Files
codeocean/app/models/execution_environment.rb
2021-11-01 17:12:50 +01:00

98 lines
3.3 KiB
Ruby

# frozen_string_literal: true
require File.expand_path('../../lib/active_model/validations/boolean_presence_validator', __dir__)
class ExecutionEnvironment < ApplicationRecord
include Creation
include DefaultValues
VALIDATION_COMMAND = 'whoami'
RUNNER_MANAGEMENT_PRESENT = CodeOcean::Config.new(:code_ocean).read[:runner_management].present?
BASE_URL = CodeOcean::Config.new(:code_ocean).read[:runner_management][:url] if RUNNER_MANAGEMENT_PRESENT
HEADERS = {'Content-Type' => 'application/json'}.freeze
DEFAULT_CPU_LIMIT = 20
after_initialize :set_default_values
has_many :exercises
belongs_to :file_type
has_many :error_templates
scope :with_exercises, -> { where('id IN (SELECT execution_environment_id FROM exercises)') }
validate :valid_test_setup?
validate :working_docker_image?, if: :validate_docker_image?
validates :docker_image, presence: true
validates :memory_limit,
numericality: {greater_than_or_equal_to: DockerClient::MINIMUM_MEMORY_LIMIT, only_integer: true}, presence: true
validates :network_enabled, boolean_presence: true
validates :name, presence: true
validates :permitted_execution_time, numericality: {only_integer: true}, presence: true
validates :pool_size, numericality: {only_integer: true}, presence: true
validates :run_command, presence: true
validates :cpu_limit, presence: true, numericality: {greater_than: 0, only_integer: true}
validates :exposed_ports, format: {with: /\A(([[:digit:]]{1,5},)*([[:digit:]]{1,5}))?\z/}
def set_default_values
set_default_values_if_present(permitted_execution_time: 60, pool_size: 0)
end
private :set_default_values
def to_s
name
end
def copy_to_poseidon
return false unless RUNNER_MANAGEMENT_PRESENT
url = "#{BASE_URL}/execution-environments/#{id}"
response = Faraday.put(url, to_json, HEADERS)
return true if [201, 204].include? response.status
Rails.logger.warn("Could not create execution environment in Poseidon, got response: #{response.as_json}")
false
rescue Faraday::Error => e
Rails.logger.warn("Could not create execution environment because of Faraday error: #{e.inspect}")
false
end
def to_json(*_args)
{
id: id,
image: docker_image,
prewarmingPoolSize: pool_size,
cpuLimit: cpu_limit,
memoryLimit: memory_limit,
networkAccess: network_enabled,
exposedPorts: exposed_ports_list,
}.to_json
end
def exposed_ports_list
(exposed_ports || '').split(',').map(&:to_i)
end
def valid_test_setup?
if test_command? ^ testing_framework?
errors.add(:test_command,
I18n.t('activerecord.errors.messages.together',
attribute: I18n.t('activerecord.attributes.execution_environment.testing_framework')))
end
end
private :valid_test_setup?
def validate_docker_image?
docker_image.present? && !Rails.env.test?
end
private :validate_docker_image?
def working_docker_image?
DockerClient.pull(docker_image) if DockerClient.find_image_by_tag(docker_image).present?
output = DockerClient.new(execution_environment: self).execute_arbitrary_command(VALIDATION_COMMAND)
errors.add(:docker_image, "error: #{output[:stderr]}") if output[:stderr].present?
rescue DockerClient::Error => e
errors.add(:docker_image, "error: #{e}")
end
private :working_docker_image?
end