community.aws.elb_target_info – Gathers which target groups a target is associated with.
Note
This plugin is part of the community.aws collection (version 1.5.0).
You might already have this collection installed if you are using the ansible
package.
It is not included in ansible-core
.
To check whether it is installed, run ansible-galaxy collection list
.
To install it, use: ansible-galaxy collection install community.aws
.
To use it in a playbook, specify: community.aws.elb_target_info
.
New in version 1.0.0: of community.aws
Synopsis
This module will search through every target group in a region to find which ones have registered a given instance ID or IP.
This module was called
elb_target_facts
before Ansible 2.9. The usage did not change.
Requirements
The below requirements are needed on the host that executes this module.
boto
boto3
botocore
python >= 2.6
Parameters
Parameter |
Comments |
---|---|
AWS access key. If not set then the value of the AWS_ACCESS_KEY_ID, AWS_ACCESS_KEY or EC2_ACCESS_KEY environment variable is used. If profile is set this parameter is ignored. Passing the aws_access_key and profile options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01. |
|
The location of a CA Bundle to use when validating SSL certificates. Only used for boto3 based modules. Note: The CA Bundle is read ‘module’ side and may need to be explicitly copied from the controller if not run locally. |
|
A dictionary to modify the botocore configuration. Parameters can be found at https://botocore.amazonaws.com/v1/documentation/api/latest/reference/config.html#botocore.config.Config. Only the ‘user_agent’ key is used for boto modules. See http://boto.cloudhackers.com/en/latest/boto_config_tut.html#boto for more boto configuration. |
|
AWS secret key. If not set then the value of the AWS_SECRET_ACCESS_KEY, AWS_SECRET_KEY, or EC2_SECRET_KEY environment variable is used. If profile is set this parameter is ignored. Passing the aws_secret_key and profile options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01. |
|
Use a botocore.endpoint logger to parse the unique (rather than total) “resource:action” API calls made during a task, outputing the set to the resource_actions key in the task results. Use the aws_resource_action callback to output to total list made during a playbook. The ANSIBLE_DEBUG_BOTOCORE_LOGS environment variable may also be used. Choices:
|
|
Url to use to connect to EC2 or your Eucalyptus cloud (by default the module will use EC2 endpoints). Ignored for modules where region is required. Must be specified for all other modules if region is not used. If not set then the value of the EC2_URL environment variable, if any, is used. |
|
Whether or not to get target groups not used by any load balancers. Choices:
|
|
What instance ID to get information for. |
|
Uses a boto profile. Only works with boto >= 2.24.0. Using profile will override aws_access_key, aws_secret_key and security_token and support for passing them at the same time as profile has been deprecated. aws_access_key, aws_secret_key and security_token will be made mutually exclusive with profile after 2022-06-01. |
|
The AWS region to use. If not specified then the value of the AWS_REGION or EC2_REGION environment variable, if any, is used. See http://docs.aws.amazon.com/general/latest/gr/rande.html#ec2_region |
|
AWS STS security token. If not set then the value of the AWS_SECURITY_TOKEN or EC2_SECURITY_TOKEN environment variable is used. If profile is set this parameter is ignored. Passing the security_token and profile options at the same time has been deprecated and the options will be made mutually exclusive after 2022-06-01. |
|
When set to “no”, SSL certificates will not be validated for boto versions >= 2.6.0. Choices:
|
Notes
Note
If parameters are not set within the module, the following environment variables can be used in decreasing order of precedence
AWS_URL
orEC2_URL
,AWS_PROFILE
orAWS_DEFAULT_PROFILE
,AWS_ACCESS_KEY_ID
orAWS_ACCESS_KEY
orEC2_ACCESS_KEY
,AWS_SECRET_ACCESS_KEY
orAWS_SECRET_KEY
orEC2_SECRET_KEY
,AWS_SECURITY_TOKEN
orEC2_SECURITY_TOKEN
,AWS_REGION
orEC2_REGION
,AWS_CA_BUNDLE
Ansible uses the boto configuration file (typically ~/.boto) if no credentials are provided. See https://boto.readthedocs.io/en/latest/boto_config_tut.html
AWS_REGION
orEC2_REGION
can be typically be used to specify the AWS region, when required, but this can also be configured in the boto config file
Examples
# practical use case - dynamically de-registering and re-registering nodes
- name: Get EC2 Metadata
amazon.aws.ec2_metadata_facts:
- name: Get initial list of target groups
delegate_to: localhost
community.aws.elb_target_info:
instance_id: "{{ ansible_ec2_instance_id }}"
region: "{{ ansible_ec2_placement_region }}"
register: target_info
- name: save fact for later
ansible.builtin.set_fact:
original_tgs: "{{ target_info.instance_target_groups }}"
- name: Deregister instance from all target groups
delegate_to: localhost
community.aws.elb_target:
target_group_arn: "{{ item.0.target_group_arn }}"
target_port: "{{ item.1.target_port }}"
target_az: "{{ item.1.target_az }}"
target_id: "{{ item.1.target_id }}"
state: absent
target_status: "draining"
region: "{{ ansible_ec2_placement_region }}"
with_subelements:
- "{{ original_tgs }}"
- "targets"
