PostgreSQL Database Output Module (ompgsql)

Module Name:

ompgsql

Author:

Rainer Gerhards and Dan Molik

Available:

8.32+

Purpose

This module provides native support for logging to PostgreSQL databases. It’s an alternative (with potentially superior performance) to the more generic omlibdbi module.

Configuration Parameters

Note

Parameter names are case-insensitive.

Action Parameters

Conninfo

type

default

mandatory

obsolete legacy directive

word

none

no

none

The URI or set of key-value pairs that describe how to connect to the PostgreSQL server. This takes precedence over server, port, db, and pass parameters. Required if server and db are not specified.

The format corresponds to standard PostgreSQL connection string format.

Server

type

default

mandatory

obsolete legacy directive

word

none

no

none

The hostname or address of the PostgreSQL server. Required if conninfo is not specified.

Port/Serverport

type

default

mandatory

obsolete legacy directive

integer

5432

no

none

The IP port of the PostgreSQL server.

db

type

default

mandatory

obsolete legacy directive

word

none

no

none

The multi-tenant database name to INSERT rows into. Required if conninfo is not specified.

User/UID

type

default

mandatory

obsolete legacy directive

word

postgres

no

none

The username to connect to the PostgreSQL server with.

Pass/PWD

type

default

mandatory

obsolete legacy directive

word

postgres

no

none

The password to connect to the PostgreSQL server with.

Template

type

default

mandatory

obsolete legacy directive

word

none

no

none

The template name to use to INSERT rows into the database with. Valid SQL syntax is required, as the module does not perform any insertion statement checking.

Examples

Example 1

A Basic Example using the internal PostgreSQL template.

# load module
module(load="ompgsql")

action(type="ompgsql" server="localhost"
       user="rsyslog" pass="test1234"
       db="syslog")

Example 2

A Basic Example using the internal PostgreSQL template and connection using URI.

# load module
module(load="ompgsql")

action(type="ompgsql"
       conninfo="postgresql://rsyslog:test1234@localhost/syslog")

Example 3

A Basic Example using the internal PostgreSQL template and connection with TLS using URI.

# load module
module(load="ompgsql")

action(type="ompgsql"
       conninfo="postgresql://rsyslog:test1234@postgres.example.com/syslog?sslmode=verify-full&sslrootcert=/path/to/cert")

Example 4

A Templated example.

template(name="sql-syslog" type="list" option.stdsql="on") {
  constant(value="INSERT INTO SystemEvents (message, timereported) values ('")
  property(name="msg")
  constant(value="','")
  property(name="timereported" dateformat="pgsql" date.inUTC="on")
  constant(value="')")
}

# load module
module(load="ompgsql")

action(type="ompgsql" server="localhost"
       user="rsyslog" pass="test1234"
       db="syslog"
       template="sql-syslog" )

Example 5

An action queue and templated example.

template(name="sql-syslog" type="list" option.stdsql="on") {
  constant(value="INSERT INTO SystemEvents (message, timereported) values ('")
  property(name="msg")
  constant(value="','")
  property(name="timereported" dateformat="pgsql" date.inUTC="on")
  constant(value="')")
}

# load module
module(load="ompgsql")

action(type="ompgsql" server="localhost"
       user="rsyslog" pass="test1234"
       db="syslog"
       template="sql-syslog"
       queue.size="10000" queue.type="linkedList"
       queue.workerthreads="5"
       queue.workerthreadMinimumMessages="500"
       queue.timeoutWorkerthreadShutdown="1000"
       queue.timeoutEnqueue="10000")

Building

To compile Rsyslog with PostgreSQL support you will need to:

  • install libpq and libpq-dev packages, check your package manager for the correct name.

  • set –enable-pgsql switch on configure.

See also

Help with configuring/using Rsyslog:

See also

Contributing to Rsyslog:

Copyright 2008-2023 Rainer Gerhards (Großrinderfeld), and Others.