127 lines
3.8 KiB
Markdown
127 lines
3.8 KiB
Markdown
---
|
|
stage: Verify
|
|
group: Runner
|
|
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
|
|
type: reference
|
|
---
|
|
|
|
# Using PostgreSQL
|
|
|
|
As many applications depend on PostgreSQL as their database, you
|
|
eventually need it in order for your tests to run. Below you are guided how to
|
|
do this with the Docker and Shell executors of GitLab Runner.
|
|
|
|
## Use PostgreSQL with the Docker executor
|
|
|
|
If you're using [GitLab Runner](../runners/README.md) with the Docker executor,
|
|
you basically have everything set up already.
|
|
|
|
First, in your `.gitlab-ci.yml` add:
|
|
|
|
```yaml
|
|
services:
|
|
- postgres:12.2-alpine
|
|
|
|
variables:
|
|
POSTGRES_DB: nice_marmot
|
|
POSTGRES_USER: runner
|
|
POSTGRES_PASSWORD: ""
|
|
POSTGRES_HOST_AUTH_METHOD: trust
|
|
```
|
|
|
|
To set values for the `POSTGRES_DB`, `POSTGRES_USER`,
|
|
`POSTGRES_PASSWORD` and `POSTGRES_HOST_AUTH_METHOD`,
|
|
[assign them to a CI/CD variable in the user interface](../variables/README.md#custom-cicd-variables),
|
|
then assign that variable to the corresponding variable in your
|
|
`.gitlab-ci.yml` file.
|
|
|
|
And then configure your application to use the database, for example:
|
|
|
|
```yaml
|
|
Host: postgres
|
|
User: runner
|
|
Password: ''
|
|
Database: nice_marmot
|
|
```
|
|
|
|
If you're wondering why we used `postgres` for the `Host`, read more at
|
|
[How services are linked to the job](../services/index.md#how-services-are-linked-to-the-job).
|
|
|
|
You can also use any other Docker image available on [Docker Hub](https://hub.docker.com/_/postgres).
|
|
For example, to use PostgreSQL 9.3, the service becomes `postgres:9.3`.
|
|
|
|
The `postgres` image can accept some environment variables. For more details,
|
|
see the documentation on [Docker Hub](https://hub.docker.com/_/postgres).
|
|
|
|
## Use PostgreSQL with the Shell executor
|
|
|
|
You can also use PostgreSQL on manually configured servers that are using
|
|
GitLab Runner with the Shell executor.
|
|
|
|
First install the PostgreSQL server:
|
|
|
|
```shell
|
|
sudo apt-get install -y postgresql postgresql-client libpq-dev
|
|
```
|
|
|
|
The next step is to create a user, so sign in to PostgreSQL:
|
|
|
|
```shell
|
|
sudo -u postgres psql -d template1
|
|
```
|
|
|
|
Then create a user (in our case `runner`) which is used by your
|
|
application. Change `$password` in the command below to a real strong password.
|
|
|
|
NOTE:
|
|
Be sure to not enter `template1=#` in the following commands, as that's part of
|
|
the PostgreSQL prompt.
|
|
|
|
```shell
|
|
template1=# CREATE USER runner WITH PASSWORD '$password' CREATEDB;
|
|
```
|
|
|
|
The created user has the privilege to create databases (`CREATEDB`). The
|
|
following steps describe how to create a database explicitly for that user, but
|
|
having that privilege can be useful if in your testing framework you have tools
|
|
that drop and create databases.
|
|
|
|
Create the database and grant all privileges to it for the user `runner`:
|
|
|
|
```shell
|
|
template1=# CREATE DATABASE nice_marmot OWNER runner;
|
|
```
|
|
|
|
If all went well, you can now quit the database session:
|
|
|
|
```shell
|
|
template1=# \q
|
|
```
|
|
|
|
Now, try to connect to the newly created database with the user `runner` to
|
|
check that everything is in place.
|
|
|
|
```shell
|
|
psql -U runner -h localhost -d nice_marmot -W
|
|
```
|
|
|
|
This command explicitly directs `psql` to connect to localhost to use the md5
|
|
authentication. If you omit this step, you are denied access.
|
|
|
|
Finally, configure your application to use the database, for example:
|
|
|
|
```yaml
|
|
Host: localhost
|
|
User: runner
|
|
Password: $password
|
|
Database: nice_marmot
|
|
```
|
|
|
|
## Example project
|
|
|
|
We have set up an [Example PostgreSQL Project](https://gitlab.com/gitlab-examples/postgres) for your
|
|
convenience that runs on [GitLab.com](https://gitlab.com) using our publicly
|
|
available [shared runners](../runners/README.md).
|
|
|
|
Want to hack on it? Fork it, commit, and push your changes. Within a few
|
|
moments the changes are picked by a public runner and the job begins.
|