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pulpcore.plugin.models

All models documented here should be imported directly from the pulpcore.plugin.models namespace.

pulpcore.plugin.models

AlternateContentSource(*args, **kwargs)

Bases: MasterModel

Alternate sources of content.

Fields:

name (models.TextField): The alternate content source name.
last_refreshed (models.DateTimeField): Last refreshed date.
url (models.TextField): URL of Alternate Content Source.
pulp_domain (models.ForeignKeyField): The domain the ACS is a part of.

Relations:

remote (models.ForeignKeyField): Associated remote

AlternateContentSourcePath

Bases: BaseModel

Alternate sources of content.

Fields:

path (models.TextField): The alternate content source name.

Relations:

alternate_content_source (models.ForeignKeyField): Associated AlternateContentSource
repository (models.ForeignKeyField): Associated repository

AccessPolicy

Bases: BaseModel

A model storing a viewset authorization policy and permission assignment of new objects created.

Fields:

creation_hooks (models.JSONField): A list of dictionaries identifying callables on the
    ``pulpcore.plugin.access_policy.AccessPolicyFromDB`` which can add user or group roles
    for newly created objects. This is a nullable field due to not all endpoints creating
    objects.
statements (models.JSONField): A list of ``drf-access-policy`` statements.
viewset_name (models.TextField): The name of the viewset this instance controls
    authorization for.
customized (BooleanField): False if the AccessPolicy has been user-modified. True otherwise.
    Defaults to False.
queryset_scoping (models.JSONField): A dictionary identifying a callable to perform the
    queryset scoping. This field can be null if the user doesn't want to perform scoping.

AutoAddObjPermsMixin(*args, **kwargs)

A mixin that automatically adds roles based on the creation_hooks data.

To use this mixin, your model must support django-lifecycle.

This mixin adds an after_create hook which properly interprets the creation_hooks data and calls methods also provided by this mixin to add roles.

These hooks are provided by default:

  • add_roles_for_object_creator will add the roles to the creator of the object.
  • add_roles_for_users will add the roles for one or more users by name.
  • add_roles_for_groups will add the roles for one or more groups by name.

add_roles_for_users(roles, users)

Adds object-level roles for one or more users for this newly created object.

Parameters:

  • roles (str or list) –

    One or more roles to be added at object-level for the users. This can either be a single role as a string, or a list of role names.

  • users (str or list) –

    One or more users who will receive object-level roles. This can either be a single username as a string or a list of usernames.

Raises:

  • ObjectDoesNotExist –

    If any of the users do not exist.

add_roles_for_groups(roles, groups)

Adds object-level roles for one or more groups for this newly created object.

Parameters:

  • roles (str or list) –

    One or more object-level roles to be added for the groups. This can either be a single role as a string, or list of role names.

  • groups (str or list) –

    One or more groups who will receive object-level roles. This can either be a single group name as a string or a list of group names.

Raises:

  • ObjectDoesNotExist –

    If any of the groups do not exist.

add_roles_for_object_creator(roles)

Adds object-level roles for the user creating the newly created object.

If the get_current_authenticated_user returns None because the API client did not provide authentication credentials, no permissions are added and this passes silently. This allows endpoints which create objects and do not require authorization to execute without error.

Parameters:

  • roles (list or str) –

    One or more roles to be added at the object-level for the user. This can either be a single role as a string, or list of role names.

Artifact

Bases: HandleTempFilesMixin, BaseModel

A file associated with a piece of content.

When calling save() on an Artifact, if the file is not stored in Django's storage backend, it is moved into place then.

Artifact is compatible with Django's bulk_create() method.

Fields:

file (pulpcore.app.models.fields.ArtifactFileField): The stored file. This field should
    be set using an absolute path to a temporary file.
    It also accepts `class:django.core.files.File`.
size (models.BigIntegerField): The size of the file in bytes.
md5 (models.CharField): The MD5 checksum of the file.
sha1 (models.CharField): The SHA-1 checksum of the file.
sha224 (models.CharField): The SHA-224 checksum of the file.
sha256 (models.CharField): The SHA-256 checksum of the file (REQUIRED).
sha384 (models.CharField): The SHA-384 checksum of the file.
sha512 (models.CharField): The SHA-512 checksum of the file.
timestamp_of_interest (models.DateTimeField): timestamp that prevents orphan cleanup.
pulp_domain (models.ForeignKey): The domain the artifact is a part of.

storage_path(name)

Callable used by FileField to determine where the uploaded file should be stored.

Parameters:

  • name (str) –

    Original name of uploaded file. It is ignored by this method because the sha256 checksum is used to determine a file path instead.

before_save()

Pre-save hook that validates checksum rules prior to allowing an Artifact to be saved.

An Artifact with any checksums from the FORBIDDEN set will fail to save while raising an UnsupportedDigestValidationError exception.

Similarly, any checksums in DIGEST_FIELDS that is NOT set will raise a MissingDigestValidationError exception.

Raises:

  • class: ~pulpcore.exceptions.UnsupportedDigestValidationError: When any of the keys on FORBIDDEN_DIGESTS are set for the Artifact

  • class: ~pulpcore.exceptions.MissingDigestValidationError: When any of the keys on DIGEST_FIELDS are found to be missing from the Artifact

is_equal(other)

Is equal by matching digest.

Parameters:

  • other (Artifact) –

    A artifact to match.

Returns:

  • bool –

    True when equal.

init_and_validate(file, expected_digests=None, expected_size=None) staticmethod

Initialize an in-memory Artifact from a file, and validate digest and size info.

This accepts both a path to a file on-disk or a [pulpcore.app.files.PulpTemporaryUploadedFile][].

Parameters:

  • file ([pulpcore.app.files.PulpTemporaryUploadedFile][] or str) –

    The PulpTemporaryUploadedFile to create the Artifact from or a string with the full path to the file on disk.

  • expected_digests (dict, default: None ) –

    Keyed on the algorithm name provided by hashlib and stores the value of the expected digest. e.g. {'md5': '912ec803b2ce49e4a541068d495ab570'}

  • expected_size (int, default: None ) –

    The number of bytes the download is expected to have.

