#!/usr/bin/python # This file is part of Ansible # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import absolute_import, division, print_function __metaclass__ = type ANSIBLE_METADATA = {'metadata_version': '1.1', 'status': ['stableinterface'], 'supported_by': 'core'} DOCUMENTATION = ''' --- module: ec2 short_description: create, terminate, start or stop an instance in ec2 description: - Creates or terminates ec2 instances. - > Note: This module uses the older boto Python module to interact with the EC2 API. M(ec2) will still receive bug fixes, but no new features. Consider using the M(ec2_instance) module instead. If M(ec2_instance) does not support a feature you need that is available in M(ec2), please file a feature request. version_added: "0.9" options: key_name: description: - Key pair to use on the instance. - The SSH key must already exist in AWS in order to use this argument. - Keys can be created / deleted using the M(ec2_key) module. aliases: ['keypair'] type: str id: version_added: "1.1" description: - Identifier for this instance or set of instances, so that the module will be idempotent with respect to EC2 instances. - This identifier is valid for at least 24 hours after the termination of the instance, and should not be reused for another call later on. - For details, see the description of client token at U(https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Run_Instance_Idempotency.html). type: str group: description: - Security group (or list of groups) to use with the instance. aliases: [ 'groups' ] type: list elements: str group_id: version_added: "1.1" description: - Security group id (or list of ids) to use with the instance. type: list elements: str zone: version_added: "1.2" description: - AWS availability zone in which to launch the instance. aliases: [ 'aws_zone', 'ec2_zone' ] type: str instance_type: description: - Instance type to use for the instance, see U(https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html). - Required when creating a new instance. type: str aliases: ['type'] tenancy: version_added: "1.9" description: - An instance with a tenancy of C(dedicated) runs on single-tenant hardware and can only be launched into a VPC. - Note that to use dedicated tenancy you MUST specify a I(vpc_subnet_id) as well. - Dedicated tenancy is not available for EC2 "micro" instances. default: default choices: [ "default", "dedicated" ] type: str spot_price: version_added: "1.5" description: - Maximum spot price to bid. If not set, a regular on-demand instance is requested. - A spot request is made with this maximum bid. When it is filled, the instance is started. type: str spot_type: version_added: "2.0" description: - The type of spot request. - After being interrupted a C(persistent) spot instance will be started once there is capacity to fill the request again. default: "one-time" choices: [ "one-time", "persistent" ] type: str image: description: - I(ami) ID to use for the instance. - Required when I(state=present). type: str kernel: description: - Kernel eki to use for the instance. type: str ramdisk: description: - Ramdisk eri to use for the instance. type: str wait: description: - Wait for the instance to reach its desired state before returning. - Does not wait for SSH, see the 'wait_for_connection' example for details. type: bool default: false wait_timeout: description: - How long before wait gives up, in seconds. default: 300 type: int spot_wait_timeout: version_added: "1.5" description: - How long to wait for the spot instance request to be fulfilled. Affects 'Request valid until' for setting spot request lifespan. default: 600 type: int count: description: - Number of instances to launch. default: 1 type: int monitoring: version_added: "1.1" description: - Enable detailed monitoring (CloudWatch) for instance. type: bool default: false user_data: version_added: "0.9" description: - Opaque blob of data which is made available to the EC2 instance. type: str instance_tags: version_added: "1.0" description: - A hash/dictionary of tags to add to the new instance or for starting/stopping instance by tag; '{"key":"value"}' and '{"key":"value","key":"value"}'. type: dict placement_group: version_added: "1.3" description: - Placement group for the instance when using EC2 Clustered Compute. type: str vpc_subnet_id: version_added: "1.1" description: - the subnet ID in which to launch the instance (VPC). type: str assign_public_ip: version_added: "1.5" description: - When provisioning within vpc, assign a public IP address. Boto library must be 2.13.0+. type: bool private_ip: version_added: "1.2" description: - The private ip address to assign the instance (from the vpc subnet). type: str instance_profile_name: version_added: "1.3" description: - Name of the IAM instance profile (i.e. what the EC2 console refers to as an "IAM Role") to use. Boto library must be 2.5.0+. type: str instance_ids: version_added: "1.3" description: - "list of instance ids, currently used for states: absent, running, stopped" aliases: ['instance_id'] type: list elements: str source_dest_check: version_added: "1.6" description: - Enable or Disable the Source/Destination checks (for NAT instances and Virtual Routers). When initially creating an instance the EC2 API defaults this to C(True). type: bool termination_protection: version_added: "2.0" description: - Enable or Disable the Termination Protection. type: bool default: false instance_initiated_shutdown_behavior: version_added: "2.2" description: - Set whether AWS will Stop or Terminate an instance on shutdown. This parameter is ignored when using instance-store. images (which require termination on shutdown). default: 'stop' choices: [ "stop", "terminate" ] type: str state: version_added: "1.3" description: - Create, terminate, start, stop or restart instances. The state 'restarted' was added in Ansible 2.2. - When I(state=absent), I(instance_ids) is required. - When I(state=running), I(state=stopped) or I(state=restarted) then either I(instance_ids) or I(instance_tags) is required. default: 'present' choices: ['absent', 'present', 'restarted', 'running', 'stopped'] type: str volumes: version_added: "1.5" description: - A list of hash/dictionaries of volumes to add to the new instance. type: list elements: dict suboptions: device_name: type: str required: true description: - A name for the device (For example C(/dev/sda)). delete_on_termination: type: bool default: false description: - Whether the volume should be automatically deleted when the instance is terminated. ephemeral: type: str description: - Whether the volume should be ephemeral. - Data