postgresql_ping – Check remote PostgreSQL server availability¶

New in version 2.8.

Synopsis
Requirements
Parameters
Notes
See Also
Examples
Return Values
Status

Synopsis ¶

Simple module to check remote PostgreSQL server availability.

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 a database to connect to. aliases: 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.
port integer	Default: 5432	Database port to connect to. aliases: login_port
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.

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 ¶

# PostgreSQL ping dbsrv server from the shell:
# ansible dbsrv -m postgresql_ping

# In the example below you need to generate certificates previously.
# See https://www.postgresql.org/docs/current/libpq-ssl.html for more information.
- name: PostgreSQL ping dbsrv server using not default credentials and ssl
  postgresql_ping:
    db: protected_db
    login_host: dbsrv
    login_user: secret
    login_password: secret_pass
    ca_cert: /root/root.crt
    ssl_mode: verify-full

Return Values ¶

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

Key	Returned	Description
is_available boolean	always	PostgreSQL server availability. Sample: True
server_version dictionary	always	PostgreSQL server version. Sample: {'major': 10, 'minor': 1}

Status ¶

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

Authors¶

Andrew Klychkov (@Andersson007)

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