Class: Hako::Schedulers::Ecs
- Inherits:
-
Hako::Scheduler
- Object
- Hako::Scheduler
- Hako::Schedulers::Ecs
- Defined in:
- lib/hako/schedulers/ecs.rb
Defined Under Namespace
Classes: NoTasksStarted
Constant Summary collapse
- DEFAULT_CLUSTER =
'default'
- DEFAULT_FRONT_PORT =
10000
- MIN_WAIT_TASK_INTERVAL =
1
- MAX_WAIT_TASK_INTERVAL =
120
- TASK_ID_RE =
/\(task ([\h-]+)\)\.\z/.freeze
- RUN_TASK_INTERVAL =
10
- MIN_ASG_INTERVAL =
1
- MAX_ASG_INTERVAL =
120
Instance Attribute Summary collapse
-
#task ⇒ Object
readonly
Returns the value of attribute task.
Instance Method Summary collapse
- #call_rollback_started(task_definition, target_definition) ⇒ nil private
- #check_secrets(container_definition) ⇒ nil private
- #configure(options) ⇒ Object
- #create_definition(name, container) ⇒ Hash private
- #create_definitions(containers) ⇒ nil private
- #create_initial_service(task_definition_arn, front_port) ⇒ Aws::ECS::Types::Service private
- #deploy(containers) ⇒ nil
- #describe_service ⇒ Aws::ECS::Types::Service? private
- #describe_task_definition(family) ⇒ Object private
- #determine_front_port ⇒ Fixnum private
- #different_definition?(expected_container, actual_container) ⇒ Boolean private
- #different_volume?(expected_volume, actual_volume) ⇒ Boolean private
- #ec2_client ⇒ Aws::EC2::Client private
- #ecs_client ⇒ Aws::ECS::Client private
- #ecs_elb_client ⇒ EcsElb, EcsElbV2 private
- #extract_task_id(message) ⇒ String? private
- #find_front_port(service) ⇒ Fixnum? private
- #find_latest_event_id(events) ⇒ String? private
- #find_rollback_target(task_definition) ⇒ String private
- #has_capacity?(task_definition, container_instances) ⇒ Boolean private
- #new_front_port ⇒ Fixnum private
-
#on_no_tasks_started(task_definition) ⇒ Boolean
private
True if the capacity is reserved.
-
#oneshot(containers, commands, env, no_wait: false, overrides: nil) ⇒ Integer
Returns exit code.
- #overrides_option(commands, env, overrides) ⇒ Object private
- #poll_task_status_from_ecs(task) ⇒ Hash<String, Aws::ECS::Types::Container> private
-
#poll_task_status_from_s3(task) ⇒ Hash<String, Aws::ECS::Types::Container>
private
Get stopped container status from S3.
- #print_definition_in_cli_format(definition, additional_env: {}, overrides: nil) ⇒ nil private
- #print_volume_definition_in_cli_format(definition) ⇒ nil private
- #register_task_definition(definitions) ⇒ Array<Boolean, Aws::ECS::Types::TaskDefinition> private
-
#register_task_definition_for_oneshot(definitions) ⇒ Array<Boolean, Aws::ECS::Types::TaskDefinition]
private
Array<Boolean, Aws::ECS::Types::TaskDefinition].
- #remove ⇒ nil
- #report_container_instance(container_instance_arn) ⇒ nil private
- #report_task_diagnostics(task) ⇒ nil private
- #rollback ⇒ Object
- #run_task(task_definition, commands, env, overrides) ⇒ Aws::ECS::Types::Task private
- #service_changed?(service, params) ⇒ Boolean private
- #ssm_client ⇒ Aws::SSM::Client private
- #status ⇒ nil
- #stop ⇒ nil
- #stop_oneshot ⇒ nil
-
#task_definition_changed?(desired_definitions, actual_definition) ⇒ Array<Boolean]
private
Array<Boolean].
- #try_scale_out_with_as(task_definition) ⇒ Object private
- #try_scale_out_with_sns(task_definition) ⇒ Object private
- #update_service(current_service, task_definition_arn) ⇒ Aws::ECS::Types::Service, Symbol private
- #volumes_definition ⇒ Array<Hash> private
- #wait_for_oneshot_finish ⇒ Fixnum private
- #wait_for_ready(service) ⇒ Boolean private
- #wait_for_task(task) ⇒ Hash<String, Aws::ECS::Types::Container> private
- #warn_placement_policy_change(service) ⇒ nil private
- #warn_service_registries_change(service) ⇒ void private
Methods inherited from Hako::Scheduler
#initialize, #validation_error!
Constructor Details
This class inherits a constructor from Hako::Scheduler
Instance Attribute Details
#task ⇒ Object (readonly)
Returns the value of attribute task.