on ephemeral volumes is lost when the instance is stopped. - Mutually exclusive with the I(snapshot) parameter. encrypted: type: bool default: false description: - Whether the volume should be encrypted using the 'aws/ebs' KMS CMK. snapshot: type: str description: - The ID of an EBS snapshot to copy when creating the volume. - Mutually exclusive with the I(ephemeral) parameter. volume_type: type: str description: - The type of volume to create. - See U(https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumeTypes.html) for more information on the available volume types. volume_size: type: int description: - The size of the volume (in GiB). iops: type: int description: - The number of IOPS per second to provision for the volume. - Required when I(volume_type=io1). ebs_optimized: version_added: "1.6" description: - Whether instance is using optimized EBS volumes, see U(https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSOptimized.html). default: false type: bool exact_count: version_added: "1.5" description: - An integer value which indicates how many instances that match the 'count_tag' parameter should be running. Instances are either created or terminated based on this value. type: int count_tag: version_added: "1.5" description: - Used with I(exact_count) to determine how many nodes based on a specific tag criteria should be running. This can be expressed in multiple ways and is shown in the EXAMPLES section. For instance, one can request 25 servers that are tagged with "class=webserver". The specified tag must already exist or be passed in as the I(instance_tags) option. type: raw network_interfaces: version_added: "2.0" description: - A list of existing network interfaces to attach to the instance at launch. When specifying existing network interfaces, none of the I(assign_public_ip), I(private_ip), I(vpc_subnet_id), I(group), or I(group_id) parameters may be used. (Those parameters are for creating a new network interface at launch.) aliases: ['network_interface'] type: list elements: str spot_launch_group: version_added: "2.1" description: - Launch group for spot requests, see U(https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-spot-instances-work.html#spot-launch-group). type: str author: - "Tim Gerla (@tgerla)" - "Lester Wade (@lwade)" - "Seth Vidal (@skvidal)" extends_documentation_fragment: - aws - ec2 ''' EXAMPLES = ''' # Note: These examples do not set authentication details, see the AWS Guide for details. # Basic provisioning example - ec2: key_name: mykey instance_type: t2.micro image: ami-123456 wait: yes group: webserver count: 3 vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # Advanced example with tagging and CloudWatch - ec2: key_name: mykey group: databases instance_type: t2.micro image: ami-123456 wait: yes wait_timeout: 500 count: 5 instance_tags: db: postgres monitoring: yes vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # Single instance with additional IOPS volume from snapshot and volume delete on termination - ec2: key_name: mykey group: webserver instance_type: c3.medium image: ami-123456 wait: yes wait_timeout: 500 volumes: - device_name: /dev/sdb snapshot: snap-abcdef12 volume_type: io1 iops: 1000 volume_size: 100 delete_on_termination: true monitoring: yes vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # Single instance with ssd gp2 root volume - ec2: key_name: mykey group: webserver instance_type: c3.medium image: ami-123456 wait: yes wait_timeout: 500 volumes: - device_name: /dev/xvda volume_type: gp2 volume_size: 8 vpc_subnet_id: subnet-29e63245 assign_public_ip: yes count_tag: Name: dbserver exact_count: 1 # Multiple groups example - ec2: key_name: mykey group: ['databases', 'internal-services', 'sshable', 'and-so-forth'] instance_type: m1.large image: ami-6e649707 wait: yes wait_timeout: 500 count: 5 instance_tags: db: postgres monitoring: yes vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # Multiple instances with additional volume from snapshot - ec2: key_name: mykey group: webserver instance_type: m1.large image: ami-6e649707 wait: yes wait_timeout: 500 count: 5 volumes: - device_name: /dev/sdb snapshot: snap-abcdef12 volume_size: 10 monitoring: yes vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # Dedicated tenancy example - local_action: module: ec2 assign_public_ip: yes group_id: sg-1dc53f72 key_name: mykey image: ami-6e649707 instance_type: m1.small tenancy: dedicated vpc_subnet_id: subnet-29e63245 wait: yes # Spot instance example - ec2: spot_price: 0.24 spot_wait_timeout: 600 keypair: mykey group_id: sg-1dc53f72 instance_type: m1.small image: ami-6e649707 wait: yes vpc_subnet_id: subnet-29e63245 assign_public_ip: yes spot_launch_group: report_generators instance_initiated_shutdown_behavior: terminate # Examples using pre-existing network interfaces - ec2: key_name: mykey instance_type: t2.small image: ami-f005ba11 network_interface: eni-deadbeef - ec2: key_name: mykey instance_type: t2.small image: ami-f005ba11 network_interfaces: ['eni-deadbeef', 'eni-5ca1ab1e'] # Launch instances, runs some tasks # and then terminate them - name: Create a sandbox instance hosts: localhost gather_facts: False vars: keypair: my_keypair instance_type: m1.small security_group: my_securitygroup image: my_ami_id region: us-east-1 tasks: - name: Launch instance ec2: key_name: "{{ keypair }}" group: "{{ security_group }}" instance_type: "{{ instance_type }}" image: "{{ image }}" wait: true region: "{{ region }}" vpc_subnet_id: subnet-29e63245 assign_public_ip: yes register: ec2 - name: Add new instance to host group add_host: hostname: "{{ item.public_ip }}" groupname: launched loop: "{{ ec2.instances }}" - name: Wait for SSH to come up delegate_to: "{{ item.public_dns_name }}" wait_for_connection: delay: 60 timeout: 320 loop: "{{ ec2.instances }}" - name: Configure instance(s) hosts: launched become: True gather_facts: True roles: - my_awesome_role - my_awesome_test - name: Terminate instances hosts: localhost tasks: - name: Terminate instances that were previously launched ec2: state: 'absent' instance_ids: '{{ ec2.instance_ids }}' # Start a few existing instances, run some tasks # and stop the instances - name: Start sandbox instances hosts: localhost gather_facts: false vars: instance_ids: - 'i-xxxxxx' - 'i-xxxxxx' - 'i-xxxxxx' region: us-east-1 tasks: - name: Start the sandbox instances ec2: instance_ids: '{{ instance_ids }}' region: '{{ region }}' state: running wait: True vpc_subnet_id: subnet-29e63245 assign_public_ip: yes roles: - do_neat_stuff - do_more_neat_stuff - name: Stop sandbox instances hosts: localhost gather_facts: