google.cloud.gcp_compute_target_pool module – Creates a GCP TargetPool

Note

This module is part of the google.cloud collection (version 1.0.2).

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 google.cloud. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: google.cloud.gcp_compute_target_pool.

Synopsis

  • Represents a TargetPool resource, used for Load Balancing.

Requirements

The below requirements are needed on the host that executes this module.

  • python >= 2.6

  • requests >= 2.18.4

  • google-auth >= 1.3.0

Parameters

Parameter

Comments

auth_kind

string / required

The type of credential used.

Choices:

  • "application"

  • "machineaccount"

  • "serviceaccount"

backup_pool

dictionary

This field is applicable only when the containing target pool is serving a forwarding rule as the primary pool, and its failoverRatio field is properly set to a value between [0, 1].

backupPool and failoverRatio together define the fallback behavior of the primary target pool: if the ratio of the healthy instances in the primary pool is at or below failoverRatio, traffic arriving at the load-balanced IP will be directed to the backup pool.

In case where failoverRatio and backupPool are not set, or all the instances in the backup pool are unhealthy, the traffic will be directed back to the primary pool in the “force” mode, where traffic will be spread to the healthy instances with the best effort, or to all instances when no instance is healthy.

This field represents a link to a TargetPool resource in GCP. It can be specified in two ways. First, you can place a dictionary with key ‘selfLink’ and value of your resource’s selfLink Alternatively, you can add `register: name-of-resource` to a gcp_compute_target_pool task and then set this backup_pool field to “{{ name-of-resource }}”

description

string

An optional description of this resource.

env_type

string

Specifies which Ansible environment you’re running this module within.

This should not be set unless you know what you’re doing.

This only alters the User Agent string for any API requests.

failover_ratio

string

This field is applicable only when the containing target pool is serving a forwarding rule as the primary pool (i.e., not as a backup pool to some other target pool). The value of the field must be in [0, 1].

If set, backupPool must also be set. They together define the fallback behavior of the primary target pool: if the ratio of the healthy instances in the primary pool is at or below this number, traffic arriving at the load-balanced IP will be directed to the backup pool.

In case where failoverRatio is not set or all the instances in the backup pool are unhealthy, the traffic will be directed back to the primary pool in the “force” mode, where traffic will be spread to the healthy instances with the best effort, or to all instances when no instance is healthy.

health_check

dictionary

A reference to a HttpHealthCheck resource.

A member instance in this pool is considered healthy if and only if the health checks pass. If not specified it means all member instances will be considered healthy at all times.

This field represents a link to a HttpHealthCheck resource in GCP. It can be specified in two ways. First, you can place a dictionary with key ‘selfLink’ and value of your resource’s selfLink Alternatively, you can add `register: name-of-resource` to a gcp_compute_http_health_check task and then set this health_check field to “{{ name-of-resource }}”

instances

list / elements=dictionary

A list of virtual machine instances serving this pool.

They must live in zones contained in the same region as this pool.

name

string / required

Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.

project

string

The Google Cloud Platform project to use.

region

string / required

The region where the target pool resides.

scopes

list / elements=string

Array of scopes to be used

service_account_contents

jsonarg

The contents of a Service Account JSON file, either in a dictionary or as a JSON string that represents it.

service_account_email

string

An optional service account email address if machineaccount is selected and the user does not wish to use the default email.

service_account_file

path

The path of a Service Account JSON file if serviceaccount is selected as type.

session_affinity

string

Session affinity option. Must be one of these values: * NONE: Connections from the same client IP may go to any instance in the pool.

* CLIENT_IP: Connections from the same client IP will go to the same instance in the pool while that instance remains healthy.

* CLIENT_IP_PROTO: Connections from the same client IP with the same IP protocol will go to the same instance in the pool while that instance remains healthy.

Some valid choices include: “NONE”, “CLIENT_IP”, “CLIENT_IP_PROTO”

state

string

Whether the given object should exist in GCP

Choices:

  • "present" ← (default)

  • "absent"

Notes

Note

  • API Reference: https://cloud.google.com/compute/docs/reference/rest/v1/targetPools

  • Official Documentation: https://cloud.google.com/compute/docs/load-balancing/network/target-pools

  • for authentication, you can set service_account_file using the gcp_service_account_file env variable.

  • for authentication, you can set service_account_contents using the GCP_SERVICE_ACCOUNT_CONTENTS env variable.

  • For authentication, you can set service_account_email using the GCP_SERVICE_ACCOUNT_EMAIL env variable.

  • For authentication, you can set auth_kind using the GCP_AUTH_KIND env variable.

  • For authentication, you can set scopes using the GCP_SCOPES env variable.

  • Environment variables values will only be used if the playbook values are not set.

  • The service_account_email and service_account_file options are mutually exclusive.

Examples

- name: create a target pool
  google.cloud.gcp_compute_target_pool:
    name: test_object
    region: us-west1
    project: test_project
    auth_kind: serviceaccount
    service_account_file: "/tmp/auth.pem"
    state: present

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key

Description

backupPool

dictionary

This field is applicable only when the containing target pool is serving a forwarding rule as the primary pool, and its failoverRatio field is properly set to a value between [0, 1].

backupPool and failoverRatio together define the fallback behavior of the primary target pool: if the ratio of the healthy instances in the primary pool is at or below failoverRatio, traffic arriving at the load-balanced IP will be directed to the backup pool.

In case where failoverRatio and backupPool are not set, or all the instances in the backup pool are unhealthy, the traffic will be directed back to the primary pool in the “force” mode, where traffic will be spread to the healthy instances with the best effort, or to all instances when no instance is healthy.

Returned: success

creationTimestamp

string

Creation timestamp in RFC3339 text format.

Returned: success

description

string

An optional description of this resource.

Returned: success

failoverRatio

string

This field is applicable only when the containing target pool is serving a forwarding rule as the primary pool (i.e., not as a backup pool to some other target pool). The value of the field must be in [0, 1].

If set, backupPool must also be set. They together define the fallback behavior of the primary target pool: if the ratio of the healthy instances in the primary pool is at or below this number, traffic arriving at the load-balanced IP will be directed to the backup pool.

In case where failoverRatio is not set or all the instances in the backup pool are unhealthy, the traffic will be directed back to the primary pool in the “force” mode, where traffic will be spread to the healthy instances with the best effort, or to all instances when no instance is healthy.

Returned: success

healthCheck

dictionary

A reference to a HttpHealthCheck resource.

A member instance in this pool is considered healthy if and only if the health checks pass. If not specified it means all member instances will be considered healthy at all times.

Returned: success

id

integer

The unique identifier for the resource.

Returned: success

instances

list / elements=string

A list of virtual machine instances serving this pool.

They must live in zones contained in the same region as this pool.

Returned: success

name

string

Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.

Returned: success

region

string

The region where the target pool resides.

Returned: success

sessionAffinity

string

Session affinity option. Must be one of these values: * NONE: Connections from the same client IP may go to any instance in the pool.

* CLIENT_IP: Connections from the same client IP will go to the same instance in the pool while that instance remains healthy.

* CLIENT_IP_PROTO: Connections from the same client IP with the same IP protocol will go to the same instance in the pool while that instance remains healthy.

Returned: success

Authors

  • Google Inc. (@googlecloudplatform)