serialize :mounts, Hash
serialize :runtime_constraints, Hash
serialize :command, Array
+ serialize :scheduling_parameters, Hash
before_validation :fill_field_defaults, :if => :new_record?
+ before_validation :validate_runtime_constraints
+ before_validation :validate_scheduling_parameters
before_validation :set_container
validates :command, :container_image, :output_path, :cwd, :presence => true
validate :validate_state_change
validate :validate_change
- validate :validate_runtime_constraints
after_save :update_priority
+ after_save :finalize_if_needed
before_create :set_requesting_container_uuid
api_accessible :user, extend: :common do |t|
t.add :command
+ t.add :container_count
t.add :container_count_max
t.add :container_image
t.add :container_uuid
t.add :environment
t.add :expires_at
t.add :filters
+ t.add :log_uuid
t.add :mounts
t.add :name
+ t.add :output_name
t.add :output_path
+ t.add :output_uuid
t.add :priority
t.add :properties
t.add :requesting_container_uuid
t.add :runtime_constraints
+ t.add :scheduling_parameters
t.add :state
+ t.add :use_existing
end
# Supported states for a container request
%w(modified_by_client_uuid container_uuid requesting_container_uuid)
end
- def container_completed!
- # may implement retry logic here in the future.
- self.state = ContainerRequest::Final
- self.save!
+ def finalize_if_needed
+ if state == Committed && Container.find_by_uuid(container_uuid).final?
+ reload
+ act_as_system_user do
+ finalize!
+ end
+ end
+ end
+
+ # Finalize the container request after the container has
+ # finished/cancelled.
+ def finalize!
+ out_coll = nil
+ log_coll = nil
+ c = Container.find_by_uuid(container_uuid)
+ ['output', 'log'].each do |out_type|
+ pdh = c.send(out_type)
+ next if pdh.nil?
+ if self.output_name and out_type == 'output'
+ coll_name = self.output_name
+ else
+ coll_name = "Container #{out_type} for request #{uuid}"
+ end
+ manifest = Collection.where(portable_data_hash: pdh).first.manifest_text
+ begin
+ coll = Collection.create!(owner_uuid: owner_uuid,
+ manifest_text: manifest,
+ portable_data_hash: pdh,
+ name: coll_name,
+ properties: {
+ 'type' => out_type,
+ 'container_request' => uuid,
+ })
+ rescue ActiveRecord::RecordNotUnique => rn
+ # In case this is executed as part of a transaction: When a Postgres exception happens,
+ # the following statements on the same transaction become invalid, so a rollback is
+ # needed. One example are Unit Tests, every test is enclosed inside a transaction so
+ # that the database can be reverted before every new test starts.
+ # See: http://api.rubyonrails.org/classes/ActiveRecord/Transactions/ClassMethods.html#module-ActiveRecord::Transactions::ClassMethods-label-Exception+handling+and+rolling+back
+ ActiveRecord::Base.connection.execute 'ROLLBACK'
+ raise unless out_type == 'output' and self.output_name
+ # Postgres specific unique name check. See ApplicationController#create for
+ # a detailed explanation.
+ raise unless rn.original_exception.is_a? PG::UniqueViolation
+ err = rn.original_exception
+ detail = err.result.error_field(PG::Result::PG_DIAG_MESSAGE_DETAIL)
+ raise unless /^Key \(owner_uuid, name\)=\([a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{15}, .*?\) already exists\./.match detail
+ # Output collection name collision detected: append a timestamp.
+ coll_name = "#{self.output_name} #{Time.now.getgm.strftime('%FT%TZ')}"
+ retry
+ end
+ if out_type == 'output'
+ out_coll = coll.uuid
+ else
+ log_coll = coll.uuid
+ end
+ end
+ update_attributes!(state: Final, output_uuid: out_coll, log_uuid: log_coll)
end
protected
self.runtime_constraints ||= {}
self.mounts ||= {}
self.cwd ||= "."
