sdk/cwl/arvados_cwl/arvdocker.py

   1 # Copyright (C) The Arvados Authors. All rights reserved.
   2 #
   3 # SPDX-License-Identifier: Apache-2.0
   4
   5 import logging
   6 import sys
   7 import threading
   8 import copy
   9
  10 from schema_salad.sourceline import SourceLine
  11
  12 import cwltool.docker
  13 from cwltool.errors import WorkflowException
  14 import arvados.commands.keepdocker
  15
  16 logger = logging.getLogger('arvados.cwl-runner')
  17
  18 cached_lookups = {}
  19 cached_lookups_lock = threading.Lock()
  20
  21 def arv_docker_get_image(api_client, dockerRequirement, pull_image, project_uuid):
  22     """Check if a Docker image is available in Keep, if not, upload it using arv-keepdocker."""
  23
  24     if "dockerImageId" not in dockerRequirement and "dockerPull" in dockerRequirement:
  25         dockerRequirement = copy.deepcopy(dockerRequirement)
  26         dockerRequirement["dockerImageId"] = dockerRequirement["dockerPull"]
  27         if hasattr(dockerRequirement, 'lc'):
  28             dockerRequirement.lc.data["dockerImageId"] = dockerRequirement.lc.data["dockerPull"]
  29
  30     global cached_lookups
  31     global cached_lookups_lock
  32     with cached_lookups_lock:
  33         if dockerRequirement["dockerImageId"] in cached_lookups:
  34             return dockerRequirement["dockerImageId"]
  35
  36     with SourceLine(dockerRequirement, "dockerImageId", WorkflowException, logger.isEnabledFor(logging.DEBUG)):
  37         sp = dockerRequirement["dockerImageId"].split(":")
  38         image_name = sp[0]
  39         image_tag = sp[1] if len(sp) > 1 else "latest"
  40
  41         images = arvados.commands.keepdocker.list_images_in_arv(api_client, 3,
  42                                                                 image_name=image_name,
  43                                                                 image_tag=image_tag)
  44
  45         if not images:
  46             # Fetch Docker image if necessary.
  47             try:
  48                 cwltool.docker.get_image(dockerRequirement, pull_image)
  49             except OSError as e:
  50                 raise WorkflowException("While trying to get Docker image '%s', failed to execute 'docker': %s" % (dockerRequirement["dockerImageId"], e))
  51
  52             # Upload image to Arvados
  53             args = []
  54             if project_uuid:
  55                 args.append("--project-uuid="+project_uuid)
  56             args.append(image_name)
  57             args.append(image_tag)
  58             logger.info("Uploading Docker image %s:%s", image_name, image_tag)
  59             try:
  60                 arvados.commands.keepdocker.main(args, stdout=sys.stderr)
  61             except SystemExit as e:
  62                 if e.code:
  63                     raise WorkflowException("keepdocker exited with code %s" % e.code)
  64
  65             images = arvados.commands.keepdocker.list_images_in_arv(api_client, 3,
  66                                                                     image_name=image_name,
  67                                                                     image_tag=image_tag)
  68
  69         if not images:
  70             raise WorkflowException("Could not find Docker image %s:%s" % (image_name, image_tag))
  71
  72         with cached_lookups_lock:
  73             cached_lookups[dockerRequirement["dockerImageId"]] = True
  74
  75     return dockerRequirement["dockerImageId"]
  76
  77 def arv_docker_clear_cache():
  78     global cached_lookups
  79     global cached_lookups_lock
  80     with cached_lookups_lock:
  81         cached_lookups = {}