false vars: instance_ids: - 'i-xxxxxx' - 'i-xxxxxx' - 'i-xxxxxx' region: us-east-1 tasks: - name: Stop the sandbox instances ec2: instance_ids: '{{ instance_ids }}' region: '{{ region }}' state: stopped wait: True vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # # Start stopped instances specified by tag # - local_action: module: ec2 instance_tags: Name: ExtraPower state: running # # Restart instances specified by tag # - local_action: module: ec2 instance_tags: Name: ExtraPower state: restarted # # Enforce that 5 instances with a tag "foo" are running # (Highly recommended!) # - ec2: key_name: mykey instance_type: c1.medium image: ami-40603AD1 wait: yes group: webserver instance_tags: foo: bar exact_count: 5 count_tag: foo vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # # Enforce that 5 running instances named "database" with a "dbtype" of "postgres" # - ec2: key_name: mykey instance_type: c1.medium image: ami-40603AD1 wait: yes group: webserver instance_tags: Name: database dbtype: postgres exact_count: 5 count_tag: Name: database dbtype: postgres vpc_subnet_id: subnet-29e63245 assign_public_ip: yes # # count_tag complex argument examples # # instances with tag foo - ec2: count_tag: foo: # instances with tag foo=bar - ec2: count_tag: foo: bar # instances with tags foo=bar & baz - ec2: count_tag: foo: bar baz: # instances with tags foo & bar & baz=bang - ec2: count_tag: - foo - bar - baz: bang ''' import time import datetime import traceback from ast import literal_eval from distutils.version import LooseVersion from ansible.module_utils.basic import AnsibleModule from ansible.module_utils.ec2 import get_aws_connection_info, ec2_argument_spec, ec2_connect from ansible.module_utils.six import get_function_code, string_types from ansible.module_utils._text import to_bytes, to_text try: import boto.ec2 from boto.ec2.blockdevicemapping import BlockDeviceType, BlockDeviceMapping from boto.exception import EC2ResponseError from boto import connect_ec2_endpoint from boto import connect_vpc HAS_BOTO = True except ImportError: HAS_BOTO = False def find_running_instances_by_count_tag(module, ec2, vpc, count_tag, zone=None): # get reservations for instances that match tag(s) and are in the desired state state = module.params.get('state') if state not in ['running', 'stopped']: state = None reservations = get_reservations(module, ec2, vpc, tags=count_tag, state=state, zone=zone) instances = [] for res in reservations: if hasattr(res, 'instances'): for inst in res.instances: if inst.state == 'terminated' or inst.state == 'shutting-down': continue instances.append(inst) return reservations, instances def _set_none_to_blank(dictionary): result = dictionary for k in result: if isinstance(result[k], dict): result[k] = _set_none_to_blank(result[k]) elif not result[k]: result[k] = "" return result def get_reservations(module, ec2, vpc, tags=None, state=None, zone=None): # TODO: filters do not work with tags that have underscores filters = dict() vpc_subnet_id = module.params.get('vpc_subnet_id') vpc_id = None if vpc_subnet_id: filters.update({"subnet-id": vpc_subnet_id}) if vpc: vpc_id = vpc.get_all_subnets(subnet_ids=[vpc_subnet_id])[0].vpc_id if vpc_id: filters.update({"vpc-id": vpc_id}) if tags is not None: if isinstance(tags, str): try: tags = literal_eval(tags) except Exception: pass # if not a string type, convert and make sure it's a text string if isinstance(tags, int): tags = to_text(tags) # if string, we only care that a tag of that name exists if isinstance(tags, str): filters.update({"tag-key": tags}) # if list, append each item to filters if isinstance(tags, list): for x in tags: if isinstance(x, dict): x = _set_none_to_blank(x) filters.update(dict(("tag:" + tn, tv) for (tn, tv) in x.items())) else: filters.update({"tag-key": x}) # if dict, add the key and value to the filter if isinstance(tags, dict): tags = _set_none_to_blank(tags) filters.update(dict(("tag:" + tn, tv) for (tn, tv) in tags.items())) # lets check to see if the filters dict is empty, if so then stop if not filters: module.fail_json(msg="Filters based on tag is empty => tags: %s" % (tags)) if state: # http://stackoverflow.com/questions/437511/what-are-the-valid-instancestates-for-the-amazon-ec2-api filters.update({'instance-state-name': state}) if zone: filters.update({'availability-zone': zone}) if module.params.get('id'): filters['client-token'] = module.params['id'] results = ec2.get_all_instances(filters=filters) return results def get_instance_info(inst): """ Retrieves instance information from an instance ID and returns it as a dictionary """ instance_info = {'id': inst.id, 'ami_launch_index': inst.ami_launch_index, 'private_ip': inst.private_ip_address, 'private_dns_name': inst.private_dns_name, 'public_ip': inst.ip_address, 'dns_name': inst.dns_name, 'public_dns_name': inst.public_dns_name, 'state_code': inst.state_code, 'architecture': inst.architecture, 'image_id': inst.image_id, 'key_name': inst.key_name, 'placement': inst.placement, 'region': inst.placement[:-1], 'kernel': inst.kernel, 'ramdisk': inst.ramdisk, 'launch_time': inst.launch_time, 'instance_type': inst.instance_type, 'root_device_type': inst.root_device_type, 'root_device_name': inst.root_device_name, 'state': inst.state, 'hypervisor': inst.hypervisor, 'tags': inst.tags, 'groups': dict((group.id, group.name) for group in inst.groups), } try: instance_info['virtualization_type'] = getattr(inst, 'virtualization_type') except AttributeError: instance_info['virtualization_type'] = None try: instance_info['ebs_optimized'] = getattr(inst, 'ebs_optimized') except AttributeError: instance_info['ebs_optimized'] = False try: bdm_dict = {} bdm = getattr(inst, 'block_device_mapping') for device_name in bdm.keys(): bdm_dict[device_name] = { 'status': bdm[device_name].status, 'volume_id': bdm[device_name].volume_id, 'delete_on_termination': bdm[device_name].delete_on_termination } instance_info['block_device_mapping'] = bdm_dict except AttributeError: instance_info['block_device_mapping'] = False try: instance_info['tenancy'] = getattr(inst, 'placement_tenancy') except AttributeError: instance_info['tenancy'] = 'default' return instance_info def boto_supports_associate_public_ip_address(ec2): """ Check if Boto library has associate_public_ip_address in the NetworkInterfaceSpecification class. Added in Boto 2.13.0 ec2: authenticated ec2 connection object Returns: True if Boto library accepts associate_public_ip_address argument, else false """ try: network_interface = boto.ec2.networkinterface.NetworkInterfaceSpecification() getattr(network_interface, "associate_public_ip_address") return