Raises:

  • [pulpcore.exceptions.DigestValidationError][] –

    When any of the expected_digest values don't match the digest of the data

  • [pulpcore.exceptions.SizeValidationError][] –

    When the expected_size value doesn't match the size of the data

  • [pulpcore.exceptions.UnsupportedDigestValidationError][] –

    When any of the expected_digest algorithms aren't in the ALLOWED_CONTENT_CHECKSUMS list

Returns: An in-memory, unsaved pulpcore.plugin.models.Artifact

from_pulp_temporary_file(temp_file) classmethod

Creates an Artifact from PulpTemporaryFile.

Returns:

touch()

Update timestamp_of_interest.

AsciiArmoredDetachedSigningService

Bases: SigningService

A model used for creating detached ASCII armored signatures.

validate()

Validate a signing service for a detached ASCII armored signature.

The validation seeks to ensure that the sign() method returns a dict as follows:

{"file": "signed_file.xml", "signature": "signed_file.asc"}

The method creates a file with some content, signs the file, and checks if the signature can be verified by the provided public key.

Raises:

  • RuntimeError –

    If the validation has failed.

BaseModel

Bases: LifecycleModel

Base model class for all Pulp models.

This model inherits from LifecycleModel which allows all Pulp models to be used with django-lifecycle.

Fields

pulp_created (models.DateTimeField): Created timestamp UTC. pulp_last_updated (models.DateTimeField): Last updated timestamp UTC.

Relations

user_roles (GenericRelation): List of user role associations with this object. group_roles (GenericRelation): List of group role associations with this object.

References:

* https://docs.djangoproject.com/en/3.2/topics/db/models/#automatic-primary-key-fields
* https://rsinger86.github.io/django-lifecycle/

Content(*args, **kwargs)

Bases: MasterModel, QueryMixin

A piece of managed content.

Fields

upstream_id (models.UUIDField) : identifier of content imported from an 'upstream' Pulp timestamp_of_interest (models.DateTimeField): timestamp that prevents orphan cleanup

Relations:

_artifacts (models.ManyToManyField): Artifacts related to Content through ContentArtifact
pulp_domain (models.ForeignKey): Pulp Domain this content lives in

repository_types() classmethod

Tuple of the repository models that can store this content type.

Populated at start up time. Read only.

natural_key_fields() classmethod

Returns a tuple of the natural key fields which usually equates to unique_together fields.

This can be overwritten in subclasses and should return a tuple of field names.

natural_key()

Get the model's natural key based on natural_key_fields.

Returns:

  • tuple –

    The natural key.

natural_key_dict()

Get the model's natural key as a dictionary of keys and values.

init_from_artifact_and_relative_path(artifact, relative_path) staticmethod

Return an instance of the specific content by inspecting an artifact.

Plugin writers are expected to override this method with an implementation for a specific content type. If the content type is stored with multiple artifacts plugin writers can instead return a tuple of the unsaved content instance and a dictionary of the content's artifacts by their relative paths.

For example::

if path.isabs(relative_path):
    raise ValueError(_("Relative path can't start with '/'."))
return FileContent(relative_path=relative_path, digest=artifact.sha256)

Parameters:

  • relative_path (str) –

    Relative path for the content

Raises:

  • ValueError –

    If relative_path starts with a '/'.

Returns:

touch()

Update timestamp_of_interest.

ContentArtifact

Bases: BaseModel, QueryMixin

A relationship between a Content and an Artifact.

Serves as a through model for the '_artifacts' ManyToManyField in Content. Artifact is protected from deletion if it's present in a ContentArtifact relationship.

sort_key(ca) staticmethod

Static method for defining a sort-key for a specified ContentArtifact.

Sorting lists of ContentArtifacts is critical for avoiding deadlocks in high-concurrency environments, when multiple workers may be operating on similar sets of content at the same time. Providing a stable sort-order becomes problematic when the CAs in question haven't been persisted - in that case, pulp_id can't be relied on, as it will change when the object is stored in the DB and its "real" key is generated.

This method produces a key based on the content/artifact represented by the CA.

Returns:

  • –

    a tuple of (str(content-key), str(artifact-key)) that can be reliably sorted on

ContentGuard(*args, **kwargs)

Bases: MasterModel

Defines a named content guard.

This is meant to be subclassed by plugin authors as an opportunity to provide plugin-specific persistent attributes and additional validation for those attributes. The permit() method must be overridden to provide the web request authorization logic.

This object is a Django model that inherits from pulpcore.app.models.ContentGuard which provides the platform persistent attributes for a content-guard. Plugin authors can add additional persistent attributes by subclassing this class and adding Django fields. We defer to the Django docs on extending this model definition with additional fields.

Fields

name (models.TextField): Unique guard name per domain. description (models.TextField): An optional description. pulp_domain (models.ForeignKey): The domain the ContentGuard is a part of.

permit(request)

Authorize the specified web request.

Parameters:

  • request (Request) –

    A request for a published file.

Raises:

  • PermissionError –

    When not authorized.

ContentRedirectContentGuard(*args, **kwargs)

Bases: ContentGuard, AutoAddObjPermsMixin

Content guard to allow preauthenticated redirects to the content app.

permit(request)

Permit preauthenticated redirects from pulp-api.

preauthenticate_url(url, salt=None)

Add validate_token to urls query string.

CreatedResource

Bases: GenericRelationModel

Resources created by the task.

Relations

task (models.ForeignKey): The task that created the resource.

Distribution(*args, **kwargs)

Bases: MasterModel

A Distribution defines how the Content App distributes a publication or repository_version.

This master model can be used by plugin writers to create detail Distribution objects.

The name must be unique.

The base_path must have no overlapping components. So if a Distribution with base_path of a/path/foo existed, you could not make a second Distribution with a base_path of a/path or a because both are subpaths of a/path/foo.

Subclasses are expected to use either the publication or repository_version field, but not both. The content app that serves content is not prepared to serve content both ways at the same time.

