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#
# Author:: Steven Danna (steve@opscode.com)
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
module ServerBackup
class BackupRestore < Chef::Knife
deps do
require 'chef/knife/core/object_loader'
end
banner "knife backup restore [-d DIR]"
option :backup_dir,
:short => "-d DIR",
:long => "--backup-directory DIR",
:description => "Restore backup data from DIR.",
:default => Chef::Config[:knife][:chef_server_backup_dir] ? Chef::Config[:knife][:chef_server_backup_dir] : File.join(".chef", "chef_server_backup")
def run
ui.warn "This will overwrite existing data!"
ui.warn "Backup is at least 1 day old" if (Time.now - File.atime(config[:backup_dir])) > 86400
ui.confirm "Do you want to restore backup, possibly overwriting exisitng data"
nodes
roles
data_bags
environments
end
def nodes
restore_standard("nodes", Chef::Node)
end
def roles
restore_standard("roles", Chef::Role)
end
def environments
restore_standard("environments", Chef::Environment)
end
def data_bags
ui.msg "Restoring data bags"
loader = Chef::Knife::Core::ObjectLoader.new(Chef::DataBagItem, ui)
dbags = Dir.glob(File.join(config[:backup_dir], "data_bags", '*'))
dbags.each do |bag|
bag_name = File.basename(bag)
ui.msg "Creating data bag #{bag_name}"
rest.post_rest("data", { "name" => bag_name})
dbag_items = Dir.glob(File.join(bag, "*"))
dbag_items.each do |item_path|
item_name = File.basename(item_path, '.json')
ui.msg "Restoring data_bag_item[#{bag_name}::#{item_name}]"
item = loader.load_from("data_bags", bag_name, item_path)
dbag = Chef::DataBagItem.new
dbag.data_bag(bag_name)
dbag.raw_data = item
dbag.save
end
end
end
def restore_standard(component, klass)
loader = Chef::Knife::Core::ObjectLoader.new(klass, ui)
ui.msg "Restoring #{component}"
files = Dir.glob(File.join(config[:backup_dir], component, "*.json"))
files.each do |f|
ui.msg "Updating #{component} from #{f}"
updated = loader.load_from(component, f)
updated.save
end
end
end
end