Class: Cloud66::Utils::VitalSigns

Inherits:
Object
  • Object
show all
Defined in:
lib/cloud66_agent/utils/vital_signs.rb

Constant Summary collapse

IP_BLOCK_REGEX = 
/\d{,2}|1\d{2}|2[0-4]\d|25[0-5]/
IP_REGEX = 
/\A#{IP_BLOCK_REGEX}\.#{IP_BLOCK_REGEX}\.#{IP_BLOCK_REGEX}\.#{IP_BLOCK_REGEX}\z/

Class Method Summary collapse

Class Method Details

.address_info ⇒ Object 



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
 
# File 'lib/cloud66_agent/utils/vital_signs.rb', line 13

def self.address_info
	result = {}
	# AWS special case
	if $config.is_aws
		reported_ip = `/usr/bin/curl -s http://169.254.169.254/latest/meta-data/public-ipv4`
		result[:ext_ipv4] = reported_ip if reported_ip =~ /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
		reported_ip = `/usr/bin/curl -s http://169.254.169.254/latest/meta-data/local-ipv4`
		result[:int_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]?)$/
		# GC special case
	elsif $config.is_gc
		external_ip = `/usr/bin/curl -s -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip`
		result[:ext_ipv4] = external_ip if external_ip =~ /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
		internal_ip = `/usr/bin/curl -s -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/network-interfaces/0/ip`
		result[:int_ipv4] = internal_ip if internal_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
		interfaces_raw = `facter interfaces`.strip
		interfaces = interfaces_raw.split(',').select { |interface| interface !~ /^lo/ }
		# don't have any ip address info
		unless interfaces.empty?
			# return all interface information
			facter_command = "facter #{interfaces.map { |interface| "ipaddress_#{interface} ipaddress6_#{interface}" }.join(' ')}"
			raw_data = `#{facter_command}`.strip
			result = parse_data(raw_data) rescue {}
		end
	end
	normalised_hash = {}
	result.each do |key, value|
		if value =~ IP_REGEX && value != '127.0.0.1' && value != '127.0.1.1'
			normalised_hash[key] = value
		end
	end
	return normalised_hash
end

.is_aws? ⇒ Boolean

Returns:

  • (Boolean) 


47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
 
# File 'lib/cloud66_agent/utils/vital_signs.rb', line 47

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 false if instance.nil? || instance.empty?

	# now check the external ip to make sure we're not just being routed
	reported_ip = `/usr/bin/curl -s http://169.254.169.254/latest/meta-data/public-ipv4` rescue nil
	return false if reported_ip.nil? || reported_ip.empty?
	return false unless 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]?)$/

	# it is aws  
	return true
rescue => exc
	return false
end

.is_gc? ⇒ Boolean

Returns:

  • (Boolean) 


63
64
65
66
67
68
69
70
71
72
73
 
# File 'lib/cloud66_agent/utils/vital_signs.rb', line 63

def self.is_gc?
	# 6 seconds to find out if this is a AWS image or not!
	external_ip = `/usr/bin/curl --connect-timeout 6 -s -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip` rescue nil
	return false if external_ip.nil? || external_ip.empty?
	return false unless external_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]?)$/

	# it is google cloud
	return true
rescue => exc
	return false
end

.system_info ⇒ Object 



8
9
10
11
 
# File 'lib/cloud66_agent/utils/vital_signs.rb', line 8

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