True except AttributeError: return False def boto_supports_profile_name_arg(ec2): """ Check if Boto library has instance_profile_name argument. instance_profile_name has been added in Boto 2.5.0 ec2: authenticated ec2 connection object Returns: True if Boto library accept instance_profile_name argument, else false """ run_instances_method = getattr(ec2, 'run_instances') return 'instance_profile_name' in get_function_code(run_instances_method).co_varnames def boto_supports_volume_encryption(): """ Check if Boto library supports encryption of EBS volumes (added in 2.29.0) Returns: True if boto library has the named param as an argument on the request_spot_instances method, else False """ return hasattr(boto, 'Version') and LooseVersion(boto.Version) >= LooseVersion('2.29.0') def create_block_device(module, ec2, volume): # Not aware of a way to determine this programatically # http://aws.amazon.com/about-aws/whats-new/2013/10/09/ebs-provisioned-iops-maximum-iops-gb-ratio-increased-to-30-1/ MAX_IOPS_TO_SIZE_RATIO = 30 volume_type = volume.get('volume_type') if 'snapshot' not in volume and 'ephemeral' not in volume: if 'volume_size' not in volume: module.fail_json(msg='Size must be specified when creating a new volume or modifying the root volume') if 'snapshot' in volume: if volume_type == 'io1' and 'iops' not in volume: module.fail_json(msg='io1 volumes must have an iops value set') if 'iops' in volume: snapshot = ec2.get_all_snapshots(snapshot_ids=[volume['snapshot']])[0] size = volume.get('volume_size', snapshot.volume_size) if int(volume['iops']) > MAX_IOPS_TO_SIZE_RATIO * size: module.fail_json(msg='IOPS must be at most %d times greater than size' % MAX_IOPS_TO_SIZE_RATIO) if 'ephemeral' in volume: if 'snapshot' in volume: module.fail_json(msg='Cannot set both ephemeral and snapshot') if boto_supports_volume_encryption(): return BlockDeviceType(snapshot_id=volume.get('snapshot'), ephemeral_name=volume.get('ephemeral'), size=volume.get('volume_size'), volume_type=volume_type, delete_on_termination=volume.get('delete_on_termination', False), iops=volume.get('iops'), encrypted=volume.get('encrypted', None)) else: return BlockDeviceType(snapshot_id=volume.get('snapshot'), ephemeral_name=volume.get('ephemeral'), size=volume.get('volume_size'), volume_type=volume_type, delete_on_termination=volume.get('delete_on_termination', False), iops=volume.get('iops')) def boto_supports_param_in_spot_request(ec2, param): """ Check if Boto library has a <param> in its request_spot_instances() method. For example, the placement_group parameter wasn't added until 2.3.0. ec2: authenticated ec2 connection object Returns: True if boto library has the named param as an argument on the request_spot_instances method, else False """ method = getattr(ec2, 'request_spot_instances') return param in get_function_code(method).co_varnames def await_spot_requests(module, ec2, spot_requests, count): """ Wait for a group of spot requests to be fulfilled, or fail. module: Ansible module object ec2: authenticated ec2 connection object spot_requests: boto.ec2.spotinstancerequest.SpotInstanceRequest object returned by ec2.request_spot_instances count: Total number of instances to be created by the spot requests Returns: list of instance ID's created by the spot request(s) """ spot_wait_timeout = int(module.params.get('spot_wait_timeout')) wait_complete = time.time() + spot_wait_timeout spot_req_inst_ids = dict() while time.time() < wait_complete: reqs = ec2.get_all_spot_instance_requests() for sirb in spot_requests: if sirb.id in spot_req_inst_ids: continue for sir in reqs: if sir.id != sirb.id: continue # this is not our spot instance if sir.instance_id is not None: spot_req_inst_ids[sirb.id] = sir.instance_id elif sir.state == 'open': continue # still waiting, nothing to do here elif sir.state == 'active': continue # Instance is created already, nothing to do here elif sir.state == 'failed': module.fail_json(msg="Spot instance request %s failed with status %s and fault %s:%s" % ( sir.id, sir.status.code, sir.fault.code, sir.fault.message)) elif sir.state == 'cancelled': module.fail_json(msg="Spot instance request %s was cancelled before it could be fulfilled." % sir.id) elif sir.state == 'closed': # instance is terminating or marked for termination # this may be intentional on the part of the operator, # or it may have been terminated by AWS due to capacity, # price, or group constraints in this case, we'll fail # the module if the reason for the state is anything # other than termination by user. Codes are documented at # https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/spot-bid-status.html if sir.status.code == 'instance-terminated-by-user': # do nothing, since the user likely did this on purpose pass else: spot_msg = "Spot instance request %s was closed by AWS with the status %s and fault %s:%s" module.fail_json(msg=spot_msg % (sir.id, sir.status.code, sir.fault.code, sir.fault.message)) if len(spot_req_inst_ids) < count: time.sleep(5) else: return list(spot_req_inst_ids.values()) module.fail_json(msg="wait for spot requests timeout on %s" % time.asctime()) def enforce_count(module, ec2, vpc): exact_count = module.params.get('exact_count') count_tag = module.params.get('count_tag') zone = module.params.get('zone') # fail here if the exact count was specified without filtering # on a tag, as this may lead to a undesired removal of instances if exact_count and count_tag is None: module.fail_json(msg="you must use the 'count_tag' option with exact_count") reservations, instances = find_running_instances_by_count_tag(module, ec2, vpc, count_tag, zone) changed = None checkmode = False instance_dict_array = [] changed_instance_ids = None if len(instances) == exact_count: changed = False elif len(instances) < exact_count: changed = True to_create = exact_count - len(instances) if not checkmode: (instance_dict_array, changed_instance_ids, changed) \ = create_instances(module, ec2, vpc, override_count=to_create) for inst in instance_dict_array: instances.append(inst) elif len(instances) > exact_count: changed = True to_remove = len(instances) - exact_count if not checkmode: all_instance_ids = sorted([x.id for x in instances]) remove_ids = all_instance_ids[0:to_remove] instances = [x for x in instances if x.id not in remove_ids] (changed, instance_dict_array, changed_instance_ids) \ = terminate_instances(module, ec2, remove_ids) terminated_list = [] for inst in instance_dict_array: inst['state'] = "terminated" terminated_list.append(inst) instance_dict_array = terminated_list # ensure all instances are dictionaries all_instances = [] for inst in