Contents

module Cloud66
	module Utils
		class VitalSigns

			def self.system_info
				# system info
				return parse_data(`facter`)
			end

			def self.address_info
				# address information
				hash = parse_data(`facter ipaddress ipaddress_eth0 ipaddress6 ipaddress6_eth0`)

				result = {}
				# AWS special case
				if $config.is_aws
					reported_ip = `/usr/bin/curl -s http://169.254.169.254/latest/meta-data/public-ipv4`
					result[:ext_ipv4] = reported_ip if reported_ip =~ /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
				else
					# set general external ip address
					result[:ext_ipv4] = hash['ipaddress']
				end
				result[:int_ipv4] = hash['ipaddress_eth0'] if hash.has_key?('ipaddress_eth0')
				result[:ext_ipv6] = hash['ipaddress6'] if hash.has_key?('ipaddress6')
				result[:int_ipv6] = hash['ipaddress6_eth0'] if hash.has_key?('ipaddress6_eth0')

				# don't have any ip address info
				raise 'no address information' if result.empty? || !result.has_key?(:ext_ipv4)

				# return ip address info
				return result
			end

			def self.is_aws?
				# 6 seconds to find out if this is a AWS image or not!
				instance = `/usr/bin/curl --connect-timeout 6 -s http://169.254.169.254/latest/meta-data/instance-id` rescue nil
				return !instance.nil? && !instance.empty?
			end

			private

			# parse the data, not using YAML due to YAML parsing issues and JSON output not always working
			def self.parse_data(data)
				hash = {}
				data.lines.each do |line|
					split = line.split('=>')
					key = split[0]
					if split.size == 2
						value = split[1]
						unless value.nil?
							value = value.strip
							# exclude empty or long results (like ssh keys)
							if !value.empty? && value.size < 100
								key = key.strip
								hash[key] = value
							end
						end
					end
				end
				return hash
			end
		end
	end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
cloud66_agent-1.1.1	lib/cloud66_agent/utils/vital_signs.rb
cloud66_agent-1.1.1.beta1	lib/cloud66_agent/utils/vital_signs.rb
cloud66_agent-1.1.0	lib/cloud66_agent/utils/vital_signs.rb
cloud66_agent-1.1.0.beta4	lib/cloud66_agent/utils/vital_signs.rb
cloud66_agent-1.1.0.beta3	lib/cloud66_agent/utils/vital_signs.rb
cloud66_agent-1.1.0.beta2	lib/cloud66_agent/utils/vital_signs.rb
cloud66_agent-1.1.0.beta1	lib/cloud66_agent/utils/vital_signs.rb