Fields

name (models.TextField): The name of the distribution. Examples: "rawhide" and "stable". pulp_labels (HStoreField): Dictionary of string values. base_path (models.TextField): The base (relative) path component of the published url. hidden (models.BooleanField): Whether this distribution should be hidden in the content app.

Relations

content_guard (models.ForeignKey): An optional content-guard. publication (models.ForeignKey): Publication to be served. remote (models.ForeignKey): A remote that the content app can use to find content not yet stored in Pulp. repository (models.ForeignKey): The latest RepositoryVersion for this Repository will be served. repository_version (models.ForeignKey): RepositoryVersion to be served. pulp_domain (models.ForeignKey): The domain the Distribution is a part of.

content_handler(path)

Handler to serve extra, non-Artifact content for this Distribution

Parameters:

  • path (str) –

    The path being requested

Returns: None if there is no content to be served at path. Otherwise a aiohttp.web_response.Response with the content.

content_handler_list_directory(rel_path)

Generate the directory listing entries for content_handler

Parameters:

  • rel_path (str) –

    relative path inside the distribution's base_path. For example,

Returns: Set of strings for the extra entries in rel_path

content_headers_for(path)

Opportunity for Distribution to specify response-headers for a specific path

Parameters:

  • path (str) –

    The path being requested

Returns: Empty dictionary, or a dictionary with HTTP Response header/value pairs.

invalidate_cache()

Invalidates the cache if enabled.

Domain(*args, **kwargs)

Bases: BaseModel, AutoAddObjPermsMixin

A namespace-like object applied to most Pulp models to allow for multi-tenancy.

Pulp models have a domain as a part of their uniqueness-constraint to provide isolation from other domains. Domains each have their own storage backend for storing and deduplicating Artifacts. Roles on a domain apply to all the objects in that domain.

Domains are an opt-in feature so Pulp models need to have their domain relation set the default to the "default" Domain when not enabled. Also, plugins must add domain foreign-keys to their models to be compatible with domains.

Fields

name (models.SlugField): Unique name of domain description (models.TextField): Optional description of domain storage_class (models.TextField): Required storage class for backend storage_settings (EncryptedJSONField): Settings needed to configure storage backend redirect_to_object_storage (models.BooleanField): Redirect to object storage in content app hide_guarded_distributions (models.BooleanField): Hide guarded distributions in content app

get_storage()

Returns this domain's instantiated storage class.

Export

Bases: BaseModel

A model that represents an Export.

Fields:

params (models.JSONField): A set of parameters used to create the export

Relations:

task (models.ForeignKey): The Task that created the export
exporter (models.ForeignKey): The Exporter that exported the resource.

Exporter(*args, **kwargs)

Bases: MasterModel

A base model that provides logic to export a set of content and keep track of Exports.

Fields:

name (models.TextField): The exporter unique name.

GroupProgressReport

Bases: BaseModel

A model for all progress reporting in a Task Group.

All progress reports have a message, code and are related to a Task Group.

Once a Task Group is created, plugin writers should create these objects ahead. For example:

>>> task_group = TaskGroup(description="Migration Sub-tasks")
>>> task_group.save()
>>> group_pr = GroupProgressReport(
>>>     message="Repo migration",
>>>     code="create.repo_version",
>>>     task_group=task_group).save()

Taks that will be executing certain work, and is part of a TaskGroup, will look for the Task group it belongs to and find appropriate progress report by its code and will update it accordingly.

For example:

>>> task_group = TaskGroup.current()
>>> progress_repo = task_group.group_progress_reports.filter(code='create.repo_version')
>>> progress_repo.update(done=F('done') + 1)

To avoid race conditions/cache invalidation issues, this pattern needs to be used so that operations are performed directly inside the database:

.update(done=F('done') + 1)

See: https://docs.djangoproject.com/en/3.2/ref/models/expressions/#f-expressions Important: F() objects assigned to model fields persist after saving the model instance and will be applied on each save(). Do not use save() and use update() instead, otherwise refresh_from_db() should be called after each save()

Fields:

message (models.TextField): short message for the progress update, typically
    shown to the user. (required)
code (models.TextField): identifies the type of progress report
total: (models.IntegerField) The total count of items to be handled
done (models.IntegerField): The count of items already processed. Defaults to 0.
suffix (models.TextField): Customizable suffix rendered with the progress report
    See `the docs <https://github.com/verigak/progress>`_. for more info.

Relations:

task_group: The task group associated with this group progress report.

Import

Bases: BaseModel

A model that represents imports into Pulp.

Fields

params (models.JSONField): A set of parameters used to run the import

Relations

task (models.ForeignKey): The Task that ran the import importer (models.ForeignKey): The Importer that imported the export

Importer(*args, **kwargs)

Bases: MasterModel

A base model that provides logic to import data into Pulp.

Can be extended by plugins to provide import functionality.

Fields

name (models.TextField): The importer unique name.

FilesystemExporter(*args, **kwargs)

Bases: Exporter

A base model that provides logic to export a set of content to the filesystem.

Fields:

path (models.TextField): a full path where the export will go.

MasterModel(*args, **kwargs)

Bases: BaseModel

Base model for the "Master" model in a "Master-Detail" relationship.

Provides methods for casting down to detail types, back up to the master type, as well as a model field for tracking the type.

Attributes:

TYPE (str): Default constant value saved into the ``pulp_type``
    field of Model instances

Fields:

pulp_type: The user-facing string identifying the detail type of this model
Warning

Subclasses of this class rely on there being no other parent/child Model relationships than the Master/Detail relationship. All subclasses must use only abstract Model base classes for MasterModel to behave properly. Specifically, OneToOneField relationships must not be used in any MasterModel subclass.

master property

The "Master" model instance of this master-detail pair

If this is already the master model instance, it will return itself.

get_pulp_type() classmethod

Get the "pulp_type" string associated with this MasterModel type.

cast()

Return the "Detail" model instance of this master-detail object.

If this is already an instance of its detail type, it will return itself.

acast() async

Return the "Detail" model instance of this master-detail object (async).

If this is already an instance of its detail type, it will return itself.

ProgressReport

Bases: BaseModel

A model for all progress reporting.

All progress reports have a message, state, and are related to a Task.

