summaryrefslogtreecommitdiffstats
path: root/kilo/kilo/requests/views/image.py
blob: a3e70019d80855b5984f3a2623afa18647602ad2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
# Copyright (c) 2017 Wind River Systems, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import json
import urllib2
import threading
import traceback
from keystoneauth1.exceptions import HttpError
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView

from kilo.pub.exceptions import VimDriverKiloException

from util import VimDriverUtils

logger = logging.getLogger(__name__)

running_threads = {}
running_thread_lock = threading.Lock()

class imageThread (threading.Thread):
    service = {'service_type': 'image',
               'interface': 'public',
               'region_name': 'RegionOne'}
    def __init__(self, vimid, tenantid, imageid, imagefd):
        threading.Thread.__init__(self)
        self.vimid = vimid
        self.tenantid = tenantid
        self.imageid = imageid
        self.imagefd = imagefd

    def run(self):
        logger.debug("start imagethread %s, %s, %s" % (self.vimid, self.tenantid, self.imageid))
        self.transfer_image(self.vimid, self.tenantid, self.imageid, self.imagefd)
        logger.debug("stop imagethread %s, %s, %s" % (self.vimid, self.tenantid, self.imageid))
        running_thread_lock.acquire()
        running_threads.pop(self.imageid)
        running_thread_lock.release()

    def transfer_image(self, vimid, tenantid, imageid, imagefd):
        logger.debug("Images--transfer_image::> %s" % (imageid))
        try:
            # prepare request resource to vim instance
            req_resouce = "v2/images/%s/file" % imageid

            vim = VimDriverUtils.get_vim_info(vimid)
            sess = VimDriverUtils.get_session(vim, tenantid)

            #open imageurl
            resp = sess.put(req_resouce, endpoint_filter=self.service, data=imagefd.read(),
                    headers={"Content-Type": "application/octet-stream",
                             "Accept": ""})

            logger.debug("response status code of transfer_image %s" % resp.status_code)
            return None
        except HttpError as e:
            logger.error("transfer_image, HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
            return None
        except Exception as e:
            logger.error(traceback.format_exc())
            logger.debug("Failed to transfer_image:%s" % str(e))
            return None
        pass

class Images(APIView):
    service = {'service_type': 'image',
               'interface': 'public',
               'region_name': 'RegionOne'}
    keys_mapping = [
        ("project_id", "tenantId"),
        ("disk_format", "imageType"),
        ("container_format", "containerFormat")
    ]

    def get(self, request, vimid="", tenantid="", imageid=""):
        logger.debug("Images--get::> %s" % request.data)
        try:
            # prepare request resource to vim instance
            query = VimDriverUtils.get_query_part(request)
            content, status_code = self.get_images(query, vimid, tenantid, imageid)
            return Response(data=content, status=status_code)
        except VimDriverKiloException as e:
            return Response(data={'error': e.content}, status=e.status_code)
        except HttpError as e:
            logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
            return Response(data=e.response.json(), status=e.http_status)
        except Exception as e:
            logger.error(traceback.format_exc())
            return Response(data={'error': str(e)},
                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)

    def get_images(self, query="", vimid="", tenantid="", imageid=""):
        logger.debug("Images--get_images::> %s" % imageid)

        # prepare request resource to vim instance
        req_resouce = "v2/images"
        if imageid:
            req_resouce += "/%s" % imageid
        elif query:
            req_resouce += "?%s" % query

        vim = VimDriverUtils.get_vim_info(vimid)
        sess = VimDriverUtils.get_session(vim, tenantid)
        resp = sess.get(req_resouce, endpoint_filter=self.service)
        content = resp.json()
        vim_dict = {
            "vimName": vim["name"],
            "vimId": vim["vimId"],
            "tenantId": tenantid,
        }
        content.update(vim_dict)

        if not imageid:
            # convert the key naming in images
            for image in content["images"]:
                VimDriverUtils.replace_key_by_mapping(image,
                                                      self.keys_mapping)
        else:
            # convert the key naming in the image specified by id
            #image = content.pop("image", None)
            VimDriverUtils.replace_key_by_mapping(content,
                                                  self.keys_mapping)
            #content.update(image)

