def describe_mount_targets(self, max_items, file_system_id,
mount_target_id, access_point_id, marker):
"""Describe the mount targets given a mount target ID or a file system ID.
Note that as of this writing access points, and thus access point IDs are not
supported.
https://docs.aws.amazon.com/efs/latest/ug/API_DescribeMountTargets.html
"""
# Restrict the possible corpus of results based on inputs.
if not (bool(file_system_id) ^ bool(mount_target_id)
^ bool(access_point_id)):
raise BadRequest(
"Must specify exactly one mutually exclusive parameter.")
elif file_system_id:
# Handle the case that a file_system_id is given.
if file_system_id not in self.file_systems_by_id:
raise FileSystemNotFound(file_system_id)
corpus = [
mt.info_json() for mt in
self.file_systems_by_id[file_system_id].iter_mount_targets()
]
elif mount_target_id:
if mount_target_id not in self.mount_targets_by_id:
raise MountTargetNotFound(mount_target_id)
# Handle mount target specification case.
corpus = [self.mount_targets_by_id[mount_target_id].info_json()]
else:
# We don't handle access_point_id's yet.
assert False, "Moto does not yet support EFS access points."
# Handle the case that a marker is given. Note that the handling is quite
# different from that in describe_file_systems.
if marker is not None:
if marker not in self.next_markers:
raise BadRequest("Invalid Marker")
corpus_mtids = {m["MountTargetId"] for m in corpus}
marked_mtids = {
m["MountTargetId"]
for m in self.next_markers[marker]
}
mt_ids = corpus_mtids & marked_mtids
corpus = [
self.mount_targets_by_id[mt_id].info_json() for mt_id in mt_ids
]
# Handle the max_items parameter.
mount_targets = corpus[:max_items]
next_marker = self._mark_description(corpus, max_items)
return next_marker, mount_targets
def describe_mount_targets(self, max_items, file_system_id,
mount_target_id, access_point_id, marker):
"""Describe the mount targets given an access point ID, mount target ID or a file system ID.
https://docs.aws.amazon.com/efs/latest/ug/API_DescribeMountTargets.html
"""
# Restrict the possible corpus of results based on inputs.
if not (bool(file_system_id) ^ bool(mount_target_id)
^ bool(access_point_id)):
raise BadRequest(
"Must specify exactly one mutually exclusive parameter.")
if access_point_id:
file_system_id = self.access_points[access_point_id].file_system_id
if file_system_id:
# Handle the case that a file_system_id is given.
if file_system_id not in self.file_systems_by_id:
raise FileSystemNotFound(file_system_id)
corpus = [
mt for mt in
self.file_systems_by_id[file_system_id].iter_mount_targets()
]
elif mount_target_id:
if mount_target_id not in self.mount_targets_by_id:
raise MountTargetNotFound(mount_target_id)
# Handle mount target specification case.
corpus = [self.mount_targets_by_id[mount_target_id]]
# Handle the case that a marker is given. Note that the handling is quite
# different from that in describe_file_systems.
if marker is not None:
if marker not in self.next_markers:
raise BadRequest("Invalid Marker")
corpus_mtids = {m.mount_target_id for m in corpus}
marked_mtids = {
m.mount_target_id
for m in self.next_markers[marker]
}
mt_ids = corpus_mtids & marked_mtids
corpus = [self.mount_targets_by_id[mt_id] for mt_id in mt_ids]
# Handle the max_items parameter.
mount_targets = corpus[:max_items]
next_marker = self._mark_description(corpus, max_items)
return next_marker, mount_targets
def delete_file_system(self, file_system_id):
"""Delete the file system specified by the given file_system_id.
Note that mount targets must be deleted first.
https://docs.aws.amazon.com/efs/latest/ug/API_DeleteFileSystem.html
"""
if file_system_id not in self.file_systems_by_id:
raise FileSystemNotFound(file_system_id)
file_system = self.file_systems_by_id[file_system_id]
if file_system.number_of_mount_targets > 0:
raise FileSystemInUse(
"Must delete all mount targets before deleting file system.")
del self.file_systems_by_id[file_system_id]
self.creation_tokens.remove(file_system.creation_token)
return
def create_mount_target(self,
file_system_id,
subnet_id,
ip_address=None,
security_groups=None):
"""Create a new EFS Mount Target for a given File System to a given subnet.
Note that you can only create one mount target for each availability zone
(which is implied by the subnet ID).
https://docs.aws.amazon.com/efs/latest/ug/API_CreateMountTarget.html
"""
# Get the relevant existing resources
try:
subnet = self.ec2_backend.get_subnet(subnet_id)
except InvalidSubnetIdError:
raise SubnetNotFound(subnet_id)
if file_system_id not in self.file_systems_by_id:
raise FileSystemNotFound(file_system_id)
file_system = self.file_systems_by_id[file_system_id]
# Validate the security groups.
if security_groups:
sg_lookup = {
sg.id
for sg in self.ec2_backend.describe_security_groups()
}
for sg_id in security_groups:
if sg_id not in sg_lookup:
raise SecurityGroupNotFound(sg_id)
# Create the new mount target
mount_target = MountTarget(file_system, subnet, ip_address,
security_groups)
# Establish the network interface.
network_interface = self.ec2_backend.create_network_interface(
subnet, [mount_target.ip_address], group_ids=security_groups)
mount_target.set_network_interface(network_interface)
# Record the new mount target
self.mount_targets_by_id[mount_target.mount_target_id] = mount_target
return mount_target
def describe_file_systems(self,
marker=None,
max_items=10,
creation_token=None,
file_system_id=None):
"""Describe all the EFS File Systems, or specific File Systems.
https://docs.aws.amazon.com/efs/latest/ug/API_DescribeFileSystems.html
"""
# Restrict the possible corpus of resules based on inputs.
if creation_token and file_system_id:
raise BadRequest(
"Request cannot contain both a file system ID and a creation token."
)
elif creation_token:
# Handle the creation token case.
corpus = []
for fs in self.file_systems_by_id.values():
if fs.creation_token == creation_token:
corpus.append(fs)
elif file_system_id:
# Handle the case that a file_system_id is given.
if file_system_id not in self.file_systems_by_id:
raise FileSystemNotFound(file_system_id)
corpus = [self.file_systems_by_id[file_system_id]]
elif marker is not None:
# Handle the case that a marker is given.
if marker not in self.next_markers:
raise BadRequest("Invalid Marker")
corpus = self.next_markers[marker]
else:
# Handle the vanilla case.
corpus = [fs for fs in self.file_systems_by_id.values()]
# Handle the max_items parameter.
file_systems = corpus[:max_items]
next_marker = self._mark_description(corpus, max_items)
return next_marker, file_systems