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# File 'lib/hako/schedulers/ecs.rb', line 29 def task @task end |
Instance Method Details
#call_rollback_started(task_definition, target_definition) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1390 def call_rollback_started(task_definition, target_definition) current_app = task_definition.container_definitions.find { |c| c.name == 'app' } target_app = ecs_client.describe_task_definition(task_definition: target_definition).task_definition.container_definitions.find { |c| c.name == 'app' } if current_app && target_app @scripts.each { |script| script.rollback_started(current_app.image, target_app.image) } else Hako.logger.warn("Cannot find image_tag. current_app=#{current_app.inspect} target_app=#{target_app.inspect}. Skip calling Script#rollback_started") end nil end |
#check_secrets(container_definition) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1332 def check_secrets(container_definition) parameter_names = (container_definition[:secrets] || []).map { |secret| secret.fetch(:value_from) } invalid_parameter_names = parameter_names.each_slice(10).flat_map do |names| names = names.map do |name| if name.start_with?('arn:') name.slice(%r{:parameter(/.+)\z}, 1) else name end end ssm_client.get_parameters(names: names).invalid_parameters end unless invalid_parameter_names.empty? raise Error.new("Invalid parameters for secrets: #{invalid_parameter_names}") end nil end |
#configure(options) ⇒ Object
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# File 'lib/hako/schedulers/ecs.rb', line 32 def configure() @cluster = .fetch('cluster', DEFAULT_CLUSTER) @desired_count = .fetch('desired_count', nil) @region = .fetch('region') { validation_error!('region must be set') } @role = .fetch('role', nil) @task_role_arn = .fetch('task_role_arn', nil) @ecs_elb_options = .fetch('elb', nil) @ecs_elb_v2_options = .fetch('elb_v2', nil) if @ecs_elb_options && @ecs_elb_v2_options validation_error!('Cannot specify both elb and elb_v2') end @network_mode = .fetch('network_mode', nil) if @network_mode == 'awsvpc' && @ecs_elb_v2_options # awsvpc network mode requires ELB target group with target_type=ip @ecs_elb_v2_options['target_type'] = 'ip' end @dynamic_port_mapping = .fetch('dynamic_port_mapping', @ecs_elb_options.nil?) @health_check_grace_period_seconds = .fetch('health_check_grace_period_seconds') do @ecs_elb_options || @ecs_elb_v2_options ? 0 : nil end if .key?('autoscaling') @autoscaling = EcsAutoscaling.new(.fetch('autoscaling'), @region, ecs_elb_client, dry_run: @dry_run) end @autoscaling_group_for_oneshot = .fetch('autoscaling_group_for_oneshot', nil) @autoscaling_topic_for_oneshot = .fetch('autoscaling_topic_for_oneshot', nil) if @autoscaling_topic_for_oneshot && !@autoscaling_group_for_oneshot validation_error!('autoscaling_group_for_oneshot must be set when autoscaling_topic_for_oneshot is set') end @oneshot_notification_prefix = .fetch('oneshot_notification_prefix', nil) if .key?('deployment_configuration') @deployment_configuration = {} %i[maximum_percent minimum_healthy_percent].each do |key| @deployment_configuration[key] = .fetch('deployment_configuration')[key.to_s] end else @deployment_configuration = nil end @placement_constraints = .fetch('placement_constraints', []) @placement_strategy = .fetch('placement_strategy', []) @scheduling_strategy = .fetch('scheduling_strategy', nil) @execution_role_arn = .fetch('execution_role_arn', nil) @cpu = .fetch('cpu', nil) @memory = .fetch('memory', nil) @requires_compatibilities = .fetch('requires_compatibilities', nil) @launch_type = .fetch('launch_type', nil) @platform_version = .fetch('platform_version', nil) if .key?('network_configuration') network_configuration = .fetch('network_configuration') if network_configuration.key?('awsvpc_configuration') awsvpc_configuration = network_configuration.fetch('awsvpc_configuration') @network_configuration = { awsvpc_configuration: { subnets: awsvpc_configuration.fetch('subnets'), security_groups: awsvpc_configuration.fetch('security_groups', nil), assign_public_ip: awsvpc_configuration.fetch('assign_public_ip', nil), }, } end end if ['service_discovery'] @service_discovery = EcsServiceDiscovery.new(.fetch('service_discovery'), @region, dry_run: @dry_run) end @started_at = nil @container_instance_arn = nil end |
#create_definition(name, container) ⇒ Hash (private)
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# File 'lib/hako/schedulers/ecs.rb', line 627 def create_definition(name, container) environment = container.env.map { |k, v| { name: k, value: v } } { name: name, image: container.image_tag, cpu: container.cpu, memory: container.memory, memory_reservation: container.memory_reservation, links: container.links, port_mappings: container.port_mappings, essential: container.essential, environment: environment, secrets: container.secrets, docker_labels: container.docker_labels, mount_points: container.mount_points, entry_point: container.entry_point, command: container.command, privileged: container.privileged, linux_parameters: container.linux_parameters, depends_on: container.depends_on, volumes_from: container.volumes_from, user: container.user, log_configuration: container.log_configuration, health_check: container.health_check, ulimits: container.ulimits, extra_hosts: container.extra_hosts, readonly_root_filesystem: container.readonly_root_filesystem, docker_security_options: container., system_controls: container.system_controls, } end |
#create_definitions(containers) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 549 def create_definitions(containers) containers.map do |name, container| create_definition(name, container) end end |
#create_initial_service(task_definition_arn, front_port) ⇒ Aws::ECS::Types::Service (private)
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# File 'lib/hako/schedulers/ecs.rb', line 887 def create_initial_service(task_definition_arn, front_port) params = { cluster: @cluster, service_name: @app_id, task_definition: task_definition_arn, role: @role, deployment_configuration: @deployment_configuration, placement_constraints: @placement_constraints, placement_strategy: @placement_strategy, scheduling_strategy: @scheduling_strategy, launch_type: @launch_type, platform_version: @platform_version, network_configuration: @network_configuration, health_check_grace_period_seconds: @health_check_grace_period_seconds, } if @scheduling_strategy != 'DAEMON' params[:desired_count] = 0 end if ecs_elb_client.find_or_create_load_balancer(front_port) params[:load_balancers] = [ecs_elb_client.load_balancer_params_for_service] end if @service_discovery @service_discovery.apply params[:service_registries] = @service_discovery.service_registries end ecs_client.create_service(params).service end |
#deploy(containers) ⇒ nil
