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quay/endpoints/api/image_models_pre_oci.py
Joseph Schorr 8146646761 Simplifying queries around images and placements
Only verbs needs to load placements for multiple images, so we can vastly simplify and optimize most queries by making it two-step, and having the rest of the image loads not worry about placements
2018-04-03 16:23:49 -04:00

56 lines
2.3 KiB
Python

from collections import defaultdict
from data import model
from endpoints.api.image_models_interface import (ImageInterface, ImageWithHistory, ImageWithTags,
Image)
def _image(namespace_name, repo_name, image, all_images, include_parents=True):
parent_image_tuples = []
if include_parents:
parent_images = [all_images[ancestor_id] for ancestor_id in image.ancestor_id_list()
if all_images.get(ancestor_id)]
parent_image_tuples = [_image(namespace_name, repo_name, parent_image, all_images, False)
for parent_image in parent_images]
return Image(image.docker_image_id, image.created, image.comment, image.command,
image.storage.image_size, image.storage.uploading, parent_image_tuples)
def _tag_names(image, tags_by_docker_id):
return [tag.name for tag in tags_by_docker_id.get(image.docker_image_id, [])]
class PreOCIModel(ImageInterface):
"""
PreOCIModel implements the data model for the Image API using a database schema
before it was changed to support the OCI specification.
"""
def get_repository_images(self, namespace_name, repo_name):
repo = model.repository.get_repository(namespace_name, repo_name)
if not repo:
return None
all_images = model.image.get_repository_images_without_placements(repo)
all_images_map = {image.id: image for image in all_images}
all_tags = list(model.tag.list_repository_tags(namespace_name, repo_name))
tags_by_docker_id = defaultdict(list)
for tag in all_tags:
tags_by_docker_id[tag.image.docker_image_id].append(tag)
def _build_image(image):
image_itself = _image(namespace_name, repo_name, image, all_images_map)
return ImageWithTags(image_itself, tag_names=_tag_names(image, tags_by_docker_id))
return [_build_image(image) for image in all_images]
def get_repository_image(self, namespace_name, repo_name, docker_image_id):
image = model.image.get_repo_image_and_storage(namespace_name, repo_name, docker_image_id)
if not image:
return None
parent_images = model.image.get_parent_images(namespace_name, repo_name, image)
all_images_map = {image.id: image for image in parent_images}
return ImageWithHistory(_image(namespace_name, repo_name, image, all_images_map))
pre_oci_model = PreOCIModel()