Class: Puppetserver::Ca::Config::Puppet

Inherits:
Object
  • Object
show all
Defined in:
lib/puppetserver/ca/config/puppet.rb

Overview

Provides an interface for asking for Puppet settings w/o loading Puppet. Includes a simple ini parser that will ignore Puppet’s more complicated conventions.

Constant Summary collapse

TTL_UNITMAP =

How we convert from various units to seconds.

{
  # 365 days isn't technically a year, but is sufficient for most purposes
  "y" => 365 * 24 * 60 * 60,
  "d" => 24 * 60 * 60,
  "h" => 60 * 60,
  "m" => 60,
  "s" => 1
}
TTL_FORMAT =

A regex describing valid formats with groups for capturing the value and units

/^(\d+)(y|d|h|m|s)?$/

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(supplied_config_path = nil) ⇒ Puppet

Returns a new instance of Puppet.



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# File 'lib/puppetserver/ca/config/puppet.rb', line 34

def initialize(supplied_config_path = nil)
  @using_default_location = !supplied_config_path
  @config_path = supplied_config_path || user_specific_conf_file

  @settings = nil
  @errors = []
end

Instance Attribute Details

#errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/puppetserver/ca/config/puppet.rb', line 32

def errors
  @errors
end

#settings ⇒ Object (readonly)

Returns the value of attribute settings.



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# File 'lib/puppetserver/ca/config/puppet.rb', line 32

def settings
  @settings
end

Class Method Details

.parse(config_path) ⇒ Object 



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# File 'lib/puppetserver/ca/config/puppet.rb', line 25

def self.parse(config_path)
  instance = new(config_path)
  instance.load

  return instance
end

Instance Method Details

#default_certname ⇒ Object 



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# File 'lib/puppetserver/ca/config/puppet.rb', line 76

def default_certname
  @certname ||=
    hostname = Facter.value(:hostname)
    domain = Facter.value(:domain)
    if domain and domain != ''
      fqdn = [hostname, domain].join('.')
    else
      fqdn = hostname
    end
    fqdn.chomp('.')
end

#load(cli_overrides = {}) ⇒ Object 



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# File 'lib/puppetserver/ca/config/puppet.rb', line 61

def load(cli_overrides = {})
  if explicitly_given_config_file_or_default_config_exists?
    results = parse_text(File.read(@config_path))
  end

  results ||= {}
  results[:main] ||= {}
  results[:master] ||= {}

  overrides = results[:main].merge(results[:master])
  overrides.merge!(cli_overrides)

  @settings = resolve_settings(overrides).freeze
end

#parse_text(text) ⇒ Object

Parse an inifile formatted String. Only captures word character class keys/section names but nearly any character values (excluding leading whitespace) up to one of whitespace, opening curly brace, or hash sign (Our concern being to capture filesystem path values). Put values without a section into :main.

Return Hash of Symbol section names with Symbol setting keys and String values.



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# File 'lib/puppetserver/ca/config/puppet.rb', line 186

def parse_text(text)
  res = {}
  current_section = :main
  text.each_line do |line|
    case line
    when /^\s*\[(\w+)\].*/
      current_section = $1.to_sym
    when /^\s*(\w+)\s*=\s*([^\s{#]+).*$/
      # Using a Hash with a default key breaks RSpec expectations.
      res[current_section] ||= {}
      res[current_section][$1.to_sym] = $2
    end
  end

  res
end

#resolve_settings(overrides = {}) ⇒ Object

Resolve settings from default values, with any overrides for the specific settings or their dependent settings (ssldir, cadir) taken into account.



