gitlab-org--gitlab-foss/doc/administration/external_database.md

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# Configure GitLab using an external PostgreSQL service
If you're hosting GitLab on a cloud provider, you can optionally use a
managed service for PostgreSQL. For example, AWS offers a managed Relational
Database Service (RDS) that runs PostgreSQL.
Alternatively, you may opt to manage your own PostgreSQL instance or cluster
separate from the Omnibus GitLab package.
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If you use a cloud-managed service, or provide your own PostgreSQL instance:
1. Set up PostgreSQL according to the
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[database requirements document](../install/requirements.md#database).
1. Set up a `gitlab` username with a password of your choice. The `gitlab` user
needs privileges to create the `gitlabhq_production` database.
1. Configure the GitLab application servers with the appropriate connection details
for your external PostgreSQL service in your `/etc/gitlab/gitlab.rb` file:
```ruby
# Disable the bundled Omnibus provided PostgreSQL
postgresql['enable'] = false
# PostgreSQL connection details
gitlab_rails['db_adapter'] = 'postgresql'
gitlab_rails['db_encoding'] = 'unicode'
gitlab_rails['db_host'] = '10.1.0.5' # IP/hostname of database server
gitlab_rails['db_password'] = 'DB password'
```
For more information on GitLab HA setups, refer to [configuring GitLab for HA](high_availability/gitlab.md).
1. Reconfigure for the changes to take effect:
```shell
sudo gitlab-ctl reconfigure
```