gcp_pubsub_subscription – Creates a GCP Subscription

New in version 2.6.

Synopsis

  • A named resource representing the stream of messages from a single, specific topic, to be delivered to the subscribing application.

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 Choices/Defaults Comments
ack_deadline_seconds
integer
This value is the maximum time after a subscriber receives a message before the subscriber should acknowledge the message. After message delivery but before the ack deadline expires and before the message is acknowledged, it is an outstanding message and will not be delivered again during that time (on a best-effort basis).
For pull subscriptions, this value is used as the initial value for the ack deadline. To override this value for a given message, call subscriptions.modifyAckDeadline with the corresponding ackId if using pull. The minimum custom deadline you can specify is 10 seconds. The maximum custom deadline you can specify is 600 seconds (10 minutes).
If this parameter is 0, a default value of 10 seconds is used.
For push delivery, this value is also used to set the request timeout for the call to the push endpoint.
If the subscriber never acknowledges the message, the Pub/Sub system will eventually redeliver the message.
auth_kind
string / required
    Choices:
  • application
  • machineaccount
  • serviceaccount
The type of credential used.
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.
expiration_policy
dictionary
added in 2.9
A policy that specifies the conditions for this subscription's expiration.
A subscription is considered active as long as any connected subscriber is successfully consuming messages from the subscription or is issuing operations on the subscription. If expirationPolicy is not set, a default policy with ttl of 31 days will be used. The minimum allowed value for expirationPolicy.ttl is 1 day.
ttl
string
Specifies the "time-to-live" duration for an associated resource. The resource expires if it is not active for a period of ttl. The definition of "activity" depends on the type of the associated resource. The minimum and maximum allowed values for ttl depend on the type of the associated resource, as well. If ttl is not set, the associated resource never expires.
A duration in seconds with up to nine fractional digits, terminated by 's'.
Example - "3.5s".
labels
dictionary
added in 2.8
A set of key/value label pairs to assign to this Subscription.
message_retention_duration
string
added in 2.8
 Default:
"604800s"
How long to retain unacknowledged messages in the subscription's backlog, from the moment a message is published. If retainAckedMessages is true, then this also configures the retention of acknowledged messages, and thus configures how far back in time a subscriptions.seek can be done. Defaults to 7 days. Cannot be more than 7 days (`"604800s"`) or less than 10 minutes (`"600s"`).
A duration in seconds with up to nine fractional digits, terminated by 's'. Example: `"600.5s"`.
name
string / required
Name of the subscription.
project
string
The Google Cloud Platform project to use.
push_config
dictionary
If push delivery is used with this subscription, this field is used to configure it. An empty pushConfig signifies that the subscriber will pull and ack messages using API methods.
attributes
dictionary
Endpoint configuration attributes.
Every endpoint has a set of API supported attributes that can be used to control different aspects of the message delivery.
The currently supported attribute is x-goog-version, which you can use to change the format of the pushed message. This attribute indicates the version of the data expected by the endpoint. This controls the shape of the pushed message (i.e., its fields and metadata). The endpoint version is based on the version of the Pub/Sub API.
If not present during the subscriptions.create call, it will default to the version of the API used to make such call. If not present during a subscriptions.modifyPushConfig call, its value will not be changed. subscriptions.get calls will always return a valid version, even if the subscription was created without this attribute.
The possible values for this attribute are: - v1beta1: uses the push format defined in the v1beta1 Pub/Sub API.
- v1 or v1beta2: uses the push format defined in the v1 Pub/Sub API.
push_endpoint
string / required
A URL locating the endpoint to which messages should be pushed.
For example, a Webhook endpoint might use "https://example.com/push".
retain_acked_messages
boolean
added in 2.8
    Choices:
  • no
  • yes
Indicates whether to retain acknowledged messages. If `true`, then messages are not expunged from the subscription's backlog, even if they are acknowledged, until they fall out of the messageRetentionDuration window.
scopes
list
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.
state
string
    Choices:
  • present ←
  • absent
Whether the given object should exist in GCP
topic
dictionary / required
A reference to a Topic resource.
This field represents a link to a Topic resource in GCP. It can be specified in two ways. First, you can place a dictionary with key 'name' and value of your resource's name Alternatively, you can add `register: name-of-resource` to a gcp_pubsub_topic task and then set this topic field to "{{ name-of-resource }}"

