Object Store API¶
For details on how to use this API, see Using OpenStack Object Store
The Object Store Class¶
The Object Store high-level interface is exposed as the object_store
object on Connection
objects.
Account Operations¶
-
class
openstack.object_store.v1._proxy.
Proxy
(session, statsd_client=None, statsd_prefix=None, prometheus_counter=None, prometheus_histogram=None, influxdb_config=None, influxdb_client=None, *args, **kwargs)¶ -
-
set_account_metadata
(**metadata)¶ Set metadata for this account.
Parameters: metadata (kwargs) – Key/value pairs to be set as metadata on the container. Custom metadata can be set. Custom metadata are keys and values defined by the user.
-
delete_account_metadata
(keys)¶ Delete metadata for this account.
Parameters: keys – The keys of metadata to be deleted.
-
Container Operations¶
-
class
openstack.object_store.v1._proxy.
Proxy
(session, statsd_client=None, statsd_prefix=None, prometheus_counter=None, prometheus_histogram=None, influxdb_config=None, influxdb_client=None, *args, **kwargs) -
create_container
(name, **attrs)¶ Create a new container from attributes
Parameters: - container – Name of the container to create.
- attrs (dict) – Keyword arguments which will be used to create
a
Container
, comprised of the properties on the Container class.
Returns: The results of container creation
Return type:
-
delete_container
(container, ignore_missing=True)¶ Delete a container
Parameters: - container – The value can be either the name of a container or a
Container
instance. - ignore_missing (bool) – When set to
False
ResourceNotFound
will be raised when the container does not exist. When set toTrue
, no exception will be set when attempting to delete a nonexistent server.
Returns: None
- container – The value can be either the name of a container or a
-
containers
(**query)¶ Obtain Container objects for this account.
Parameters: query (kwargs) – Optional query parameters to be sent to limit the resources being returned. Return type: A generator of Container
objects.
-
get_container_metadata
(container)¶ Get metadata for a container
Parameters: container – The value can be the name of a container or a Container
instance.Returns: One Container
Raises: ResourceNotFound
when no resource can be found.
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set_container_metadata
(container, refresh=True, **metadata)¶ Set metadata for a container.
Parameters: - container – The value can be the name of a container or a
Container
instance. - refresh – Flag to trigger refresh of container object re-fetch.
- metadata (kwargs) –
Key/value pairs to be set as metadata on the container. Both custom and system metadata can be set. Custom metadata are keys and values defined by the user. System metadata are keys defined by the Object Store and values defined by the user. The system metadata keys are:
- content_type
- is_content_type_detected
- versions_location
- read_ACL
- write_ACL
- sync_to
- sync_key
- container – The value can be the name of a container or a
-
Object Operations¶
-
class
openstack.object_store.v1._proxy.
Proxy
(session, statsd_client=None, statsd_prefix=None, prometheus_counter=None, prometheus_histogram=None, influxdb_config=None, influxdb_client=None, *args, **kwargs) -
upload_object
(container, name, filename=None, md5=None, sha256=None, segment_size=None, use_slo=True, metadata=None, generate_checksums=None, data=None, **headers)¶ Create a file object.
Automatically uses large-object segments if needed.
Parameters: - container – The name of the container to store the file in. This container will be created if it does not exist already.
- name – Name for the object within the container.
- filename – The path to the local file whose contents will be uploaded. Mutually exclusive with data.
- data – The content to upload to the object. Mutually exclusive with filename.
- md5 – A hexadecimal md5 of the file. (Optional), if it is known and can be passed here, it will save repeating the expensive md5 process. It is assumed to be accurate.
- sha256 – A hexadecimal sha256 of the file. (Optional) See md5.
- segment_size – Break the uploaded object into segments of this many bytes. (Optional) SDK will attempt to discover the maximum value for this from the server if it is not specified, or will use a reasonable default.
- headers – These will be passed through to the object creation API as HTTP Headers.
- use_slo – If the object is large enough to need to be a Large Object, use a static rather than dynamic object. Static Objects will delete segment objects when the manifest object is deleted. (optional, defaults to True)
- generate_checksums – Whether to generate checksums on the client side that get added to headers for later prevention of double uploads of identical data. (optional, defaults to True)
- metadata – This dict will get changed into headers that set metadata of the object
Raises: OpenStackCloudException
on operation error.
-
download_object
(obj, container=None, **attrs)¶ Download the data contained inside an object.
Parameters: Raises: ResourceNotFound
when no resource can be found.
-
copy_object
()¶ Copy an object.
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delete_object
(obj, ignore_missing=True, container=None)¶ Delete an object
Parameters: - obj – The value can be either the name of an object or a
Container
instance. - container – The value can be the ID of a container or a
Container
instance. - ignore_missing (bool) – When set to
False
ResourceNotFound
will be raised when the object does not exist. When set toTrue
, no exception will be set when attempting to delete a nonexistent server.
Returns: None
- obj – The value can be either the name of an object or a
-
get_object
(obj, container=None)¶ Get the data associated with an object
Parameters: Returns: The contents of the object. Use the
get_object_metadata()
method if you want an object resource.Raises: ResourceNotFound
when no resource can be found.
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objects
(container, **query)¶ Return a generator that yields the Container’s objects.
Parameters: - container (
Container
) – A container object or the name of a container that you want to retrieve objects from. - query (kwargs) – Optional query parameters to be sent to limit the resources being returned.
Return type: A generator of
Object
objects.- container (
-
get_object_metadata
(obj, container=None)¶ Get metadata for an object.
Parameters: Returns: One
Object
Raises: ResourceNotFound
when no resource can be found.
-
set_object_metadata
(obj, container=None, **metadata)¶ Set metadata for an object.
Note: This method will do an extra HEAD call.
Parameters: - obj – The value can be the name of an object or a
Object
instance. - container – The value can be the name of a container or a
Container
instance. - metadata (kwargs) –
Key/value pairs to be set as metadata on the container. Both custom and system metadata can be set. Custom metadata are keys and values defined by the user. System metadata are keys defined by the Object Store and values defined by the user. The system metadata keys are:
- content_type
- content_encoding
- content_disposition
- delete_after
- delete_at
- is_content_type_detected
- obj – The value can be the name of an object or a
-