services/nodemanager/arvnodeman/computenode/driver/azure.py

   1 #!/usr/bin/env python
   2
   3 from __future__ import absolute_import, print_function
   4
   5 import time
   6
   7 import libcloud.compute.base as cloud_base
   8 import libcloud.compute.providers as cloud_provider
   9 import libcloud.compute.types as cloud_types
  10 from libcloud.common.exceptions import BaseHTTPError
  11
  12 from . import BaseComputeNodeDriver
  13 from .. import arvados_node_fqdn, arvados_timestamp, ARVADOS_TIMEFMT
  14
  15 class ComputeNodeDriver(BaseComputeNodeDriver):
  16
  17     DEFAULT_DRIVER = cloud_provider.get_driver(cloud_types.Provider.AZURE_ARM)
  18     SEARCH_CACHE = {}
  19     CLOUD_ERRORS = BaseComputeNodeDriver.CLOUD_ERRORS + (BaseHTTPError,)
  20
  21     def __init__(self, auth_kwargs, list_kwargs, create_kwargs,
  22                  driver_class=DEFAULT_DRIVER):
  23
  24         if not list_kwargs.get("ex_resource_group"):
  25             raise Exception("Must include ex_resource_group in Cloud List configuration (list_kwargs)")
  26
  27         create_kwargs["ex_resource_group"] = list_kwargs["ex_resource_group"]
  28
  29         self.tags = {key[4:]: value
  30                      for key, value in create_kwargs.iteritems()
  31                      if key.startswith('tag_')}
  32         # filter out tags from create_kwargs
  33         create_kwargs = {key: value
  34                          for key, value in create_kwargs.iteritems()
  35                          if not key.startswith('tag_')}
  36         super(ComputeNodeDriver, self).__init__(
  37             auth_kwargs, list_kwargs, create_kwargs,
  38             driver_class)
  39
  40     def arvados_create_kwargs(self, arvados_node):
  41         cluster_id, _, node_id = arvados_node['uuid'].split('-')
  42         name = 'compute-{}-{}'.format(node_id, cluster_id)
  43         tags = {
  44             'booted_at': time.strftime(ARVADOS_TIMEFMT, time.gmtime()),
  45             'arv-ping-url': self._make_ping_url(arvados_node)
  46         }
  47         tags.update(self.tags)
  48         return {
  49             'name': name,
  50             'ex_tags': tags,
  51         }
  52
  53     def sync_node(self, cloud_node, arvados_node):
  54         try:
  55             self.real.ex_create_tags(cloud_node,
  56                                      {'hostname': arvados_node_fqdn(arvados_node)})
  57             return True
  58         except BaseHTTPError as b:
  59             return False
  60
  61     def _init_image(self, urn):
  62         return "image", self.get_image(urn)
  63
  64     def post_create_node(self, cloud_node):
  65         self.real.ex_run_command(cloud_node,
  66                                  """bash -c '
  67                                  mkdir -p /var/tmp/arv-node-data/meta-data
  68                                  echo "%s" > /var/tmp/arv-node-data/arv-ping-url
  69                                  echo "%s" > /var/tmp/arv-node-data/meta-data/instance-id
  70                                  echo "%s" > /var/tmp/arv-node-data/meta-data/instance-type
  71                                  echo "%s" > /var/tmp/arv-node-data/meta-data/local-ipv4
  72                                  '""" % (cloud_node.extra["tags"]["arv-ping-url"],
  73                                          cloud_node.id,
  74                                          cloud_node.extra["properties"]["hardwareProfile"]["vmSize"],
  75                                          cloud_node.private_ips[0]),
  76                                  timestamp=int(time.time()))
  77
  78     def list_nodes(self):
  79         # Azure only supports filtering node lists by resource group.
  80         # Do our own filtering based on tag.
  81         return [node for node in
  82                 super(ComputeNodeDriver, self).list_nodes()
  83                 if node.extra["tags"].get("arvados-class") == self.tags["arvados-class"]]
  84
  85     def broken(self, cloud_node):
  86         """Return true if libcloud has indicated the node is in a "broken" state."""
  87         # UNKNOWN means the node state is unrecognized, which in practice means some combination
  88         # of failure that the Azure libcloud driver doesn't know how to interpret.
  89         return (cloud_node.state in (cloud_types.NodeState.ERROR, cloud_types.NodeState.UNKNOWN))
  90
  91     @classmethod
  92     def node_fqdn(cls, node):
  93         return node.extra["tags"].get("hostname")
  94
  95     @classmethod
  96     def node_start_time(cls, node):
  97         return arvados_timestamp(node.extra["tags"].get("booted_at"))