Class: MobyDerp::SystemConfig

Inherits:
ConfigFile show all
Defined in:
lib/moby_derp/system_config.rb

Instance Attribute Summary collapse

Attributes inherited from ConfigFile

#logger

Instance Method Summary collapse

Constructor Details

#initialize(config_data_or_filename, moby_info, logger) ⇒ SystemConfig

Returns a new instance of SystemConfig.



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# File 'lib/moby_derp/system_config.rb', line 10

def initialize(config_data_or_filename, moby_info, logger)
	@logger = logger

	case config_data_or_filename
	when String
		super(config_data_or_filename)
	when Hash
		@config = stringify_keys(config_data_or_filename)
	else
		raise ArgumentError, "Unsupported type for config_data_or_filename parameter"
	end

	@host_hostname        = @config["host_hostname"] || Socket.gethostname
	@mount_root           = @config["mount_root"]
	@port_whitelist       = stringify_keys(@config["port_whitelist"] || {})
	@network_name         = @config["network_name"] || "bridge"
	@use_host_resolv_conf = @config["use_host_resolv_conf"] || false

	@cpu_count = moby_info["NCPU"]
	# As far as I can tell, the only 32-bit platform Moby supports is
	# armhf; if that turns out to be incorrect, amend the list below.
	@cpu_bits  = %w{armhf}.include?(moby_info["Architecture"]) ? 32 : 64

	unless @mount_root.is_a?(String)
		raise ConfigurationError,
		      "mount_root must be a string"
	end

	unless @mount_root =~ /\A\//
		raise ConfigurationError,
		      "mount_root must be an absolute path"
	end

	unless @network_name.is_a?(String)
		raise ConfigurationError,
		      "network_name must be a string"
	end

	unless [true, false].include?(@use_host_resolv_conf)
		raise ConfigurationError,
		      "use_host_resolv_conf must be true or false"
	end
end

Instance Attribute Details

#cpu_bits ⇒ Object (readonly)

Returns the value of attribute cpu_bits.



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# File 'lib/moby_derp/system_config.rb', line 7

def cpu_bits
  @cpu_bits
end

#cpu_count ⇒ Object (readonly)

Returns the value of attribute cpu_count.



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# File 'lib/moby_derp/system_config.rb', line 7

def cpu_count
  @cpu_count
end

#host_hostname ⇒ Object (readonly)

Returns the value of attribute host_hostname.



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# File 'lib/moby_derp/system_config.rb', line 7

def host_hostname
  @host_hostname
end

#mount_root ⇒ Object (readonly)

Returns the value of attribute mount_root.



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# File 'lib/moby_derp/system_config.rb', line 7

def mount_root
  @mount_root
end

#network_name ⇒ Object (readonly)

Returns the value of attribute network_name.



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# File 'lib/moby_derp/system_config.rb', line 7

def network_name
  @network_name
end

#port_whitelist ⇒ Object (readonly)

Returns the value of attribute port_whitelist.



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# File 'lib/moby_derp/system_config.rb', line 7

def port_whitelist
  @port_whitelist
end

#use_host_resolv_conf ⇒ Object (readonly)

Returns the value of attribute use_host_resolv_conf.



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# File 'lib/moby_derp/system_config.rb', line 7

def use_host_resolv_conf
  @use_host_resolv_conf
end