Class: Chef::Knife::Ec2ServerDelete

Inherits:
Chef::Knife show all
Includes:
Ec2Base
Defined in:
lib/chef/knife/ec2_server_delete.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Ec2Base

#ami, #connection_string, #ec2_connection, #fetch_ami, #fetch_ec2_instance, #fetch_network_interfaces, #fetch_password_data, #fetch_region, #fetch_subnet, #find_name_tag, included, #is_image_windows?, #msg_pair, #normalize_server_data, #validate_aws_config!, #vpc_mode?

Methods inherited from Chef::Knife

#aws_cred_file_location, #custom_warnings!, #find_server_platform, #iam_name_from_profile, #ini_parse

Instance Attribute Details

#server ⇒ Object (readonly)

Returns the value of attribute server.



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# File 'lib/chef/knife/ec2_server_delete.rb', line 36

def server
  @server
end

Instance Method Details

#destroy_item(klass, name, type_name) ⇒ Object

Extracted from Chef::Knife.delete_object, because it has a confirmation step built in... By specifying the '--purge' flag (and also explicitly confirming the server destruction!) the user is already making their intent known. It is not necessary to make them confirm two more times.



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# File 'lib/chef/knife/ec2_server_delete.rb', line 62

def destroy_item(klass, name, type_name)
  object = klass.load(name)
  object.destroy unless config[:dry_run]
  ui.warn("Deleted #{type_name} #{name}")
rescue Net::HTTPServerException
  ui.warn("Could not find a #{type_name} named #{name} to delete!")
end

#fetch_instance_id(name) ⇒ String

Returns:

  • (String) 


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# File 'lib/chef/knife/ec2_server_delete.rb', line 120

def fetch_instance_id(name)
  result = query.search(:node, "name:#{name}")
  unless result.first.empty?
    node = result.first.first
    if node.attribute?("ec2")
      node["ec2"]["instance_id"]
    end
  end
end

#fetch_node_name(instance_id) ⇒ String

Returns:

  • (String) 


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# File 'lib/chef/knife/ec2_server_delete.rb', line 110

def fetch_node_name(instance_id)
  result = query.search(:node, "ec2_instance_id:#{instance_id}")
  unless result.first.empty?
    result.first.first.name
  else
    instance_id
  end
end

#query ⇒ Chef::Search::Query

Returns:

  • (Chef::Search::Query) 


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# File 'lib/chef/knife/ec2_server_delete.rb', line 131

def query
  @query ||= Chef::Search::Query.new
end

#run ⇒ Object 



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# File 'lib/chef/knife/ec2_server_delete.rb', line 70

def run
  validate_aws_config!
  validate_instances!

  server_hashes.each do |h|
    instance_id = h["instance_id"]
    msg_pair("Instance ID", instance_id)
    msg_pair("Instance Name", h["name"])
    msg_pair("Flavor", h["instance_type"])
    msg_pair("Image", h["image_id"])
    msg_pair("Region", fetch_region)
    msg_pair("Availability Zone", h["az"])
    msg_pair("Security Groups", h["security_groups"])
    msg_pair("IAM Profile", h["iam_instance_profile"])
    msg_pair("SSH Key", h["key_name"])
    msg_pair("Root Device Type", h["root_device_type"])
    msg_pair("Public DNS Name", h["public_dns_name"])
    msg_pair("Public IP Address", h["public_ip_address"])
    msg_pair("Private DNS Name", h["private_dns_name"])
    msg_pair("Private IP Address", h["private_ip_address"])

    puts "\n"
    confirm("Do you really want to delete this server")

    delete_instance(instance_id) unless config[:dry_run]

    ui.warn("Deleted server #{instance_id}")

    if config[:purge]
      node_name = config[:chef_node_name] || fetch_node_name(instance_id)
      destroy_item(Chef::Node, node_name, "node")
      destroy_item(Chef::ApiClient, node_name, "client")
    else
      ui.warn("Corresponding node and client for the #{instance_id} server were not deleted and remain registered with the Chef Server")
    end
    puts "\n"
  end
end