def __init__(self, reactor, rootfs, conf):
""" Initialize the Container.
@param reactor: Reference to the twisted::reactor
@type reactor: twisted::reactor
@param rootfs: Filesystem path of the root directory of the
container filesystem.
@type rootfs: str
@param conf: Filesystem path of folder where configuration
files for the container should be stored.
@type conf: str
"""
self._reactor = reactor
self._rootfs = rootfs
self._conf = pjoin(conf, 'config')
self._fstab = pjoin(conf, 'fstab')
pathUtil.checkPath(conf, 'Container Configuration')
if os.path.exists(self._conf):
raise ValueError('There is already a config file in given '
'configuration folder.')
if os.path.exists(self._fstab):
raise ValueError('There is already a fstab file in given '
'configuration folder.')
self._fstabExt = []
def __init__(self, reactor):
""" Initialize the Container Manager.
@raise: ValueError, if the paths/names are invalid.
"""
super(ContainerManager, self).__init__(reactor)
self._relayID = None
# Keys: Container tag
# Values: bool (True = ok; False = delete again)
self._pending = {}
self._rootfs = self._ROOTFS
self._confDir = self._CONF_DIR
self._dataDir = self._DATA_DIR
self._srcDir = self._ROOT_SRC_DIR
# Validate directory paths
pathUtil.checkPath(self._confDir, 'Configuration')
pathUtil.checkPath(self._dataDir, 'Data')
pathUtil.checkPath(self._rootfs, 'Container file system')
pathUtil.checkPath(self._srcDir, 'RCE source')
# Validate executable paths
pathUtil.checkExe(self._srcDir, 'environment.py')
pathUtil.checkExe(self._srcDir, 'launcher.py')
# Process ROS package paths
self._pkgDir = pathUtil.processPackagePaths(self._ROOT_PKG_DIR)
for _, path in self._pkgDir:
os.mkdir(os.path.join(self._rootfs, path))