1 # Copyright (C) The Arvados Authors. All rights reserved.
3 # SPDX-License-Identifier: AGPL-3.0
5 require 'whitelist_update'
7 class ContainerRequest < ArvadosModel
8 include ArvadosModelUpdates
11 include CommonApiTemplate
12 include WhitelistUpdate
14 belongs_to :container, foreign_key: :container_uuid, primary_key: :uuid
15 belongs_to :requesting_container, {
16 class_name: 'Container',
17 foreign_key: :requesting_container_uuid,
21 serialize :properties, Hash
22 serialize :environment, Hash
23 serialize :mounts, Hash
24 serialize :runtime_constraints, Hash
25 serialize :command, Array
26 serialize :scheduling_parameters, Hash
27 serialize :secret_mounts, Hash
29 before_validation :fill_field_defaults, :if => :new_record?
30 before_validation :validate_runtime_constraints
31 before_validation :set_default_preemptible_scheduling_parameter
32 before_validation :set_container
33 validates :command, :container_image, :output_path, :cwd, :presence => true
34 validates :output_ttl, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
35 validates :priority, numericality: { only_integer: true, greater_than_or_equal_to: 0, less_than_or_equal_to: 1000 }
36 validate :validate_scheduling_parameters
37 validate :validate_state_change
38 validate :check_update_whitelist
39 validate :secret_mounts_key_conflict
40 before_save :scrub_secret_mounts
41 before_create :set_requesting_container_uuid
42 before_destroy :set_priority_zero
43 after_save :update_priority
44 after_save :finalize_if_needed
46 api_accessible :user, extend: :common do |t|
48 t.add :container_count
49 t.add :container_count_max
50 t.add :container_image
66 t.add :requesting_container_uuid
67 t.add :runtime_constraints
68 t.add :scheduling_parameters
73 # Supported states for a container request
76 (Uncommitted = 'Uncommitted'),
77 (Committed = 'Committed'),
82 nil => [Uncommitted, Committed],
83 Uncommitted => [Committed],
87 AttrsPermittedAlways = [:owner_uuid, :state, :name, :description, :properties]
88 AttrsPermittedBeforeCommit = [:command, :container_count_max,
89 :container_image, :cwd, :environment, :filters, :mounts,
90 :output_path, :priority,
91 :runtime_constraints, :state, :container_uuid, :use_existing,
92 :scheduling_parameters, :secret_mounts, :output_name, :output_ttl]
94 def self.limit_index_columns_read
99 super.except('secret_mounts')
102 def state_transitions
106 def skip_uuid_read_permission_check
107 # XXX temporary until permissions are sorted out.
108 %w(modified_by_client_uuid container_uuid requesting_container_uuid)
111 def finalize_if_needed
112 if state == Committed && Container.find_by_uuid(container_uuid).final?
114 act_as_system_user do
115 leave_modified_by_user_alone do
122 # Finalize the container request after the container has
123 # finished/cancelled.
127 c = Container.find_by_uuid(container_uuid)
128 ['output', 'log'].each do |out_type|
129 pdh = c.send(out_type)
131 coll_name = "Container #{out_type} for request #{uuid}"
133 if out_type == 'output'
135 coll_name = self.output_name
137 if self.output_ttl > 0
138 trash_at = db_current_time + self.output_ttl
141 manifest = Collection.where(portable_data_hash: pdh).first.manifest_text
143 coll = Collection.new(owner_uuid: owner_uuid,
144 manifest_text: manifest,
145 portable_data_hash: pdh,
151 'container_request' => uuid,
153 coll.save_with_unique_name!
154 if out_type == 'output'
160 update_attributes!(state: Final, output_uuid: out_coll, log_uuid: log_coll)
163 def self.full_text_searchable_columns
164 super - ["mounts", "secret_mounts", "secret_mounts_md5"]
169 def fill_field_defaults
170 self.state ||= Uncommitted
171 self.environment ||= {}
172 self.runtime_constraints ||= {}
175 self.container_count_max ||= Rails.configuration.container_count_max
176 self.scheduling_parameters ||= {}
177 self.output_ttl ||= 0
182 if (container_uuid_changed? and
183 not current_user.andand.is_admin and
184 not container_uuid.nil?)