Plugin writers should create these objects to show progress reporting of a single step or aspect of work which has a name and state. For example:

>>> ProgressReport(
>>>     message='Publishing files', code='publish', total=23
>>> )  # default: state='waiting' and done=0

>>> ProgressReport(
>>>     message='Publishing files', code='publish', total=23, state='running'
>>> )  # specify the state
>>> ProgressReport(
>>>     message='Publishing files', code='publish', total=23, done=16
>>> )  # already completed 16

Update the state to COMPLETED and save it:

>>> progress_bar = ProgressReport(
>>>     message='Publishing files', code='publish', total=23, state='running'
>>> )
>>> progress_bar.state = 'completed'
>>> progress_bar.save()

The ProgressReport() is a context manager that provides automatic state transitions and saving for the RUNNING CANCELED COMPLETED and FAILED states. The increment() method can be called in the loop as work is completed. When ProgressReport() is used as a context manager progress reporting is rate limited to every 500 milliseconds. Use it as follows:

>>> progress_bar = ProgressReport(
>>>     message='Publishing files', code='publish', total=len(files_iterator)
>>> )
>>> progress_bar.save()
>>> with progress_bar:
>>>     # progress_bar saved as 'running'
>>>     for file in files_iterator:
>>>         handle(file)
>>>         progress_bar.increment()  # increments and saves
>>> # progress_bar is saved as 'completed' if no exception or 'failed' otherwise

A convenience method called iter() allows you to avoid calling increment() directly:

>>> progress_bar = ProgressReport(
>>>     message='Publishing files', code='publish', total=len(files_iterator)
>>> )
>>> progress_bar.save()
>>> with progress_bar:
>>>     for file in progress_bar.iter(files_iterator):
>>>         handle(file)

You can also use this short form which handles all necessary save() calls:

>>> data = dict(message='Publishing files', code='publish', total=len(files_iterator))
>>> with ProgressReport(**data) as pb:
>>>     for file in pb.iter(files_iterator):
>>>         handle(file)

ProgressReport objects are associated with a Task and auto-discover and populate the task id when saved.

When using threads to update a ProgressReport in parallel, it is recommended that all threads share the same in-memory instance. Django does not synchronize in-memory model instances, so multiple instances of a specific ProgressReport will diverge as they are written to from separate threads.

Fields:

message (models.TextField): short message for the progress update, typically
    shown to the user. (required)
code (models.TextField): identifies the type of progress report
state (models.TextField): The state of the progress update. Defaults to `WAITING`. This
    field uses a limited set of choices of field states. See `STATES` for possible states.
total: (models.IntegerField) The total count of items to be handled
done (models.IntegerField): The count of items already processed. Defaults to 0.
suffix (models.TextField): Customizable suffix rendered with the progress report
    See `the docs <https://github.com/verigak/progress>`_. for more info.

Relations:

task: The task associated with this progress report. If left unset when save() is called
    it will be set to the current task_id.

save(*args, **kwargs)

Auto-set the task_id if running inside a task

If the task_id is already set it will not be updated. If it is unset and this is running inside of a task it will be auto-set prior to saving.

args (list): positional arguments to be passed on to the real save kwargs (dict): keyword arguments to be passed on to the real save

asave(*args, **kwargs) async

Auto-set the task_id if running inside a task

If the task_id is already set it will not be updated. If it is unset and this is running inside of a task it will be auto-set prior to saving.

args (list): positional arguments to be passed on to the real save kwargs (dict): keyword arguments to be passed on to the real save

increment()

Increment done count and save the progress report.

This will increment and save the self.done attribute which is useful to put into a loop processing items.

aincrement() async

Increment done count and save the progress report.

This will increment and save the self.done attribute which is useful to put into a loop processing items.

increase_by(count)

Increase the done count and save the progress report.

This will increment and save the self.done attribute which is useful to put into a loop processing items.

aincrease_by(count) async

Increase the done count and save the progress report.

This will increment and save the self.done attribute which is useful to put into a loop processing items.

iter(iter)

Iterate and automatically call increment().

>>> progress_bar = ProgressReport(message='Publishing files', code='publish', total=23)
>>> progress_bar.save()
>>> for file in progress_bar.iter(files_iterator):
>>>     handle(file)

Parameters:

  • iter (iterator) –

    The iterator to loop through while incrementing

Returns:

  • –

    generator of iter argument items

Publication(*args, **kwargs)

Bases: MasterModel

A publication contains metadata and artifacts associated with content contained within a RepositoryVersion.

Using as a context manager is highly encouraged. On context exit, the complete attribute is set True provided that an exception has not been raised. In the event and exception has been raised, the publication is deleted.

Fields

complete (models.BooleanField): State tracking; for internal use. Indexed. pass_through (models.BooleanField): Indicates that the publication is a pass-through to the repository version. Enabling pass-through has the same effect as creating a PublishedArtifact for all of the content (artifacts) in the repository.

Relations

repository_version (models.ForeignKey): The RepositoryVersion used to create this Publication. pulp_domain (models.ForeignKey): The domain the Publication is a part of.

Examples:

>>> repository_version = ...
>>>
>>> with Publication.create(repository_version) as publication:
>>>     for content in repository_version.content():
>>>         for content_artifact in content.contentartifact_set.all():
>>>             artifact = PublishedArtifact(...)
>>>             artifact.save()
>>>             metadata = PublishedMetadata.create_from_file(...)
>>>             ...
>>>

repository property

Return the associated repository

Returns:

  • –

    pulpcore.app.models.Repository: The repository associated to this publication

create(repository_version, pass_through=False) classmethod

Create a publication.

This should be used to create a publication. Using Publication() directly is highly discouraged.

Parameters:

  • repository_version (RepositoryVersion) –

    The repository version to be published.

  • pass_through (bool, default: False ) –

    Indicates that the publication is a pass-through to the repository version. Enabling pass-through has the same effect as creating a PublishedArtifact for all of the content (artifacts) in the repository.

Returns:

  • –

    pulpcore.app.models.Publication: A created Publication in an incomplete state.

