Class: LXC::Config

Inherits:

Object

• Object
• LXC::Config

show all

Defined in:

lib/lxc/config.rb

Overview

Constant Summary

Instance Attribute Summary (collapse)

• - (Object) filename

  Returns the value of attribute filename.

• - (Object) networks

  Returns the value of attribute networks.

Instance Method Summary (collapse)

• - (Object) [](key)

  Configuration Key/Value Query.

• - (Object) []=(key, value)

  Configuration Key/Value Assignment.

• - (Hash) clear

  Clear configuration.

• - (Config) initialize(lxc, filename) constructor

  A new instance of Config.

• - (String) inspect

  Provides a concise string representation of the class.

• - (Array) keys

  Configuration keys.

• - (Hash) load

  Loads the specified LXC configuration.

• - (Hash) save

  Saves the specified LXC configuration.

• - (Array) values

  Configuration Values.

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# File 'lib/lxc/config.rb', line 13

def initialize(lxc, filename)
  raise ConfigError, "You must supply a LXC object!" if lxc.nil?
  raise ConfigError, "You must supply a configuration filename!" if filename.nil?

  @lxc      = lxc
  @filename = filename

  self.clear
end

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# File 'lib/lxc/config.rb', line 11

def filename
  @filename
end

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# File 'lib/lxc/config.rb', line 11

def networks
  @networks
end

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# File 'lib/lxc/config.rb', line 91

def [](key)
  @config[key]
end

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# File 'lib/lxc/config.rb', line 84

def []=(key, value)
  @config.merge!(key => [value]) { |k,o,n| k = (o + n) }
end

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# File 'lib/lxc/config.rb', line 56

def clear
  @config   = Hash.new
  @networks = Array.new

  true
end

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# File 'lib/lxc/config.rb', line 97

def inspect
  @config.inspect
end

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# File 'lib/lxc/config.rb', line 68

def keys
  @config.keys
end

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# File 'lib/lxc/config.rb', line 29

def load
  parse_config(@lxc.exec("cat #{@filename} 2>/dev/null"))
end

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# File 'lib/lxc/config.rb', line 38

def save
  use_sudo = (@lxc.runner.use_sudo ? 'sudo ' : nil)

  script = Array.new
  script << "cat <<EOF | #{use_sudo}tee #{@filename}"
  script << build_config
  script << "EOF"
  script = script.join("\n")

  @lxc.exec(script)
end

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# File 'lib/lxc/config.rb', line 77

def values
  @config.values
end