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# postgresql_ext – Add or remove PostgreSQL extensions from a database

- Synopsis
- Requirements
- Parameters
- Notes
- See Also
- Examples
- Return Values
- Status

## Synopsis

- Add or remove PostgreSQL extensions from a database.

## Requirements

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

- psycopg2

## Parameters

Parameter | Choices/Defaults | Comments
--- | --- | ---
ca_cert string added in 2.8 |  | 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 added in 2.8 | Choices: no ← yes | Automatically install/remove any extensions that this extension depends on that are not already installed/removed (supported since PostgreSQL 9.6).
db string / required |  | Name of the database to add or remove the extension to/from. aliases: login_db
login_host string |  | Host running the database.
login_password string |  | The password used to authenticate with.
login_unix_socket string added in 2.8 |  | Path to a Unix domain socket for local connections.
login_user string | Default: "postgres" | The username used to authenticate with.
name string / required |  | Name of the extension to add or remove. aliases: ext
port integer | Default: 5432 | Database port to connect to. aliases: login_port
schema string added in 2.8 |  | Name of the schema to add the extension to.
session_role string added in 2.8 |  | 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 added in 2.8 | 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 ← | The database extension state.
version string added in 2.9 |  | Extension version to add or update to. Has effect with state=present only. If not specified, the latest extension version will be created. It can't downgrade an extension version. When version downgrade is needed, remove the extension and create new one with appropriate version. Set version=latest to update the extension to the latest available version.

## Notes

Note

- The default authentication assumes that you are either logging in as or sudo’ing to the `postgres` account on the host.
- 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 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

PostgreSQL extensions
  General information about PostgreSQL extensions.
CREATE EXTENSION reference
  Complete reference of the CREATE EXTENSION command documentation.
ALTER EXTENSION reference
  Complete reference of the ALTER EXTENSION command documentation.
DROP EXTENSION reference
  Complete reference of the DROP EXTENSION command documentation.

## Examples

    - name: Adds postgis extension to the database acme in the schema foo
      postgresql_ext:
        name: postgis
        db: acme
        schema: foo

    - name: Removes postgis extension to the database acme
      postgresql_ext:
        name: postgis
        db: acme
        state: absent

    - name: Adds earthdistance extension to the database template1 cascade
      postgresql_ext:
        name: earthdistance
        db: template1
        cascade: true

    # In the example below, if earthdistance extension is installed,
    # it will be removed too because it depends on cube:
    - name: Removes cube extension from the database acme cascade
      postgresql_ext:
        name: cube
        db: acme
        cascade: yes
        state: absent

    - name: Create extension foo of version 1.2 or update it if it's already created
      postgresql_ext:
        db: acme
        name: foo
        version: 1.2

    - name: Assuming extension foo is created, update it to the latest version
      postgresql_ext:
        db: acme
        name: foo
        version: latest

## Return Values

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

Key | Returned | Description
--- | --- | ---
query list | always | List of executed queries. Sample: ['DROP EXTENSION "acme"']

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]
- This module is maintained by the Ansible Community. [community]

### Authors

- Daniel Schep (@dschep)
- Thomas O’Donnell (@andytom)
- Sandro Santilli (@strk)
- Andrew Klychkov (@Andersson007)

Hint

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