# postgresql_schema – Add or remove PostgreSQL schema

- Synopsis

- Requirements

- Parameters

- Notes

- See Also

- Examples

- Return Values

- Status

## Synopsis

- Add or remove PostgreSQL schema.

## 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_drop
boolean
added in 2.8

Choices:
- no ←
- yes

Drop schema with CASCADE to remove child objects.

database string | Default: "postgres" | Name of the database to connect to and add or remove the schema. aliases: db, login_db
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.
name string / required |  | Name of the schema to add or remove. aliases: schema
owner string |  | Name of the role to set as owner of the schema.
port integer | Default: 5432 | Database port to connect to. aliases: login_port
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 schema state.

## 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.

## See Also

See also

PostgreSQL schemas

  General information about PostgreSQL schemas.

CREATE SCHEMA reference

  Complete reference of the CREATE SCHEMA command documentation.

ALTER SCHEMA reference

  Complete reference of the ALTER SCHEMA command documentation.

DROP SCHEMA reference

  Complete reference of the DROP SCHEMA command documentation.

## Examples

    - name: Create a new schema with name acme in test database
      postgresql_schema:
        db: test
        name: acme

    - name: Create a new schema acme with a user bob who will own it
      postgresql_schema:
        name: acme
        owner: bob

    - name: Drop schema "acme" with cascade
      postgresql_schema:
        name: acme
        state: absent
        cascade_drop: yes

## Return Values

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

Key | Returned | Description
--- | --- | ---
queries list | always | List of executed queries. Sample: ['CREATE SCHEMA "acme"']
schema string | success, changed | Name of the schema. Sample: acme

## Status

- This module is not guaranteed to have a backwards compatible interface. [preview]

- This module is maintained by the Ansible Community. [community]

### Authors

- Flavien Chantelot (@Dorn-) <contact@flavien.io>

- Thomas O’Donnell (@andytom)

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