Class: Sfn::Command::Destroy

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

Constant Summary

Constants inherited from Sfn::Command

CONFIG_BASE_NAME, VALID_CONFIG_EXTENSIONS

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 Method Details

#execute! ⇒ Object

Run the stack destruction action



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# File 'lib/sfn/command/destroy.rb', line 9

def execute!
  name_required!
  stacks = name_args.sort
  plural = "s" if stacks.size > 1
  globs = stacks.find_all do |s|
    s !~ /^[a-zA-Z0-9-]+$/
  end
  unless globs.empty?
    glob_stacks = provider.connection.stacks.all.find_all do |remote_stack|
      globs.detect do |glob|
        File.fnmatch(glob, remote_stack.name)
      end
    end
    stacks += glob_stacks.map(&:name)
    stacks -= globs
    stacks.sort!
  end
  ui.warn "Destroying Stack#{plural}: #{ui.color(stacks.join(", "), :bold)}"
  ui.confirm "Destroy listed stack#{plural}?"
  stacks.each do |stack_name|
    stack = provider.connection.stacks.get(stack_name)
    if stack
      nested_stack_cleanup!(stack)
      begin
        api_action!(:api_stack => stack) do
          stack.destroy
        end
      rescue Miasma::Error::ApiError::RequestError => error
        raise unless error.response.code == 404
        # if stack is already gone, disable polling
        config[:poll] = false
      end
      ui.info "Destroy request complete for stack: #{ui.color(stack_name, :red)}"
    else
      ui.warn "Failed to locate requested stack: #{ui.color(stack_name, :bold)}"
    end
  end
  if config[:poll]
    if stacks.size == 1
      pstack = stacks.first
      begin
        poll_stack(pstack)
        stack = provider.connection.stacks.get(pstack)
        stack.reload
        if stack.state.to_s.end_with?("failed")
          ui.error("Stack #{ui.color(pstack, :bold)} still exists after polling complete.")
          raise "Failed to successfully destroy stack!"
        end
      rescue Miasma::Error::ApiError::RequestError => error
        # Ignore if stack cannot be reloaded
      end
    else
      ui.error "Stack polling is not available when multiple stack deletion is requested!"
    end
  end
  ui.info "  -> Destroyed SparkleFormation#{plural}: #{ui.color(stacks.join(", "), :bold, :red)}"
end

#nested_stack_cleanup!(stack) ⇒ Object

Cleanup persisted templates if nested stack resources are included



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# File 'lib/sfn/command/destroy.rb', line 68

def nested_stack_cleanup!(stack)
  stack.nested_stacks.each do |n_stack|
    nested_stack_cleanup!(n_stack)
  end
  nest_stacks = stack.template.fetch("Resources", {}).values.find_all do |resource|
    provider.connection.data[:stack_types].include?(resource["Type"])
  end.each do |resource|
    url = resource["Properties"]["TemplateURL"]
    if url && url.is_a?(String)
      _, bucket_name, path = URI.parse(url).path.split("/", 3)
      bucket = provider.connection.api_for(:storage).buckets.get(bucket_name)
      if bucket
        file = bucket.files.get(path)
        if file
          file.destroy
          ui.info "Deleted nested stack template! (Bucket: #{bucket_name} Template: #{path})"
        else
          ui.warn "Failed to locate template file within bucket for deletion! (#{path})"
        end
      else
        ui.warn "Failed to locate bucket containing template file for deletion! (#{bucket_name})"
      end
    end
  end
end