update of ec2-cost-calculate.rb to include ability to summarize by ASG
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@ -2,7 +2,7 @@
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access_key = ""
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secret_key = ""
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#default options are given below - user input can override any one of these
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options = {:fileoutputlocation => "~/ec-cost-calculate-result.txt", :output => "screen",:seperator => ",",:region => "all",:period => "hour",:multiplier => 1,:status => :running, :awscredentialsfile => "", :awscredentialssource => "env", :user_selected_region => "all" }
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options = {:fileoutputlocation => "~/ec-cost-calculate-result.txt", :output => "screen",:seperator => ",",:region => "all",:period => "hour",:multiplier => 1,:status => :running, :awscredentialsfile => "", :awscredentialssource => "env", :user_selected_region => "all", :mode => "byinstance" }
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#ec2cc_resources holds resources needed by ec2_cost_calculate, such as the output file handle
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ec2cc_resources = {}
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#list of valid statuses for an instance - will be used to validate user input
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@ -58,6 +58,30 @@ class Region_Resource
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end
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end
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#CostASG - will contain one cost object per Auto Scaling Group
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class CostASG
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attr_accessor :name, :region, :instance_type,:total_instance_count, :total_cost
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def initialize(name,region,instance_type,total_instance_count,total_cost)
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@name = name
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@region = region
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@instance_type = instance_type
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@total_instance_count = total_instance_count
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@total_cost = total_cost
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end
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def output (options,asg_cost_object,ec2cc_resources)
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outputstring = "#{asg_cost_object.name}","#{options[:seperator]}","#{asg_cost_object.region}","#{options[:seperator]}","#{asg_cost_object.instance_type}","#{options[:seperator]}","#{asg_cost_object.total_instance_count}","#{options[:seperator]}","#{asg_cost_object.total_cost}","\n"
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case options[:output]
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when "file"
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ec2cc_resources[:ec2_output_file_handle].print outputstring
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when "screen"
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print outputstring
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else
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$stderr.print "error with output.\n"
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exit 1
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end
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end
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end
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## ec2-cost-calculate ##
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## Initialization of ec2-cost-calculate
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#sets program name
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@ -140,6 +164,17 @@ optparse = OptionParser.new do |opts|
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exit 64
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end
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end
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#mode - allowing either "byinstance" - in which the cost of each instance is listed or "byASG" in which the cost of each ASG is listed
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opts.on("-m","--mode MODE","mode in which ", program_name, " runs. Accepts values \"byinstance\" or \"byASG.\" Default value is \"byinstance\".") do |mode|
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#forces option to lowercase - easier to evaluate variables when always lowercase
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mode.downcase!
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if (mode == "byinstance" || mode == "byasg")
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options[:mode] = mode
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else
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$stderr.print "You must specifiy a mode such as \"byinstance\" or \"byasg\". You specified \"", mode, ".\"\n"
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exit 64
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end
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end
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#options processing for aws credential file input
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opts.on("--awscredentialfile CREDENTIAILFILE","path to AWS credential file. This is required if the path to an AWS credential file is not provided by an environment variable.") do |awscredentialfile|
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options[:awscredentialfile] = awscredentialfile
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@ -186,6 +221,8 @@ aws_interface = AWS::EC2.new( :access_key_id => access_key, :secret_access_key =
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instance_collection = {};
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#creates a collection (currently, an array) of all regions resources
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region_collection = {};
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#creates a collection (currently, an array) of all asg costs objects
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asg_cost_collection = {};
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#regions_aws is a list of all current Amazon regions
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regions_array = aws_interface.regions.map
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#file expansion and validation done outside of optparse
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@ -253,6 +290,16 @@ AWS.memoize do
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ec2_object.asg = instance.tags["aws:autoscaling:groupName"]
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#gets price using Instance.price method
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ec2_object.price = ec2_object.get_price(ec2_object.instance_type,ec2_object.region,ec2_object.platform,price_table,options[:multiplier])
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#if the currently evaluated instance has an asg that is already in the asg_cost_collection, add the price of the current object to the asg_cost_collection.total_cost attribute, else create a new asg_cost_object and add to the asg_cost_collection
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if asg_cost_collection.include?(ec2_object.asg)
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asg_cost_collection[ec2_object.asg].total_instance_count += 1
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asg_cost_collection[ec2_object.asg].total_cost += ec2_object.price
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else
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asg_cost_object = CostASG.new(ec2_object.asg,ec2_object.region,ec2_object.instance_type,1,ec2_object.price)
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asg_cost_collection[ec2_object.asg] = asg_cost_object
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end
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#places each ec2_object into the instance_collection if the status of instance matches user requested status
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if options[:status] == instance.status
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instance_collection[instance.id] = ec2_object
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@ -261,7 +308,13 @@ AWS.memoize do
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end
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end
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#Prints Header
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headerstring = "instanceid","#{options[:seperator]}","region","#{options[:seperator]}","platform","#{options[:seperator]}","status","#{options[:seperator]}","cost","#{options[:seperator]}","name","#{options[:seperator]}","autoscalinggroup","\n"
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case options[:mode]
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when "byinstance"
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headerstring = "instanceid","#{options[:seperator]}","region","#{options[:seperator]}","platform","#{options[:seperator]}","status","#{options[:seperator]}","cost","#{options[:seperator]}","name","#{options[:seperator]}","autoscalinggroup","\n"
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when "byasg"
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headerstring = "asgname","#{options[:seperator]}","region","#{options[:seperator]}","instanceplatform","#{options[:seperator]}","instancecount","#{options[:seperator]}","asgcost","\n"
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end
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case options[:output]
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when "screen"
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@ -270,7 +323,13 @@ case options[:output]
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ec2cc_resources[:ec2_output_file_handle].print headerstring
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end
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#Prints Output for each EC2 object
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instance_collection.each do |ec2_instance_id,ec2_instance_object|
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ec2_instance_object.output(options,ec2_instance_object,ec2cc_resources)
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end
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case options[:mode]
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when "byinstance"
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instance_collection.each do |ec2_instance_id,ec2_instance_object|
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ec2_instance_object.output(options,ec2_instance_object,ec2cc_resources)
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end
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when "byasg"
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asg_cost_collection.each do |asg_cost_object_asg,asg_cost_object|
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asg_cost_object.output(options,asg_cost_object,ec2cc_resources)
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end
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end
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