#!/usr/bin/python
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Ansible. If not, see .
DOCUMENTATION = '''
---
module: ec2
short_description: create, terminate, start or stop an instance in ec2
description:
- Creates or terminates ec2 instances.
- C(state=restarted) was added in 2.2
version_added: "0.9"
options:
key_name:
description:
- key pair to use on the instance
required: false
default: null
aliases: ['keypair']
group:
description:
- security group (or list of groups) to use with the instance
required: false
default: null
aliases: [ 'groups' ]
group_id:
version_added: "1.1"
description:
- security group id (or list of ids) to use with the instance
required: false
default: null
aliases: []
region:
version_added: "1.2"
description:
- The AWS region to use. Must be specified if ec2_url is not used. If not specified then the value of the EC2_REGION environment variable, if any, is used. See U(http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region)
required: false
default: null
aliases: [ 'aws_region', 'ec2_region' ]
zone:
version_added: "1.2"
description:
- AWS availability zone in which to launch the instance
required: false
default: null
aliases: [ 'aws_zone', 'ec2_zone' ]
instance_type:
description:
- instance type to use for the instance, see U(http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/instance-types.html)
required: true
default: null
aliases: []
tenancy:
version_added: "1.9"
description:
- An instance with a tenancy of "dedicated" runs on single-tenant hardware and can only be launched into a VPC. Note that to use dedicated tenancy you MUST specify a vpc_subnet_id as well. Dedicated tenancy is not available for EC2 "micro" instances.
required: false
default: default
choices: [ "default", "dedicated" ]
aliases: []
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.
required: false
default: null
aliases: []
spot_type:
version_added: "2.0"
description:
- Type of spot request; one of "one-time" or "persistent". Defaults to "one-time" if not supplied.
required: false
default: "one-time"
choices: [ "one-time", "persistent" ]
aliases: []
image:
description:
- I(ami) ID to use for the instance
required: true
default: null
aliases: []
kernel:
description:
- kernel I(eki) to use for the instance
required: false
default: null
aliases: []
ramdisk:
description:
- ramdisk I(eri) to use for the instance
required: false
default: null
aliases: []
wait:
description:
- wait for the instance to be 'running' before returning. Does not wait for SSH, see 'wait_for' example for details.
required: false
default: "no"
choices: [ "yes", "no" ]
aliases: []
wait_timeout:
description:
- how long before wait gives up, in seconds
default: 300
aliases: []
spot_wait_timeout:
version_added: "1.5"
description:
- how long to wait for the spot instance request to be fulfilled
default: 600
aliases: []
count:
description:
- number of instances to launch
required: False
default: 1
aliases: []
monitoring:
version_added: "1.1"
description:
- enable detailed monitoring (CloudWatch) for instance
required: false
default: null
choices: [ "yes", "no" ]
aliases: []
user_data:
version_added: "0.9"
description:
- opaque blob of data which is made available to the ec2 instance
required: false
default: null
aliases: []
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"}'
required: false
default: null
aliases: []
placement_group:
version_added: "1.3"
description:
- placement group for the instance when using EC2 Clustered Compute
required: false
default: null
aliases: []
vpc_subnet_id:
version_added: "1.1"
description:
- the subnet ID in which to launch the instance (VPC)
required: false
default: null
aliases: []
assign_public_ip:
version_added: "1.5"
description:
- when provisioning within vpc, assign a public IP address. Boto library must be 2.13.0+
required: false
default: null
choices: [ "yes", "no" ]
aliases: []
private_ip:
version_added: "1.2"
description:
- the private ip address to assign the instance (from the vpc subnet)
required: false
default: null
aliases: []
instance_profile_name:
version_added: "1.3"
description:
- Name of the IAM instance profile to use. Boto library must be 2.5.0+
required: false
default: null
aliases: []
instance_ids:
version_added: "1.3"
description:
- "list of instance ids, currently used for states: absent, running, stopped"
required: false
default: null
aliases: ['instance_id']
source_dest_check:
version_added: "1.6"
description:
- Enable or Disable the Source/Destination checks (for NAT instances and Virtual Routers)
required: false
default: yes
choices: [ "yes", "no" ]
termination_protection:
version_added: "2.0"
description:
- Enable or Disable the Termination Protection
required: false
default: no
choices: [ "yes", "no" ]
instance_initiated_shutdown_behavior:
version_added: "2.2"
description:
- Set whether AWS will Stop or Terminate an instance on shutdown
required: false
default: 'stop'
choices: [ "stop", "terminate" ]
state:
version_added: "1.3"
description:
- create or terminate instances
required: false
default: 'present'
aliases: []
choices: ['present', 'absent', 'running', 'restarted', 'stopped']
volumes:
version_added: "1.5"
description:
- a list of hash/dictionaries of volumes to add to the new instance; '[{"key":"value", "key":"value"}]'; keys allowed are - device_name (str; required), delete_on_termination (bool; False), device_type (deprecated), ephemeral (str), encrypted (bool; False), snapshot (str), volume_type (str), iops (int) - device_type is deprecated use volume_type, iops must be set when volume_type='io1', ephemeral and snapshot are mutually exclusive.
