Class: KnifeSharp::SharpBackup

Inherits:
Chef::Knife
  • Object
show all
Defined in:
lib/chef/knife/sharp-backup.rb

Instance Method Summary collapse

Instance Method Details

#backup ⇒ Object 



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# File 'lib/chef/knife/sharp-backup.rb', line 46

def backup
  timestamp = Time.now.to_i

  unless  @cfg["global"]["backupdir"]
    ui.error "You need to add global/backupdir to your config file"
    exit 1
  end

  backup_path = @cfg["global"]["backupdir"] + "/backup-#{timestamp}"

  if File.exist?(backup_path)
    ui.error "Backup path (#{backup_path}) exists. Will not overwrite."
    exit 1
  end

  ui.msg("Backing up roles")
  FileUtils.mkdir_p(backup_path + "/roles")
  Chef::Role.list.keys.each do |role|
    begin
      remote_role = Chef::Role.load(role)
      File.open(backup_path + "/roles/#{role}.json", "w") do |file|
        file.puts JSON.pretty_generate(remote_role)
      end
    rescue Exception => e
      ui.error "Unable to dump #{role} role (#{e.message})"
    end
  end

  ui.msg("Backing up environments")
  FileUtils.mkdir_p(backup_path + "/environments")
  Chef::Environment.list.keys.each do |environment|
    begin
      env = Chef::Environment.load(environment)
      File.open(backup_path + "/environments/#{environment}.json", "w") do |file|
        file.puts JSON.pretty_generate(env)
      end
    rescue Exception => e
      ui.error "Unable to dump #{environment} environment (#{e.message})"
    end
  end

  ui.msg("Backing up databags")
  FileUtils.mkdir_p(backup_path + "/databags")
  Chef::DataBag.list.keys.each do |bag|
    Dir.mkdir(backup_path + "/databags/" + bag)
    Chef::DataBag.load(bag).keys.each do |item|
      begin
        data = Chef::DataBagItem.load(bag,item)
        File.open(backup_path + "/databags/#{bag}/#{item}.json", "w") do |file|
          file.puts JSON.pretty_generate(data)
        end
      rescue Exception => e
        ui.error "Unable to dump item #{item} from databag #{bag} (#{e.message})"
      end
    end
  end

end

#run ⇒ Object 



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# File 'lib/chef/knife/sharp-backup.rb', line 14

def run
  setup()
  backup()
end

#setup ⇒ Object 



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# File 'lib/chef/knife/sharp-backup.rb', line 19

def setup
  # Sharp config
  cfg_files = [ "/etc/sharp-config.yml", "~/.chef/sharp-config.yml" ]
  loaded = false
  cfg_files.each do |cfg_file|
    begin
      @cfg = YAML::load_file(File.expand_path(cfg_file))
      loaded = true
    rescue Exception => e
      ui.error "Error on loading config : #{e.inspect}" if config[:debug]
    end
  end
  unless loaded == true
    ui.error "config could not be loaded ! Tried the following files : #{cfg_files.join(", ")}"
    exit 1
  end

  # Knife config
  if (ENV['HOME'] && File.exist?(File.join(ENV['HOME'], '.chef', 'knife.rb')))
    Chef::Config.from_file(File.join(ENV['HOME'], '.chef', 'knife.rb'))
  else
    ui.error "Cannot find knife.rb config file"
    exit 1
  end

end