instances: if not isinstance(inst, dict): warn_if_public_ip_assignment_changed(module, inst) inst = get_instance_info(inst) all_instances.append(inst) return (all_instances, instance_dict_array, changed_instance_ids, changed) def create_instances(module, ec2, vpc, override_count=None): """ Creates new instances module : AnsibleModule object ec2: authenticated ec2 connection object Returns: A list of dictionaries with instance information about the instances that were launched """ key_name = module.params.get('key_name') id = module.params.get('id') group_name = module.params.get('group') group_id = module.params.get('group_id') zone = module.params.get('zone') instance_type = module.params.get('instance_type') tenancy = module.params.get('tenancy') spot_price = module.params.get('spot_price') spot_type = module.params.get('spot_type') image = module.params.get('image') if override_count: count = override_count else: count = module.params.get('count') monitoring = module.params.get('monitoring') kernel = module.params.get('kernel') ramdisk = module.params.get('ramdisk') wait = module.params.get('wait') wait_timeout = int(module.params.get('wait_timeout')) spot_wait_timeout = int(module.params.get('spot_wait_timeout')) placement_group = module.params.get('placement_group') user_data = module.params.get('user_data') instance_tags = module.params.get('instance_tags') vpc_subnet_id = module.params.get('vpc_subnet_id') assign_public_ip = module.boolean(module.params.get('assign_public_ip')) private_ip = module.params.get('private_ip') instance_profile_name = module.params.get('instance_profile_name') volumes = module.params.get('volumes') ebs_optimized = module.params.get('ebs_optimized') exact_count = module.params.get('exact_count') count_tag = module.params.get('count_tag') source_dest_check = module.boolean(module.params.get('source_dest_check')) termination_protection = module.boolean(module.params.get('termination_protection')) network_interfaces = module.params.get('network_interfaces') spot_launch_group = module.params.get('spot_launch_group') instance_initiated_shutdown_behavior = module.params.get('instance_initiated_shutdown_behavior') vpc_id = None if vpc_subnet_id: if not vpc: module.fail_json(msg="region must be specified") else: vpc_id = vpc.get_all_subnets(subnet_ids=[vpc_subnet_id])[0].vpc_id else: vpc_id = None try: # Here we try to lookup the group id from the security group name - if group is set. if group_name: if vpc_id: grp_details = ec2.get_all_security_groups(filters={'vpc_id': vpc_id}) else: grp_details = ec2.get_all_security_groups() if isinstance(group_name, string_types): group_name = [group_name] unmatched = set(group_name).difference(str(grp.name) for grp in grp_details) if len(unmatched) > 0: module.fail_json(msg="The following group names are not valid: %s" % ', '.join(unmatched)) group_id = [str(grp.id) for grp in grp_details if str(grp.name) in group_name] # Now we try to lookup the group id testing if group exists. elif group_id: # wrap the group_id in a list if it's not one already if isinstance(group_id, string_types): group_id = [group_id] grp_details = ec2.get_all_security_groups(group_ids=group_id) group_name = [grp_item.name for grp_item in grp_details] except boto.exception.NoAuthHandlerFound as e: module.fail_json(msg=str(e)) # Lookup any instances that much our run id. running_instances = [] count_remaining = int(count) if id is not None: filter_dict = {'client-token': id, 'instance-state-name': 'running'} previous_reservations = ec2.get_all_instances(None, filter_dict) for res in previous_reservations: for prev_instance in res.instances: running_instances.append(prev_instance) count_remaining = count_remaining - len(running_instances) # Both min_count and max_count equal count parameter. This means the launch request is explicit (we want count, or fail) in how many instances we want. if count_remaining == 0: changed = False else: changed = True try: params = {'image_id': image, 'key_name': key_name, 'monitoring_enabled': monitoring, 'placement': zone, 'instance_type': instance_type, 'kernel_id': kernel, 'ramdisk_id': ramdisk} if user_data is not None: params['user_data'] = to_bytes(user_data, errors='surrogate_or_strict') if ebs_optimized: params['ebs_optimized'] = ebs_optimized # 'tenancy' always has a default value, but it is not a valid parameter for spot instance request if not spot_price: params['tenancy'] = tenancy if boto_supports_profile_name_arg(ec2): params['instance_profile_name'] = instance_profile_name else: if instance_profile_name is not None: module.fail_json( msg="instance_profile_name parameter requires Boto version 2.5.0 or higher") if assign_public_ip is not None: if not boto_supports_associate_public_ip_address(ec2): module.fail_json( msg="assign_public_ip parameter requires Boto version 2.13.0 or higher.") elif not vpc_subnet_id: module.fail_json( msg="assign_public_ip only available with vpc_subnet_id") else: if private_ip: interface = boto.ec2.networkinterface.NetworkInterfaceSpecification( subnet_id=vpc_subnet_id, private_ip_address=private_ip, groups=group_id, associate_public_ip_address=assign_public_ip) else: interface = boto.ec2.networkinterface.NetworkInterfaceSpecification( subnet_id=vpc_subnet_id, groups=group_id, associate_public_ip_address=assign_public_ip) interfaces = boto.ec2.networkinterface.NetworkInterfaceCollection(interface) params['network_interfaces'] = interfaces else: if network_interfaces: if isinstance(network_interfaces, string_types): network_interfaces = [network_interfaces] interfaces = [] for i, network_interface_id in enumerate(network_interfaces): interface = boto.ec2.networkinterface.NetworkInterfaceSpecification( network_interface_id=network_interface_id, device_index=i) interfaces.append(interface) params['network_interfaces'] = \ boto.ec2.networkinterface.NetworkInterfaceCollection(*interfaces) else: params['subnet_id'] = vpc_subnet_id if vpc_subnet_id: params['security_group_ids'] = group_id else: params['security_groups'] = group_name if volumes: bdm = BlockDeviceMapping() for volume in volumes: if 'device_name' not in volume: module.fail_json(msg='Device name must be set for volume') # Minimum volume size is 1GiB. We'll use volume size explicitly set to 0 # to be a signal not to create this volume if 'volume_size' not in volume or int(volume['volume_size']) > 0: bdm[volume['device_name']] = create_block_device(module, ec2, volume) params['block_device_map'] = bdm # check to see if we're using spot pricing first before starting instances if not spot_price: if assign_public_ip is not None and private_ip: