Class: Kondate::PropertyBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/kondate/property_builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(host) ⇒ PropertyBuilder

Returns a new instance of PropertyBuilder.



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# File 'lib/kondate/property_builder.rb', line 9

def initialize(host)
  @host = host
end

Instance Attribute Details

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/kondate/property_builder.rb', line 7

def host
  @host
end

Instance Method Details

#environment ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 13

def environment
  @environment ||=
    begin
      Config.host_plugin.get_environment(@host) || ''
    rescue => e
      $stderr.puts "cannot get environment for host:#{@host}, #{e.class} #{e.message}"
      ''
    end
end

#environment_file(environment) ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 88

def environment_file(environment)
  File.join(Config.environments_properties_dir, "#{environment}.yml")
end

#filter_roles(filters) ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 47

def filter_roles(filters)
  return self.roles if filters.nil? or filters.empty?
  filters = Array(filters).map {|filter| filter.gsub(':', '-') }
  if roles.empty? # maybe, development (vagrant) env
    @roles = filters # append specified roles
    @roles.each do |role|
      file = role_file(role)
      unless File.exist?(file)
        $stderr.puts "#{file} does not exist, possibly typo?"
        exit(1)
      end
    end
  else
    if (filters - roles).size > 0
      $stderr.puts "cannot specify #{(filters - roles).first}"
      exit(1)
    end
    unless filters.empty?
      # filter out for production env
      @roles = self.roles & filters
    end
  end
  @roles
end

#get_content(yaml_file) ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 96

def get_content(yaml_file)
  content = File.exist?(yaml_file) ? YAML.load_file(yaml_file) : {}
  content.is_a?(Hash) ? content : {}
end

#hostinfo ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 33

def hostinfo
  @hostinfo ||=
    begin
      if Config.host_plugin.respond_to?(:get_hostinfo)
        Config.host_plugin.get_hostinfo(@host) || {}
      else
        {}
      end
    rescue => e
      $stderr.puts "cannot get hostinfo for host:#{@host}, #{e.class} #{e.message}"
      {}
    end
end

#install(role, filter_recipes = nil) ⇒ Object

Generate tmp node file (for each role)

{ environment: environment, role: role, roles: roles } +
environment_file + secret_environment_file +
role_file + secret_role_file +
node_file + node_secret_file

This file is automatically created and removed



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# File 'lib/kondate/property_builder.rb', line 109

def install(role, filter_recipes = nil)
  files = [
    environment_file(environment),
    secret_environment_file(environment),
    role_file(role),
    secret_role_file(role),
    node_file,
    secret_node_file,
  ].compact.select {|f| File.readable?(f) }

  property = HashExt.new.deep_merge!({
    'environment' => environment,
    'role'        => role,
    'roles'       => roles,
    'hostinfo'    => hostinfo,
  })
  files.each do |file|
    property.deep_merge!(get_content(file))
  end
  property['attributes'] ||= {}

  # filter out the recipe
  if filter_recipes and !filter_recipes.empty?
    property['attributes'].keys.each do |key|
      property['attributes'].delete(key) unless filter_recipes.include?(key)
    end
  end

  if property['attributes'].empty?
    PropertyFile.new(nil, files)
  else
    fp = Tempfile.create("kondate_")
    YAML.dump(property.to_h, fp)
    fp.close
    PropertyFile.new(fp.path, files)
  end
end

#node_file ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 72

def node_file
  File.join(Config.nodes_properties_dir, "#{@host}.yml")
end

#role_file(role) ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 80

def role_file(role)
  RoleFile.explore(Config.roles_properties_dir, role, ".yml")
end

#roles ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 23

def roles
  @roles ||=
    begin
      Config.host_plugin.get_roles(@host) || []
    rescue => e
      $stderr.puts "cannot get roles for host:#{@host}, #{e.class} #{e.message}"
      []
    end
end

#secret_environment_file(environment) ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 92

def secret_environment_file(environment)
  File.join(Config.secret_environments_properties_dir, "#{environment}.yml")
end

#secret_node_file ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 76

def secret_node_file
  File.join(Config.secret_nodes_properties_dir, "#{@host}.yml")
end

#secret_role_file(role) ⇒ Object 



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# File 'lib/kondate/property_builder.rb', line 84

def secret_role_file(role)
  RoleFile.explore(Config.secret_roles_properties_dir, role, ".yml")
end