Source code for

"""The module defines the abstract interface for resolving container images for tool execution."""
from abc import (

import six

from galaxy.util.dictifiable import Dictifiable

[docs]@six.python_2_unicode_compatible @six.add_metaclass(ABCMeta) class ContainerResolver(Dictifiable): """Description of a technique for resolving container images for tool execution.""" # Keys for dictification. dict_collection_visible_keys = ['resolver_type'] def __init__(self, app_info=None, **kwds): """Default initializer for ``ContainerResolver`` subclasses.""" self.app_info = app_info self.resolver_kwds = kwds def _get_config_option(self, key, default=None, config_prefix=None, **kwds): """Look in resolver-specific settings for option and then fallback to global settings. """ global_key = "%s_%s" % (config_prefix, key) if key in kwds: return kwds.get(key) elif self.app_info and hasattr(self.app_info, global_key): return getattr(self.app_info, global_key) else: return default
[docs] @abstractmethod def resolve(self, tool_info): """Find a container matching all supplied requirements for tool. The supplied argument is a :class:`` description of the tool and its requirements. """
@abstractproperty def resolver_type(self): """Short label for the type of container resolution.""" def _container_type_enabled(self, container_description, enabled_container_types): """Return a boolean indicating if the specified container type is enabled.""" return container_description.type in enabled_container_types def __str__(self): return "%s[]" % self.__class__.__name__