        return content, resp.status_code

    def post(self, request, vimid="", tenantid="", imageid=""):
        logger.debug("Images--post::> %s" % request.data)
        try:
            #check if created already: check name
            query = "name=%s" % request.data["name"]
            content, status_code = self.get_images(query, vimid, tenantid)
            existed = False
            if status_code == 200:
                for image in content["images"]:
                    if image["name"] == request.data["name"]:
                        existed = True
                        break
                    pass
                if existed == True:
                    vim_dict = {
                        "returnCode": 0,
                    }
                    image.update(vim_dict)
                    return Response(data=image, status=status_code)

            imageurl = request.data.pop("imagePath", None)
            imagefd = None
            if not imageurl:
                return Response(data={'error': 'imagePath is not specified'}, status=500)

            #valid image url
            imagefd = urllib2.urlopen(imageurl)
            if not imagefd:
                logger.debug("image is not available at %s" % imageurl)
                return Response(data={'error': 'cannot access to specified imagePath'}, status=500)

                # prepare request resource to vim instance
            req_resouce = "v2/images"

            vim = VimDriverUtils.get_vim_info(vimid)
            sess = VimDriverUtils.get_session(vim, tenantid)
            image = request.data
            VimDriverUtils.replace_key_by_mapping(image,
                                                  self.keys_mapping, True)
            #req_body = json.JSONEncoder().encode({"image": image})
            req_body = json.JSONEncoder().encode(image)
            resp = sess.post(req_resouce, data=req_body,
                             endpoint_filter=self.service)
            #resp_body = resp.json()["image"]
            resp_body = resp.json()
            VimDriverUtils.replace_key_by_mapping(resp_body, self.keys_mapping)
            vim_dict = {
                "vimName": vim["name"],
                "vimId": vim["vimId"],
                "tenantId": tenantid,
                "returnCode": 1,
            }
            resp_body.update(vim_dict)

            #launch a thread to download image and upload to VIM
            if resp.status_code == 201:
                imageid = resp_body["id"]
                logger.debug("launch thread to upload image: %s" % imageid)
                tmp_thread = imageThread(vimid, tenantid,imageid,imagefd)
                running_thread_lock.acquire()
                running_threads[imageid] = tmp_thread
                running_thread_lock.release()
                tmp_thread.start()
            else:
                logger.debug("resp.status_code: %s" % resp.status_code)
                pass

            return Response(data=resp_body, status=resp.status_code)
        except VimDriverKiloException as e:
            return Response(data={'error': e.content}, status=e.status_code)
        except urllib2.URLError as e:
            return Response(data={'error': 'image is not accessible:%s' % str(e)},
                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
        except HttpError as e:
            logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
            return Response(data=e.response.json(), status=e.http_status)
        except Exception as e:
            logger.error(traceback.format_exc())
            return Response(data={'error': str(e)},
                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
        pass

    def delete(self, request, vimid="", tenantid="", imageid=""):
        logger.debug("Images--delete::> %s" % request.data)
        try:
            # prepare request resource to vim instance
            req_resouce = "v2/images"
            if imageid:
                req_resouce += "/%s" % imageid

            vim = VimDriverUtils.get_vim_info(vimid)
            sess = VimDriverUtils.get_session(vim, tenantid)
            resp = sess.delete(req_resouce, endpoint_filter=self.service)
            return Response(status=resp.status_code)
        except VimDriverKiloException as e:
            return Response(data={'error': e.content}, status=e.status_code)
        except HttpError as e:
            logger.error("HttpError: status:%s, response:%s" % (e.http_status, e.response.json()))
            return Response(data=e.response.json(), status=e.http_status)
        except Exception as e:
            logger.error(traceback.format_exc())
            return Response(data={'error': str(e)},
                            status=status.HTTP_500_INTERNAL_SERVER_ERROR)
        pass