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# File 'lib/puppetserver/ca/config/puppet.rb', line 90

def resolve_settings(overrides = {})
  unresolved_setting = /\$[a-z_]+/

  # Returning the key for unknown keys (rather than nil) is required to
  # keep unknown settings in the string for later verification.
  substitutions = Hash.new {|h, k| k }
  settings = {}

  # Order for base settings here matters!
  # These need to be evaluated before we can construct their dependent
  # defaults below
  base_defaults = [
    [:confdir, user_specific_conf_dir],
    [:ssldir,'$confdir/ssl'],
    [:cadir, '$ssldir/ca'],
    [:certdir, '$ssldir/certs'],
    [:certname, default_certname],
    [:server, '$certname'],
    [:masterport, '8140'],
    [:privatekeydir, '$ssldir/private_keys'],
    [:publickeydir, '$ssldir/public_keys'],
  ]

  dependent_defaults = {
    :ca_name => 'Puppet CA: $certname',
    :root_ca_name => "Puppet Root CA: #{SecureRandom.hex(7)}",
    :keylength => 4096,
    :cacert => '$cadir/ca_crt.pem',
    :cakey => '$cadir/ca_key.pem',
    :capub => '$cadir/ca_pub.pem',
    :csr_attributes => '$confdir/csr_attributes.yaml',
    :rootkey => '$cadir/root_key.pem',
    :cacrl => '$cadir/ca_crl.pem',
    :serial => '$cadir/serial',
    :cert_inventory => '$cadir/inventory.txt',
    :ca_server => '$server',
    :ca_port => '$masterport',
    :localcacert => '$certdir/ca.pem',
    :hostcrl => '$ssldir/crl.pem',
    :hostcert => '$certdir/$certname.pem',
    :hostprivkey => '$privatekeydir/$certname.pem',
    :hostpubkey => '$publickeydir/$certname.pem',
    :ca_ttl => '15y',
    :certificate_revocation => 'true',
    :signeddir => '$cadir/signed',
  }

  # This loops through the base defaults and gives each setting a
  # default if the value isn't specified in the config file. Default
  # values given may depend upon the value of a previous base setting,
  # thus the creation of the substitution hash.
  base_defaults.each do |setting_name, default_value|
    substitution_name = '$' + setting_name.to_s
    setting_value = overrides.fetch(setting_name, default_value)
    subbed_value = setting_value.sub(unresolved_setting, substitutions)
    settings[setting_name] = substitutions[substitution_name] = subbed_value
  end

  dependent_defaults.each do |setting_name, default_value|
    setting_value = overrides.fetch(setting_name, default_value)
    settings[setting_name] = setting_value
  end

  # If subject-alt-names are provided, we need to add the certname in addition
  overrides[:dns_alt_names] << ',$certname' if overrides[:dns_alt_names]

  # rename dns_alt_names to subject_alt_names now that we support IP alt names
  settings[:subject_alt_names] = overrides.fetch(:dns_alt_names, "")

  # Some special cases where we need to manipulate config settings:
  settings[:ca_ttl] = munge_ttl_setting(settings[:ca_ttl])
  settings[:certificate_revocation] = parse_crl_usage(settings[:certificate_revocation])
  settings[:subject_alt_names] = Puppetserver::Ca::Utils::Config.munge_alt_names(settings[:subject_alt_names])
  settings[:keylength] = settings[:keylength].to_i

  settings.each do |key, value|
    next unless value.is_a? String
    settings[key] = value.gsub(unresolved_setting, substitutions)
    if match = settings[key].match(unresolved_setting)
      @errors << "Could not parse #{match[0]} in #{value}, " +
                 'valid settings to be interpolated are ' +
                 '$ssldir, $certdir, $cadir, $certname, $server, or $masterport'
    end
  end

  return settings
end

#user_specific_conf_dir ⇒ Object

Return the correct confdir. We check for being root on *nix, else the user path. We do not include a check for running as Adminstrator since non-development scenarios for Puppet Server on Windows are unsupported. Note that Puppet Server runs as the [pe-]puppet user but to start/stop it you must be root.



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# File 'lib/puppetserver/ca/config/puppet.rb', line 48

def user_specific_conf_dir
  @user_specific_conf_dir ||=
    if Puppetserver::Ca::Utils::Config.running_as_root?
      '/etc/puppetlabs/puppet'
    else
      "#{ENV['HOME']}/.puppetlabs/etc/puppet"
    end
end

#user_specific_conf_file ⇒ Object 



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# File 'lib/puppetserver/ca/config/puppet.rb', line 57

def user_specific_conf_file
  user_specific_conf_dir + '/puppet.conf'
end