community.postgresql.postgresql_db – Add or remove PostgreSQL databases from a remote host¶

Note

This plugin is part of the community.postgresql collection (version 1.2.0).

To install it use: ansible-galaxy collection install community.postgresql.

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

Synopsis
Requirements
Parameters
Notes
See Also
Examples
Return Values

Synopsis ¶

Add or remove PostgreSQL databases from a remote host.

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
conn_limit string		Specifies the database connection limit.
dump_extra_args string added in 0.2.0 of community.postgresql		Provides additional arguments when state is `dump`. Cannot be used with dump-file-format-related arguments like ``--format=d``.
encoding string		Encoding of the database.
lc_collate string		Collation order (LC_COLLATE) to use in the database must match collation order of template database unless `template0` is used as template.
lc_ctype string		Character classification (LC_CTYPE) to use in the database (e.g. lower, upper, ...). Must match LC_CTYPE of template database unless `template0` is used as template.
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.
maintenance_db string	Default: "postgres"	The value specifies the initial database (which is also called as maintenance DB) that Ansible connects to.
name string / required		Name of the database to add or remove. aliases: db
owner string		Name of the role to set as owner of the database.
port integer	Default: 5432	Database port to connect (if needed). 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 dump present ← restore	The database state. `present` implies that the database should be created if necessary. `absent` implies that the database should be removed if present. `dump` requires a target definition to which the database will be backed up. (Added in Ansible 2.4) Note that in some PostgreSQL versions of pg_dump, which is an embedded PostgreSQL utility and is used by the module, returns rc 0 even when errors occurred (e.g. the connection is forbidden by pg_hba.conf, etc.), so the module returns changed=True but the dump has not actually been done. Please, be sure that your version of pg_dump returns rc 1 in this case. `restore` also requires a target definition from which the database will be restored. (Added in Ansible 2.4). The format of the backup will be detected based on the target name. Supported compression formats for dump and restore include `.pgc`, `.bz2`, `.gz` and `.xz`. Supported formats for dump and restore include `.sql` and `.tar`. Restore program is selected by target file format: `.tar` and `.pgc` are handled by pg_restore, other with pgsql.
tablespace path		The tablespace to set for the database https://www.postgresql.org/docs/current/sql-alterdatabase.html. If you want to move the database back to the default tablespace, explicitly set this to pg_default.
target path		File to back up or restore from. Used when state is `dump` or `restore`.
target_opts string		Additional arguments for pg_dump or restore program (pg_restore or psql, depending on target's format). Used when state is `dump` or `restore`.
template string		Template used to create the database.
trust_input boolean added in 0.2.0 of community.postgresql	Choices: no yes ←	If `no`, check whether values of parameters owner, conn_limit, encoding, db, template, tablespace, session_role are potentially dangerous. It makes sense to use `no` only when SQL injections via the parameters are possible.

Notes ¶

Note

State dump and restore don’t require psycopg2 since version 2.8.
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 a new database with name "acme"
  community.postgresql.postgresql_db:
    name: acme

# Note: If a template different from "template0" is specified,
# encoding and locale settings must match those of the template.
- name: Create a new database with name "acme" and specific encoding and locale # settings
  community.postgresql.postgresql_db:
    name: acme
    encoding: UTF-8
    lc_collate: de_DE.UTF-8
    lc_ctype: de_DE.UTF-8
    template: template0

# Note: Default limit for the number of concurrent connections to
# a specific database is "-1", which means "unlimited"
- name: Create a new database with name "acme" which has a limit of 100 concurrent connections
  community.postgresql.postgresql_db:
    name: acme
    conn_limit: "100"

- name: Dump an existing database to a file
  community.postgresql.postgresql_db:
    name: acme
    state: dump
    target: /tmp/acme.sql

- name: Dump an existing database to a file excluding the test table
  community.postgresql.postgresql_db:
    name: acme
    state: dump
    target: /tmp/acme.sql
    dump_extra_args: --exclude-table=test

- name: Dump an existing database to a file (with compression)
  community.postgresql.postgresql_db:
    name: acme
    state: dump
    target: /tmp/acme.sql.gz

- name: Dump a single schema for an existing database
  community.postgresql.postgresql_db:
    name: acme
    state: dump
    target: /tmp/acme.sql
    target_opts: "-n public"

- name: Dump only table1 and table2 from the acme database
  community.postgresql.postgresql_db:
    name: acme
    state: dump
    target: /tmp/table1_table2.sql
    target_opts: "-t table1 -t table2"

# Note: In the example below, if database foo exists and has another tablespace
# the tablespace will be changed to foo. Access to the database will be locked
# until the copying of database files is finished.
- name: Create a new database called foo in tablespace bar
  community.postgresql.postgresql_db:
    name: foo
    tablespace: bar

Return Values ¶

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

Key	Returned	Description
executed_commands list / elements=string added in 0.2.0 of community.postgresql	always	List of commands which tried to run. Sample: ['CREATE DATABASE acme']

Authors¶

Ansible Core Team

community.postgresql.postgresql_db – Add or remove PostgreSQL databases from a remote host¶

Synopsis¶

Requirements¶

Parameters¶

Notes¶

See Also¶

Examples¶

Return Values¶