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# File 'lib/hako/schedulers/ecs.rb', line 101 def deploy(containers) if @desired_count.nil? && @scheduling_strategy != 'DAEMON' validation_error!('desired_count must be set') end front_port = determine_front_port unless @dry_run ecs_elb_client.find_or_create_load_balancer(front_port) end @scripts.each { |script| script.deploy_started(containers, front_port) } definitions = create_definitions(containers) if @dry_run volumes_definition.each do |d| print_volume_definition_in_cli_format(d) end definitions.each do |d| print_definition_in_cli_format(d) check_secrets(d) end if @autoscaling @autoscaling.apply(Aws::ECS::Types::Service.new(cluster_arn: @cluster, service_name: @app_id)) end ecs_elb_client.modify_attributes if @service_discovery @service_discovery.apply end else current_service = describe_service task_definition_changed, task_definition = register_task_definition(definitions) if task_definition_changed Hako.logger.info "Registered task definition: #{task_definition.task_definition_arn}" else Hako.logger.info "Task definition isn't changed: #{task_definition.task_definition_arn}" end current_service ||= create_initial_service(task_definition.task_definition_arn, front_port) service = update_service(current_service, task_definition.task_definition_arn) if service == :noop Hako.logger.info "Service isn't changed" if @autoscaling @autoscaling.apply(current_service) end ecs_elb_client.modify_attributes if @service_discovery @service_discovery.apply end else Hako.logger.info "Updated service: #{service.service_arn}" if @autoscaling @autoscaling.apply(service) end ecs_elb_client.modify_attributes if @service_discovery @service_discovery.apply end unless wait_for_ready(service) @scripts.each { |script| script.deploy_failed(containers, task_ids: @started_task_ids) } if task_definition_changed Hako.logger.error("Rolling back to #{current_service.task_definition}") update_service(service, current_service.task_definition) ecs_client.deregister_task_definition(task_definition: service.task_definition) Hako.logger.debug "Deregistered #{service.task_definition}" end raise Error.new('Deployment cancelled') end end Hako.logger.info 'Deployment completed' end end |
#describe_service ⇒ Aws::ECS::Types::Service? (private)
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# File 'lib/hako/schedulers/ecs.rb', line 394 def describe_service service = ecs_client.describe_services(cluster: @cluster, services: [@app_id]).services[0] if service && service.status != 'INACTIVE' service end end |
#describe_task_definition(family) ⇒ Object (private)
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# File 'lib/hako/schedulers/ecs.rb', line 617 def describe_task_definition(family) ecs_client.describe_task_definition(task_definition: family).task_definition rescue Aws::ECS::Errors::ClientException # Task definition does not exist nil end |
#determine_front_port ⇒ Fixnum (private)
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# File 'lib/hako/schedulers/ecs.rb', line 402 def determine_front_port if @network_mode == 'awsvpc' # When networkMode=awsvpc, the host ports and container ports in port mappings must match return nil elsif @dynamic_port_mapping return 0 end if @dry_run return DEFAULT_FRONT_PORT end service = describe_service if service find_front_port(service) else new_front_port end end |
#different_definition?(expected_container, actual_container) ⇒ Boolean (private)
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# File 'lib/hako/schedulers/ecs.rb', line 521 def different_definition?(expected_container, actual_container) EcsDefinitionComparator.new(expected_container).different?(actual_container) end |
#different_volume?(expected_volume, actual_volume) ⇒ Boolean (private)
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# File 'lib/hako/schedulers/ecs.rb', line 514 def different_volume?(expected_volume, actual_volume) EcsVolumeComparator.new(expected_volume).different?(actual_volume) end |
#ec2_client ⇒ Aws::EC2::Client (private)
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# File 'lib/hako/schedulers/ecs.rb', line 374 def ec2_client @ec2_client ||= Aws::EC2::Client.new(region: @region) end |
#ecs_client ⇒ Aws::ECS::Client (private)
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# File 'lib/hako/schedulers/ecs.rb', line 369 def ecs_client @ecs_client ||= Aws::ECS::Client.new(region: @region) end |
#ecs_elb_client ⇒ EcsElb, EcsElbV2 (private)
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# File 'lib/hako/schedulers/ecs.rb', line 384 def ecs_elb_client @ecs_elb_client ||= if @ecs_elb_options EcsElb.new(@app_id, @region, @ecs_elb_options, dry_run: @dry_run) else EcsElbV2.new(@app_id, @region, @ecs_elb_v2_options, dry_run: @dry_run) end end |
#extract_task_id(message) ⇒ String? (private)
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# File 'lib/hako/schedulers/ecs.rb', line 994 def extract_task_id() .slice(TASK_ID_RE, 1) end |
#find_front_port(service) ⇒ Fixnum? (private)
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# File 'lib/hako/schedulers/ecs.rb', line 445 def find_front_port(service) task_definition = ecs_client.describe_task_definition(task_definition: service.task_definition).task_definition container_definitions = {} task_definition.container_definitions.each do |c| container_definitions[c.name] = c end if container_definitions['front'] container_definitions['front'].port_mappings[0].host_port end end |
#find_latest_event_id(events) ⇒ String? (private)
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# File 'lib/hako/schedulers/ecs.rb', line 983 def find_latest_event_id(events) if events.empty? nil else events[0].id end end |
#find_rollback_target(task_definition) ⇒ String (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1010 def find_rollback_target(task_definition) if task_definition.status != 'ACTIVE' raise 'Cannot find rollback target from INACTIVE task_definition!' end arn_found = false ecs_client.list_task_definitions(family_prefix: task_definition.family, status: 'ACTIVE', sort: 'DESC').each do |page| page.task_definition_arns.each do |arn| if arn_found return arn elsif arn == task_definition.task_definition_arn arn_found = true end end end raise "Unable to find rollback target. #{task_definition.task_definition_arn} is INACTIVE?" end |
#has_capacity?(task_definition, container_instances) ⇒ Boolean (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1130 def has_capacity?(task_definition, container_instances) required_cpu = task_definition.cpu && task_definition.cpu.to_i required_cpu ||= task_definition.container_definitions.inject(0) { |cpu, d| cpu + d.cpu } required_memory = task_definition.memory && task_definition.memory.to_i required_memory ||= task_definition.container_definitions.inject(0) { |memory, d| memory + (d.memory_reservation || d.memory) } container_instances.any? do |ci| cpu = ci.remaining_resources.find { |r| r.name == 'CPU' }.integer_value memory = ci.remaining_resources.find { |r| r.name == 'MEMORY' }.integer_value required_cpu <= cpu && required_memory <= memory end end |
#new_front_port ⇒ Fixnum (private)
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# File 'lib/hako/schedulers/ecs.rb', line 422 def new_front_port max_port = -1 ecs_client.list_services(cluster: @cluster).each do |page| unless page.service_arns.empty? ecs_client.describe_services(cluster: @cluster, services: page.service_arns).services.each do |s| if s.status != 'INACTIVE' port = find_front_port(s) if port max_port = [max_port, port].max end end end end end if max_port == -1 DEFAULT_FRONT_PORT else max_port + 1 end end |
#on_no_tasks_started(task_definition) ⇒ Boolean (private)
Returns true if the capacity is reserved.
