community.postgresql.postgresql_privs – Grant or revoke privileges on PostgreSQL database objects

Note

This plugin is part of the community.postgresql collection (version 1.6.0).

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_privs.

Synopsis

  • Grant or revoke privileges on PostgreSQL database objects.

  • This module is basically a wrapper around most of the functionality of PostgreSQL’s GRANT and REVOKE statements with detection of changes (GRANT/REVOKE privs ON type objs TO/FROM roles).

Requirements

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

  • psycopg2

Parameters

Parameter

Comments

ca_cert

aliases: ssl_rootcert

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.

database

aliases: db, login_db

string / required

Name of database to connect to.

fail_on_role

boolean

If yes, fail when target role (for whom privs need to be granted) does not exist. Otherwise just warn and continue.

Choices:

  • no

  • yes ← (default)

grant_option

aliases: admin_option

boolean

Whether role may grant/revoke the specified privileges/group memberships to others.

Set to no to revoke GRANT OPTION, leave unspecified to make no changes.

grant_option only has an effect if state is present.

Choices:

  • no

  • yes

host

aliases: login_host

string

Database host address. If unspecified, connect via Unix socket.

login

aliases: login_user

string

The username to authenticate with.

Default: “postgres”

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

The username this module should use to establish its PostgreSQL session.

Default: “postgres”

objs

aliases: obj

string

Comma separated list of database objects to set privileges on.

If type is table, partition table, sequence, function or procedure, the special value ALL_IN_SCHEMA can be provided instead to specify all database objects of type in the schema specified via schema. (This also works with PostgreSQL < 9.0.) (ALL_IN_SCHEMA is available for function and partition table since Ansible 2.8).

procedure is supported since PostgreSQL 11 and community.postgresql collection 1.3.0.

If type is database, this parameter can be omitted, in which case privileges are set for the database specified via database.

If type is function or procedure, colons (“:”) in object names will be replaced with commas (needed to specify signatures, see examples).

password

aliases: login_password

string

The password to authenticate with.

port

aliases: login_port

integer

Database port to connect to.

Default: 5432

privs

aliases: priv

string

Comma separated list of privileges to grant/revoke.

roles

aliases: role

string / required

Comma separated list of role (user/group) names to set permissions for.

The special value PUBLIC can be provided instead to set permissions for the implicitly defined PUBLIC group.

schema

string

Schema that contains the database objects specified via objs.

May only be provided if type is table, sequence, function, procedure, type, or default_privs. Defaults to public in these cases.

Pay attention, for embedded types when type=type schema can be pg_catalog or information_schema respectively.

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

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.

Choices:

  • allow

  • disable

  • prefer ← (default)

  • require

  • verify-ca

  • verify-full

state

string

If present, the specified privileges are granted, if absent they are revoked.

Choices:

  • absent

  • present ← (default)

target_roles

string

A list of existing role (user/group) names to set as the default permissions for database objects subsequently created by them.

Parameter target_roles is only available with type=default_privs.

trust_input

boolean

added in 0.2.0 of community.postgresql

If no, check whether values of parameters roles, target_roles, session_role, schema are potentially dangerous.

It makes sense to use no only when SQL injections via the parameters are possible.

Choices:

  • no

  • yes ← (default)

type

string

Type of database object to set privileges on.

The default_privs choice is available starting at version 2.7.

The foreign_data_wrapper and foreign_server object types are available since Ansible version 2.8.

The type choice is available since Ansible version 2.10.

The procedure is supported since collection version 1.3.0 and PostgreSQL 11.

Choices:

  • database

  • default_privs

  • foreign_data_wrapper

  • foreign_server

  • function

  • group

  • language

  • table ← (default)

  • tablespace

  • schema

  • sequence

  • type

  • procedure

unix_socket

aliases: login_unix_socket

string

Path to a Unix domain socket for local connections.

usage_on_types

boolean

added in 1.2.0 of community.postgresql

When adding default privileges, the module always implicitly adds USAGE ON TYPES.

To avoid this behavior, set usage_on_types to no.

Added to save backwards compatibility.

Used only when adding default privileges, ignored otherwise.

Choices:

  • no

  • yes ← (default)

Notes

Note

  • Supports check_mode.

