Class: Parameters

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

Overview

class for validating command line parameters and direct to relevant action

Instance Method Summary collapse

Instance Method Details

#AskUser ⇒ Object

Get approval from user to revert/shift after reviewing the changes



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# File 'lib/dyntool.rb', line 178

def AskUser()
	HighLine.track_eof = false
	@answer = ask("Are you sure you want to revert? (yes) ") { |q| q.echo = true } 
	if @answer != "yes"
		exit 2
	end
end

#CloseTheSession ⇒ Object

closing dyn session



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# File 'lib/dyntool.rb', line 147

def CloseTheSession()
	puts "Closing DYN session"
	@session.CloseSession()
end

#CompareGeo(service) ⇒ Object

compare service geo data of current state vs yaml file



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# File 'lib/dyntool.rb', line 439

def CompareGeo(service)
	@current_data = @session.GetGeoData(service)
	@current_groups = []
	@yaml_groups = []
	@yaml_total_groups = []
	@current_total_groups = []
	@current_data['data']['groups'].each do |group|
		@current_groups << group['name']
	end
	@yaml_groups = @sconf.GetRegions
	@current_total_groups = @current_groups - @yaml_groups
	@yaml_total_groups = @yaml_groups - @current_groups
	if (! @yaml_total_groups.empty?)
		puts "Diffrence in regions list:"
		puts "+Yaml #{@yaml_total_groups}"
	end
	if (! @current_total_groups.empty?)
		puts "Diffrence in regions list:"
		puts "+Current #{@current_total_groups}"
	end
	@current_data['data']['groups'].each do |region|
		@yaml_ips = []
		@current_ips = []
		@yaml_total_ips = []
		@current_total_ips = []
		@name = region['name']
		region['rdata']['a_rdata'].each do |rdata|
			@current_ips << rdata['address']
		end
		@sconf.GetDcsEnabled(@name,service).each do |dc|
			@providers = @sconf.GetDcProviders(dc)
			@providers.each do |provider|
				@sconf.GetIPs(provider).each do |ips|
					ips.each do |ip|
						@yaml_ips << ip
					end
				end
			end
		end
		@current_total_ips = @current_ips - @yaml_ips
		@yaml_total_ips = @yaml_ips - @current_ips
		if ! @yaml_total_ips.empty?
			PrintDiff(@name,@yaml_total_ips,"IP","Yaml")
		end
		if ! @current_total_ips.empty?
			PrintDiff(@name,@current_total_ips,"IP","Current")
		end
		@yaml_countries = []
		@current_countries = []
		@yaml_total_countries = []
		@current_total_countries = []
		region['countries'].each do |country|
			@current_countries << country
		end
		@sconf.GetCountries(@name).each do |country|
			@yaml_countries << country
		end
		@yaml_total_countries = @yaml_countries - @current_countries
		@current_total_countries = @current_countries - @yaml_countries
		if ! @yaml_total_countries.empty?
			PrintDiff(@name,@yaml_total_countries,"Countries","Yaml")
		end
		if ! @current_total_countries.empty?
			PrintDiff(@name,@current_total_countries,"Countries","Current")
		end
		@current_weights = []
		@yaml_weights = []
		region['weight']['a_weight'].each do |weight|
			@current_weights << weight
		end
		@i = 0
		@yaml_ips.each do |ip|
			@yaml_weights << @sconf.GetIpWeight(ip,@name)
		end
		@yaml_weights.each do |weight|
			if weight.to_s != @current_weights[@i].to_s
				puts "##############################################################################"
				puts "There is weight difference in region #{@name}, IP: #{@yaml_ips[@i]}"
				puts "Yaml weight is: #{weight}"
				puts "Current weight is: #{@current_weights[@i]}"
				puts "##############################################################################"
				@i += 1
			end
		end
	end
end

#DisplayUsage ⇒ Object

display script usage



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# File 'lib/dyntool.rb', line 391

def DisplayUsage
	STDOUT.puts <<-EOF
	Usage:

	* add: Adding a new record *

	   add a fqdn(a) ip 				 				 example: dynamo.rb add a mynode.example.com 11.12.13.14
 	   add cname fqdn(a) fqdn(cname) 			    		         example: dynamo.rb add cname mycnamenode.example.com mynode.example.com
	   add txt fqdn(a) "some text" 		 				         example: dynamo.rb add txt mynode.example.com "this is some text"
	   add zone zonename								 example: dynamo.rb add zone example2.com
	
	
	* del: Deleting a node or service *

	   del node fqdn(node) - node can be a,cname,txt,geonode,etc 	                 example: dynamo.rb del node mynode.example.com
	   del service geoservice 							 example: dynamo.rb del service geo17
	