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# File 'lib/hako/schedulers/ecs.rb', line 1031 def on_no_tasks_started(task_definition) unless @autoscaling_group_for_oneshot return false end if @autoscaling_topic_for_oneshot try_scale_out_with_sns(task_definition) else try_scale_out_with_as(task_definition) end end |
#oneshot(containers, commands, env, no_wait: false, overrides: nil) ⇒ Integer
Returns exit code
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# File 'lib/hako/schedulers/ecs.rb', line 203 def oneshot(containers, commands, env, no_wait: false, overrides: nil) definitions = create_definitions(containers) if @dry_run volumes_definition.each do |d| print_volume_definition_in_cli_format(d) end definitions.each do |d| if d[:name] == 'app' d[:command] = commands end print_definition_in_cli_format(d, additional_env: env, overrides: overrides) check_secrets(d) end 0 else updated, task_definition = register_task_definition_for_oneshot(definitions) if updated Hako.logger.info "Registered task definition: #{task_definition.task_definition_arn}" else Hako.logger.info "Task definition isn't changed: #{task_definition.task_definition_arn}" end @task = run_task(task_definition, commands, env, overrides) Hako.logger.info "Started task: #{@task.task_arn}" @scripts.each { |script| script.oneshot_started(self) } if no_wait info = { cluster: @cluster, task_arn: @task.task_arn } puts JSON.dump(info) 0 else wait_for_oneshot_finish end end end |
#overrides_option(commands, env, overrides) ⇒ Object (private)
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# File 'lib/hako/schedulers/ecs.rb', line 702 def overrides_option(commands, env, overrides) { container_overrides: [ { name: 'app', cpu: overrides&.app_cpu, memory: overrides&.app_memory, memory_reservation: overrides&.app_memory_reservation, command: commands, environment: env.map { |k, v| { name: k, value: v } }, }, ], } end |
#poll_task_status_from_ecs(task) ⇒ Hash<String, Aws::ECS::Types::Container> (private)
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# File 'lib/hako/schedulers/ecs.rb', line 750 def poll_task_status_from_ecs(task) task_arn = task.task_arn interval = 1 loop do begin task = ecs_client.describe_tasks(cluster: @cluster, tasks: [task_arn]).tasks[0] rescue Aws::ECS::Errors::ThrottlingException => e Hako.logger.error(e) interval = [interval * 2, MAX_WAIT_TASK_INTERVAL].min Hako.logger.info("Retrying after #{interval} seconds...") sleep interval next end if task.nil? Hako.logger.debug "Task #{task_arn} could not be described" sleep 1 next end if @container_instance_arn != task.container_instance_arn @container_instance_arn = task.container_instance_arn report_container_instance(@container_instance_arn) end unless @started_at @started_at = task.started_at if @started_at Hako.logger.info "Started at #{@started_at}" end end Hako.logger.debug " status #{task.last_status}" if task.last_status == 'STOPPED' Hako.logger.info "Stopped at #{task.stopped_at} (reason: #{task.stopped_reason})" containers = {} task.containers.each do |c| containers[c.name] = c end return containers end interval = [interval / 2, MIN_WAIT_TASK_INTERVAL].max Hako.logger.debug("Waiting task with interval=#{interval}") sleep interval end end |
#poll_task_status_from_s3(task) ⇒ Hash<String, Aws::ECS::Types::Container> (private)
Get stopped container status from S3. The advantage is scalability; ecs:DescribeTasks is heavily rate-limited, but s3:GetObject is much more scalable. The JSON is supposed to be stored from Amazon ECS Event Stream. docs.aws.amazon.com/AmazonECS/latest/developerguide/cloudwatch_event_stream.html
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# File 'lib/hako/schedulers/ecs.rb', line 803 def poll_task_status_from_s3(task) s3 = Aws::S3::Client.new(region: @region) task_arn = task.task_arn uri = URI.parse(@oneshot_notification_prefix) prefix = uri.path.sub(%r{\A/}, '') started_key = "#{prefix}/#{task_arn}/started.json" stopped_key = "#{prefix}/#{task_arn}/stopped.json" loop do unless @started_at begin object = s3.get_object(bucket: uri.host, key: started_key) rescue Aws::S3::Errors::NoSuchKey Hako.logger.debug(" s3://#{uri.host}/#{started_key} doesn't exist") else json = JSON.parse(object.body.read) arn = json['detail']['containerInstanceArn'] if @container_instance_arn != arn @container_instance_arn = arn report_container_instance(@container_instance_arn) end @started_at = Time.parse(json['detail']['startedAt']) if @started_at Hako.logger.info "Started at #{@started_at}" end end end begin object = s3.get_object(bucket: uri.host, key: stopped_key) rescue Aws::S3::Errors::NoSuchKey Hako.logger.debug(" s3://#{uri.host}/#{stopped_key} doesn't exist") else json = JSON.parse(object.body.read) task = Aws::Json::Parser.new(Aws::ECS::Client.api.operation('describe_tasks').output.shape.member(:tasks).shape.member).parse(json['detail'].to_json) Hako.logger.info "Stopped at #{task.stopped_at} (reason: #{task.stopped_reason})" containers = {} task.containers.each do |c| containers[c.name] = c end return containers end sleep 1 end end |