Notes

Adds a Task.created_resource for the publication.

delete(**kwargs)

Delete the publication.

Parameters:

  • **kwargs (dict, default: {} ) –

    Delete options.

Notes

Deletes the Task.created_resource when complete is False.

finalize_new_publication()

Finalize the incomplete Publication with plugin-provided code.

This method should be overridden by plugin writers for an opportunity for plugin input. This method is intended to be used to validate or modify the content.

This method does not adjust the value of complete, or save the Publication itself. Its intent is to allow the plugin writer an opportunity for plugin input before pulpcore marks the Publication as complete.

PublishedArtifact

Bases: BaseModel

An artifact that is part of a publication.

Fields

relative_path (models.TextField): The (relative) path component of the published url.

Relations

content_artifact (models.ForeignKey): The referenced content artifact. publication (models.ForeignKey): The publication in which the artifact is included.

PublishedMetadata(*args, **kwargs)

Bases: Content

Metadata file that is part of a publication.

Fields

relative_path (models.TextField): The (relative) path component of the published url.

Relations

publication (models.ForeignKey): The publication in which the artifact is included.

create_from_file(file, publication, relative_path=None) classmethod

Creates PublishedMetadata along with Artifact, ContentArtifact, and PublishedArtifact.

Parameters:

  • file (File) –

    an open File that contains metadata

  • publication (Publication) –

    The publication in which the PublishedMetadata is included.

  • relative_path (str, default: None ) –

    relative path at which the Metadata is published at. If None, the name of the 'file' is used.

Returns:

PulpTemporaryFile

Bases: HandleTempFilesMixin, BaseModel

A temporary file saved to the storage backend.

Commonly used to pass data to one or more tasks.

Fields:

file (pulpcore.app.models.fields.ArtifactFileField): The stored file. This field should
    be set using an absolute path to a temporary file.
    It also accepts `class:django.core.files.File`.
Relations

pulp_domain (pulpcore.app.models.Domain): The domain this temp file is a part of.

storage_path(name)

Callable used by FileField to determine where the uploaded file should be stored.

Parameters:

  • name (str) –

    Original name of uploaded file. It is ignored by this method because the pulp_id is used to determine a file path instead.

init_and_validate(file, expected_digests=None, expected_size=None) staticmethod

Initialize an in-memory PulpTemporaryFile from a file, and validate digest and size info.

This accepts both a path to a file on-disk or a [pulpcore.app.files.PulpTemporaryUploadedFile][].

Parameters:

  • file ([pulpcore.app.files.PulpTemporaryUploadedFile][] or str) –

    The PulpTemporaryUploadedFile to create the PulpTemporaryFile from or a string with the full path to the file on disk.

  • expected_digests (dict, default: None ) –

    Keyed on the algorithm name provided by hashlib and stores the value of the expected digest. e.g. {'md5': '912ec803b2ce49e4a541068d495ab570'}

  • expected_size (int, default: None ) –

    The number of bytes the download is expected to have.

Raises:

  • [pulpcore.exceptions.DigestValidationError][] –

    When any of the expected_digest values don't match the digest of the data

  • [pulpcore.exceptions.SizeValidationError][] –

    When the expected_size value doesn't match the size of the data

  • [pulpcore.exceptions.UnsupportedDigestValidationError][] –

    When any of the expected_digest algorithms aren't in the ALLOWED_CONTENT_CHECKSUMS list

Returns:

Repository(*args, **kwargs)

Bases: MasterModel

Collection of content.

Fields:

name (models.TextField): The repository name.
pulp_labels (HStoreField): Dictionary of string values.
description (models.TextField): An optional description.
next_version (models.PositiveIntegerField): A record of the next version number to be
    created.
retain_repo_versions (models.PositiveIntegerField): Number of repo versions to keep
user_hidden (models.BooleanField): Whether to expose this repo to users via the API

Relations:

content (models.ManyToManyField): Associated content.
remote (models.ForeignKeyField): Associated remote
pulp_domain (models.ForeignKeyField): The domain the Repository is a part of.

disk_size property

Returns the approximate size on disk for all artifacts stored across all versions.

on_demand_size property

Returns the approximate size of all on-demand artifacts stored across all versions.

on_new_version(version)

Called after a new repository version has been created.

Subclasses are expected to override this to do useful things.

Parameters:

  • version –

    The new repository version.

save(*args, **kwargs)

Saves Repository model and creates an initial repository version.

Parameters:

  • args (list, default: () ) –

    list of positional arguments for Model.save()

  • kwargs (dict, default: {} ) –

    dictionary of keyword arguments to pass to Model.save()

create_initial_version()

Create an initial repository version (version 0).

This method can be overriden by plugins if they require custom logic.

new_version(base_version=None)

Create a new RepositoryVersion for this Repository

Creation of a RepositoryVersion should be done in a RQ Job.

Parameters:

  • repository (Repository) –

    to create a new version of

  • base_version (RepositoryVersion, default: None ) –

    an optional repository version whose content will be used as the set of content for the new version

Returns:

  • –

    pulpcore.app.models.RepositoryVersion: The Created RepositoryVersion

initialize_new_version(new_version)

Initialize the new RepositoryVersion with plugin-provided code.

This method should be overridden by plugin writers for an opportunity for plugin input. This method is intended to be called with the incomplete pulpcore.app.models.RepositoryVersion to validate or modify the content.

This method does not adjust the value of complete, or save the RepositoryVersion itself. Its intent is to allow the plugin writer an opportunity for plugin input before any other actions performed on the new RepositoryVersion.

Parameters:

finalize_new_version(new_version)

Finalize the incomplete RepositoryVersion with plugin-provided code.

This method should be overridden by plugin writers for an opportunity for plugin input. This method is intended to be called with the incomplete pulpcore.app.models.RepositoryVersion to validate or modify the content.

This method does not adjust the value of complete, or save the RepositoryVersion itself. Its intent is to allow the plugin writer an opportunity for plugin input before pulpcore marks the RepositoryVersion as complete.

