Class: Cheftacular::DNS

Inherits:
Object
  • Object
show all
Defined in:
lib/cheftacular/dns.rb

Instance Method Summary collapse

Constructor Details

#initialize(options, config) ⇒ DNS

Returns a new instance of DNS.



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# File 'lib/cheftacular/dns.rb', line 4

def initialize options, config
  @options, @config  = options, config
end

Instance Method Details

#compile_address_hash_for_server_from_options(*args) ⇒ Object 



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# File 'lib/cheftacular/dns.rb', line 151

def compile_address_hash_for_server_from_options *args
  target_serv_index = args.include?('set_hash_to_nil') ? nil : @config[@options['env']]['addresses_bag_hash']['addresses'].count
  tld               = @config[@options['env']]['config_bag_hash'][@options['sub_env']]['tld']

  args.each do |arg|
    if arg.include?('set_specific_domain:')
      full_domain = arg.split(':').last

      args << 'set_domain_name'
    end
  end

  full_domain ||= "#{ @options['node_name'] }.#{ tld }"

  @config[@options['env']]['addresses_bag_hash'] = @config[@options['env']]['addresses_bag'].reload.to_hash

  @config[@options['env']]['addresses_bag_hash']['addresses'].each do |serv_hash|
    target_serv_index = @config[@options['env']]['addresses_bag_hash']['addresses'].index(serv_hash) if serv_hash['name'] == @options['node_name']
  end

  #EX: "name": "api1", "public": "1.2.3.4", "address": "10.208.1.2", "dn":"api1.example.com", "descriptor": "lb:my-backend-codebase"
  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index] ||= {}                                      unless args.include?('set_hash_to_nil')
  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index]['name']       = @options['node_name']       if args.include?('set_node_name') || args.include?('set_all_attributes')
  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index]['public']     = @options['address']         if args.include?('set_public_address') || args.include?('set_all_attributes')
  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index]['address']    = @options['private_address'] if args.include?('set_private_address') || args.include?('set_all_attributes')
  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index]['dn']         = full_domain                 if args.include?('set_domain_name') || args.include?('set_all_attributes')
  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index]['descriptor'] = (@options['descriptor'].nil? ? @options['node_name'] : @options['descriptor']) if args.include?('set_descriptor') || args.include?('set_all_attributes')

  if !target_serv_index.nil? && target_serv_index.is_a?(Fixnum) && !@options['dont_remove_address_or_server'] && args.include?('set_hash_to_nil')
    puts("Found entry in addresses data bag corresponding to #{ @options['node_name'] } for #{ @options['env'] }, removing...") unless @options['quiet']

    domain_obj = PublicSuffix.parse @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index]['dn']

    @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index] = nil
  
    @config[@options['env']]['addresses_bag_hash']['addresses'] = @config[@options['env']]['addresses_bag_hash']['addresses'].compact

    @config['stateless_action'].cloud "domain", "destroy_record:#{ domain_obj.tld }:#{ domain_obj.trd }" if domain_obj.tld == @config[@options['env']]['config_bag_hash'][@options['sub_env']]['tld']
  end

  @config[@options['env']]['addresses_bag_hash']['addresses'][target_serv_index] unless args.include?('set_hash_to_nil')
end

#create_dns_record_for_domain_from_address_hash(domain, address_hash, *args) ⇒ Object 



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# File 'lib/cheftacular/dns.rb', line 79

def create_dns_record_for_domain_from_address_hash domain, address_hash, *args
  domain_obj   = PublicSuffix.parse("#{ address_hash['name'] }.#{ domain }") if args.empty?
  domain_obj ||= PublicSuffix.parse domain

  if args.include?('specific_domain_mode')
    puts("running cloud domain create_record:#{ domain_obj.domain }:#{ domain_obj.trd }:#{ address_hash['public'] }") if @options['verbose']

    @config['stateless_action'].cloud "domain", "create_record:#{ domain_obj.domain }:#{ domain_obj.trd }:#{ address_hash['public'] }"

    sleep 5

    puts("running cloud domain create_record:#{ domain_obj.domain }:local.#{ domain_obj.trd }:#{ address_hash['address'] }") if @options['verbose']

    @config['stateless_action'].cloud "domain", "create_record:#{ domain_obj.domain }:local.#{ domain_obj.trd }:#{ address_hash['address'] }"

    #set the wildcard domain for frontend load balancers
    if should_route_wildcard_requests?(address_hash['name'], @options['env'], address_hash['descriptor'])
      puts("running cloud domain create_record:#{ domain_obj.domain }:*:#{ address_hash['public'] }") if @options['verbose']
      
      @config['stateless_action'].cloud "domain", "create_record:#{ domain_obj.domain }:*:#{ address_hash['public'] }"
    end
  elsif args.empty?
    puts("running cloud domain create_record:#{ domain }:#{ address_hash['name'] }:#{ address_hash['public'] }") if @options['verbose']

    @config['stateless_action'].cloud "domain", "create_record:#{ domain }:#{ address_hash['name'] }:#{ address_hash['public'] }"

    sleep 5

    puts("running cloud domain create:create_record:#{ domain }:local.#{ address_hash['name'] }:#{ address_hash['address'] }") if @options['verbose']

