Class: OsCtld::Commands::Container::MapMode

Inherits:
Logged
  • Object
show all
Includes:
OsCtl::Lib::Utils::Log, OsCtl::Lib::Utils::System
Defined in:
lib/osctld/commands/container/map_mode.rb

Instance Method Summary collapse

Methods inherited from Logged

#base_execute

Instance Method Details

#execute(ct) ⇒ Object 



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# File 'lib/osctld/commands/container/map_mode.rb', line 15

def execute(ct)
  if !Container::MAP_MODES.include?(opts[:map_mode])
    error!('invalid map mode')
  elsif ct.map_mode == opts[:map_mode]
    return ok
  end

  manipulate(ct) do
    error!('container is running') if ct.running?

    if ct.map_mode == 'native' && opts[:map_mode] == 'zfs'
      native_to_zfs(ct)
    elsif ct.map_mode == 'zfs' && opts[:map_mode] == 'native'
      zfs_to_native(ct)
    end

    ct.map_mode = opts[:map_mode]

    ok
  end
end

#find ⇒ Object 



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# File 'lib/osctld/commands/container/map_mode.rb', line 10

def find
  ct = DB::Containers.find(opts[:id], opts[:pool])
  ct || error!('container not found')
end

#native_to_zfs(ct) ⇒ Object (protected) 



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# File 'lib/osctld/commands/container/map_mode.rb', line 39

def native_to_zfs(ct)
  datasets = ct.datasets

  datasets.reverse_each do |ds|
    progress("Unmounting dataset #{ds.relative_name}")
    zfs(:unmount, nil, ds, valid_rcs: [1])
  end

  datasets.each do |ds|
    progress("Setting UID/GID mapping of #{ds.relative_name}")
    zfs(
      :set,
      "uidmap=\"#{ct.uid_map.map(&:to_s).join(',')}\" " \
      "gidmap=\"#{ct.gid_map.map(&:to_s).join(',')}\"",
      ds
    )

    progress("Remounting dataset #{ds.relative_name}")
    zfs(:mount, nil, ds)
  end
end

#zfs_to_native(ct) ⇒ Object (protected) 



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# File 'lib/osctld/commands/container/map_mode.rb', line 61

def zfs_to_native(ct)
  datasets = ct.datasets

  datasets.reverse_each do |ds|
    progress("Unmounting dataset #{ds.relative_name}")
    zfs(:unmount, nil, ds, valid_rcs: [1])
  end

  datasets.each do |ds|
    progress("Unsetting UID/GID mapping of #{ds.relative_name}")
    zfs(
      :set,
      'uidmap=none gidmap=none',
      ds
    )

    progress("Remounting dataset #{ds.relative_name}")
    zfs(:mount, nil, ds)
  end
end