#print_definition_in_cli_format(definition, additional_env: {}, overrides: nil) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1171 def print_definition_in_cli_format(definition, additional_env: {}, overrides: nil) cmd = %w[docker run] cmd << '--name' << definition.fetch(:name) if overrides && definition.fetch(:name) == 'app' cpu = overrides.app_cpu || definition.fetch(:cpu) cmd << '--cpu-shares' << cpu memory = overrides.app_memory || definition[:memory] if memory cmd << '--memory' << "#{memory}M" end memory_reservation = overrides.app_memory_reservation || definition[:memory_reservation] if memory_reservation cmd << '--memory-reservation' << "#{memory_reservation}M" end else cmd << '--cpu-shares' << definition.fetch(:cpu) if definition[:memory] cmd << '--memory' << "#{definition[:memory]}M" end if definition[:memory_reservation] cmd << '--memory-reservation' << "#{definition[:memory_reservation]}M" end end definition.fetch(:links).each do |link| cmd << '--link' << link end definition.fetch(:port_mappings).each do |port_mapping| cmd << '--publish' << "#{port_mapping.fetch(:host_port)}:#{port_mapping.fetch(:container_port)}" end definition.fetch(:docker_labels).each do |key, val| if key != 'cc.wanko.hako.version' cmd << '--label' << "#{key}=#{val}" end end definition.fetch(:mount_points).each do |mount_point| source_volume = mount_point.fetch(:source_volume) v = volumes_definition.find { |d| d[:name] == source_volume } raise "Could not find volume #{source_volume}" unless v source = v.dig(:host, :source_path) || source_volume cmd << '--volume' << "#{source}:#{mount_point.fetch(:container_path)}#{mount_point[:read_only] ? ':ro' : ''}" end definition.fetch(:volumes_from).each do |volumes_from| cmd << '--volumes-from' << "#{volumes_from.fetch(:source_container)}#{volumes_from[:read_only] ? ':ro' : ''}" end if definition[:privileged] cmd << '--privileged' end if definition[:linux_parameters] if definition[:linux_parameters][:capabilities] cp = definition[:linux_parameters][:capabilities] %i[add drop].each do |a_or_d| cp[a_or_d]&.each do |c| cmd << "--cap-#{a_or_d}=#{c}" end end end if definition[:linux_parameters][:devices] devs = definition[:linux_parameters][:devices] devs.each do |dev| opts = dev[:host_path] opts += ":#{dev[:container_path]}" if dev[:container_path] if dev[:permissions] dev[:permissions].each do || opts += [0] if %w[read write mknod].include?() end end cmd << "--device=#{opts}" end end if definition[:linux_parameters][:init_process_enabled] cmd << '--init' end if definition[:linux_parameters][:shared_memory_size] cmd << '--shm-size' << "#{definition[:linux_parameters][:shared_memory_size]}m" end definition[:linux_parameters].fetch(:tmpfs, []).each do |tmpfs| = ["size=#{tmpfs[:size]}m"].concat(tmpfs[:mount_options]) cmd << '--tmpfs' << "#{tmpfs[:container_path]}:#{.join(',')}" end end if definition[:user] cmd << '--user' << definition[:user] end if definition[:readonly_root_filesystem] cmd << '--read-only' end (definition[:docker_security_options] || []).each do |docker_security_option| cmd << '--security-opt' << docker_security_option end if definition[:entry_point] cmd << '--entrypoint' << definition[:entry_point] end if definition[:system_controls] definition.fetch(:system_controls).each do |system_control| cmd << '--sysctl' << "#{system_control.fetch(:namespace)}=#{system_control.fetch(:value)}" end end if definition[:health_check] if definition[:health_check][:command] health_check_command_type = definition[:health_check][:command][0] case health_check_command_type when 'NONE' cmd << '--no-healthcheck' when 'CMD', 'CMD-SHELL' health_check_command = definition[:health_check][:command][1..-1].join(' ') cmd << '--health-cmd' << health_check_command.inspect else raise "Health check command type #{health_check_command_type} is not supported. CMD, CMD-SHELL and NONE are supported." end end if definition[:health_check][:retries] cmd << '--health-retries' << definition[:health_check][:retries] end %i[interval timeout start_period].each do |property| if definition[:health_check][property] cmd << "--health-#{property}" << "#{definition[:health_check][property]}s" end end end cmd << "\\\n " definition.fetch(:environment).each do |env| name = env.fetch(:name) value = env.fetch(:value) # additional_env (given in command line) has priority over env (declared in definition file) unless additional_env.key?(name) cmd << '--env' << "#{name}=#{value}" cmd << "\\\n " end end (definition[:secrets] || []).each do |secret| name = secret.fetch(:name) # additional_env (given in command line) has priority over secrets (declared in definition file) unless additional_env.key?(name) cmd << '--env' << "#{name}=secret:#{secret.fetch(:value_from)}" cmd << "\\\n " end end additional_env.each do |name, value| cmd << '--env' << "#{name}=#{value}" cmd << "\\\n " end cmd << definition.fetch(:image) if definition[:command] cmd << "\\\n " cmd += definition[:command] end puts cmd.join(' ') nil end |
#print_volume_definition_in_cli_format(definition) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1144 def print_volume_definition_in_cli_format(definition) return if definition.dig(:docker_volume_configuration, :autoprovision) # From version 1.20.0 of ECS agent, a local volume is provisioned when # 'host' is specified without 'source_path'. return if definition.dig(:host, :source_path) cmd = %w[docker volume create] if (configuration = definition[:docker_volume_configuration]) if configuration[:driver] cmd << '--driver' << configuration[:driver] end (configuration[:driver_opts] || {}).each do |k, v| cmd << '--opt' << "#{k}=#{v}" end (configuration[:labels] || {}).each do |k, v| cmd << '--label' << "#{k}=#{v}" end end cmd << definition[:name] puts cmd.join(' ') nil end |
#register_task_definition(definitions) ⇒ Array<Boolean, Aws::ECS::Types::TaskDefinition> (private)
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# File 'lib/hako/schedulers/ecs.rb', line 527 def register_task_definition(definitions) current_task_definition = describe_task_definition(@app_id) if task_definition_changed?(definitions, current_task_definition) new_task_definition = ecs_client.register_task_definition( family: @app_id, task_role_arn: @task_role_arn, execution_role_arn: @execution_role_arn, network_mode: @network_mode, container_definitions: definitions, volumes: volumes_definition, requires_compatibilities: @requires_compatibilities, cpu: @cpu, memory: @memory, ).task_definition [true, new_task_definition] else [false, current_task_definition] end end |
#register_task_definition_for_oneshot(definitions) ⇒ Array<Boolean, Aws::ECS::Types::TaskDefinition] (private)
Returns Array<Boolean, Aws::ECS::Types::TaskDefinition].
