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---
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
---
# Use GitLab as a microservice
Many applications need to access JSON APIs, so application tests might need access
to APIs too. The following example shows how to use GitLab as a microservice to give
tests access to the GitLab API.
1. Configure a [runner](../runners/index.md) with the Docker or Kubernetes executor.
1. In your `.gitlab-ci.yml` add:
```yaml
services:
- name: gitlab/gitlab-ce:latest
alias: gitlab
variables:
GITLAB_HTTPS: "false" # ensure that plain http works
GITLAB_ROOT_PASSWORD: "password" # to access the api with user root:password
```
1. To set values for the `GITLAB_HTTPS` and `GITLAB_ROOT_PASSWORD`,
[assign them to a variable in the user interface](../variables/index.md#add-a-cicd-variable-to-a-project).
Then assign that variable to the corresponding variable in your
`.gitlab-ci.yml` file.
Then, commands in `script:` sections in your `.gitlab-ci.yml` file can access the API at `http://gitlab/api/v4`.
For more information about why `gitlab` is used for the `Host`, see
[How services are linked to the job](../docker/using_docker_images.md#extended-docker-configuration-options).
You can also use any other Docker image available on [Docker Hub](https://hub.docker.com/u/gitlab).
The `gitlab` image can accept environment variables. For more details,
see the [Omnibus documentation](../../install/index.md).
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