# This avoids having to wait for 'elb_target' to serially deregister each
# target group. An alternative would be to run all of the 'elb_target'
# tasks async and wait for them to finish.
- name: wait for all targets to deregister simultaneously
delegate_to: localhost
community.aws.elb_target_info:
get_unused_target_groups: false
instance_id: "{{ ansible_ec2_instance_id }}"
region: "{{ ansible_ec2_placement_region }}"
register: target_info
until: (target_info.instance_target_groups | length) == 0
retries: 60
delay: 10
- name: reregister in elbv2s
community.aws.elb_target:
region: "{{ ansible_ec2_placement_region }}"
target_group_arn: "{{ item.0.target_group_arn }}"
target_port: "{{ item.1.target_port }}"
target_az: "{{ item.1.target_az }}"
target_id: "{{ item.1.target_id }}"
state: present
target_status: "initial"
with_subelements:
- "{{ original_tgs }}"
- "targets"
# wait until all groups associated with this instance are 'healthy' or
# 'unused'
- name: wait for registration
community.aws.elb_target_info:
get_unused_target_groups: false
instance_id: "{{ ansible_ec2_instance_id }}"
region: "{{ ansible_ec2_placement_region }}"
register: target_info
until: (target_info.instance_target_groups |
map(attribute='targets') |
flatten |
map(attribute='target_health') |
rejectattr('state', 'equalto', 'healthy') |
rejectattr('state', 'equalto', 'unused') |
list |
length) == 0
retries: 61
delay: 10
# using the target groups to generate AWS CLI commands to reregister the
# instance - useful in case the playbook fails mid-run and manual
# rollback is required
- name: "reregistration commands: ELBv2s"
ansible.builtin.debug:
msg: >
aws --region {{ansible_ec2_placement_region}} elbv2
register-targets --target-group-arn {{item.target_group_arn}}
--targets{%for target in item.targets%}
Id={{target.target_id}},
Port={{target.target_port}}{%if target.target_az%},AvailabilityZone={{target.target_az}}
{%endif%}
{%endfor%}
loop: "{{target_info.instance_target_groups}}"
Return Values
Common return values are documented here, the following are the fields unique to this module:
Key |
Description |
---|---|
a list of target groups to which the instance is registered to Returned: always |
|
The ARN of the target group Returned: always Sample: [“arn:aws:elasticloadbalancing:eu-west-1:111111111111:targetgroup/target-group/deadbeefdeadbeef”] |
|
Which target type is used for this group Returned: always Sample: [“ip”, “instance”] |
|
A list of targets that point to this instance ID Returned: always |
|
which availability zone is explicitly associated with this target Returned: when an AZ is associated with this instance Sample: [“us-west-2a”] |
|
The target health description. See following link for all the possible values https://boto3.readthedocs.io/en/latest/reference/services/elbv2.html#ElasticLoadBalancingv2.Client.describe_target_health Returned: always |
|
description of target health Returned: if state!=present Sample: [“Target desregistration is in progress”] |
|
reason code for target health Returned: if state!=healthy Sample: [“Target.Deregistration in progress”] |
|
health state Returned: always Sample: [“healthy”, “draining”, “initial”, “unhealthy”, “unused”, “unavailable”] |
|
the target ID referring to this instance Returned: always Sample: [“i-deadbeef”, “1.2.3.4”] |
|
which port this target is listening on Returned: always Sample: [80] |
Authors
Yaakov Kuperman (@yaakov-github)