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# File 'lib/hako/schedulers/ecs.rb', line 557 def register_task_definition_for_oneshot(definitions) 10.times do |i| begin family = "#{@app_id}-oneshot" current_task_definition = describe_task_definition(family) if task_definition_changed?(definitions, current_task_definition) new_task_definition = ecs_client.register_task_definition( family: family, task_role_arn: @task_role_arn, execution_role_arn: @execution_role_arn, network_mode: @network_mode, container_definitions: definitions, volumes: volumes_definition, requires_compatibilities: @requires_compatibilities, cpu: @cpu, memory: @memory, ).task_definition return [true, new_task_definition] else return [false, current_task_definition] end rescue Aws::ECS::Errors::ClientException => e if e..include?('Too many concurrent attempts to create a new revision of the specified family') Hako.logger.error(e.) interval = 2**i + rand(0.0..10.0) Hako.logger.error("Retrying register_task_definition_for_oneshot after #{interval} seconds") sleep(interval) else raise e end end end raise Error.new('Unable to register task definition for oneshot due to too many client errors') end |
#remove ⇒ nil
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# File 'lib/hako/schedulers/ecs.rb', line 326 def remove service = describe_service if service if @dry_run unless service.scheduling_strategy == 'DAEMON' Hako.logger.info "ecs_client.update_service(cluster: #{service.cluster_arn}, service: #{service.service_arn}, desired_count: 0)" end Hako.logger.info "ecs_client.delete_service(cluster: #{service.cluster_arn}, service: #{service.service_arn})" else unless service.scheduling_strategy == 'DAEMON' ecs_client.update_service(cluster: service.cluster_arn, service: service.service_arn, desired_count: 0) end ecs_client.delete_service(cluster: service.cluster_arn, service: service.service_arn) Hako.logger.info "#{service.service_arn} is deleted" end unless service.service_registries.empty? @service_discovery.remove(service.service_registries) end else puts "Service #{@app_id} doesn't exist" end ecs_elb_client.destroy end |
#report_container_instance(container_instance_arn) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 852 def report_container_instance(container_instance_arn) container_instance = ecs_client.describe_container_instances(cluster: @cluster, container_instances: [container_instance_arn]).container_instances[0] Hako.logger.info "Container instance is #{container_instance_arn} (#{container_instance.ec2_instance_id})" end |
#report_task_diagnostics(task) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1000 def report_task_diagnostics(task) Hako.logger.error("task_definition_arn=#{task.task_definition_arn} last_status=#{task.last_status}") Hako.logger.error(" stopped_reason: #{task.stopped_reason}") task.containers.sort_by(&:name).each do |container| Hako.logger.error(" Container #{container.name}: last_status=#{container.last_status} exit_code=#{container.exit_code.inspect} reason=#{container.reason.inspect}") end end |
#rollback ⇒ Object
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# File 'lib/hako/schedulers/ecs.rb', line 170 def rollback current_service = describe_service unless current_service Hako.logger.error 'Unable to find service' exit 1 end task_definition = ecs_client.describe_task_definition(task_definition: current_service.task_definition).task_definition current_definition = "#{task_definition.family}:#{task_definition.revision}" target_definition = find_rollback_target(task_definition) Hako.logger.info "Current task definition is #{current_definition}. Rolling back to #{target_definition}" call_rollback_started(task_definition, target_definition) if @dry_run Hako.logger.info 'Deployment completed (dry-run)' else service = ecs_client.update_service(cluster: current_service.cluster_arn, service: current_service.service_arn, task_definition: target_definition).service Hako.logger.info "Updated service: #{service.service_arn}" deregistered_definition = ecs_client.deregister_task_definition(task_definition: current_definition).task_definition Hako.logger.debug "Deregistered #{deregistered_definition.task_definition_arn}" wait_for_ready(service) Hako.logger.info 'Deployment completed' end end |
#run_task(task_definition, commands, env, overrides) ⇒ Aws::ECS::Types::Task (private)
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# File 'lib/hako/schedulers/ecs.rb', line 664 def run_task(task_definition, commands, env, overrides) result = ecs_client.run_task( cluster: @cluster, task_definition: task_definition.task_definition_arn, overrides: overrides_option(commands, env, overrides), count: 1, placement_constraints: @placement_constraints, started_by: 'hako oneshot', launch_type: @launch_type, platform_version: @platform_version, network_configuration: @network_configuration, ) result.failures.each do |failure| Hako.logger.error("#{failure.arn} #{failure.reason}") end if result.tasks.empty? raise NoTasksStarted.new('No tasks started') end result.tasks[0] rescue Aws::ECS::Errors::InvalidParameterException => e if e. == 'No Container Instances were found in your cluster.' && on_no_tasks_started(task_definition) retry else raise e end rescue NoTasksStarted => e if on_no_tasks_started(task_definition) retry else raise e end end |
#service_changed?(service, params) ⇒ Boolean (private)
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# File 'lib/hako/schedulers/ecs.rb', line 918 def service_changed?(service, params) EcsServiceComparator.new(params).different?(service) end |
#ssm_client ⇒ Aws::SSM::Client (private)
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# File 'lib/hako/schedulers/ecs.rb', line 379 def ssm_client @ssm_client ||= Aws::SSM::Client.new(region: @region) end |
#status ⇒ nil