required: false
default: null
aliases: []
ebs_optimized:
version_added: "1.6"
description:
- whether instance is using optimized EBS volumes, see U(http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSOptimized.html)
required: false
default: 'false'
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.
required: false
default: null
aliases: []
count_tag:
version_added: "1.5"
description:
- Used with '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 'instance_tags' option.
required: false
default: null
aliases: []
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 assign_public_ip, private_ip, vpc_subnet_id, group, or group_id parameters may be used. (Those parameters are for creating a new network interface at launch.)
required: false
default: null
aliases: ['network_interface']
spot_launch_group:
version_added: "2.1"
description:
- Launch group for spot request, see U(http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-spot-instances-work.html#spot-launch-group)
required: false
default: null
author:
- "Tim Gerla (@tgerla)"
- "Lester Wade (@lwade)"
- "Seth Vidal"
extends_documentation_fragment: aws
'''
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
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
# 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:
key_name: 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
with_items: '{{ec2.instances}}'
- name: Wait for SSH to come up
wait_for: host={{ item.public_dns_name }} port=22 delay=60 timeout=320 state=started
with_items: '{{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
connection: local
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
connection: local
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
connection: local
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
count_tag:
foo:
# instances with tag foo=bar
count_tag:
foo: bar
# instances with tags foo=bar & baz
count_tag:
foo: bar
baz:
# instances with tags foo & bar & baz=bang
count_tag:
- foo
- bar
- baz: bang
'''
import time
from ast import literal_eval
try:
import boto.ec2
from boto.ec2.blockdevicemapping import BlockDeviceType, BlockDeviceMapping
from boto.exception import EC2ResponseError
from boto.vpc import VPCConnection
HAS_BOTO = True
except ImportError:
HAS_BOTO = False
def find_running_instances_by_count_tag(module, ec2, count_tag, zone=None):
# get reservations for instances that match tag(s) and are running
reservations = get_reservations(module, ec2, tags=count_tag, state="running", zone=zone)
instances = []
for res in reservations:
if hasattr(res, 'instances'):
for inst in res.instances:
instances.append(inst)
return reservations, instances
def _set_none_to_blank(dictionary):
result = dictionary
for k in result.iterkeys():
if type(result[k]) == dict:
result[k] = _set_none_to_blank(result[k])
elif not result[k]:
result[k] = ""
return result
def get_reservations(module, ec2, tags=None, state=None, zone=None):
# TODO: filters do not work with tags that have underscores
filters = dict()
if tags is not None:
if type(tags) is str:
try:
tags = literal_eval(tags)
except:
pass
# if string, we only care that a tag of that name exists
if type(tags) is str:
filters.update({"tag-key": tags})
# if list, append each item to filters
if type(tags) is list:
for x in tags:
if type(x) is dict:
x = _set_none_to_blank(x)
filters.update(dict(("tag:"+tn, tv) for (tn,tv) in x.iteritems()))
else:
filters.update({"tag-key": x})
# if dict, add the key and value to the filter
if type(tags) is dict:
tags = _set_none_to_blank(tags)
filters.update(dict(("tag:"+tn, tv) for (tn,tv) in tags.iteritems()))
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})
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 run_instances_method.func_code.co_varnames
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
# device_type has been used historically to represent volume_type,
# however ec2_vol uses volume_type, as does the BlockDeviceType, so
# we add handling for either/or but not both
if all(key in volume for key in ['device_type','volume_type']):
module.fail_json(msg = 'device_type is a deprecated name for volume_type. Do not use both device_type and volume_type')
# get whichever one is set, or NoneType if neither are set
volume_type = volume.get('device_type') or 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 'encrypted' in volume:
module.fail_json(msg = 'You can not set encyrption when creating a volume from a snapshot')
if 'ephemeral' in volume:
if 'snapshot' in volume:
module.fail_json(msg = 'Cannot set both ephemeral and snapshot')
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))
def boto_supports_param_in_spot_request(ec2, param):
"""
Check if Boto library has a 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 method.func_code.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
# http://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 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, 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 type(inst) is not dict:
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')
# group_id and group_name are exclusive of each other
if group_id and group_name:
