudformation][:options][:parameters]
      end

      begin
        stack.save
      rescue Miasma::Error::ApiError::RequestError => e
        if(e.message.downcase.include?('no updates')) # :'(
          ui.warn "No updates detected for stack (#{stack.name})"
        else
          raise
        end
      end

      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
end

#redefault_stack_parameters(template, stack) ⇒ Hash

TODO:

to be scrubbed

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 126

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