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# File 'lib/hako/schedulers/ecs.rb', line 248 def status service = describe_service unless service puts 'Unavailable' exit 1 end unless service.load_balancers.empty? puts 'Load balancer:' ecs_elb_client.show_status(service.load_balancers[0]) end puts 'Deployments:' service.deployments.each do |d| abbrev_task_definition = d.task_definition.slice(%r{task-definition/(.+)\z}, 1) puts " [#{d.status}] #{abbrev_task_definition} desired_count=#{d.desired_count}, pending_count=#{d.pending_count}, running_count=#{d.running_count}" end puts 'Tasks:' ecs_client.list_tasks(cluster: @cluster, service_name: service.service_arn).each do |page| unless page.task_arns.empty? tasks = ecs_client.describe_tasks(cluster: @cluster, tasks: page.task_arns).tasks container_instance_arns = tasks.map(&:container_instance_arn).compact container_instances = {} unless container_instance_arns.empty? ecs_client.describe_container_instances(cluster: @cluster, container_instances: container_instance_arns).container_instances.each do |ci| container_instances[ci.container_instance_arn] = ci end end ec2_instances = {} unless container_instances.empty? ec2_client.describe_instances(instance_ids: container_instances.values.map(&:ec2_instance_id)).reservations.each do |r| r.instances.each do |i| ec2_instances[i.instance_id] = i end end end tasks.each do |task| task_id = task.task_arn.slice(%r{task/(.+)\z}, 1) task_definition = task.task_definition_arn.slice(%r{task-definition/(.+)\z}, 1) print " [#{task.last_status}] #{task_id} task_definition=#{task_definition}, desired_status=#{task.desired_status}" ci = container_instances[task.container_instance_arn] if ci print ", instance_id=#{ci.ec2_instance_id}" instance = ec2_instances[ci.ec2_instance_id] if instance name_tag = instance..find { |t| t.key == 'Name' } if name_tag print " (#{name_tag.value})" end end end puts end end end puts 'Events:' service.events.first(10).each do |e| puts " #{e.created_at}: #{e.}" end if @autoscaling puts 'Autoscaling:' @autoscaling.status(service) else puts 'Autoscaling: No' end if service.service_registries.empty? puts 'Service Discovery: No' else puts 'Service Discovery:' @service_discovery.status(service.service_registries) end end |
#stop ⇒ nil
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# File 'lib/hako/schedulers/ecs.rb', line 352 def stop service = describe_service if service if @dry_run Hako.logger.info("ecs_client.update_service(cluster: #{service.cluster_arn}, service: #{service.service_arn}, desired_count: 0)") else ecs_client.update_service(cluster: service.cluster_arn, service: service.service_arn, desired_count: 0) Hako.logger.info("#{service.service_arn} is stopped") end else puts "Service #{@app_id} doesn't exist" end end |
#stop_oneshot ⇒ nil
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# File 'lib/hako/schedulers/ecs.rb', line 239 def stop_oneshot if @task Hako.logger.warn "Stopping #{@task.task_arn}" ecs_client.stop_task(cluster: @cluster, task: @task.task_arn, reason: 'Stopped by hako stop_oneshot') wait_for_oneshot_finish end end |
#task_definition_changed?(desired_definitions, actual_definition) ⇒ Array<Boolean] (private)
Returns Array<Boolean].
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# File 'lib/hako/schedulers/ecs.rb', line 459 def task_definition_changed?(desired_definitions, actual_definition) if @force return true end unless actual_definition # Initial deployment return true end actual_volume_definitions = {} actual_definition.volumes.each do |v| actual_volume_definitions[v.name] = v end container_definitions = {} actual_definition.container_definitions.each do |c| container_definitions[c.name] = c end if actual_definition.task_role_arn != @task_role_arn return true end if volumes_definition.any? { |definition| different_volume?(definition, actual_volume_definitions.delete(definition[:name])) } return true end unless actual_volume_definitions.empty? return true end if desired_definitions.any? { |definition| different_definition?(definition, container_definitions.delete(definition[:name])) } return true end unless container_definitions.empty? return true end if actual_definition.cpu != @cpu return true end if actual_definition.memory != @memory return true end if actual_definition.network_mode != @network_mode return true end if actual_definition.execution_role_arn != @execution_role_arn return true end if actual_definition.requires_compatibilities != @requires_compatibilities return true end false end |
#try_scale_out_with_as(task_definition) ⇒ Object (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1067 def try_scale_out_with_as(task_definition) autoscaling = Aws::AutoScaling::Client.new(region: @region) interval = MIN_ASG_INTERVAL Hako.logger.info("Unable to start tasks. Start trying scaling out '#{@autoscaling_group_for_oneshot}'") loop do begin asg = autoscaling.describe_auto_scaling_groups(auto_scaling_group_names: [@autoscaling_group_for_oneshot]).auto_scaling_groups[0] rescue Aws::AutoScaling::Errors::Throttling => e Hako.logger.error(e) interval = [interval * 2, MAX_ASG_INTERVAL].min Hako.logger.info("Retrying after #{interval} seconds...") sleep interval next end unless asg raise Error.new("AutoScaling Group '#{@autoscaling_group_for_oneshot}' does not exist") end container_instances = ecs_client.list_container_instances(cluster: @cluster).flat_map do |c| if c.container_instance_arns.empty? [] else ecs_client.describe_container_instances(cluster: @cluster, container_instances: c.container_instance_arns).container_instances.select do |container_instance| container_instance.agent_connected && container_instance.status == 'ACTIVE' end end end if has_capacity?(task_definition, container_instances) Hako.logger.info("There's remaining capacity. Start retrying...") return true end interval = [interval / 2, MIN_ASG_INTERVAL].max # Check autoscaling group health current = asg.instances.count { |i| i.lifecycle_state == 'InService' } if asg.desired_capacity != current Hako.logger.debug("#{asg.auto_scaling_group_name} isn't in desired state. desired_capacity=#{asg.desired_capacity} in-service instances=#{current}. Retry after #{interval} seconds") sleep interval next end # Check out-of-service instances out_instances = asg.instances.map(&:instance_id) container_instances.each do |ci| out_instances.delete(ci.ec2_instance_id) end unless out_instances.empty? Hako.logger.debug("There's instances that is running but not registered as container instances: #{out_instances}. Retry after #{interval} seconds") sleep interval next end # Scale out desired = current + 1 Hako.logger.info("Increment desired_capacity of #{asg.auto_scaling_group_name} from #{current} to #{desired}") autoscaling.set_desired_capacity(auto_scaling_group_name: asg.auto_scaling_group_name, desired_capacity: desired) sleep interval end end |