Parameters:

Returns:

latest_version()

Get the latest RepositoryVersion on a repository

Parameters:

  • repository (Repository) –

    to get the latest version of

Returns:

  • –

    pulpcore.app.models.RepositoryVersion: The latest RepositoryVersion

alatest_version() async

Get the latest RepositoryVersion on a repository asynchronously

Parameters:

  • repository (Repository) –

    to get the latest version of

Returns:

  • –

    pulpcore.app.models.RepositoryVersion: The latest RepositoryVersion

natural_key()

Get the model's natural key.

:return: The model's natural key. :rtype: tuple

on_demand_artifacts_for_version(version) staticmethod

Returns the remote artifacts of on-demand content for a repository version.

Provides a method that plugins can override since RepositoryVersions aren't typed. Note: this only returns remote artifacts that have a non-null size.

Parameters:

Returns: django.db.models.QuerySet: The remote artifacts that are contained within this version.

artifacts_for_version(version) staticmethod

Return the artifacts for a repository version.

Provides a method that plugins can override since RepositoryVersions aren't typed.

Parameters:

Returns:

  • –

    django.db.models.QuerySet: The artifacts that are contained within this version.

protected_versions()

Return repository versions that are protected.

A protected version is one that is being served by a distro directly or via publication.

Returns:

  • –

    django.db.models.QuerySet: Repo versions which are protected.

cleanup_old_versions()

Cleanup old repository versions based on retain_repo_versions.

delete(**kwargs)

Delete the repository.

Parameters:

  • **kwargs (dict, default: {} ) –

    Delete options.

invalidate_cache(everything=False)

Invalidates the cache if repository is present.

Remote(*args, **kwargs)

Bases: MasterModel

A remote source for content.

This is meant to be subclassed by plugin authors as an opportunity to provide plugin-specific persistent data attributes for a plugin remote subclass.

This object is a Django model that inherits from pulpcore.app.models.Remote which provides the platform persistent attributes for a remote object. Plugin authors can add additional persistent remote data by subclassing this object and adding Django fields. We defer to the Django docs on extending this model definition with additional fields.

Validation of the remote is done at the API level by a plugin defined subclass of [pulpcore.plugin.serializers.repository.RemoteSerializer][].

Fields:

name (models.TextField): The remote name.
pulp_labels (HStoreField): Dictionary of string values.
url (models.TextField): The URL of an external content source.
ca_cert (models.TextField): A PEM encoded CA certificate used to validate the
    server certificate presented by the external source.
client_cert (models.TextField): A PEM encoded client certificate used
    for authentication.
client_key (models.TextField): A PEM encoded private key used for authentication.
tls_validation (models.BooleanField): If True, TLS peer validation must be performed.
proxy_url (models.TextField): The optional proxy URL.
    Format: scheme://host:port
proxy_username (models.TextField): The optional username to authenticate with the proxy.
proxy_password (models.TextField): The optional password to authenticate with the proxy.
username (models.TextField): The username to be used for authentication when syncing.
password (models.TextField): The password to be used for authentication when syncing.
download_concurrency (models.PositiveIntegerField): Total number of
    simultaneous connections allowed to any remote during a sync.
policy (models.TextField): The policy to use when downloading content.
total_timeout (models.FloatField): Value for aiohttp.ClientTimeout.total on connections
connect_timeout (models.FloatField): Value for aiohttp.ClientTimeout.connect
sock_connect_timeout (models.FloatField): Value for aiohttp.ClientTimeout.sock_connect
sock_read_timeout (models.FloatField): Value for aiohttp.ClientTimeout.sock_read
headers (models.JSONField): Headers set on the aiohttp.ClientSession
rate_limit (models.IntegerField): Limits requests per second for each concurrent downloader

Relations:

pulp_domain (models.ForeignKey): The domain the Remote is a part of.

download_factory property

Return the DownloaderFactory which can be used to generate asyncio capable downloaders.

Upon first access, the DownloaderFactory is instantiated and saved internally.

Plugin writers are expected to override when additional configuration of the DownloaderFactory is needed.

Returns:

  • DownloadFactory –

    The instantiated DownloaderFactory to be used by get_downloader().

download_throttler property

Return the Throttler which can be used to rate limit downloaders.

Upon first access, the Throttler is instantiated and saved internally. Plugin writers are expected to override when additional configuration of the DownloaderFactory is needed.

Returns:

  • Throttler –

    The instantiated Throttler to be used by get_downloader()

get_downloader(remote_artifact=None, url=None, download_factory=None, **kwargs)

Get a downloader from either a RemoteArtifact or URL that is configured with this Remote.

This method accepts either remote_artifact or url but not both. At least one is required. If neither or both are passed a ValueError is raised.

Plugin writers are expected to override when additional configuration is needed or when another class of download is required.

Parameters:

Raises:

  • ValueError –

    If neither remote_artifact and url are passed, or if both are passed.

Returns:

get_remote_artifact_url(relative_path=None, request=None)

Get the full URL for a RemoteArtifact from relative path and request.

This method returns the URL for a RemoteArtifact by concatenating the Remote's url and the relative path. Plugin writers are expected to override this method when a more complex algorithm is needed to determine the full URL.

Parameters:

  • relative_path (str, default: None ) –

    The relative path of a RemoteArtifact

  • request (Request, default: None ) –

    The request object for this relative path

Raises:

  • ValueError –

    If relative_path starts with a '/'.

Returns:

  • str –

    A URL for a RemoteArtifact available at the Remote.

get_remote_artifact_content_type(relative_path=None)

Get the type of content that should be available at the relative path.

Plugin writers are expected to implement this method. This method can return None if the relative path is for metadata that should only be streamed from the remote and not saved.

Parameters:

  • relative_path (str, default: None ) –

    The relative path of a RemoteArtifact

Returns:

  • –

    Optional[Class]: The optional Class of the content type that should be available at the relative path.

invalidate_cache()

Invalidates the cache if remote is present.

RemoteArtifact

Bases: BaseModel, QueryMixin

Represents a content artifact that is provided by a remote (external) repository.

Remotes that want to support deferred download policies should use this model to store information required for downloading an Artifact at some point in the future. At a minimum this includes the URL, the ContentArtifact, and the Remote that created it. It can also store expected size and any expected checksums.

