Docker Hub

Configure Valohai to pull private images from Docker Hub.

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

Create an access token

1. Log in to hub.docker.com

2. Click your username (top-right) → Account Settings

3. Select Security → New Access Token

4. Add a description (e.g., "Valohai access token")

5. Set permissions (Read-only is sufficient for pulling images)

6. Click Generate

7. Copy the token immediately—Docker Hub won't show it again

Read more: Docker Hub access tokens

Add credentials to Valohai

1. Navigate to Hi, <name> (top-right menu) → Manage <organization>

2. Go to Registries under organization controls

3. Click Add a new entry

4. Configure:

   • Match pattern: docker.io/<username>/*

     • Example: docker.io/mycompany/*

     • Matches all repositories under your username/organization

   • Registry type: Docker (username and password authentication)

   • Username: Your Docker Hub username

   • Password: The access token you created (not your account password)

5. Save

Use the private image

Reference your Docker Hub image in valohai.yaml:

- step:
    name: train
    image: docker.io/mycompany/ml-training:v2.0
    command:
      - python train.py

You can also use the short form (Valohai expands it automatically):

- step:
    name: train
    image: mycompany/ml-training:v2.0
    command:
      - python train.py

Valohai handles authentication automatically.