X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/e768a05df9fd75cee3724e6b68cb65beeebaaa38..73872ccc5bb6b80a6049b44b0113085a9c2b6934:/services/api/app/models/container_request.rb

diff --git a/services/api/app/models/container_request.rb b/services/api/app/models/container_request.rb
index 3596bf3d67..8f3f99e7ee 100644
--- a/services/api/app/models/container_request.rb
+++ b/services/api/app/models/container_request.rb
@@ -5,31 +5,43 @@
 require 'whitelist_update'
 
 class ContainerRequest < ArvadosModel
+  include ArvadosModelUpdates
   include HasUuid
   include KindAndEtag
   include CommonApiTemplate
   include WhitelistUpdate
 
+  belongs_to :container, foreign_key: :container_uuid, primary_key: :uuid
+  belongs_to :requesting_container, {
+               class_name: 'Container',
+               foreign_key: :requesting_container_uuid,
+               primary_key: :uuid,
+             }
+
   serialize :properties, Hash
   serialize :environment, Hash
   serialize :mounts, Hash
   serialize :runtime_constraints, Hash
   serialize :command, Array
   serialize :scheduling_parameters, Hash
+  serialize :secret_mounts, Hash
 
   before_validation :fill_field_defaults, :if => :new_record?
   before_validation :validate_runtime_constraints
-  before_validation :validate_scheduling_parameters
   before_validation :set_container
+  before_validation :set_default_preemptable_scheduling_parameter
   validates :command, :container_image, :output_path, :cwd, :presence => true
   validates :output_ttl, numericality: { only_integer: true, greater_than_or_equal_to: 0 }
   validates :priority, numericality: { only_integer: true, greater_than_or_equal_to: 0, less_than_or_equal_to: 1000 }
+  validate :validate_scheduling_parameters
   validate :validate_state_change
   validate :check_update_whitelist
-  after_save :update_priority
-  after_save :finalize_if_needed
+  validate :secret_mounts_key_conflict
+  before_save :scrub_secret_mounts
   before_create :set_requesting_container_uuid
   before_destroy :set_priority_zero
+  after_save :update_priority
+  after_save :finalize_if_needed
 
   api_accessible :user, extend: :common do |t|
     t.add :command
@@ -75,14 +87,18 @@ class ContainerRequest < ArvadosModel
   AttrsPermittedAlways = [:owner_uuid, :state, :name, :description]
   AttrsPermittedBeforeCommit = [:command, :container_count_max,
   :container_image, :cwd, :environment, :filters, :mounts,
-  :output_path, :priority, :properties, :requesting_container_uuid,
+  :output_path, :priority, :properties,
   :runtime_constraints, :state, :container_uuid, :use_existing,
-  :scheduling_parameters, :output_name, :output_ttl]
+  :scheduling_parameters, :secret_mounts, :output_name, :output_ttl]
 
   def self.limit_index_columns_read
     ["mounts"]
   end
 
+  def logged_attributes
+    super.except('secret_mounts')
+  end
+
   def state_transitions
     State_transitions
   end
@@ -96,7 +112,9 @@ class ContainerRequest < ArvadosModel
     if state == Committed && Container.find_by_uuid(container_uuid).final?
       reload
       act_as_system_user do
-        finalize!
+        leave_modified_by_user_alone do
+          finalize!
+        end
       end
     end
   end
@@ -143,7 +161,7 @@ class ContainerRequest < ArvadosModel
   end
 
   def self.full_text_searchable_columns
-    super - ["mounts"]
+    super - ["mounts", "secret_mounts", "secret_mounts_md5"]
   end
 
   protected
@@ -180,6 +198,16 @@ class ContainerRequest < ArvadosModel
     end
   end
 
+  def set_default_preemptable_scheduling_parameter
+    if self.state == Committed
+      # If preemptable instances (eg: AWS Spot Instances) are allowed,
+      # automatically ask them on non-child containers by default.
+      if Rails.configuration.preemptable_instances and !self.requesting_container_uuid.nil?
+        self.scheduling_parameters['preemptable'] ||= true
+      end
+    end
+  end
+
   def validate_runtime_constraints
     case self.state
     when Committed
@@ -206,6 +234,9 @@ class ContainerRequest < ArvadosModel
             scheduling_parameters['partitions'].size)
             errors.add :scheduling_parameters, "partitions must be an array of strings"
       end
+      if !Rails.configuration.preemptable_instances and scheduling_parameters['preemptable']
+        errors.add :scheduling_parameters, "preemptable instances are not allowed"
+      end
     end
   end
 
@@ -214,7 +245,7 @@ class ContainerRequest < ArvadosModel
 
     if self.new_record? || self.state_was == Uncommitted
       # Allow create-and-commit in a single operation.
-      permitted.push *AttrsPermittedBeforeCommit
+      permitted.push(*AttrsPermittedBeforeCommit)
     end
 
     case self.state
@@ -237,12 +268,13 @@ class ContainerRequest < ArvadosModel
       end
 
     when Final
-      if self.state_changed? and not current_user.andand.is_admin
-        self.errors.add :state, "of container request can only be set to Final by system."
-      end
-
       if self.state_was == Committed
-        permitted.push :output_uuid, :log_uuid
+        # "Cancel" means setting priority=0, state=Committed
+        permitted.push :priority
+
+        if current_user.andand.is_admin
+          permitted.push :output_uuid, :log_uuid
+        end
       end
 
     end
@@ -250,32 +282,41 @@ class ContainerRequest < ArvadosModel
     super(permitted)
   end
 
-  def update_priority
-    if self.state_changed? or
-        self.priority_changed? or
-        self.container_uuid_changed?
-      act_as_system_user do
-        Container.
-          where('uuid in (?)',
-                [self.container_uuid_was, self.container_uuid].compact).
-          map(&:update_priority!)
+  def secret_mounts_key_conflict
+    secret_mounts.each do |k, v|
+      if mounts.has_key?(k)
+        errors.add(:secret_mounts, 'conflict with non-secret mounts')
+        return false
       end
     end
   end
 
+  def scrub_secret_mounts
+    if self.state == Final
+      self.secret_mounts = {}
+    end
+  end
+
+  def update_priority
+    return unless state_changed? || priority_changed? || container_uuid_changed?
+    act_as_system_user do
+      ActiveRecord::Base.connection.execute('LOCK container_requests, containers IN EXCLUSIVE MODE')
+      Container.
+        where('uuid in (?)', [self.container_uuid_was, self.container_uuid].compact).
+        map(&:update_priority!)
+    end
+  end
+
   def set_priority_zero
     self.update_attributes!(priority: 0) if self.state != Final
   end
 
   def set_requesting_container_uuid
-    return !new_record? if self.requesting_container_uuid   # already set
-
-    token_uuid = current_api_client_authorization.andand.uuid
-    container = Container.where('auth_uuid=?', token_uuid).order('created_at desc').first
-    if container
-      self.requesting_container_uuid = container.uuid
-      self.priority = container.priority
+    return if !current_api_client_authorization
+    ActiveRecord::Base.connection.execute('LOCK container_requests, containers IN EXCLUSIVE MODE')
+    if (c = Container.where('auth_uuid=?', current_api_client_authorization.uuid).select([:uuid, :priority]).first)
+      self.requesting_container_uuid = c.uuid
+      self.priority = c.priority>0 ? 1 : 0
     end
-    true
   end
 end