feat: Implementation of memorydb api (#8108)

docs/docs/services/memorydb.rst

@@ -0,0 +1,57 @@
+.. _implementedservice_memorydb:
+
+.. |start-h3| raw:: html
+
+    <h3>
+
+.. |end-h3| raw:: html
+
+    </h3>
+
+========
+memorydb
+========
+
+.. autoclass:: moto.memorydb.models.MemoryDBBackend
+
+|start-h3| Implemented features for this service |end-h3|
+
+- [ ] batch_update_cluster
+- [ ] copy_snapshot
+- [ ] create_acl
+- [X] create_cluster
+- [ ] create_parameter_group
+- [X] create_snapshot
+- [X] create_subnet_group
+- [ ] create_user
+- [ ] delete_acl
+- [X] delete_cluster
+- [ ] delete_parameter_group
+- [X] delete_snapshot
+- [X] delete_subnet_group
+- [ ] delete_user
+- [ ] describe_acls
+- [X] describe_clusters
+- [ ] describe_engine_versions
+- [ ] describe_events
+- [ ] describe_parameter_groups
+- [ ] describe_parameters
+- [ ] describe_reserved_nodes
+- [ ] describe_reserved_nodes_offerings
+- [ ] describe_service_updates
+- [X] describe_snapshots
+- [X] describe_subnet_groups
+- [ ] describe_users
+- [ ] failover_shard
+- [ ] list_allowed_node_type_updates
+- [X] list_tags
+- [ ] purchase_reserved_nodes_offering
+- [ ] reset_parameter_group
+- [X] tag_resource
+- [X] untag_resource
+- [ ] update_acl
+- [X] update_cluster
+- [ ] update_parameter_group
+- [ ] update_subnet_group
+- [ ] update_user
+

moto/backend_index.py

@@ -116,6 +116,7 @@
     ("mediapackage", re.compile("https?://mediapackage\\.(.+)\\.amazonaws.com")),
     ("mediastore", re.compile("https?://mediastore\\.(.+)\\.amazonaws\\.com")),
     ("mediastoredata", re.compile("https?://data\\.mediastore\\.(.+)\\.amazonaws.com")),
+    ("memorydb", re.compile("https?://memory-db\\.(.+)\\.amazonaws\\.com")),
     (
         "meteringmarketplace",
         re.compile("https?://metering.marketplace.(.+).amazonaws.com"),

moto/backends.py

@@ -92,6 +92,7 @@
     from moto.mediapackage.models import MediaPackageBackend
     from moto.mediastore.models import MediaStoreBackend
     from moto.mediastoredata.models import MediaStoreDataBackend
+    from moto.memorydb.models import MemoryDBBackend
     from moto.meteringmarketplace.models import MeteringMarketplaceBackend
     from moto.moto_api._internal.models import MotoAPIBackend
     from moto.mq.models import MQBackend
@@ -268,6 +269,7 @@ def get_service_from_url(url: str) -> Optional[str]:
     "Literal['medialive']",
     "Literal['mediapackage']",
     "Literal['mediastore']",
+    "Literal['memorydb']",
     "Literal['mediastore-data']",
     "Literal['meteringmarketplace']",
     "Literal['moto_api']",
@@ -564,6 +566,8 @@ def get_backend(
     name: "Literal['mediastore-data']",
 ) -> "BackendDict[MediaStoreDataBackend]": ...
 @overload
+def get_backend(name: "Literal['memorydb']") -> "BackendDict[MemoryDBBackend]": ...
+@overload
 def get_backend(
     name: "Literal['meteringmarketplace']",
 ) -> "BackendDict[MeteringMarketplaceBackend]": ...

moto/memorydb/__init__.py

@@ -0,0 +1 @@
+from .models import memorydb_backends  # noqa: F401

moto/memorydb/exceptions.py

@@ -0,0 +1,59 @@
+"""Exceptions raised by the memorydb service."""
+
+from typing import List
+
+from moto.core.exceptions import JsonRESTError
+
+
+class MemoryDBClientError(JsonRESTError):
+    code = 400
+
+
+class ClusterAlreadyExistsFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("ClusterAlreadyExistsFault", msg)
+
+
+class InvalidSubnetError(MemoryDBClientError):
+    def __init__(self, subnet_identifier: List[str]):
+        super().__init__("InvalidSubnetError", f"Subnet {subnet_identifier} not found.")
+
+
+class SubnetGroupAlreadyExistsFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("SubnetGroupAlreadyExistsFault", msg)
+
+
+class ClusterNotFoundFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("ClusterNotFoundFault", msg)
+
+
+class SnapshotAlreadyExistsFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("SnapshotAlreadyExistsFault", msg)
+
+
+class SnapshotNotFoundFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("SnapshotNotFoundFault", msg)
+
+
+class SubnetGroupNotFoundFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("SubnetGroupNotFoundFault", msg)
+
+
+class TagNotFoundFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("TagNotFoundFault", msg)
+
+
+class InvalidParameterValueException(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("InvalidParameterValueException", msg)
+
+
+class SubnetGroupInUseFault(MemoryDBClientError):
+    def __init__(self, msg: str):
+        super().__init__("SubnetGroupInUseFault", msg)