services/nodemanager/arvnodeman/test/fake_driver.py

   1 # Copyright (C) The Arvados Authors. All rights reserved.
   2 #
   3 # SPDX-License-Identifier: AGPL-3.0
   4
   5 import re
   6 import urllib
   7 import ssl
   8 import time
   9
  10 from arvnodeman.computenode import ARVADOS_TIMEFMT
  11
  12 from libcloud.compute.base import NodeSize, Node, NodeDriver, NodeState, NodeImage
  13 from libcloud.compute.drivers.gce import GCEDiskType
  14 from libcloud.common.exceptions import BaseHTTPError, RateLimitReachedError
  15
  16 all_nodes = []
  17 create_calls = 0
  18 quota = 2
  19
  20 class FakeDriver(NodeDriver):
  21     def __init__(self, *args, **kwargs):
  22         self.name = "FakeDriver"
  23
  24     def list_sizes(self, **kwargs):
  25         return [NodeSize("Standard_D3", "Standard_D3", 3500, 200, 0, 0, self),
  26                 NodeSize("Standard_D4", "Standard_D4", 7000, 400, 0, 0, self)]
  27
  28     def list_nodes(self, **kwargs):
  29         return all_nodes
  30
  31     def create_node(self, name=None,
  32                     size=None,
  33                     image=None,
  34                     auth=None,
  35                     ex_storage_account=None,
  36                     ex_customdata=None,
  37                     ex_resource_group=None,
  38                     ex_user_name=None,
  39                     ex_tags=None,
  40                     ex_metadata=None,
  41                     ex_network=None,
  42                     ex_userdata=None):
  43         global all_nodes, create_calls
  44         create_calls += 1
  45         nodeid = "node%i" % create_calls
  46         n = Node(nodeid, nodeid, NodeState.RUNNING, [], [], self, size=size, extra={"tags": ex_tags})
  47         all_nodes.append(n)
  48         if ex_customdata:
  49             ping_url = re.search(r"echo '(.*)' > /var/tmp/arv-node-data/arv-ping-url", ex_customdata).groups(1)[0]
  50         if ex_userdata:
  51             ping_url = ex_userdata
  52         if ex_metadata:
  53             ping_url = ex_metadata["arv-ping-url"]
  54         ping_url += "&instance_id=" + nodeid
  55         ctx = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
  56         ctx.verify_mode = ssl.CERT_NONE
  57         f = urllib.urlopen(ping_url, "", context=ctx)
  58         f.close()
  59         return n
  60
  61     def destroy_node(self, cloud_node):
  62         global all_nodes
  63         all_nodes = [n for n in all_nodes if n.id != cloud_node.id]
  64         return True
  65
  66     def get_image(self, img):
  67         pass
  68
  69     def ex_create_tags(self, cloud_node, tags):
  70         pass
  71
  72 class QuotaDriver(FakeDriver):
  73     def create_node(self, name=None,
  74                     size=None,
  75                     image=None,
  76                     auth=None,
  77                     ex_storage_account=None,
  78                     ex_customdata=None,
  79                     ex_resource_group=None,
  80                     ex_user_name=None,
  81                     ex_tags=None,
  82                     ex_network=None):
  83         global all_nodes, create_calls, quota
  84         if len(all_nodes) >= quota:
  85             raise BaseHTTPError(503, "Quota exceeded")
  86         else:
  87             return super(QuotaDriver, self).create_node(name=name,
  88                     size=size,
  89                     image=image,
  90                     auth=auth,
  91                     ex_storage_account=ex_storage_account,
  92                     ex_customdata=ex_customdata,
  93                     ex_resource_group=ex_resource_group,
  94                     ex_user_name=ex_user_name,
  95                     ex_tags=ex_tags,
  96                     ex_network=ex_network)
  97
  98     def destroy_node(self, cloud_node):
  99         global all_nodes, quota
 100         all_nodes = [n for n in all_nodes if n.id != cloud_node.id]
 101         if len(all_nodes) == 0:
 102             quota = 4
 103         return True
 104
 105 class FailingDriver(FakeDriver):
 106     def create_node(self, name=None,
 107                     size=None,
 108                     image=None,
 109                     auth=None,
 110                     ex_storage_account=None,
 111                     ex_customdata=None,
 112                     ex_resource_group=None,
 113                     ex_user_name=None,
 114                     ex_tags=None,
 115                     ex_network=None):
 116         raise Exception("nope")
 117