params.update( dict( min_count=count_remaining, max_count=count_remaining, client_token=id, placement_group=placement_group, ) ) else: params.update( dict( min_count=count_remaining, max_count=count_remaining, client_token=id, placement_group=placement_group, private_ip_address=private_ip, ) ) # For ordinary (not spot) instances, we can select 'stop' # (the default) or 'terminate' here. params['instance_initiated_shutdown_behavior'] = instance_initiated_shutdown_behavior or 'stop' try: res = ec2.run_instances(**params) except boto.exception.EC2ResponseError as e: if (params['instance_initiated_shutdown_behavior'] != 'terminate' and "InvalidParameterCombination" == e.error_code): params['instance_initiated_shutdown_behavior'] = 'terminate' res = ec2.run_instances(**params) else: raise instids = [i.id for i in res.instances] while True: try: ec2.get_all_instances(instids) break except boto.exception.EC2ResponseError as e: if "<Code>InvalidInstanceID.NotFound</Code>" in str(e): # there's a race between start and get an instance continue else: module.fail_json(msg=str(e)) # The instances returned through ec2.run_instances above can be in # terminated state due to idempotency. See commit 7f11c3d for a complete # explanation. terminated_instances = [ str(instance.id) for instance in res.instances if instance.state == 'terminated' ] if terminated_instances: module.fail_json(msg="Instances with id(s) %s " % terminated_instances + "were created previously but have since been terminated - " + "use a (possibly different) 'instanceid' parameter") else: if private_ip: module.fail_json( msg='private_ip only available with on-demand (non-spot) instances') if boto_supports_param_in_spot_request(ec2, 'placement_group'): params['placement_group'] = placement_group elif placement_group: module.fail_json( msg="placement_group parameter requires Boto version 2.3.0 or higher.") # You can't tell spot instances to 'stop'; they will always be # 'terminate'd. For convenience, we'll ignore the latter value. if instance_initiated_shutdown_behavior and instance_initiated_shutdown_behavior != 'terminate': module.fail_json( msg="instance_initiated_shutdown_behavior=stop is not supported for spot instances.") if spot_launch_group and isinstance(spot_launch_group, string_types): params['launch_group'] = spot_launch_group params.update(dict( count=count_remaining, type=spot_type, )) # Set spot ValidUntil # ValidUntil -> (timestamp). The end date of the request, in # UTC format (for example, YYYY -MM -DD T*HH* :MM :SS Z). utc_valid_until = ( datetime.datetime.utcnow() + datetime.timedelta(seconds=spot_wait_timeout)) params['valid_until'] = utc_valid_until.strftime('%Y-%m-%dT%H:%M:%S.000Z') res = ec2.request_spot_instances(spot_price, **params) # Now we have to do the intermediate waiting if wait: instids = await_spot_requests(module, ec2, res, count) else: instids = [] except boto.exception.BotoServerError as e: module.fail_json(msg="Instance creation failed => %s: %s" % (e.error_code, e.error_message)) # wait here until the instances are up num_running = 0 wait_timeout = time.time() + wait_timeout res_list = () while wait_timeout > time.time() and num_running < len(instids): try: res_list = ec2.get_all_instances(instids) except boto.exception.BotoServerError as e: if e.error_code == 'InvalidInstanceID.NotFound': time.sleep(1) continue else: raise num_running = 0 for res in res_list: num_running += len([i for i in res.instances if i.state == 'running']) if len(res_list) <= 0: # got a bad response of some sort, possibly due to # stale/cached data. Wait a second and then try again time.sleep(1) continue if wait and num_running < len(instids): time.sleep(5) else: break if wait and wait_timeout <= time.time(): # waiting took too long module.fail_json(msg="wait for instances running timeout on %s" % time.asctime()) # We do this after the loop ends so that we end up with one list for res in res_list: running_instances.extend(res.instances) # Enabled by default by AWS if source_dest_check is False: for inst in res.instances: inst.modify_attribute('sourceDestCheck', False) # Disabled by default by AWS if termination_protection is True: for inst in res.instances: inst.modify_attribute('disableApiTermination', True) # Leave this as late as possible to try and avoid InvalidInstanceID.NotFound if instance_tags and instids: try: ec2.create_tags(instids, instance_tags) except boto.exception.EC2ResponseError as e: module.fail_json(msg="Instance tagging failed => %s: %s" % (e.error_code, e.error_message)) instance_dict_array = [] created_instance_ids = [] for inst in running_instances: inst.update() d = get_instance_info(inst) created_instance_ids.append(inst.id) instance_dict_array.append(d) return (instance_dict_array, created_instance_ids, changed) def terminate_instances(module, ec2, instance_ids): """ Terminates a list of instances module: Ansible module object ec2: authenticated ec2 connection object termination_list: a list of instances to terminate in the form of [ {id: <inst-id>}, ..] Returns a dictionary of instance information about the instances terminated. If the instance to be terminated is running "changed" will be set to False. """ # Whether to wait for termination to complete before returning wait = module.params.get('wait') wait_timeout = int(module.params.get('wait_timeout')) changed = False instance_dict_array = [] if not isinstance(instance_ids, list) or len(instance_ids) < 1: module.fail_json(msg='instance_ids should be a list of instances, aborting') terminated_instance_ids = [] for res in ec2.get_all_instances(instance_ids): for inst in res.instances: if inst.state == 'running' or inst.state == 'stopped': terminated_instance_ids.append(inst.id) instance_dict_array.append(get_instance_info(inst)) try: ec2.terminate_instances([inst.id]) except EC2ResponseError as e: module.fail_json(msg='Unable to terminate instance {0}, error: {1}'.format(inst.id, e)) changed = True # wait here until the instances are 'terminated' if wait: num_terminated = 0 wait_timeout = time.time() + wait_timeout while wait_timeout > time.time() and num_terminated < len(terminated_instance_ids): response = ec2.get_all_instances(instance_ids=terminated_instance_ids, filters={'instance-state-name': 'terminated'}) try: num_terminated = sum([len(res.instances) for res in response]) except Exception as e: # got a bad response of some sort, possibly due to # stale/cached data. Wait a second and then try again time.sleep(1) continue if num_terminated < len(terminated_instance_ids): time.sleep(5) # waiting took too long if wait_timeout < time.time() and num_terminated < len(terminated_instance_ids): module.fail_json(msg="wait