## pg-setup

pg-setup — set up a new PostgreSQL database cluster and manage the corresponding service

## Synopsis

`pg-setup` `initdb` [`initdb_options`]

`pg-setup` `find-free-port`

`pg-setup` `set-server-port `port``

`pg-setup` `set `parameter` `value``

`pg-setup` `service `service_option``

## Description

pg-setup is a shell script provided in the PostgreSQL distribution to automate database cluster setup on Linux systems. This script is provided as part of the `postgrespro-1c-12-server` package. Once PostgreSQL is installed, you can find pg-setup in the ``install-dir`/bin` directory, where `install-dir` is `/opt/pgpro/1c-12`.

pg-setup must be run as root, but performs database administration operations as user `postgres`. You can run this script with different options to:

- initialize the database cluster

- check for available ports and change the port used by PostgreSQL server

- change server configuration parameters

- enable/disable automatic startup of PostgreSQL service

- start, stop, or restart PostgreSQL service

## Options

pg-setup accepts the following command-line arguments:

`initdb [`initdb_options`]`

  Initialize the database cluster on behalf of the `postgres` user.

  By default, the database cluster is initialized in the `/var/lib/pgpro/1c-12/data` directory, with checksums enabled, `auth-local` parameter set to `peer`, and `auth-host` parameter set to `md5`. Localization settings are inherited from the `LANG` environment variable for the current session. All the `LC_*` environment variables are ignored. Optionally, you can provide initdb options to customize the installation.

  ### Important

  With pg-setup, you cannot initialize the database cluster with checksums disabled. If this is not what you expect, do not use pg-setup for cluster initialization and run initdb directly instead.

  If the default database is created using pg-setup, the path to its data directory is stored in the `/etc/default/postgrespro-1C-12` file, so all the subsequent pg-setup commands, as well as any commands that manage PostgreSQL service, affect this database only. You cannot manage several databases using pg-setup.

`find-free-port`

  Search for a free port on your system. This option is useful if you are going to install more than one server instance, or the default 5432 port is used by another program.

`set-server-port` `port`

  Specify the port number on which the server will listen for connections. Use this option to avoid conflicts if you are installing more than one server instance on the same system.

  Default: 5432

`set` `name` `value`

  Set the specified configuration parameter to the provided `value` in the `postgresql.conf` file. If this parameter has been already defined by the `ALTER SYSTEM` command, its previous value is removed from the `postgresql.auto.conf` file.

`service `service_option``

  Manage PostgreSQL service using one of the following options:

  - `enable` — enable automatic service startup upon system restart.

  - `disable` — disable automatic service startup upon system restart.

  - `start` — start the service.

  - `stop` — stop the service.

  - `condrestart` — restart the service if it is running when pg-setup is invoked.

  - `status` — return the PostgreSQL service status.

## Notes

If you are installing PostgreSQL from the `postgrespro-1c-12` package, pg-setup is invoked automatically with the default settings. As a result, the database cluster is initialized and the default database is created in the `/var/lib/pgpro/1c-12/data` directory, PostgreSQL service autostart is enabled, and the service is started.

If you are installing PostgreSQL server directly from the `postgrespro-1c-12-server` package, you can run this script manually to initialize the database cluster or manage the PostgreSQL service.

For details on binary installation specifics on Linux, see Section 18.1.