236 lines
6.9 KiB
Python
Executable File
236 lines
6.9 KiB
Python
Executable File
#
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# Copyright (c) 2015-2016 Wind River Systems, Inc.
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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import json
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import os
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import six
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from nfv_common import debug
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from nfv_common.helpers import Constant
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from nfv_common.helpers import Constants
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from nfv_common.helpers import Singleton
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from nfv_plugins.nfvi_plugins.openstack.objects import OPENSTACK_SERVICE
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from nfv_plugins.nfvi_plugins.openstack.rest_api import rest_api_request
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DLOG = debug.debug_get_logger('nfv_plugins.nfvi_plugins.openstack.glance')
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@six.add_metaclass(Singleton)
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class ImageStatus(Constants):
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"""
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IMAGE STATUS Constants
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"""
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QUEUED = Constant('queued')
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SAVING = Constant('saving')
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ACTIVE = Constant('active')
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PENDING_DELETE = Constant('pending_delete')
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DELETED = Constant('deleted')
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# Constant Instantiation
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IMAGE_STATUS = ImageStatus()
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def get_images(token, page_limit=1, next_page=None):
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"""
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Ask OpenStack Glance for a list of images
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url
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if next_page is None:
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api_cmd += "/v2/images"
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if page_limit is not None:
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api_cmd += "?limit=%s" % page_limit
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else:
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api_cmd += next_page
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response = rest_api_request(token, "GET", api_cmd)
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return response
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def create_image(token, image_name, image_description, container_format,
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disk_format, min_disk_size_gb, min_memory_size_mb, visibility,
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protected, properties):
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"""
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Ask OpenStack Glance to create an image
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url + "/v2/images"
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api_cmd_headers = dict()
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api_cmd_headers['Content-Type'] = "application/json"
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api_cmd_payload = dict()
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api_cmd_payload['name'] = image_name
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api_cmd_payload['description'] = image_description
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api_cmd_payload['container_format'] = container_format
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api_cmd_payload['disk_format'] = disk_format
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api_cmd_payload['min_disk'] = min_disk_size_gb
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api_cmd_payload['min_ram'] = min_memory_size_mb
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api_cmd_payload['visibility'] = visibility
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api_cmd_payload['protected'] = protected
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if properties is not None:
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for property in properties:
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api_cmd_payload[property] = properties[property]
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response = rest_api_request(token, "POST", api_cmd, api_cmd_headers,
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json.dumps(api_cmd_payload))
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return response
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def update_image(token, image_id, image_description, min_disk_size_gb,
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min_memory_size_mb, visibility, protected, properties):
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"""
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Ask OpenStack Glance to update an image
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url + "/v2/images/%s" % image_id
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api_cmd_headers = dict()
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api_cmd_headers['Content-Type'] = "application/" + \
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"openstack-images-v2.1-json-patch"
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operations = list()
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operation = dict()
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operation['op'] = 'replace'
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operation['path'] = '/description'
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operation['value'] = image_description
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operations.append(operation)
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operation = dict()
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operation['op'] = 'replace'
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operation['path'] = '/min_disk'
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operation['value'] = min_disk_size_gb
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operations.append(operation)
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operation = dict()
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operation['op'] = 'replace'
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operation['path'] = '/min_ram'
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operation['value'] = min_memory_size_mb
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operations.append(operation)
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operation = dict()
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operation['op'] = 'replace'
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operation['path'] = '/visibility'
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operation['value'] = visibility
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operations.append(operation)
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operation = dict()
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operation['op'] = 'replace'
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operation['path'] = '/protected'
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operation['value'] = protected
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operations.append(operation)
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if properties:
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for k in properties.keys():
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if properties[k] is not None:
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operation = dict()
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operation['op'] = 'replace'
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operation['path'] = '/%s' % k
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operation['value'] = properties[k]
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operations.append(operation)
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api_cmd_payload = operations
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response = rest_api_request(token, "PATCH", api_cmd, api_cmd_headers,
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json.dumps(api_cmd_payload))
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return response
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def delete_image(token, image_id):
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"""
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Ask OpenStack Glance to delete an image
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url + "/v2/images/%s" % image_id
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response = rest_api_request(token, "DELETE", api_cmd)
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return response
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def get_image(token, image_id):
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"""
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Ask OpenStack Glance for image details
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url + "/v2/images/%s" % image_id
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response = rest_api_request(token, "GET", api_cmd)
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return response
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def upload_image_data_by_url(token, image_id, image_data_url):
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"""
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Ask OpenStack Glance to upload image data using a url
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url + "/v2/images/%s" % image_id
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api_cmd_headers = dict()
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api_cmd_headers['Content-Type'] = "application/" + \
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"openstack-images-v2.1-json-patch"
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operations = list()
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operation = dict()
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operation['op'] = 'add'
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operation['path'] = '/locations/0'
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operation['value'] = {'url': image_data_url, 'metadata': {}}
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operations.append(operation)
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api_cmd_payload = operations
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response = rest_api_request(token, "PATCH", api_cmd, api_cmd_headers,
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json.dumps(api_cmd_payload))
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return response
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def upload_image_data_by_file(token, image_id, image_file):
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"""
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Ask OpenStack Glance to upload image data using a file
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"""
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url = token.get_service_url(OPENSTACK_SERVICE.GLANCE, strip_version=True)
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if url is None:
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raise ValueError("OpenStack Glance URL is invalid")
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api_cmd = url + "/v2/images/%s/file" % image_id
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api_cmd_headers = dict()
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api_cmd_headers['Content-Type'] = "application/octet-stream"
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file_size = os.path.getsize(image_file)
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api_cmd_headers['Content-Length'] = "%d" % file_size
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file = open(image_file, "rb")
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api_cmd_payload = file
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try:
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response = rest_api_request(token, "PUT", api_cmd, api_cmd_headers,
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api_cmd_payload)
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finally:
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file.close()
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return response
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