Fields:

url (models.TextField): The URL where the artifact can be retrieved.
size (models.BigIntegerField): The expected size of the file in bytes.
md5 (models.CharField): The expected MD5 checksum of the file.
sha1 (models.CharField): The expected SHA-1 checksum of the file.
sha224 (models.CharField): The expected SHA-224 checksum of the file.
sha256 (models.CharField): The expected SHA-256 checksum of the file.
sha384 (models.CharField): The expected SHA-384 checksum of the file.
sha512 (models.CharField): The expected SHA-512 checksum of the file.
failed_at (models.DateTimeField): The datetime of last download attempt failure.

Relations:

content_artifact (pulpcore.app.models.ForeignKey)
    ContentArtifact associated with this RemoteArtifact.
remote (django.db.models.ForeignKey) Remote that created the
    RemoteArtifact.
pulp_domain (django.db.models.ForeignKey) Domain the RemoteArtifact is a part of.

validate_checksums()

Validate if RemoteArtifact has allowed checksum or no checksum at all.

RepositoryContent

Bases: BaseModel

Association between a repository and its contained content.

Fields:

created (models.DatetimeField): When the association was created.

Relations:

content (models.ForeignKey): The associated content.
repository (models.ForeignKey): The associated repository.
version_added (models.ForeignKey): The RepositoryVersion which added the referenced
    Content.
version_removed (models.ForeignKey): The RepositoryVersion which removed the referenced
    Content.

RepositoryVersion

Bases: BaseModel

A version of a repository's content set.

Plugin Writers are strongly encouraged to use RepositoryVersion as a context manager to provide transactional safety, working directory set up, plugin finalization, and cleaning up the database on failures.

Examples::

with repository.new_version(repository) as new_version:
    new_version.add_content(content_q)
    new_version.remove_content(content_q)

Fields:

number (models.PositiveIntegerField): A positive integer that uniquely identifies a version
    of a specific repository. Each new version for a repo should have this field set to
    1 + the most recent version.
complete (models.BooleanField): If true, the RepositoryVersion is visible. This field is set
    to true when the task that creates the RepositoryVersion is complete.

Relations:

repository (models.ForeignKey): The associated repository.
base_version (models.ForeignKey): The repository version this was created from.

content property

Returns a set of content for a repository version

Returns:

  • –

    django.db.models.QuerySet: The content that is contained within this version.

Examples:

>>> repository_version = ...
>>>
>>> for content in repository_version.content:
>>>     content = content.cast()  # optional downcast.
>>>     ...
>>>
>>> for content in FileContent.objects.filter(pk__in=repository_version.content):
>>>     ...
>>>

artifacts property

Returns a set of artifacts for a repository version.

Returns:

  • –

    django.db.models.QuerySet: The artifacts that are contained within this version.

disk_size property

Returns the size on disk of all the artifacts in this repository version.

on_demand_size property

Returns the size of on-demand artifacts in this repository version.

get_content(content_qs=None)

Returns a set of content for a repository version

Parameters:

  • content_qs (QuerySet, default: None ) –

    The queryset for Content that will be restricted further to the content present in this repository version. If not given, Content.objects.all() is used (to return over all content types present in the repository version).

Returns:

  • –

    django.db.models.QuerySet: The content that is contained within this version.

Examples:

>>> repository_version = ...
>>>
>>> # Return a queryset of File objects in the repository
>>> repository_version.get_content(content_qs=File.objects)):

content_batch_qs(content_qs=None, order_by_params=('pk'), batch_size=1000)

Generate content batches to efficiently iterate over all content.

Generates query sets that span the content_qs content of the repository version. Each yielded query set evaluates to at most batch_size content records. This is useful to limit the memory footprint when iterating over all content of a repository version.

.. note::

* This generator is not safe against changes (i.e. add/remove content) during
  the iteration!

* As the method uses slices internally, the queryset must be ordered to yield
  stable results. By default, it is ordered by primary key.

Parameters:

  • order_by_params (tuple of str, default: ('pk') ) –

    The parameters for the order_by clause for the content. The Default is ("pk",). This needs to specify a stable order. For example, if you want to iterate by decreasing creation time stamps use ("-pulp_created", "pk") to ensure that content records are still sorted by primary key even if their creation timestamp happens to be equal.

  • batch_size (int, default: 1000 ) –

    The maximum batch size.

Yields:

  • –

    [django.db.models.QuerySet][]: A QuerySet representing a slice of the content.

Example

The following code could be used to loop over all FileContent in repository_version. It prefetches the related pulpcore.plugin.models.ContentArtifact instances for every batch::

repository_version = ...

batch_generator = repository_version.content_batch_qs(
    content_class=FileContent.objects.all()
)
for content_batch_qs in batch_generator:
    content_batch_qs.prefetch_related("contentartifact_set")
    for content in content_batch_qs:
        ...

added(base_version=None)

Parameters:

  • base_version (RepositoryVersion, default: None ) –

    an optional repository version

Returns:

  • QuerySet –

    The Content objects that were added by this version.

removed(base_version=None)

Parameters:

  • base_version (RepositoryVersion, default: None ) –

    an optional repository version

Returns:

  • QuerySet –

    The Content objects that were removed by this version.

contains(content)

Check whether a content exists in this repository version's set of content

Returns:

  • bool –

    True if the repository version contains the content, False otherwise

add_content(content)

Add a content unit to this version.

Parameters:

  • content (QuerySet) –

    Set of Content to add

Raise

pulpcore.exception.ResourceImmutableError: if add_content is called on a complete RepositoryVersion

remove_content(content)

Remove content from the repository.

Parameters:

  • content (QuerySet) –

    Set of Content to remove

Raise

pulpcore.exception.ResourceImmutableError: if remove_content is called on a complete RepositoryVersion

set_content(content)

Sets the repo version content by calling remove_content() then add_content().

