Class: Cloud66::Utils::VitalSigns

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

Class Method Summary collapse

Class Method Details

.address_info ⇒ Object 



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

def self.address_info
  # AWS special case
  if $config.is_aws
    result = {}
    reported_ip = `/usr/bin/curl -s http://169.254.169.254/latest/meta-data/public-ipv4`
    result[:ext_ipv4] = reported_ip if reported_ip =~ /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
    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]?)$/
    return result
    # GC special case
  elsif $config.is_gc
    result = {}
    external_ip = `/usr/bin/curl -s -H "Metadata-Flavor: Google" http://metadata/computeMetadata/v1/instance/network-interfaces/0/access-configs/0/external-ip`
    result[:ext_ipv4] = external_ip if external_ip =~ /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/
    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]?)$/
    return result
  else
    interfaces_raw = `facter interfaces`
    interfaces = interfaces_raw.split(',').select { |interface| interface =~ /^eth/ }

    # don't have any ip address info
    raise 'no address information' if interfaces.empty?

    # address information
    facter_command = "facter #{interfaces.map { |interface| "ipaddress_#{interface} ipaddress6_#{interface}" }.join(' ')}"
    hash = parse_data(`#{facter_command}`)

    # don't have any ip address info
    raise 'no address information' if hash.empty?

    # return all interface information
    return hash
  end
end

.is_aws? ⇒ Boolean 



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# File 'lib/cloud66_agent/utils/vital_signs.rb', line 46

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
end

.is_gc? ⇒ Boolean 



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# File 'lib/cloud66_agent/utils/vital_signs.rb', line 60

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
end

.parse_data(data) ⇒ Object

parse the data, not using YAML due to YAML parsing issues and JSON output not always working



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# File 'lib/cloud66_agent/utils/vital_signs.rb', line 73

def self.parse_data(data)
  hash = {}
  data.lines.each do |line|
    split = line.split('=>')
    if split.size == 2
      key = split[0]
      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

.system_info ⇒ Object 



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# File 'lib/cloud66_agent/utils/vital_signs.rb', line 5

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