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nabbisen
nabbisen

Posted on • Updated on • Originally published at obsd.solutions

PostgreSQL 14.2 on OpenBSD 7.1: Install

Summary

In OpenBSD 7.1 release, PostgreSQL was upgraded to 14.2.
This post shows how to install it on the latest OpenBSD.

Environment

  • OS: OpenBSD 7.1
  • DB: PostgreSQL 14.2

Tutorial

The overall

Each step is described as "One-by-one steps" later.

$ doas pkg_add postgresql-server

$ doas su - _postgresql
$ mkdir /var/postgresql/data

$ # --locale below is optional
$ initdb -D /var/postgresql/data -U postgres -A scram-sha-256 -E UTF-8 -W --locale=xx_XX.UTF-8
$ # will be asked password of the superuser, "postgres" above

$ exit

$ doas rcctl enable postgresql
$ doas rcctl start postgresql
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One-by-one steps

Install

Get the package from ports system:

$ doas pkg_add postgresql-server
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Init database

In order to avoid permissions error, switch user to _postgresql which was created above:

$ doas su - _postgresql
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Create the directory for init_db:

$ mkdir /var/postgresql/data
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Run initdb to create a database cluster:

$ initdb -D /var/postgresql/data -U postgres -A scram-sha-256 -E UTF-8 -W --locale=xx_XX.UTF-8
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Well, -U postgres (= --user=...) above is the superuser's name. The password will be asked when -W (= --pwprompt) is set. -W and -A scram-sha-256 (= --auth=...) are for the sake of security. --locale=... is optional for one but en_US.UTF-8.

Also, the documentation (/usr/local/share/doc/pkg-readmes/postgresql-server) says:

It is strongly advised that you do not work with the postgres dba account
other than creating more users and/or databases or for administrative tasks.
Use the PostgreSQL permission system to make sure that a database is only
accessed by programs/users that have the right to do so.

As a result, the whole output was:

The files belonging to this database system will be owned by user "_postgresql".
This user must also own the server process.

The database cluster will be initialized with locale "ja_JP.UTF-8".
initdb: could not find suitable text search configuration for locale "ja_JP.UTF-8"
The default text search configuration will be set to "simple".

Data page checksums are disabled.

Enter new superuser password: 
Enter it again: 

fixing permissions on existing directory /var/postgresql/data ... ok
creating subdirectories ... ok
selecting dynamic shared memory implementation ... posix
selecting default max_connections ... 20
selecting default shared_buffers ... 128MB
selecting default time zone ... Asia/Tokyo
creating configuration files ... ok
running bootstrap script ... ok
performing post-bootstrap initialization ... ok
syncing data to disk ... ok

Success. You can now start the database server using:

    pg_ctl -D /var/postgresql/data -l logfile start

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Yay, successful. Let's exit from _postgersql user:

$ exit
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Start PostgreSQL server

Activate the daemon and start it:

$ doas rcctl enable postgresql
$ doas rcctl start postgresql
postgresql(ok)
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Conclusion

The postgresql server daemon is now activated and started. It works as RDBMS and listens to requests from clients.

The configuration files such as postgresql.conf and pg_hba.conf were generated automatically, and also psql was installed.

Configuration files

They are useful to configure the server.

psql

It is used as a terminal-based front-end to PostgreSQL. By using the password asked above, it's able to connect to the server:

$ psql -U postgres
Password for user postgres:
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You will be welcomed :)

psql (14.2)
Type "help" for help.

postgres=#
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Reference

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