# GCP Artifact Registry

Configure Valohai to pull private images from Google Cloud Artifact Registry.

> Private registries are restricted to organization projects. Personal projects don't have access to private repositories.

## Create a service account

1. Navigate to your Google Cloud project that hosts the Artifact Registry
2. Go to **IAM & Admin** → **Service Accounts**
3. Click **Create Service Account**
4. Add roles:
   * **Service Account Token Creator** (allows self-token creation)
   * **Artifact Registry Reader** (allows pulling images)
5. Create and download the **JSON key file**

Read more: [GCP Artifact Registry access control](https://cloud.google.com/artifact-registry/docs/access-control#permissions)

## Add credentials to Valohai

1. Navigate to `Hi, <n>` (top-right menu) → `Manage <organization>`
2. Go to **Registries** under organization controls
3. Click **Add a new entry**
4. Configure:
   * **Match pattern**: `<region>-docker.pkg.dev/<project-id>/*`
     * Example: `us-central1-docker.pkg.dev/my-project/*`
     * Or narrow it: `us-central1-docker.pkg.dev/my-project/ml-images/*`
   * **Registry type**: GCP Artifact Registry
   * **Service Account JSON**: Paste the entire contents of your JSON key file
5. Save

## Use the private image

Reference your Artifact Registry image in `valohai.yaml`:

```yaml
- step:
    name: train
    image: us-central1-docker.pkg.dev/my-project/ml-images/training:v1.0
    command:
      - python train.py
```

Valohai handles authentication automatically.


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