Class: Bosh::Agent::Message::MountDisk
- Inherits:
-
Base
show all
- Defined in:
- lib/bosh_agent/message/mount_disk.rb
Class Method Summary
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Instance Method Summary
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Methods inherited from Base
#base_dir, #handler_error, #logger, #logs_dir, #settings, #store_migration_target, #store_path
Constructor Details
#initialize(args) ⇒ MountDisk
Returns a new instance of MountDisk.
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# File 'lib/bosh_agent/message/mount_disk.rb', line 11
def initialize(args)
@cid = args.first
end
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Class Method Details
.long_running? ⇒ Boolean
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# File 'lib/bosh_agent/message/mount_disk.rb', line 98
def self.long_running?; true; end
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.process(args) ⇒ Object
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# File 'lib/bosh_agent/message/mount_disk.rb', line 7
def self.process(args)
new(args).mount
end
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Instance Method Details
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# File 'lib/bosh_agent/message/mount_disk.rb', line 15
def mount
if Bosh::Agent::Config.configure
update_settings
logger.info("MountDisk: #{@cid} - #{settings['disks'].inspect}")
setup_disk
end
end
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#mount_persistent_disk(partition) ⇒ Object
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# File 'lib/bosh_agent/message/mount_disk.rb', line 81
def mount_persistent_disk(partition)
store_mountpoint = File.join(base_dir, 'store')
if Pathname.new(store_mountpoint).mountpoint?
logger.info("Mounting persistent disk store migration target")
mountpoint = File.join(base_dir, 'store_migraton_target')
else
logger.info("Mounting persistent disk store")
mountpoint = store_mountpoint
end
FileUtils.mkdir_p(mountpoint)
FileUtils.chmod(0700, mountpoint)
Mounter.new(logger).mount(partition, mountpoint)
end
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#setup_disk ⇒ Object
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# File 'lib/bosh_agent/message/mount_disk.rb', line 28
def setup_disk
disk = Bosh::Agent::Config.platform.lookup_disk_by_cid(@cid)
partition = "#{disk}1"
logger.info("setup disk settings: #{settings.inspect}")
read_disk_attempts = 300
read_disk_attempts.downto(0) do |n|
begin
disk_data = File.read(disk, 512)
if disk_data == "\x00"*512
logger.info("Found blank disk #{disk}")
else
logger.info("Disk has partition table")
logger.info(`sfdisk -Llq #{disk} 2> /dev/null`)
end
break
rescue => e
logger.info("Re-trying reading from #{disk}")
end
if n == 0
raise Bosh::Agent::MessageHandlerError, "Unable to read from new disk"
end
sleep 1
end
if File.blockdev?(disk) && DiskUtil.ensure_no_partition?(disk, partition)
full_disk = ",,L\n"
logger.info("Partitioning #{disk}")
Bosh::Agent::Util.partition_disk(disk, full_disk)
mke2fs_options = ["-t ext4", "-j"]
mke2fs_options << "-E lazy_itable_init=1" if Bosh::Agent::Util.lazy_itable_init_enabled?
`/sbin/mke2fs #{mke2fs_options.join(" ")} #{partition}`
unless $?.exitstatus == 0
raise Bosh::Agent::MessageHandlerError, "Failed create file system (#{$?.exitstatus})"
end
elsif File.blockdev?(partition)
logger.info("Found existing partition on #{disk}")
else
raise Bosh::Agent::MessageHandlerError, "Unable to format #{disk}"
end
mount_persistent_disk(partition)
{}
end
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