Notes

Note

  • API Reference: https://cloud.google.com/pubsub/docs/reference/rest/v1/projects.subscriptions

  • Managing Subscriptions: https://cloud.google.com/pubsub/docs/admin#managing_subscriptions

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

  • for authentication, you can set service_account_contents using the c(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 topic
  gcp_pubsub_topic:
    name: topic-subscription
    project: "{{ gcp_project }}"
    auth_kind: "{{ gcp_cred_kind }}"
    service_account_file: "{{ gcp_cred_file }}"
    state: present
  register: topic

- name: create a subscription
  gcp_pubsub_subscription:
    name: test_object
    topic: "{{ topic }}"
    ack_deadline_seconds: 300
    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 Returned Description
ackDeadlineSeconds
integer
success
This value is the maximum time after a subscriber receives a message before the subscriber should acknowledge the message. After message delivery but before the ack deadline expires and before the message is acknowledged, it is an outstanding message and will not be delivered again during that time (on a best-effort basis).
For pull subscriptions, this value is used as the initial value for the ack deadline. To override this value for a given message, call subscriptions.modifyAckDeadline with the corresponding ackId if using pull. The minimum custom deadline you can specify is 10 seconds. The maximum custom deadline you can specify is 600 seconds (10 minutes).
If this parameter is 0, a default value of 10 seconds is used.
For push delivery, this value is also used to set the request timeout for the call to the push endpoint.
If the subscriber never acknowledges the message, the Pub/Sub system will eventually redeliver the message.
expirationPolicy
complex
success
A policy that specifies the conditions for this subscription's expiration.
A subscription is considered active as long as any connected subscriber is successfully consuming messages from the subscription or is issuing operations on the subscription. If expirationPolicy is not set, a default policy with ttl of 31 days will be used. The minimum allowed value for expirationPolicy.ttl is 1 day.
 
ttl
string
success
Specifies the "time-to-live" duration for an associated resource. The resource expires if it is not active for a period of ttl. The definition of "activity" depends on the type of the associated resource. The minimum and maximum allowed values for ttl depend on the type of the associated resource, as well. If ttl is not set, the associated resource never expires.
A duration in seconds with up to nine fractional digits, terminated by 's'.
Example - "3.5s".
labels
dictionary
success
A set of key/value label pairs to assign to this Subscription.
messageRetentionDuration
string
success
How long to retain unacknowledged messages in the subscription's backlog, from the moment a message is published. If retainAckedMessages is true, then this also configures the retention of acknowledged messages, and thus configures how far back in time a subscriptions.seek can be done. Defaults to 7 days. Cannot be more than 7 days (`"604800s"`) or less than 10 minutes (`"600s"`).
A duration in seconds with up to nine fractional digits, terminated by 's'. Example: `"600.5s"`.
name
string
success
Name of the subscription.
pushConfig
complex
success
If push delivery is used with this subscription, this field is used to configure it. An empty pushConfig signifies that the subscriber will pull and ack messages using API methods.
 
attributes
dictionary
success
Endpoint configuration attributes.
Every endpoint has a set of API supported attributes that can be used to control different aspects of the message delivery.
The currently supported attribute is x-goog-version, which you can use to change the format of the pushed message. This attribute indicates the version of the data expected by the endpoint. This controls the shape of the pushed message (i.e., its fields and metadata). The endpoint version is based on the version of the Pub/Sub API.
If not present during the subscriptions.create call, it will default to the version of the API used to make such call. If not present during a subscriptions.modifyPushConfig call, its value will not be changed. subscriptions.get calls will always return a valid version, even if the subscription was created without this attribute.
The possible values for this attribute are: - v1beta1: uses the push format defined in the v1beta1 Pub/Sub API.
- v1 or v1beta2: uses the push format defined in the v1 Pub/Sub API.
 
pushEndpoint
string
success
A URL locating the endpoint to which messages should be pushed.
For example, a Webhook endpoint might use "https://example.com/push".
retainAckedMessages
boolean
success
Indicates whether to retain acknowledged messages. If `true`, then messages are not expunged from the subscription's backlog, even if they are acknowledged, until they fall out of the messageRetentionDuration window.
topic
dictionary
success
A reference to a Topic resource.


Status

Authors

  • Google Inc. (@googlecloudplatform)

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