def find_resources_to_unmanage(resource_el): """ Get resources to unmanage to unmanage the specified resource succesfully etree resource_el -- resource element """ # resource hierarchy - specified resource - what to return # a primitive - the primitive - the primitive # # a cloned primitive - the primitive - the primitive # a cloned primitive - the clone - the primitive # The resource will run on all nodes after unclone. However that doesn't # seem to be bad behavior. Moreover, if monitor operations were disabled, # they wouldn't enable on unclone, but the resource would become managed, # which is definitely bad. # # a primitive in a group - the primitive - the primitive # Otherwise all primitives in the group would become unmanaged. # a primitive in a group - the group - all primitives in the group # If only the group was set to unmanaged, setting any primitive in the # group to managed would set all the primitives in the group to managed. # If the group as well as all its primitives were set to unmanaged, any # primitive added to the group would become unmanaged. This new primitive # would become managed if any original group primitive becomes managed. # Therefore changing one primitive influences another one, which we do # not want to happen. # # a primitive in a cloned group - the primitive - the primitive # a primitive in a cloned group - the group - all primitives in the group # See group notes above # a primitive in a cloned group - the clone - all primitives in the group # See clone notes above # # a bundled primitive - the primitive - the primitive # a bundled primitive - the bundle - the bundle and the primitive # We need to unmanage implicit resources create by pacemaker and there is # no other way to do it than unmanage the bundle itself. # Since it is not possible to unbundle a resource, the concers described # at unclone don't apply here. However to prevent future bugs, in case # unbundling becomes possible, we unmanage the primitive as well. # an empty bundle - the bundle - the bundle # There is nothing else to unmanage. if is_bundle(resource_el): in_bundle = get_bundle_inner_resource(resource_el) return ( [resource_el, in_bundle] if in_bundle is not None else [resource_el] ) if is_any_clone(resource_el): resource_el = get_clone_inner_resource(resource_el) if is_group(resource_el): return get_group_inner_resources(resource_el) if is_primitive(resource_el): return [resource_el] return []
def find_primitives(resource_el): """ Get list of primitives contained in a given resource etree resource_el -- resource element """ if is_bundle(resource_el): in_bundle = get_bundle_inner_resource(resource_el) return [in_bundle] if in_bundle is not None else [] if is_any_clone(resource_el): resource_el = get_clone_inner_resource(resource_el) if is_group(resource_el): return get_group_inner_resources(resource_el) if is_primitive(resource_el): return [resource_el] return []
def get_inner_resources(resource_el: _Element) -> List[_Element]: """ Return list of inner resources (direct descendants) of a resource specified as resource_el. Example: for clone containing a group, this function will return only group and not resource inside the group resource_el -- resource element to get its inner resources """ if is_bundle(resource_el): in_bundle = get_bundle_inner_resource(resource_el) return [in_bundle] if in_bundle is not None else [] if is_any_clone(resource_el): return [get_clone_inner_resource(resource_el)] if is_group(resource_el): return get_group_inner_resources(resource_el) return []
def find_resources_to_enable(resource_el): """ Get resources to enable in order to enable specified resource succesfully etree resource_el -- resource element """ if is_bundle(resource_el): # bundles currently cannot be disabled - pcmk does not support that # inner resources are supposed to be managed separately return [] if is_any_clone(resource_el): return [resource_el, get_clone_inner_resource(resource_el)] to_enable = [resource_el] parent = resource_el.getparent() if is_any_clone(parent): to_enable.append(parent) return to_enable
def find_resources_to_unmanage(resource_el): """ Get resources to unmanage to unmanage the specified resource succesfully etree resource_el -- resource element """ # resource hierarchy - specified resource - what to return # a primitive - the primitive - the primitive # # a cloned primitive - the primitive - the primitive # a cloned primitive - the clone - the primitive # The resource will run on all nodes after unclone. However that doesn't # seem to be bad behavior. Moreover, if monitor operations were disabled, # they wouldn't enable on unclone, but the resource would become managed, # which is definitely bad. # # a primitive in a group - the primitive - the primitive # Otherwise all primitives in the group would become unmanaged. # a primitive in a group - the group - all primitives in the group # If only the group was set to unmanaged, setting any primitive in the # group to managed would set all the primitives in the group to managed. # If the group as well as all its primitives were set to unmanaged, any # primitive added to the group would become unmanaged. This new primitive # would become managed if any original group primitive becomes managed. # Therefore changing one primitive influences another one, which we do # not want to happen. # # a primitive in a cloned group - the primitive - the primitive # a primitive in a cloned group - the group - all primitives in the group # See group notes above # a primitive in a cloned group - the clone - all primitives in the group # See clone notes above # # a bundled primitive - the primitive - the primitive # a bundled primitive - the bundle - nothing # bundles currently cannot be set as unmanaged - pcmk does not support that # an empty bundle - the bundle - nothing # bundles currently cannot be set as unmanaged - pcmk does not support that if is_any_clone(resource_el): resource_el = get_clone_inner_resource(resource_el) if is_group(resource_el): return get_group_inner_resources(resource_el) if is_primitive(resource_el): return [resource_el] return []
def find_resources_to_enable(resource_el): """ Get resources to enable in order to enable specified resource succesfully etree resource_el -- resource element """ if is_bundle(resource_el): to_enable = [resource_el] in_bundle = get_bundle_inner_resource(resource_el) if in_bundle is not None: to_enable.append(in_bundle) return to_enable if is_any_clone(resource_el): return [resource_el, get_clone_inner_resource(resource_el)] to_enable = [resource_el] parent = resource_el.getparent() if is_any_clone(parent) or is_bundle(parent): to_enable.append(parent) return to_enable