 118 class RetryDriver(FakeDriver):
 119     def create_node(self, name=None,
 120                     size=None,
 121                     image=None,
 122                     auth=None,
 123                     ex_storage_account=None,
 124                     ex_customdata=None,
 125                     ex_resource_group=None,
 126                     ex_user_name=None,
 127                     ex_tags=None,
 128                     ex_network=None):
 129         global create_calls
 130         create_calls += 1
 131         if create_calls < 2:
 132             raise RateLimitReachedError(429, "Rate limit exceeded",
 133                                         headers={'retry-after': '12'})
 134         elif create_calls < 3:
 135             raise BaseHTTPError(429, "Rate limit exceeded",
 136                                 {'retry-after': '2'})
 137         else:
 138             return super(RetryDriver, self).create_node(name=name,
 139                     size=size,
 140                     image=image,
 141                     auth=auth,
 142                     ex_storage_account=ex_storage_account,
 143                     ex_customdata=ex_customdata,
 144                     ex_resource_group=ex_resource_group,
 145                     ex_user_name=ex_user_name,
 146                     ex_tags=ex_tags,
 147                     ex_network=ex_network)
 148
 149 class FakeAwsDriver(FakeDriver):
 150
 151     def create_node(self, name=None,
 152                     size=None,
 153                     image=None,
 154                     auth=None,
 155                     ex_userdata=None,
 156                     ex_metadata=None,
 157                     ex_blockdevicemappings=None):
 158         n = super(FakeAwsDriver, self).create_node(name=name,
 159                                                       size=size,
 160                                                       image=image,
 161                                                       auth=auth,
 162                                                       ex_metadata=ex_metadata,
 163                                                       ex_userdata=ex_userdata)
 164         n.extra = {"launch_time": time.strftime(ARVADOS_TIMEFMT, time.gmtime())[:-1]}
 165         return n
 166
 167     def list_sizes(self, **kwargs):
 168         return [NodeSize("m3.xlarge", "Extra Large Instance", 3500, 80, 0, 0, self),
 169                 NodeSize("m4.xlarge", "Extra Large Instance", 3500, 0, 0, 0, self),
 170                 NodeSize("m4.2xlarge", "Double Extra Large Instance", 7000, 0, 0, 0, self)]
 171
 172
 173 class FakeGceDriver(FakeDriver):
 174
 175     def create_node(self, name=None,
 176                     size=None,
 177                     image=None,
 178                     auth=None,
 179                     external_ip=None,
 180                     ex_metadata=None,
 181                     ex_tags=None,
 182                     ex_disks_gce_struct=None):
 183         n = super(FakeGceDriver, self).create_node(name=name,
 184                                                    size=size,
 185                                                    image=image,
 186                                                    auth=auth,
 187                                                    ex_metadata=ex_metadata)
 188         n.extra = {
 189             "metadata": {
 190                 "items": [{"key": k, "value": v} for k,v in ex_metadata.iteritems()]
 191             },
 192             "zone": "fake"
 193         }
 194         return n
 195
 196     def list_images(self, ex_project=None):
 197         return [NodeImage("fake_image_id", "fake_image_id", self)]
 198
 199     def list_sizes(self, **kwargs):
 200         return [NodeSize("n1-standard-1", "Standard", 3750, None, 0, 0, self),
 201                 NodeSize("n1-standard-2", "Double standard", 7500, None, 0, 0, self)]
 202
 203     def ex_list_disktypes(self, zone=None):
 204         return [GCEDiskType("pd-standard", "pd-standard", zone, self,
 205                             extra={"selfLink": "pd-standard"}),
 206                 GCEDiskType("local-ssd", "local-ssd", zone, self,
 207                             extra={"selfLink": "local-ssd"})]
 208
 209     def ex_get_node(self, name, zone=None):
 210         global all_nodes
 211         for n in all_nodes:
 212             if n.id == name:
 213                 return n
 214         return None
 215
 216     def ex_set_node_metadata(self, n, items):
 217         n.extra["metadata"]["items"] = items