	
	* change: Changing a record *
	
	   change cname cname newfqdn						         example: dynamo.rb change cname mycnamenode.example.com test19.example.com
	
	
	* generate: Generating Geo service from yaml *

	   generate geoservice geonode						         example: dynamo.rb generate geo11 test11.example.com
	
	
	* shift: Shifting traffic from dc or from provider on geo service *

	   shift geoservice from dc/provider to dc/dcs/provider(in same dc)	         example1: dynamo.rb shift geo11 from dc chidc1 to nydc1
											 example2: dynamo.rb shift geo11 from dc chidc1 to nydc1 ladc1
											 example3: dynamo.rb shift geo15 from provider amc_chi to inap_chi
	
	* revert: Reverting a state of geo service to yaml state *
	
	  revert geoservice 								 example: dynamo.rb revert geo15
	
	
	* get: Getting infotmation of geo services, geonodes, cname pointing to geo *

	   get services (get all geo services)						 example: dynamo.rb get services
  	   get node geonode								 example: dynamo.rb get node test1.example.com
	   get cname cname								 example: dynamo.rb get cname mycnamenode.example.com
	EOF
	exit(2)
end

#GetArgsDcs(from, sdcs) ⇒ Object

Get dcs list from arguments



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# File 'lib/dyntool.rb', line 291

def GetArgsDcs(from,sdcs)
	@c = 0
	@dcs = []
	@sdcs = sdcs
	@ARGV.each do |arg|
		@c += 1
		if (@c > 6)
			if (! @sdcs.include? "#{arg}")
				abort("The dcs is not in the configuration dcs list")
			else
				@dcs << "#{arg}"
			end
		end
	end
	if @dcs.include? "#{from}"
		abort("destination dc/s cant include source dc")
	end
	if @dcs.empty?
		abort("List of dcs cant be empty")
	end
	return (@dcs)
end

#GetZone(fqdn) ⇒ Object 



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# File 'lib/dyntool.rb', line 193

def GetZone(fqdn)
	@fqdn_parts = fqdn.split('.')
	@zone = "#{@fqdn_parts[-2]}" + "." + "#{@fqdn_parts[-1]}"
	return(@zone)
end

#OpenTheSession(customer, user, password) ⇒ Object

Opening Session to dyn using creds from the command line



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# File 'lib/dyntool.rb', line 141

def OpenTheSession(customer,user,password)
	puts "opening a session to DYN"
	@session = Restcall.new()
	@session.OpenSession(customer,user,password)
end

#Parameters(type) ⇒ Object

Routing the validation upon the relevant operation



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# File 'lib/dyntool.rb', line 152

def Parameters(type)
	@operate = OperateDyn.new()
	@params = case type
		when "main_operation" then @operations = [ "add", "del", "shift", "generate", "get", "change", "revert" ]
		when "add" then	ValidateAdd()
		when "change" then ValidateChange()
		when "del" then ValidateDel()
		when "shift" then ValidateShift()
		when "generate" then ValidateGenerate()
		when "get" then ValidateGet()
		when "revert" then ValidateRevert()
		else DisplayUsage()
	end
end

#PrintDiff(region, list, name, symbol) ⇒ Object

gets region, list of differencesm, what is different and where and print it out



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# File 'lib/dyntool.rb', line 526

def PrintDiff(region,list,name,symbol)
	puts "Diffrence in #{name} list:"
	puts "Region #{region}:"
	puts "+#{symbol} #{name}:"
	list.each do |item|
		puts "#{item}"
	end
end

#SendEvent(user, suffix, key) ⇒ Object 



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# File 'lib/dyntool.rb', line 112

def SendEvent(user,suffix,key)
	@data = []
	@notify_apps = []	
	@flag = "false"
	@ARGV.each do |arg|
		@data << "#{arg} "
	end
	@data << " #{user}"
	@data << " DNS"
	@dcs = @sconf.GetDcs
	@dcs.each do |dc|
		@result = `echo "Key73512383ghtyA1109 #{@data} " | nc -w 1 event.#{dc}.#{suffix} 7279 2> /dev/null`
		if @result == "accepted"
			@flag = "true"
			break
		end
	end
	if @flag == "false"
		abort("You are not connected to outbrain network / cant send event to logstash, aborting...")
	end
	@graphite_server = @sconf.GetGraphite
	@notify_apps = @sconf.GetNotifyApps
	@notify_apps.each do |app|
		`curl -H "x-api-key:#{key}" -d "deployment[app_name]=#{app}" -d "deployment[description]=External DNS Change" -d "deployment[changelog]=External DNS Change" -d "deployment[user]=#{user}" https://api.newrelic.com/deployments.xml > /dev/null 2>&1`
	end
	@time = Time.now.to_i
	`echo "events.dns.change 1 #{@time}" | nc #{@graphite_server} 2003`
end