#try_scale_out_with_sns(task_definition) ⇒ Object (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1044 def try_scale_out_with_sns(task_definition) required_cpu = task_definition.cpu && task_definition.cpu.to_i required_cpu ||= task_definition.container_definitions.inject(0) { |cpu, d| cpu + d.cpu } required_memory = task_definition.memory && task_definition.memory.to_i required_memory ||= task_definition.container_definitions.inject(0) { |memory, d| memory + (d.memory_reservation || d.memory) } @hako_task_id ||= SecureRandom.uuid = JSON.dump( group_name: @autoscaling_group_for_oneshot, cluster: @cluster, cpu: required_cpu, memory: required_memory, hako_task_id: @hako_task_id, ) Hako.logger.info("Unable to start tasks. Publish message to #{@autoscaling_topic_for_oneshot}: #{}") sns_client = Aws::SNS::Client.new(region: @region) resp = sns_client.publish(topic_arn: @autoscaling_topic_for_oneshot, message: ) Hako.logger.info("Sent message_id=#{resp.}") sleep(RUN_TASK_INTERVAL) true end |
#update_service(current_service, task_definition_arn) ⇒ Aws::ECS::Types::Service, Symbol (private)
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# File 'lib/hako/schedulers/ecs.rb', line 860 def update_service(current_service, task_definition_arn) params = { cluster: @cluster, service: @app_id, desired_count: @desired_count, task_definition: task_definition_arn, deployment_configuration: @deployment_configuration, platform_version: @platform_version, network_configuration: @network_configuration, health_check_grace_period_seconds: @health_check_grace_period_seconds, } if @autoscaling # Keep current desired_count if autoscaling is enabled params[:desired_count] = current_service.desired_count end warn_placement_policy_change(current_service) warn_service_registries_change(current_service) if service_changed?(current_service, params) ecs_client.update_service(params).service else :noop end end |
#volumes_definition ⇒ Array<Hash> (private)
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# File 'lib/hako/schedulers/ecs.rb', line 593 def volumes_definition @volumes_definition ||= @volumes.map do |name, volume| definition = { name: name } if volume.key?('docker_volume_configuration') configuration = volume['docker_volume_configuration'] definition[:docker_volume_configuration] = { autoprovision: configuration['autoprovision'], driver: configuration['driver'], # ECS API doesn't allow 'driver_opts' to be an empty hash. driver_opts: configuration['driver_opts'], # ECS API doesn't allow 'labels' to be an empty hash. labels: configuration['labels'], scope: configuration['scope'], } else # When neither 'host' nor 'docker_volume_configuration' is # specified, ECS API treats it as if 'host' is specified without # 'source_path'. definition[:host] = { source_path: volume['source_path'] } end definition end end |
#wait_for_oneshot_finish ⇒ Fixnum (private)
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# File 'lib/hako/schedulers/ecs.rb', line 718 def wait_for_oneshot_finish containers = wait_for_task(@task) @task = nil Hako.logger.info 'Oneshot task finished' exit_code = 127 containers.each do |name, container| if container.exit_code.nil? Hako.logger.info "#{name} has stopped without exit_code: reason=#{container.reason}" else Hako.logger.info "#{name} has stopped with exit_code=#{container.exit_code}" if name == 'app' exit_code = container.exit_code end end end exit_code end |
#wait_for_ready(service) ⇒ Boolean (private)
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# File 'lib/hako/schedulers/ecs.rb', line 924 def wait_for_ready(service) latest_event_id = find_latest_event_id(service.events) Hako.logger.debug " latest_event_id=#{latest_event_id}" started_at = if @timeout Process.clock_gettime(Process::CLOCK_MONOTONIC) end @started_task_ids = [] loop do if started_at if Process.clock_gettime(Process::CLOCK_MONOTONIC) - started_at > @timeout Hako.logger.error('Timed out') return false end end s = ecs_client.describe_services(cluster: service.cluster_arn, services: [service.service_arn]).services[0] if s.nil? Hako.logger.debug "Service #{service.service_arn} could not be described" sleep 1 next end s.events.each do |e| if e.id == latest_event_id break end Hako.logger.info "#{e.created_at}: #{e.}" task_id = extract_task_id(e.) if task_id && e..include?(' has started ') @started_task_ids << task_id end end latest_event_id = find_latest_event_id(s.events) Hako.logger.debug " latest_event_id=#{latest_event_id}, deployments=#{s.deployments}" no_active = s.deployments.all? { |d| d.status != 'ACTIVE' } primary = s.deployments.find { |d| d.status == 'PRIMARY' } if primary.desired_count * 2 < @started_task_ids.size Hako.logger.error('Some started tasks are stopped. It seems new deployment is failing to start') @started_task_ids.each_slice(100) do |task_ids| ecs_client.describe_tasks(cluster: service.cluster_arn, tasks: task_ids).tasks.each do |task| report_task_diagnostics(task) end end return false end primary_ready = primary && primary.running_count == primary.desired_count if no_active && primary_ready return true else sleep 1 end end end |
#wait_for_task(task) ⇒ Hash<String, Aws::ECS::Types::Container> (private)
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# File 'lib/hako/schedulers/ecs.rb', line 738 def wait_for_task(task) if @oneshot_notification_prefix poll_task_status_from_s3(task) else poll_task_status_from_ecs(task) end end |
#warn_placement_policy_change(service) ⇒ nil (private)
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# File 'lib/hako/schedulers/ecs.rb', line 1353 def warn_placement_policy_change(service) placement_constraints = service.placement_constraints.map do |c| h = { 'type' => c.type } unless c.expression.nil? h['expression'] = c.expression end h end if @placement_constraints != placement_constraints Hako.logger.warn "Ignoring updated placement_constraints in the configuration, because AWS doesn't allow updating them for now." end placement_strategy = service.placement_strategy.map do |s| h = { 'type' => s.type } unless s.field.nil? h['field'] = s.field.downcase end h end if @placement_strategy != placement_strategy Hako.logger.warn "Ignoring updated placement_strategy in the configuration, because AWS doesn't allow updating them for now." end end |
#warn_service_registries_change(service) ⇒ void (private)
This method returns an undefined value.
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# File 'lib/hako/schedulers/ecs.rb', line 1379 def warn_service_registries_change(service) actual_service_registries = service.service_registries.sort_by(&:registry_arn).map(&:to_h) expected_service_registries = @service_discovery&.service_registries&.sort_by { |s| s[:registry_arn] } || [] if actual_service_registries != expected_service_registries Hako.logger.warn "Ignoring updated service_registries in the configuration, because AWS doesn't allow updating them for now." end end |