185 errors.add :container_uuid, "can only be updated to nil."
188 if state_changed? and state == Committed and container_uuid.nil?
189 self.container_uuid = Container.resolve(self).uuid
191 if self.container_uuid != self.container_uuid_was
192 if self.container_count_changed?
193 errors.add :container_count, "cannot be updated directly."
196 self.container_count += 1
201 def set_default_preemptible_scheduling_parameter
202 c = get_requesting_container()
203 if self.state == Committed
204 # If preemptible instances (eg: AWS Spot Instances) are allowed,
205 # ask them on child containers by default.
206 if Rails.configuration.preemptible_instances and !c.nil? and
207 self.scheduling_parameters['preemptible'].nil?
208 self.scheduling_parameters['preemptible'] = true
213 def validate_runtime_constraints
218 ['keep_cache_ram', false]].each do |k, required|
219 if !required && !runtime_constraints.include?(k)
222 v = runtime_constraints[k]
223 unless (v.is_a?(Integer) && v > 0)
224 errors.add(:runtime_constraints,
225 "[#{k}]=#{v.inspect} must be a positive integer")
231 def validate_scheduling_parameters
232 if self.state == Committed
233 if scheduling_parameters.include? 'partitions' and
234 (!scheduling_parameters['partitions'].is_a?(Array) ||
235 scheduling_parameters['partitions'].reject{|x| !x.is_a?(String)}.size !=
236 scheduling_parameters['partitions'].size)
237 errors.add :scheduling_parameters, "partitions must be an array of strings"
239 if !Rails.configuration.preemptible_instances and scheduling_parameters['preemptible']
240 errors.add :scheduling_parameters, "preemptible instances are not allowed"
242 if scheduling_parameters.include? 'max_run_time' and
243 (!scheduling_parameters['max_run_time'].is_a?(Integer) ||
244 scheduling_parameters['max_run_time'] < 0)
245 errors.add :scheduling_parameters, "max_run_time must be positive integer"
250 def check_update_whitelist
251 permitted = AttrsPermittedAlways.dup
253 if self.new_record? || self.state_was == Uncommitted
254 # Allow create-and-commit in a single operation.
255 permitted.push(*AttrsPermittedBeforeCommit)
260 permitted.push :priority, :container_count_max, :container_uuid
262 if self.container_uuid.nil?
263 self.errors.add :container_uuid, "has not been resolved to a container."
266 if self.priority.nil?
267 self.errors.add :priority, "cannot be nil"
270 # Allow container count to increment by 1
271 if (self.container_uuid &&
272 self.container_uuid != self.container_uuid_was &&
273 self.container_count == 1 + (self.container_count_was || 0))
274 permitted.push :container_count
278 if self.state_was == Committed
279 # "Cancel" means setting priority=0, state=Committed
280 permitted.push :priority
282 if current_user.andand.is_admin
283 permitted.push :output_uuid, :log_uuid
292 def secret_mounts_key_conflict
293 secret_mounts.each do |k, v|
294 if mounts.has_key?(k)
295 errors.add(:secret_mounts, 'conflict with non-secret mounts')
301 def scrub_secret_mounts
302 if self.state == Final
303 self.secret_mounts = {}
308 return unless state_changed? || priority_changed? || container_uuid_changed?
309 act_as_system_user do
311 where('uuid in (?)', [self.container_uuid_was, self.container_uuid].compact).
312 map(&:update_priority!)
316 def set_priority_zero
317 self.update_attributes!(priority: 0) if self.state != Final
320 def set_requesting_container_uuid
321 c = get_requesting_container()
323 self.requesting_container_uuid = c.uuid
324 self.priority = c.priority>0 ? 1 : 0
328 def get_requesting_container
329 return self.requesting_container_uuid if !self.requesting_container_uuid.nil?
330 return if !current_api_client_authorization
331 if (c = Container.where('auth_uuid=?', current_api_client_authorization.uuid).select([:uuid, :priority]).first)