  • Parameters that accept comma separated lists (privs, objs, roles) have singular alias names (priv, obj, role).

  • To revoke only GRANT OPTION for a specific object, set state to present and grant_option to no (see examples).

  • Note that when revoking privileges from a role R, this role may still have access via privileges granted to any role R is a member of including PUBLIC.

  • Note that when you use PUBLIC role, the module always reports that the state has been changed.

  • Note that when revoking privileges from a role R, you do so as the user specified via login. If R has been granted the same privileges by another user also, R can still access database objects via these privileges.

  • When revoking privileges, RESTRICT is assumed (see PostgreSQL docs).

  • 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.

See Also

See also

community.postgresql.postgresql_user

The official documentation on the community.postgresql.postgresql_user module.

community.postgresql.postgresql_owner

The official documentation on the community.postgresql.postgresql_owner module.

community.postgresql.postgresql_membership

The official documentation on the community.postgresql.postgresql_membership module.

PostgreSQL privileges

General information about PostgreSQL privileges.

PostgreSQL GRANT command reference

Complete reference of the PostgreSQL GRANT command documentation.

PostgreSQL REVOKE command reference

Complete reference of the PostgreSQL REVOKE command documentation.

Examples

# On database "library":
# GRANT SELECT, INSERT, UPDATE ON TABLE public.books, public.authors
# TO librarian, reader WITH GRANT OPTION
- name: Grant privs to librarian and reader on database library
  community.postgresql.postgresql_privs:
    database: library
    state: present
    privs: SELECT,INSERT,UPDATE
    type: table
    objs: books,authors
    schema: public
    roles: librarian,reader
    grant_option: yes

- name: Same as above leveraging default values
  community.postgresql.postgresql_privs:
    db: library
    privs: SELECT,INSERT,UPDATE
    objs: books,authors
    roles: librarian,reader
    grant_option: yes

# REVOKE GRANT OPTION FOR INSERT ON TABLE books FROM reader
# Note that role "reader" will be *granted* INSERT privilege itself if this
# isn't already the case (since state: present).
- name: Revoke privs from reader
  community.postgresql.postgresql_privs:
    db: library
    state: present
    priv: INSERT
    obj: books
    role: reader
    grant_option: no

# "public" is the default schema. This also works for PostgreSQL 8.x.
- name: REVOKE INSERT, UPDATE ON ALL TABLES IN SCHEMA public FROM reader
  community.postgresql.postgresql_privs:
    db: library
    state: absent
    privs: INSERT,UPDATE
    objs: ALL_IN_SCHEMA
    role: reader

- name: GRANT ALL PRIVILEGES ON SCHEMA public, math TO librarian
  community.postgresql.postgresql_privs:
    db: library
    privs: ALL
    type: schema
    objs: public,math
    role: librarian

# Note the separation of arguments with colons.
- name: GRANT ALL PRIVILEGES ON FUNCTION math.add(int, int) TO librarian, reader
  community.postgresql.postgresql_privs:
    db: library
    privs: ALL
    type: function
    obj: add(int:int)
    schema: math
    roles: librarian,reader

# Note that group role memberships apply cluster-wide and therefore are not
# restricted to database "library" here.
- name: GRANT librarian, reader TO alice, bob WITH ADMIN OPTION
  community.postgresql.postgresql_privs:
    db: library
    type: group
    objs: librarian,reader
    roles: alice,bob
    admin_option: yes

# Note that here "db: postgres" specifies the database to connect to, not the
# database to grant privileges on (which is specified via the "objs" param)
- name: GRANT ALL PRIVILEGES ON DATABASE library TO librarian
  community.postgresql.postgresql_privs:
    db: postgres
    privs: ALL
    type: database
    obj: library
    role: librarian

# If objs is omitted for type "database", it defaults to the database
# to which the connection is established
- name: GRANT ALL PRIVILEGES ON DATABASE library TO librarian
  community.postgresql.postgresql_privs:
    db: library
    privs: ALL
    type: database
    role: librarian

