Documentation

postgresql_membership – Add or remove PostgreSQL roles from groups

New in version 2.8.

Synopsis

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
db
string
Name of database to connect to.

aliases: login_db
fail_on_role
boolean
    Choices:
  • no
  • yes ←
If yes, fail when group or target_role doesn't exist. If no, just warn and continue.
groups
list / required
The list of groups (roles) that need to be granted to or revoked from target_roles.

aliases: group, source_role, source_roles
login_host
string
Host running the database.
login_password
string
The password used to authenticate with.
login_unix_socket
string
Path to a Unix domain socket for local connections.
login_user
string
Default:
"postgres"
The username used to authenticate with.
port
integer
Default:
5432
Database port to connect to.

aliases: login_port
session_role
string
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 ←
Membership state.
state=present implies the groupsmust be granted to target_roles.
state=absent implies the groups must be revoked from target_roles.
target_roles
list / required
The list of target roles (groups will be granted to them).

aliases: target_role, users, user

Notes

Note

  • 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: Grant role read_only to alice and bob
  postgresql_membership:
    group: read_only
    target_roles:
    - alice
    - bob
    state: present

# you can also use target_roles: alice,bob,etc to pass the role list

- name: Revoke role read_only and exec_func from bob. Ignore if roles don't exist
  postgresql_membership:
    groups:
    - read_only
    - exec_func
    target_role: bob
    fail_on_role: no
    state: absent

Return Values

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

Key Returned Description
granted
dictionary
if state=present
Dict of granted groups and roles.

Sample:
{'ro_group': ['alice', 'bob']}
queries
string
always
List of executed queries.

Sample:
['GRANT "user_ro" TO "alice"']
revoked
dictionary
if state=absent
Dict of revoked groups and roles.

Sample:
{'ro_group': ['alice', 'bob']}
state
string
always
Membership state that tried to be set.

Sample:
present


Status

Authors

  • Andrew Klychkov (@Andersson007)

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