X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/2b74b0ddd3068f5d336ff1f86efefab2da3a587b..cec8e2705d260c9df1042858941419a3b9160c0e:/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 ac4415bf2e..dd3ff767dd 100644
--- a/services/api/app/models/container_request.rb
+++ b/services/api/app/models/container_request.rb
@@ -28,11 +28,12 @@ class ContainerRequest < ArvadosModel
 
   before_validation :fill_field_defaults, :if => :new_record?
   before_validation :validate_runtime_constraints
-  before_validation :validate_scheduling_parameters
+  before_validation :set_default_preemptible_scheduling_parameter
   before_validation :set_container
   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
   validate :secret_mounts_key_conflict
@@ -83,10 +84,10 @@ class ContainerRequest < ArvadosModel
     Committed => [Final]
   }
 
-  AttrsPermittedAlways = [:owner_uuid, :state, :name, :description]
+  AttrsPermittedAlways = [:owner_uuid, :state, :name, :description, :properties]
   AttrsPermittedBeforeCommit = [:command, :container_count_max,
   :container_image, :cwd, :environment, :filters, :mounts,
-  :output_path, :priority, :properties,
+  :output_path, :priority,
   :runtime_constraints, :state, :container_uuid, :use_existing,
   :scheduling_parameters, :secret_mounts, :output_name, :output_ttl]
 
@@ -197,6 +198,18 @@ class ContainerRequest < ArvadosModel
     end
   end
 
+  def set_default_preemptible_scheduling_parameter
+    c = get_requesting_container()
+    if self.state == Committed
+      # If preemptible instances (eg: AWS Spot Instances) are allowed,
+      # ask them on child containers by default.
+      if Rails.configuration.preemptible_instances and !c.nil? and
+        self.scheduling_parameters['preemptible'].nil?
+          self.scheduling_parameters['preemptible'] = true
+      end
+    end
+  end
+
   def validate_runtime_constraints
     case self.state
     when Committed
@@ -223,6 +236,14 @@ class ContainerRequest < ArvadosModel
             scheduling_parameters['partitions'].size)
             errors.add :scheduling_parameters, "partitions must be an array of strings"
       end
+      if !Rails.configuration.preemptible_instances and scheduling_parameters['preemptible']
+        errors.add :scheduling_parameters, "preemptible instances are not allowed"
+      end
+      if scheduling_parameters.include? 'max_run_time' and
+        (!scheduling_parameters['max_run_time'].is_a?(Integer) ||
+          scheduling_parameters['max_run_time'] < 0)
+          errors.add :scheduling_parameters, "max_run_time must be positive integer"
+      end
     end
   end
 
@@ -286,7 +307,6 @@ class ContainerRequest < ArvadosModel
   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!)
@@ -298,11 +318,18 @@ class ContainerRequest < ArvadosModel
   end
 
   def set_requesting_container_uuid
-    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)
+    c = get_requesting_container()
+    if !c.nil?
       self.requesting_container_uuid = c.uuid
       self.priority = c.priority>0 ? 1 : 0
     end
   end
+
+  def get_requesting_container
+    return self.requesting_container_uuid if !self.requesting_container_uuid.nil?
+    return if !current_api_client_authorization
+    if (c = Container.where('auth_uuid=?', current_api_client_authorization.uuid).select([:uuid, :priority]).first)
+      return c
+    end
+  end
 end