#SetArgs=(argv) ⇒ Object 



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# File 'lib/dyntool.rb', line 106

def SetArgs=( argv )
	@ARGV = argv
	@sconf = LoadConfig.new()
	@sconf.SetConfFile 
	@sconf.GetHandler
end

#ValidateAdd ⇒ Object

Check type of record to add, the zone exist, then upon type, check arguments and set the required add operation



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# File 'lib/dyntool.rb', line 216

def ValidateAdd
	ValidateType(@ARGV[1])
	case @ARGV[1]
		when "a" then 	  @zone = GetZone(@ARGV[2])
				  ValidateZone(@zone)
				  ValidateFqdn(@zone,@ARGV[2],"false")
			          ValidateIP(@ARGV[3])
			          @operate.SetOperation("AddARecord")
			          @operate.SetSession(@session)
			          @operate.SetArgs(@zone,@ARGV[2],@ARGV[3])
		when "cname" then @zone = GetZone(@ARGV[2]) 
				  ValidateZone(@zone)
		                  ValidateFqdn(@zone,@ARGV[2],"false")
			          @operate.SetOperation("AddCnameRecord")
			          @operate.SetSession(@session)
				  @operate.SetArgs(@zone,@ARGV[2],@ARGV[3])
		when "txt" then   @zone = GetZone(@ARGV[2])
				  ValidateZone(@zone)
				  ValidateFqdn(@zone,@ARGV[2],"true")
			  	  @operate.SetOperation("AddTxtRecord")
				  @operate.SetSession(@session)
				  @operate.SetArgs(@zone,@ARGV[2],@ARGV[3])
		when "zone" then  @contacts = @sconf.GetContacts
				  @operate.SetOperation("AddZone")
				  @operate.SetSession(@session)
				  @operate.SetArgs(@ARGV[2],@contacts)
	end
end

#ValidateChange ⇒ Object 



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# File 'lib/dyntool.rb', line 244

def ValidateChange
	ValidateType(@ARGV[1])
	@zone = GetZone(@ARGV[2])
	ValidateZone(@zone)
	case @ARGV[1]
		when "cname" then ValidateFqdn(@zone,@ARGV[2],"true")
		   		  @operate.SetOperation("ChangeCnameRecord")
				  @operate.SetSession(@session)
				  @operate.SetArgs(@zone,@ARGV[2],@ARGV[3])
	end
end

#ValidateDC(site) ⇒ Object

validate that site exist in yaml



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# File 'lib/dyntool.rb', line 361

def ValidateDC(site)
	if ! @conf.GetDcs.include? site
		puts "The DC does not exist"
		DisplayUsage()
	end
end

#ValidateDel ⇒ Object

Validating the delete arguments: zone and fqdn exist, in case of service that the service exist



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# File 'lib/dyntool.rb', line 256

def ValidateDel
	case @ARGV[1]
		when "node" then    @zone = GetZone(@ARGV[2])
				    ValidateZone(@zone)
		            	    ValidateFqdn(@zone,@ARGV[2],"true")
		  	            @operate.SetOperation("DeleteNode")
			            @operate.SetSession(@session)
			            @operate.SetArgs(@zone,@ARGV[2])
		when "service" then @services = @session.GetServices()
				    ValidateServiceExist(@services,@ARGV[2])
			            @operate.SetOperation("DeleteService")
			            @operate.SetSession(@session)
			            @operate.SetArgs(@ARGV[2])
		end
end

#ValidateFqdn(zone, node, state) ⇒ Object 



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# File 'lib/dyntool.rb', line 348

def ValidateFqdn(zone,node,state)
	puts "Validating the host: " + node + " in zone: " + zone
	@session.CheckNodes(zone,node,state)
end

#ValidateGenerate ⇒ Object 



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# File 'lib/dyntool.rb', line 328

def ValidateGenerate
	@zone = GetZone(@ARGV[2])
	ValidateServiceFormat(@ARGV[1])
	ValidateZone(@zone)
	ValidateFqdn(@zone,@ARGV[2],"false")
	@operate.SetOperation("GenerateGeoNode")
	@operate.SetSession(@session)
	@operate.SetArgs(@ARGV[1],@zone,@ARGV[2])
end

#ValidateGet ⇒ Object

Validating the get operation, and setting the relevant arguments in OperateDyn object



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# File 'lib/dyntool.rb', line 200

def ValidateGet()
	case @ARGV[1]
		when "services" then @operate.SetOperation("GetServices")
				     @operate.SetSession(@session)
		when "node" then     @operate.SetOperation("GetNodeService")
				     @operate.SetArgs(@ARGV[2])
				     @operate.SetSession(@session)
		when "cname" then    @zone = GetZone(@ARGV[2])
				     ValidateZone(@zone)
				     ValidateFqdn(@zone,@ARGV[2],"true")	
				     @operate.SetOperation("GetCnameService")
				     @operate.SetArgs(@zone,@ARGV[2])
				     @operate.SetSession(@session)
	end
end