Parameters:

  • content (QuerySet) –

    Set of desired content

Raise

pulpcore.exception.ResourceImmutableError: if set_content is called on a complete RepositoryVersion

next()

Returns:

Raises:

  • [RepositoryVersion.DoesNotExist][] –

    if there is not a RepositoryVersion for the same repository and with a higher "number".

previous()

Returns:

  • –

    pulpcore.app.models.RepositoryVersion: The previous complete RepositoryVersion for the same repository.

Raises:

  • DoesNotExist –

    if there is not a RepositoryVersion for the same repository and with a lower "number".

check_protected()

Check if a repo version is protected before trying to delete it.

delete(**kwargs)

Deletes a RepositoryVersion

If RepositoryVersion is complete and has a successor, squash RepositoryContent changes into the successor. If version is incomplete, delete and and clean up RepositoryContent, CreatedResource, and Repository objects.

Deletion of a complete RepositoryVersion should be done in a task.

SigningService

Bases: BaseModel

A model used for producing signatures.

Fields

name (models.TextField): A unique name describing a script (or executable) used for signing. public_key (models.TextField): The value of the public key. script (models.TextField): An absolute path to an external signing script (or executable).

sign(filename, env_vars=None)

Signs the file provided via 'filename' by invoking an external script (or executable).

The external script is run as a subprocess. This is done in the expectation that the script has been validated as an external signing service by the validate() method. This validation is currently only done when creating the signing service object, but not at the time of use.

Parameters:

  • filename (str) –

    A relative path to a file which is intended to be signed.

  • env_vars (dict, default: None ) –

    dictionary of environment variables

Raises:

  • RuntimeError –

    If the return code of the script is not equal to 0.

Returns:

  • –

    A dictionary as validated by the validate() method.

asign(filename, env_vars=None) async

Async version of sign.

validate()

Ensure that the external signing script produces the desired behaviour.

With desired behaviour we mean the behaviour as validated by this method. Subclasses are required to implement this method. Works by calling the sign() method on some test data, and verifying that any desired signatures/signature files are returned and are valid. Must also enforce the desired return value format of the sign() method.

Raises:

  • RuntimeError –

    If the script failed to produce the desired outcome for the test data.

save(*args, **kwargs)

Save a signing service to the database (unless it fails to validate).

Task(*args, **kwargs)

Bases: BaseModel, AutoAddObjPermsMixin

Represents a task

Fields:

state (models.TextField): The state of the task
name (models.TextField): The name of the task
logging_cid (models.TextField): The logging CID associated with the task
unblocked_at (models.DateTimeField): The time the task was marked as unblocked.
    This is supervised/updated by all awake workers and is part of the definition
    of a ready-to-be-taken task.
started_at (models.DateTimeField): The time the task started executing
finished_at (models.DateTimeField): The time the task finished executing
error (models.JSONField): Fatal errors generated by the task
args (models.JSONField): The JSON serialized arguments for the task
kwargs (models.JSONField): The JSON serialized keyword arguments for
    the task
reserved_resources_record (django.contrib.postgres.fields.ArrayField): The reserved
    resources required for the task.
immediate (models.BooleanField): Whether this is guaranteed to execute fast
    without blocking. Defaults to `False`.
deferred (models.BooleanField): Whether to allow defer running the task to a
    pulpcore_worker. Both `immediate` and `deferred` cannot both be `False`.
    Defaults to `True`.

Relations:

parent (models.ForeignKey): Task that spawned this task (if any)
worker (models.ForeignKey): The worker that this task is in
pulp_domain (models.ForeignKey): The domain the Task is a part of

current_id() staticmethod

Returns:

  • –

    uuid.UUID: The current task id.

current() staticmethod

Returns:

  • –

    pulpcore.app.models.Task: The current task.

add_role_dispatcher()

Set the "core.task_user_dispatcher" role for the current user after creation.

set_running()

Set this Task to the running state, save it, and log output in warning cases.

This updates the :attr:started_at and sets the :attr:state to :attr:RUNNING.

set_completed()

Set this Task to the completed state, save it, and log output in warning cases.

This updates the :attr:finished_at and sets the :attr:state to :attr:COMPLETED.

set_failed(exc, tb)

Set this Task to the failed state and save it.

This updates the :attr:finished_at attribute, sets the :attr:state to :attr:FAILED, and sets the :attr:error attribute.

Parameters:

  • exc (Exception) –

    The exception raised by the task.

  • tb (traceback) –

    Traceback instance for the current exception.

set_canceling()

Set this task to canceling from either waiting, running or canceling.

This is the only valid transition without holding the task lock.

set_canceled(final_state=TASK_STATES.CANCELED, reason=None)

Set this task to canceled or failed from canceling.

TaskGroup

Bases: BaseModel

current() staticmethod

Returns:

  • –

    pulpcore.app.models.TaskGroup: The task group the current task is being executed and

  • –

    belongs to.

finish()

Finalize the task group.

Set 'all_tasks_dispatched' to True so that API users can know that there are no tasks in the group yet to be created.

Upload(*args, **kwargs)

Bases: BaseModel, AutoAddObjPermsMixin

A chunked upload. Stores chunks until used to create an artifact, etc.

Fields:

size (models.BigIntegerField): The size of the file in bytes.

Relations:

pulp_domain (models.ForeignKey): The domain the Upload is a part of.

append(chunk, offset, sha256=None)

Append a chunk to an upload.

Parameters:

  • chunk (File) –

    Binary data to append to the upload file.

  • offset (int) –

    First byte position to write chunk to.

UploadChunk

Bases: BaseModel

A chunk for an uploaded file.

Fields:

file (fields.FileField): A file where the uploaded chunk is stored.
upload (models.ForeignKey): Upload this chunk belongs to.
offset (models.BigIntegerField): Start of the chunk in bytes.
size (models.BigIntegerField): Size of the chunk in bytes.

pulp_domain property

Get the Domain for this chunk from the Upload.

storage_path(name)

Callable used by FileField to determine where the uploaded file should be stored.

Parameters:

  • name (str) –

    Original name of uploaded file. It is ignored by this method because the pulp_id is used to determine a file path instead.

EncryptedTextField(*args, **kwargs)

Bases: TextField

A field mixin that encrypts text using settings.DB_ENCRYPTION_KEY.