for instance termination timeout on %s" % time.asctime()) # Lets get the current state of the instances after terminating - issue600 instance_dict_array = [] for res in ec2.get_all_instances(instance_ids=terminated_instance_ids, filters={'instance-state-name': 'terminated'}): for inst in res.instances: instance_dict_array.append(get_instance_info(inst)) return (changed, instance_dict_array, terminated_instance_ids) def startstop_instances(module, ec2, instance_ids, state, instance_tags): """ Starts or stops a list of existing instances module: Ansible module object ec2: authenticated ec2 connection object instance_ids: The list of instances to start in the form of [ {id: <inst-id>}, ..] instance_tags: A dict of tag keys and values in the form of {key: value, ... } state: Intended state ("running" or "stopped") Returns a dictionary of instance information about the instances started/stopped. If the instance was not able to change state, "changed" will be set to False. Note that if instance_ids and instance_tags are both non-empty, this method will process the intersection of the two """ wait = module.params.get('wait') wait_timeout = int(module.params.get('wait_timeout')) group_id = module.params.get('group_id') group_name = module.params.get('group') changed = False instance_dict_array = [] if not isinstance(instance_ids, list) or len(instance_ids) < 1: # Fail unless the user defined instance tags if not instance_tags: module.fail_json(msg='instance_ids should be a list of instances, aborting') # To make an EC2 tag filter, we need to prepend 'tag:' to each key. # An empty filter does no filtering, so it's safe to pass it to the # get_all_instances method even if the user did not specify instance_tags filters = {} if instance_tags: for key, value in instance_tags.items(): filters["tag:" + key] = value if module.params.get('id'): filters['client-token'] = module.params['id'] # Check that our instances are not in the state we want to take # Check (and eventually change) instances attributes and instances state existing_instances_array = [] for res in ec2.get_all_instances(instance_ids, filters=filters): for inst in res.instances: warn_if_public_ip_assignment_changed(module, inst) changed = (check_source_dest_attr(module, inst, ec2) or check_termination_protection(module, inst) or changed) # Check security groups and if we're using ec2-vpc; ec2-classic security groups may not be modified if inst.vpc_id and group_name: grp_details = ec2.get_all_security_groups(filters={'vpc_id': inst.vpc_id}) if isinstance(group_name, string_types): group_name = [group_name] unmatched = set(group_name) - set(to_text(grp.name) for grp in grp_details) if unmatched: module.fail_json(msg="The following group names are not valid: %s" % ', '.join(unmatched)) group_ids = [to_text(grp.id) for grp in grp_details if to_text(grp.name) in group_name] elif inst.vpc_id and group_id: if isinstance(group_id, string_types): group_id = [group_id] grp_details = ec2.get_all_security_groups(group_ids=group_id) group_ids = [grp_item.id for grp_item in grp_details] if inst.vpc_id and (group_name or group_id): if set(sg.id for sg in inst.groups) != set(group_ids): changed = inst.modify_attribute('groupSet', group_ids) # Check instance state if inst.state != state: instance_dict_array.append(get_instance_info(inst)) try: if state == 'running': inst.start() else: inst.stop() except EC2ResponseError as e: module.fail_json(msg='Unable to change state for instance {0}, error: {1}'.format(inst.id, e)) changed = True existing_instances_array.append(inst.id) instance_ids = list(set(existing_instances_array + (instance_ids or []))) # Wait for all the instances to finish starting or stopping wait_timeout = time.time() + wait_timeout while wait and wait_timeout > time.time(): instance_dict_array = [] matched_instances = [] for res in ec2.get_all_instances(instance_ids): for i in res.instances: if i.state == state: instance_dict_array.append(get_instance_info(i)) matched_instances.append(i) if len(matched_instances) < len(instance_ids): time.sleep(5) else: break if wait and wait_timeout <= time.time(): # waiting took too long module.fail_json(msg="wait for instances running timeout on %s" % time.asctime()) return (changed, instance_dict_array, instance_ids) def restart_instances(module, ec2, instance_ids, state, instance_tags): """ Restarts a list of existing instances module: Ansible module object ec2: authenticated ec2 connection object instance_ids: The list of instances to start in the form of [ {id: <inst-id>}, ..] instance_tags: A dict of tag keys and values in the form of {key: value, ... } state: Intended state ("restarted") Returns a dictionary of instance information about the instances. If the instance was not able to change state, "changed" will be set to False. Wait will not apply here as this is a OS level operation. Note that if instance_ids and instance_tags are both non-empty, this method will process the intersection of the two. """ changed = False instance_dict_array = [] if not isinstance(instance_ids, list) or len(instance_ids) < 1: # Fail unless the user defined instance tags if not instance_tags: module.fail_json(msg='instance_ids should be a list of instances, aborting') # To make an EC2 tag filter, we need to prepend 'tag:' to each key. # An empty filter does no filtering, so it's safe to pass it to the # get_all_instances method even if the user did not specify instance_tags filters = {} if instance_tags: for key, value in instance_tags.items(): filters["tag:" + key] = value if module.params.get('id'): filters['client-token'] = module.params['id'] # Check that our instances are not in the state we want to take # Check (and eventually change) instances attributes and instances state for res in ec2.get_all_instances(instance_ids, filters=filters): for inst in res.instances: warn_if_public_ip_assignment_changed(module, inst) changed = (check_source_dest_attr(module, inst, ec2) or check_termination_protection(module, inst) or changed) # Check instance state if inst.state != state: instance_dict_array.append(get_instance_info(inst)) try: inst.reboot() except EC2ResponseError as e: module.fail_json(msg='Unable to change state for instance {0}, error: {1}'.format(inst.id, e)) changed = True return (changed, instance_dict_array, instance_ids) def check_termination_protection(module, inst): """ Check the instance disableApiTermination attribute. module: Ansible module object inst: EC2 instance object returns: True if state changed None otherwise """ termination_protection = module.params.get('termination_protection') if (inst.get_attribute('disableApiTermination')['disableApiTermination'] != termination_protection and termination_protection is not None): inst.modify_attribute('disableApiTermination', termination_protection) return True def check_source_dest_attr(module, inst, ec2): """ Check the instance sourceDestCheck attribute. module: Ansible module object inst: EC2 instance object returns: True if state changed None otherwise """ source_dest_check = module.params.get('source_dest_check') if source_dest_check is not None: try: if inst.vpc_id is not None and inst.get_attribute('sourceDestCheck')['sourceDestCheck'] != source_dest_check: inst.modify_attribute('sourceDestCheck', source_dest_check) return True except boto.exception.EC2ResponseError as exc: # instances with more than one Elastic Network Interface will # fail, because they have the sourceDestCheck attribute defined # per-interface if exc.code == 'InvalidInstanceID': for interface in inst.interfaces: if interface.source_dest_check != source_dest_check: ec2.modify_network_interface_attribute(interface.id, "sourceDestCheck", source_dest_check) return True else: module.fail_json(msg='Failed to handle source_dest_check state for instance {0}, error: {1}'.format(inst.id, exc), exception=traceback.format_exc()) def warn_if_public_ip_assignment_changed(module, instance): # This is a non-modifiable attribute. assign_public_ip = module.params.get('assign_public_ip') # Check that public ip assignment is the same and warn if not public_dns_name = getattr(instance, 'public_dns_name', None) if (assign_public_ip or public_dns_name) and (not public_dns_name or assign_public_ip is False): module.warn("Unable to modify public ip assignment to {0} for instance {1}. " "Whether or not to assign a public IP is determined during instance creation.".format(assign_public_ip, instance.id)) def main(): argument_spec = ec2_argument_spec() argument_spec.update( dict( key_name=dict(aliases=['keypair']), id=dict(), group=dict(type='list', aliases=['groups']), group_id=dict(type='list'), zone=dict(aliases=['aws_zone', 'ec2_zone']), instance_type=dict(aliases=['type']), spot_price=dict(), spot_type=dict(default='one-time', choices=["one-time", "persistent"]), spot_launch_group=dict(), image=dict(), kernel=dict(), count=dict(type='int', default='1'), monitoring=dict(type='bool', default=False), ramdisk=dict(), wait=dict(type='bool', default=False), wait_timeout=dict(type='int', default=300), spot_wait_timeout=dict(type='int', default=600), placement_group=dict(), user_data=dict(), instance_tags=dict(type='dict'), vpc_subnet_id=dict(), assign_public_ip=dict(type='bool'), private_ip=dict(), instance_profile_name=dict(), instance_ids=dict(type='list', aliases=['instance_id']), source_dest_check=dict(type='bool', default=None), termination_protection=dict(type='bool', default=None), state=dict(default='present', choices=['present', 'absent', 'running', 'restarted', 'stopped']), instance_initiated_shutdown_behavior=dict(default='stop', choices=['stop', 'terminate']), exact_count=dict(type='int', default=None), count_tag=dict(type='raw'), volumes=dict(type='list'), ebs_optimized=dict(type='bool', default=False), tenancy=dict(default='default', choices=['default', 'dedicated']), network_interfaces=dict(type='list', aliases=['network_interface']) ) ) module = AnsibleModule( argument_spec=argument_spec, mutually_exclusive=[ # Can be uncommented when we finish the deprecation cycle. # ['group', 'group_id'], ['exact_count', 'count'], ['exact_count', 'state'], ['exact_count', 'instance_ids'], ['network_interfaces', 'assign_public_ip'], ['network_interfaces', 'group'], ['network_interfaces', 'group_id'], ['network_interfaces', 'private_ip'], ['network_interfaces', 'vpc_subnet_id'], ], ) if module.params.get('group') and module.params.get('group_id'): module.deprecate( msg='Support for passing both group and group_id has been deprecated. ' 'Currently group_id is ignored, in future passing both will result in an error', version='2.14', collection_name='ansible.builtin') if not HAS_BOTO: module.fail_json(msg='boto required for this module') try: region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module) if module.params.get('region') or not module.params.get('ec2_url'): ec2 = ec2_connect(module) elif module.params.get('ec2_url'): ec2 = connect_ec2_endpoint(ec2_url, **aws_connect_kwargs) if 'region' not in aws_connect_kwargs: aws_connect_kwargs['region'] = ec2.region vpc = connect_vpc(**aws_connect_kwargs) except boto.exception.NoAuthHandlerFound as e: module.fail_json(msg="Failed to get connection: %s" % e.message, exception=traceback.format_exc()) tagged_instances = [] state = module.params['state'] if state == 'absent': instance_ids = module.params['instance_ids'] if not instance_ids: module.fail_json(msg='instance_ids list is required for absent state') (changed, instance_dict_array, new_instance_ids) = terminate_instances(module, ec2, instance_ids) elif state in ('running', 'stopped'): instance_ids = module.params.get('instance_ids') instance_tags = module.params.get('instance_tags') if not (isinstance(instance_ids, list) or isinstance(instance_tags, dict)): module.fail_json(msg='running list needs to be a list of instances or set of tags to run: %s' % instance_ids) (changed, instance_dict_array, new_instance_ids) = startstop_instances(module, ec2, instance_ids, state, instance_tags) elif state in ('restarted'): instance_ids = module.params.get('instance_ids') instance_tags = module.params.get('instance_tags') if not (isinstance(instance_ids, list) or isinstance(instance_tags, dict)): module.fail_json(msg='running list needs to be a list of instances or set of tags to run: %s' % instance_ids) (changed, instance_dict_array, new_instance_ids) = restart_instances(module, ec2, instance_ids, state, instance_tags) elif state == 'present': # Changed is always set to true when provisioning new instances if not module.params.get('image'): module.fail_json(msg='image parameter is required for new instance') if module.params.get('exact_count') is None: (instance_dict_array, new_instance_ids, changed) = create_instances(module, ec2, vpc) else: (tagged_instances, instance_dict_array, new_instance_ids, changed) = enforce_count(module, ec2, vpc) # Always return instances in the same order if new_instance_ids: new_instance_ids.sort() if instance_dict_array: instance_dict_array.sort(key=lambda x: x['id']) if tagged_instances: tagged_instances.sort(key=lambda x: x['id']) module.exit_json(changed=changed, instance_ids=new_instance_ids, instances=instance_dict_array, tagged_instances=tagged_instances) if __name__ == '__main__': main()