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community.postgresql.postgresql_subscription – Add, update, or remove PostgreSQL subscription

Note

This plugin is part of the community.postgresql 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.postgresql.

To use it in a playbook, specify: community.postgresql.postgresql_subscription.

New in version 0.2.0: of community.postgresql

Synopsis
Requirements
Parameters
Notes
See Also
Examples
Return Values

Synopsis

Add, update, or remove PostgreSQL subscription.

Requirements

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

psycopg2

Parameters

Parameter	Choices/Defaults	Comments
ca_cert string		Specifies the name of a file containing SSL certificate authority (CA) certificate(s). If the file exists, the server's certificate will be verified to be signed by one of these authorities. aliases: ssl_rootcert
cascade boolean	Choices: no ← yes	Drop subscription dependencies. Has effect with state=absent only. Ignored when state is not `absent`.
connparams dictionary		The connection dict param-value to connect to the publisher. For more information see https://www.postgresql.org/docs/current/libpq-connect.html#LIBPQ-CONNSTRING. Ignored when state is not `present`.
db string / required		Name of the database to connect to and where the subscription state will be changed. aliases: login_db
login_host string		Host running the database. If you have connection issues when using `localhost`, try to use `127.0.0.1` instead.
login_password string		The password this module should use to establish its PostgreSQL session.
login_unix_socket string		Path to a Unix domain socket for local connections.
login_user string	Default: "postgres"	The username this module should use to establish its PostgreSQL session.
name string / required		Name of the subscription to add, update, or remove.
owner string		Subscription owner. If owner is not defined, the owner will be set as login_user or session_role. Ignored when state is not `present`.
port integer	Default: 5432	Database port to connect to. aliases: login_port
publications list / elements=string		The publication names on the publisher to use for the subscription. Ignored when state is not `present`.
session_role string added in 0.2.0 of community.postgresql		Switch to session_role after connecting. The specified session_role must be a role that the current login_user is a member of. Permissions checking for SQL commands is carried out as though the session_role were the one that had logged in originally.
ssl_mode string	Choices: allow disable prefer ← require verify-ca verify-full	Determines whether or with what priority a secure SSL TCP/IP connection will be negotiated with the server. See https://www.postgresql.org/docs/current/static/libpq-ssl.html for more information on the modes. Default of `prefer` matches libpq default.
state string	Choices: absent present ← refresh	The subscription state. `present` implies that if name subscription doesn't exist, it will be created. `absent` implies that if name subscription exists, it will be removed. `refresh` implies that if name subscription exists, it will be refreshed. Fetch missing table information from publisher. Always returns ``changed`` is ``True``. This will start replication of tables that were added to the subscribed-to publications since the last invocation of REFRESH PUBLICATION or since CREATE SUBSCRIPTION. The existing data in the publications that are being subscribed to should be copied once the replication starts. For more information about `refresh` see https://www.postgresql.org/docs/current/sql-altersubscription.html.
subsparams dictionary		Dictionary of optional parameters for a subscription, e.g. copy_data, enabled, create_slot, etc. For update the subscription allowed keys are `enabled`, `slot_name`, `synchronous_commit`, `publication_name`. See available parameters to create a new subscription on https://www.postgresql.org/docs/current/sql-createsubscription.html. Ignored when state is not `present`.
trust_input boolean added in 0.2.0 of community.postgresql	Choices: no yes ←	If `no`, check whether values of parameters name, publications, owner, session_role, connparams, subsparams are potentially dangerous. It makes sense to use `yes` only when SQL injections via the parameters are possible.

Notes

Note

PostgreSQL version must be 10 or greater.
Supports check_mode.
The default authentication assumes that you are either logging in as or sudo’ing to the postgres account on the host.
To avoid “Peer authentication failed for user postgres” error, use postgres user as a become_user.
This module uses psycopg2, a Python PostgreSQL database adapter. You must ensure that psycopg2 is installed on the host before using this module.
If the remote host is the PostgreSQL server (which is the default case), then PostgreSQL must also be installed on the remote host.
For Ubuntu-based systems, install the postgresql, libpq-dev, and python-psycopg2 packages on the remote host before using this module.
The ca_cert parameter requires at least Postgres version 8.4 and psycopg2 version 2.4.3.

Examples

- name: >
    Create acme subscription in mydb database using acme_publication and
    the following connection parameters to connect to the publisher.
    Set the subscription owner as alice.
  community.postgresql.postgresql_subscription:
    db: mydb
    name: acme
    state: present
    publications: acme_publication
    owner: alice
    connparams:
      host: 127.0.0.1
      port: 5432
      user: repl
      password: replpass
      dbname: mydb

- name: Assuming that acme subscription exists, try to change conn parameters
  community.postgresql.postgresql_subscription:
    db: mydb
    name: acme
    connparams:
      host: 127.0.0.1
      port: 5432
      user: repl
      password: replpass
      connect_timeout: 100

- name: Refresh acme publication
  community.postgresql.postgresql_subscription:
    db: mydb
    name: acme
    state: refresh

- name: Drop acme subscription from mydb with dependencies (cascade=yes)
  community.postgresql.postgresql_subscription:
    db: mydb
    name: acme
    state: absent
    cascade: yes

- name: Assuming that acme subscription exists and enabled, disable the subscription
  community.postgresql.postgresql_subscription:
    db: mydb
    name: acme
    state: present
    subsparams:
      enabled: no

Return Values

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

Key	Returned	Description
exists boolean	always	Flag indicates the subscription exists or not at the end of runtime. Sample: True
final_state dictionary	always	Subscription configuration at the end of runtime. Sample: {'conninfo': {}, 'enabled': True, 'owner': 'postgres', 'slotname': 'test', 'synccommit': True}
initial_state dictionary	always	Subscription configuration at the beginning of runtime. Sample: {'conninfo': {}, 'enabled': True, 'owner': 'postgres', 'slotname': 'test', 'synccommit': True}
name string	always	Name of the subscription. Sample: acme
queries string	always	List of executed queries. Sample: ['DROP SUBSCRIPTION "mysubscription"']

Authors

Andrew Klychkov (@Andersson007) <aaklychkov@mail.ru>

© 2012–2018 Michael DeHaan
© 2018–2021 Red Hat, Inc.
Licensed under the GNU General Public License version 3.
https://docs.ansible.com/ansible/latest/collections/community/postgresql/postgresql_subscription_module.html