+ self.container_count_max ||= Rails.configuration.container_count_max
+ self.scheduling_parameters ||= {}
end
# Create a new container (or find an existing one) to satisfy this
c_runtime_constraints = runtime_constraints_for_container
c_container_image = container_image_for_container
c = act_as_system_user do
- Container.create!(command: self.command,
- cwd: self.cwd,
- environment: self.environment,
- output_path: self.output_path,
- container_image: c_container_image,
- mounts: c_mounts,
- runtime_constraints: c_runtime_constraints)
+ c_attrs = {command: self.command,
+ cwd: self.cwd,
+ environment: self.environment,
+ output_path: self.output_path,
+ container_image: c_container_image,
+ mounts: c_mounts,
+ runtime_constraints: c_runtime_constraints}
+
+ reusable = self.use_existing ? Container.find_reusable(c_attrs) : nil
+ if not reusable.nil?
+ reusable
+ else
+ c_attrs[:scheduling_parameters] = self.scheduling_parameters
+ Container.create!(c_attrs)
+ end
end
self.container_uuid = c.uuid
end
select(:portable_data_hash).
first
if !c
- raise ActiveRecord::RecordNotFound.new "cannot mount collection #{uuid.inspect}: not found"
+ raise ArvadosModel::UnresolvableContainerError.new "cannot mount collection #{uuid.inspect}: not found"
end
if mount['portable_data_hash'].nil?
# PDH not supplied by client
def container_image_for_container
coll = Collection.for_latest_docker_image(container_image)
if !coll
- raise ActiveRecord::RecordNotFound.new "docker image #{container_image.inspect} not found"
+ raise ArvadosModel::UnresolvableContainerError.new "docker image #{container_image.inspect} not found"
end
return coll.portable_data_hash
end
if state_changed? and state == Committed and container_uuid.nil?
resolve
end
+ if self.container_uuid != self.container_uuid_was
+ if self.container_count_changed?
+ errors.add :container_count, "cannot be updated directly."
+ return false
+ else
+ self.container_count += 1
+ end
+ end
end
def validate_runtime_constraints
errors.add :runtime_constraints, "#{k} must be a positive integer"
end
end
+
+ if runtime_constraints.include? 'keep_cache_ram' and
+ (!runtime_constraints['keep_cache_ram'].is_a?(Integer) or
+ runtime_constraints['keep_cache_ram'] <= 0)
+ errors.add :runtime_constraints, "keep_cache_ram must be a positive integer"
+ elsif !runtime_constraints.include? 'keep_cache_ram'
+ runtime_constraints['keep_cache_ram'] = Rails.configuration.container_default_keep_cache_ram
+ end
+ end
+ end
+
+ def validate_scheduling_parameters
+ if self.state == Committed
+ if scheduling_parameters.include? 'partitions' and
+ (!scheduling_parameters['partitions'].is_a?(Array) ||
+ scheduling_parameters['partitions'].reject{|x| !x.is_a?(String)}.size !=
+ scheduling_parameters['partitions'].size)
+ errors.add :scheduling_parameters, "partitions must be an array of strings"
+ end
end
end
:container_image, :cwd, :description, :environment,
:filters, :mounts, :name, :output_path, :priority,
:properties, :requesting_container_uuid, :runtime_constraints,
- :state, :container_uuid
+ :state, :container_uuid, :use_existing, :scheduling_parameters,
+ :output_name
when Committed
if container_uuid.nil?
end
# Can update priority, container count, name and description
- permitted.push :priority, :container_count_max, :container_uuid, :name, :description
+ permitted.push :priority, :container_count, :container_count_max, :container_uuid,
+ :name, :description
if self.state_changed?
# Allow create-and-commit in a single operation.
permitted.push :command, :container_image, :cwd, :description, :environment,
:filters, :mounts, :name, :output_path, :properties,
:requesting_container_uuid, :runtime_constraints,
- :state, :container_uuid
+ :state, :container_uuid, :use_existing, :scheduling_parameters,
+ :output_name
end
when Final
errors.add :state, "of container request can only be set to Final by system."
end
- if self.state_changed? || self.name_changed? || self.description_changed?
- permitted.push :state, :name, :description
+ if self.state_changed? || self.name_changed? || self.description_changed? || self.output_uuid_changed? || self.log_uuid_changed?
+ permitted.push :state, :name, :description, :output_uuid, :log_uuid
else
errors.add :state, "does not allow updates"
end
end
def set_requesting_container_uuid
- return true if self.requesting_container_uuid # already set
+ 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