#ValidateIP(ip) ⇒ Object

checking that ip is in a valid format



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# File 'lib/dyntool.rb', line 353

def ValidateIP(ip)
	puts "Validating the IP address: " + ip
	if (IPAddr.new(ip) rescue nil).nil?
		puts "IP Address is not valid"
		DisplayUsage()
	end
end

#ValidateParams(arg) ⇒ Object

Checking if the parameter is valid, if not return usage



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# File 'lib/dyntool.rb', line 186

def ValidateParams(arg)
	if ! @operations.include? arg
		DisplayUsage()
	else
	     @valid = arg 
	end
end

#ValidateProvider(srcprovider, dstprovider) ⇒ Object

validate that provider given as argument actually exist in yaml



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# File 'lib/dyntool.rb', line 368

def ValidateProvider(srcprovider,dstprovider)
	@providers = @sconf.GetProviders
	@dcsrc = srcprovider.split('_')
	@dcdst = dstprovider.split('_')
	if ((! @providers.include? srcprovider) || (! @providers.include? dstprovider))
		abort("The Provider does not exist")
	end
	if (srcprovider == dstprovider)
		abort("Source providers cant be same as destination provider")
	end
	if (@dcsrc[1] != @dcdst[1]) 
		abort("Cant shift traffic between providers in different dcs")
	end
end

#ValidateRevert ⇒ Object

validating revert to current yml configuration



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# File 'lib/dyntool.rb', line 167

def ValidateRevert()
	@services = @session.GetServices()
	ValidateServiceExist(@services,@ARGV[1])
	CompareGeo(@ARGV[1])
	AskUser()
	@operate.SetOperation("RevertGeo")
	@operate.SetSession(@session)
	@operate.SetArgs(@ARGV[1])

end

#ValidateServiceExist(services, geo) ⇒ Object

check that service given as argument exist in dyn



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# File 'lib/dyntool.rb', line 322

def ValidateServiceExist(services,geo)
	@services = services
	if ! @services.include? "#{geo}"
		abort("The geo services list does not include the geo entered")
	end
end

#ValidateServiceFormat(service) ⇒ Object 



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# File 'lib/dyntool.rb', line 337

def ValidateServiceFormat(service)
	@service = service
	if ! (@service.match /geo[0][1-9]|geo[1-4][0-9]/)
		puts "service name must match geo(01-49) structure"
		DisplayUsage()
	end
end

#ValidateShift ⇒ Object 



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# File 'lib/dyntool.rb', line 271

def ValidateShift
	@sdcs = @sconf.GetDcs
	@sproviders = @sconf
	@services = @session.GetServices()
	ValidateServiceExist(@services,@ARGV[1])
	#ValidateZone(@ARGV[2])
	@resource = ValidateShiftArgs(@ARGV[2],@ARGV[5],@ARGV[3])
	case @resource
		when "dc" then @dcs = GetArgsDcs(@ARGV[4],@sdcs)
			@dcs_list = @dcs.join("-")
			@operate.SetOperation("ShiftTraffic")
            		        @operate.SetSession(@session)
              			@operate.SetArgs(@ARGV[1],@ARGV[3],@ARGV[4],@dcs_list)
		when "provider" then ValidateProvider(@ARGV[4],@ARGV[6])
			@operate.SetOperation("ShiftTraffic")
            		        @operate.SetSession(@session)
              			@operate.SetArgs(@ARGV[1],@ARGV[3],@ARGV[4],@ARGV[6])
	end
end

#ValidateShiftArgs(from, to, resource) ⇒ Object

checking arguments for shift traffic



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# File 'lib/dyntool.rb', line 314

def ValidateShiftArgs(from,to,resource)
	if (("#{from}" != "from") || ("#{to}" != "to") || (("#{resource}" != "dc") && ("#{resource}" != "provider")))
		DisplayUsage()
	else
		return("#{resource}")
	end
end

#ValidateType(type) ⇒ Object

check that record type is in the allow list



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# File 'lib/dyntool.rb', line 383

def ValidateType(type)
	@types = [ "a", "cname", "txt", "zone" ]
	if ! @types.include? type
		puts "Not a valid record type"
		DisplayUsage()
	end
end

#ValidateZone(zone) ⇒ Object 



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# File 'lib/dyntool.rb', line 344

def ValidateZone(zone)
	puts "Validating zone: " + zone 
	@session.CheckZone(zone)	
end