    @config['stateless_action'].cloud "domain", "create_record:#{ domain }:local.#{ address_hash['name'] }:#{ address_hash['address'] }"
  end

  unless @config[@options['env']]['config_bag_hash'][@options['sub_env']]['cloudflare_activated_domains'].empty?
    return true unless @config[@options['env']]['config_bag_hash'][@options['sub_env']]['tld'] != domain_obj.tld

    target_domain_records  = []
    target_domain_records << {
      'name' => "#{ domain_obj.trd }.#{ domain_obj.domain }",
      'type' => 'A',
      'value' => address_hash['public'],
      'ttl'   => 300
    }

    target_domain_records << {
      'name' => "local.#{ domain_obj.trd }.#{ domain_obj.domain }",
      'type' => 'A',
      'value' => address_hash['address'],
      'ttl'   => 300
    }

    #ap target_domain_records

    update_cloudflare_from_array_of_domain_hashes domain_obj.domain, target_domain_records
  end
end

#should_route_wildcard_requests?(node_name, env, descriptor, should_route_requests = false) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cheftacular/dns.rb', line 136

def should_route_wildcard_requests? node_name, env, descriptor, should_route_requests=false
  repository_hash   = descriptor.blank? ? {} : @config['parser'].parse_repository_hash_from_string(descriptor)
  repository_hash ||= {}

  if repository_hash.empty?
    puts "Blank repository hash parsed for #{ node_name } in #{ env } with descriptor #{ descriptor }. Setting should route wildcard requests for server to false."
  end

  if repository_hash.has_key?('role') && @config['helper'].does_cheftacular_config_have?(["repositories:#{ repository_hash['role'] }:route_wildcard_requests_for_tld"])
    should_route_requests = @config['cheftacular']['repositories'][repository_hash['role']]['route_wildcard_requests_for_tld']
  end

  should_route_requests
end

#update_cloudflare_from_array_of_domain_hashes(target_domain, target_domain_records) ⇒ Object 



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# File 'lib/cheftacular/dns.rb', line 8

def update_cloudflare_from_array_of_domain_hashes target_domain, target_domain_records
  unless @config['helper'].does_cheftacular_config_have?(['cloudflare:api_key', 'cloudflare:user_email'])
    puts "Critical! You tried to run update_cloudflare but have not set a cloudflare_api_key or cloudflare_user_email! Please set these keys and run this method again!"

    exit
  end

  if @config[@options['env']]['config_bag_hash'][@options['sub_env']]['cloudflare_activated_domains'].empty?
    puts "Critical! Tere are no entries in the 'cloudflare_activated_domains' array for domain #{ target_domain }! Please open the #{ @options['env'] } data bag item " +
    "\"config\" and add the domains you want to be protected by cloudflare to the array as strings!"

    exit
  end

  @config['cloudflare'] = CloudFlare::connection(@config['cheftacular']['cloudflare']['api_key'], @config['cheftacular']['cloudflare']['user_email'])

  puts("Preparing to update cloudflare for domain #{ target_domain }...") unless @options['quiet']

  cloudflare_records_hash = fetch_cloudflare_records_as_hash target_domain

  puts('#'.ljust(4) + 'subdomain'.ljust(50) + 'type'.ljust(6) + 'ttl'.ljust(5) + 'cloudflare_on ' + 'mode'.ljust(20) + 'value') unless @options['quiet']

  domain_count = 1

  target_domain_records.each do |record_hash|
    next if record_hash['type'] =~ /NS/

    if record_hash['type'] =~ /A/
      record_hash['activate_cloudflare'] = @config[@options['env']]['config_bag_hash'][@options['sub_env']]['cloudflare_activated_domains'].include?(record_hash['name'])
    end

    print(domain_count.to_s.ljust(4, '_') + 
      record_hash['name'].ljust(50, '_') + 
      record_hash['type'].ljust(6, '_') + 
      record_hash['ttl'].to_s.ljust(5, '_') + 
      record_hash['activate_cloudflare'].to_s.ljust(14, '_')
    )

    if cloudflare_records_hash.has_key?("#{ record_hash['name'] }-#{ record_hash['type'] }") && ( !cloudflare_records_hash["#{ record_hash['name'] }-#{ record_hash['type'] }"].empty? ||
      cloudflare_record_does_include_value?(cloudflare_records_hash["#{ record_hash['name'] }-#{ record_hash['type'] }"], record_hash['value']) )

      edit_cloudflare_record target_domain, record_hash, cloudflare_records_hash
    else
      compile_cloudflare_record_srv_attributes_on_record_hash record_hash, target_domain

      @config['cloudflare'].rec_new(
        target_domain,
        record_hash['type'],
        record_hash['name'],
        record_hash['value'],
        record_hash['ttl'],
        record_hash['SRV_service'],
        record_hash['SRV_srvname'],
        record_hash['SRV_protocol'],
        record_hash['SRV_weight'],
        record_hash['SRV_port'],
        record_hash['SRV_target'],
        (record_hash['activate_cloudflare'] ? 1 : 0) #service_mode
      )

      print 'create'.ljust(20, '_')
    end

    domain_count += 1

    print record_hash['value'] unless @options['quiet']

    puts unless @options['quiet']
  end
end