# Available since version 2.7
# Objs must be set, ALL_DEFAULT to TABLES/SEQUENCES/TYPES/FUNCTIONS
# ALL_DEFAULT works only with privs=ALL
# For specific
- name: ALTER DEFAULT PRIVILEGES ON DATABASE library TO librarian
  community.postgresql.postgresql_privs:
    db: library
    objs: ALL_DEFAULT
    privs: ALL
    type: default_privs
    role: librarian
    grant_option: yes

# Available since version 2.7
# Objs must be set, ALL_DEFAULT to TABLES/SEQUENCES/TYPES/FUNCTIONS
# ALL_DEFAULT works only with privs=ALL
# For specific
- name: ALTER DEFAULT PRIVILEGES ON DATABASE library TO reader, step 1
  community.postgresql.postgresql_privs:
    db: library
    objs: TABLES,SEQUENCES
    privs: SELECT
    type: default_privs
    role: reader

- name: ALTER DEFAULT PRIVILEGES ON DATABASE library TO reader, step 2
  community.postgresql.postgresql_privs:
    db: library
    objs: TYPES
    privs: USAGE
    type: default_privs
    role: reader

# Available since version 2.8
- name: GRANT ALL PRIVILEGES ON FOREIGN DATA WRAPPER fdw TO reader
  community.postgresql.postgresql_privs:
    db: test
    objs: fdw
    privs: ALL
    type: foreign_data_wrapper
    role: reader

# Available since community.postgresql 0.2.0
- name: GRANT ALL PRIVILEGES ON TYPE customtype TO reader
  community.postgresql.postgresql_privs:
    db: test
    objs: customtype
    privs: ALL
    type: type
    role: reader

# Available since version 2.8
- name: GRANT ALL PRIVILEGES ON FOREIGN SERVER fdw_server TO reader
  community.postgresql.postgresql_privs:
    db: test
    objs: fdw_server
    privs: ALL
    type: foreign_server
    role: reader

# Available since version 2.8
# Grant 'execute' permissions on all functions in schema 'common' to role 'caller'
- name: GRANT EXECUTE ON ALL FUNCTIONS IN SCHEMA common TO caller
  community.postgresql.postgresql_privs:
    type: function
    state: present
    privs: EXECUTE
    roles: caller
    objs: ALL_IN_SCHEMA
    schema: common

# Available since collection version 1.3.0
# Grant 'execute' permissions on all procedures in schema 'common' to role 'caller'
# Needs PostreSQL 11 or higher and community.postgresql 1.3.0 or higher
- name: GRANT EXECUTE ON ALL PROCEDURES IN SCHEMA common TO caller
  community.postgresql.postgresql_privs:
    type: prucedure
    state: present
    privs: EXECUTE
    roles: caller
    objs: ALL_IN_SCHEMA
    schema: common

# Available since version 2.8
# ALTER DEFAULT PRIVILEGES FOR ROLE librarian IN SCHEMA library GRANT SELECT ON TABLES TO reader
# GRANT SELECT privileges for new TABLES objects created by librarian as
# default to the role reader.
# For specific
- name: ALTER privs
  community.postgresql.postgresql_privs:
    db: library
    schema: library
    objs: TABLES
    privs: SELECT
    type: default_privs
    role: reader
    target_roles: librarian

# Available since version 2.8
# ALTER DEFAULT PRIVILEGES FOR ROLE librarian IN SCHEMA library REVOKE SELECT ON TABLES FROM reader
# REVOKE SELECT privileges for new TABLES objects created by librarian as
# default from the role reader.
# For specific
- name: ALTER privs
  community.postgresql.postgresql_privs:
    db: library
    state: absent
    schema: library
    objs: TABLES
    privs: SELECT
    type: default_privs
    role: reader
    target_roles: librarian

# Available since community.postgresql 0.2.0
- name: Grant type privileges for pg_catalog.numeric type to alice
  community.postgresql.postgresql_privs:
    type: type
    roles: alice
    privs: ALL
    objs: numeric
    schema: pg_catalog
    db: acme

Return Values

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

Key

Description

queries

list / elements=string

List of executed queries.

Returned: always

Sample: [“REVOKE GRANT OPTION FOR INSERT ON TABLE \”books\” FROM \”reader\”;”]

Authors

  • Bernhard Weitzhofer (@b6d)

  • Tobias Birkefeld (@tcraxs)