Class: OsCtld::Migration::Commands::Transfer

Inherits:
Base show all
Includes:
OsCtl::Lib::Utils::Log, OsCtl::Lib::Utils::System
Defined in:
lib/osctld/migration/commands/receive_transfer.rb

Instance Attribute Summary

Attributes inherited from Commands::Base

#client, #client_handler, #id, #opts

Instance Method Summary collapse

Methods inherited from Base

handle

Methods inherited from Commands::Base

#base_execute, #call_cmd, #call_cmd!, cmd, #error, #error!, handle, #handled, #indirect?, #initialize, #manipulate, #manipulation_holder, #ok, #progress, #request_stop, run, run!

Constructor Details

This class inherits a constructor from OsCtld::Commands::Base

Instance Method Details

#executeObject



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# File 'lib/osctld/migration/commands/receive_transfer.rb', line 11

def execute
  ct = DB::Containers.find(opts[:id], opts[:pool])
  error!('container not found') unless ct
  error!('the pool is disabled') unless ct.pool.active?

  ct.manipulate(self, block: true) do
    error!('this container is not staged') if ct.state != :staged

    if !ct.migration_log || !ct.migration_log.can_continue?(:transfer)
      error!('invalid migration sequence')
    end

    ct.state = :complete

    # FIXME: the datasets are in some strange state, ZFS thinks they're
    # mounted, but it's not so. First, unmount all of them. Some will report
    # `umount: <mountpoint>: no mount point specified` and some won't be
    # mounted at all, so ignore exit code `1`. Then remount them.
    datasets = ct.datasets
    datasets.reverse.each { |ds| zfs(:umount, '', ds.name, valid_rcs: [1]) }
    datasets.each { |ds| zfs(:mount, '', ds.name) }

    call_cmd!(
      Commands::Container::Start,
      id: ct.id,
      pool: ct.pool.name,
      force: true
    ) if opts[:start]

    ct.migration_log.snapshots.each do |v|
      ds, snap = v
      zfs(:destroy, nil, "#{ds}@#{snap}")
    end

    ct.close_migration_log
  end

  ok
end