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---
stage: Enablement
group: Database
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
---
# Standalone PostgreSQL using Omnibus GitLab **(CORE ONLY)**
If you wish to have your database service hosted separately from your GitLab
application servers, you can do this using the PostgreSQL binaries packaged
together with Omnibus GitLab. This is recommended as part of our
[reference architecture for up to 2,000 users](../reference_architectures/2k_users.md).
## Setting it up
1. SSH in to the PostgreSQL server.
1. [Download and install](https://about.gitlab.com/install/) the Omnibus GitLab
package you want using *steps 1 and 2* from the GitLab downloads page.
- Do not complete any other steps on the download page.
1. Generate a password hash for PostgreSQL. This assumes you will use the default
username of `gitlab` (recommended). The command will request a password
and confirmation. Use the value that is output by this command in the next
step as the value of `POSTGRESQL_PASSWORD_HASH`.
```shell
sudo gitlab-ctl pg-password-md5 gitlab
```
1. Edit `/etc/gitlab/gitlab.rb` and add the contents below, updating placeholder
values appropriately.
- `POSTGRESQL_PASSWORD_HASH` - The value output from the previous step
- `APPLICATION_SERVER_IP_BLOCKS` - A space delimited list of IP subnets or IP
addresses of the GitLab application servers that will connect to the
database. Example: `%w(123.123.123.123/32 123.123.123.234/32)`
```ruby
# Disable all components except PostgreSQL
roles ['postgres_role']
repmgr['enable'] = false
consul['enable'] = false
prometheus['enable'] = false
alertmanager['enable'] = false
pgbouncer_exporter['enable'] = false
redis_exporter['enable'] = false
gitlab_exporter['enable'] = false
postgresql['listen_address'] = '0.0.0.0'
postgresql['port'] = 5432
# Replace POSTGRESQL_PASSWORD_HASH with a generated md5 value
postgresql['sql_user_password'] = 'POSTGRESQL_PASSWORD_HASH'
# Replace XXX.XXX.XXX.XXX/YY with Network Address
# ????
postgresql['trust_auth_cidr_addresses'] = %w(APPLICATION_SERVER_IP_BLOCKS)
# Disable automatic database migrations
gitlab_rails['auto_migrate'] = false
```
NOTE:
The role `postgres_role` was introduced with GitLab 10.3
1. [Reconfigure GitLab](../restart_gitlab.md#omnibus-gitlab-reconfigure) for the changes to take effect.
1. Note the PostgreSQL node's IP address or hostname, port, and
plain text password. These will be necessary when configuring the GitLab
application servers later.
1. [Enable monitoring](replication_and_failover.md#enable-monitoring)
Advanced configuration options are supported and can be added if
needed.
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