module.fail_json(msg = str("Use only one type of parameter (group_name) or (group_id)"))
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, basestring):
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, basestring):
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 != 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,
'user_data': user_data}
if ebs_optimized:
params['ebs_optimized'] = ebs_optimized
# 'tenancy' always has a default value, but it is not a valid parameter for spot instance resquest
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:
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, basestring):
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 1GB. 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 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'
res = ec2.run_instances(**params)
instids = [ i.id for i in res.instances ]
while True:
try:
ec2.get_all_instances(instids)
break
except boto.exception.EC2ResponseError as e:
if "InvalidInstanceID.NotFound" 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, basestring):
params['launch_group'] = spot_launch_group
params.update(dict(
count = count_remaining,
type = spot_type,
))
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)
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
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:
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: }, ..]
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: }, ..]
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'))
source_dest_check = module.params.get('source_dest_check')
termination_protection = module.params.get('termination_protection')
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
# 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:
# Check "source_dest_check" attribute
try:
if inst.vpc_id is not None and inst.get_attribute('sourceDestCheck')['sourceDestCheck'] != source_dest_check:
inst.modify_attribute('sourceDestCheck', source_dest_check)
changed = 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)
changed = 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(exc))
# Check "termination_protection" attribute
if (inst.get_attribute('disableApiTermination')['disableApiTermination'] != termination_protection
and termination_protection is not None):
inst.modify_attribute('disableApiTermination', termination_protection)
changed = True
# 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: }, ..]
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.
"""
source_dest_check = module.params.get('source_dest_check')
termination_protection = module.params.get('termination_protection')
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
# 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:
# Check "source_dest_check" attribute
try:
if inst.vpc_id is not None and inst.get_attribute('sourceDestCheck')['sourceDestCheck'] != source_dest_check:
inst.modify_attribute('sourceDestCheck', source_dest_check)
changed = 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)
changed = 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(exc))
# Check "termination_protection" attribute
if (inst.get_attribute('disableApiTermination')['disableApiTermination'] != termination_protection
and termination_protection is not None):
inst.modify_attribute('disableApiTermination', termination_protection)
changed = True
# 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 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(default=300),
spot_wait_timeout = dict(default=600),
placement_group = dict(),
user_data = dict(),
instance_tags = dict(type='dict'),
vpc_subnet_id = dict(),
assign_public_ip = dict(type='bool', default=False),
private_ip = dict(),
instance_profile_name = dict(),
instance_ids = dict(type='list', aliases=['instance_id']),
source_dest_check = dict(type='bool', default=True),
termination_protection = dict(type='bool', default=None),
state = dict(default='present', choices=['present', 'absent', 'running', 'restarted', 'stopped']),
instance_initiated_shutdown_behavior=dict(default=None, choices=['stop', 'terminate']),
exact_count = dict(type='int', default=None),
count_tag = dict(),
volumes = dict(type='list'),
ebs_optimized = dict(type='bool', default=False),
tenancy = dict(default='default'),
network_interfaces = dict(type='list', aliases=['network_interface'])
)
)
module = AnsibleModule(
argument_spec=argument_spec,
mutually_exclusive = [
['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 not HAS_BOTO:
module.fail_json(msg='boto required for this module')
ec2 = ec2_connect(module)
region, ec2_url, aws_connect_kwargs = get_aws_connection_info(module)
if region:
try:
vpc = connect_to_aws(boto.vpc, region, **aws_connect_kwargs)
except boto.exception.NoAuthHandlerFound as e:
module.fail_json(msg = str(e))
else:
vpc = None
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)
module.exit_json(changed=changed, instance_ids=new_instance_ids, instances=instance_dict_array, tagged_instances=tagged_instances)
# import module snippets
from ansible.module_utils.basic import *
from ansible.module_utils.ec2 import *
main()