Truss uses containerized environments to ensure consistent model execution across deployments. When deploying a custom base image or a custom server from a private registry, you must grant Baseten access to download that image.

​
AWS Elastic Cloud Registry (ECR)

AWS supports using either service accounts, or access tokens for short lived access for container registry authentication.

​
AWS IAM Service accounts

To use an IAM service account for long-lived access, you can use the AWS_IAM authentication method in Truss.
  1. Get an AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY from the AWS dashboard
  2. Add these as secrets in Baseten. These should be named aws_access_key_id and aws_secret_access_key respectively.
  3. Choose the AWS_IAM authentication method when setting up your Truss. The config.yaml file should look something like this: 
...
  base_image:
    image: <aws account id>.dkr.ecr.<region>.amazonaws.com/path/to/image
    docker_auth:
      auth_method: AWS_IAM
      registry: <aws account id>.dkr.ecr.<region>.amazonaws.com
  secrets:
    aws_access_key_id: null
    aws_secret_access_key: null
...
Note here that you need to specify the registry and image separately. If you’d like to use different secret names besides the default, you can configure these using the aws_access_key_id_secret_name and aws_secret_access_key_secret_name options under docker_auth: 
...
base_image:
  ...
  docker_auth:
    auth_method: AWS_IAM
    registry: <aws account id>.dkr.ecr.<region>.amazonaws.com
    aws_access_key_id_secret_name: custom_aws_access_key_secret
    aws_secret_access_key_secret_name: custom_aws_secret_key_secret
secrets:
  custom_aws_access_key_secret: null
  custom_aws_secret_key_secret: null

​
Access Token

  1. Get the a Base64-encoded secret:
PASSWORD=`aws ecr get-login-password --region {us-east-1}`
echo -n "AWS:$PASSWORD" | base64
  1. Add a new secret to Baseten named DOCKER_REGISTRY_{aws account id}.dkr.ecr.{us-east-1}.amazonaws.com with the Base64-encoded secret as the value.
  2. Add the secret name to the secrets section of the config.yaml to allow this model to access the secret when it is pushed.
config.yaml
secrets:
  DOCKER_REGISTRY_{aws account id}.dkr.ecr.{us-east-1}.amazonaws.com: null

​
Google Cloud Artifact Registry

GCP supports using either access tokens for short lived access or service accounts for container registry authentication.

​
Service Account

  1. Get your service account key as a JSON key blob.
  2. Add a new secret to Baseten named gcp-service-account (or similar) with the JSON key blob as the value.
  3. Add the secret name that you used to the secrets section of the config.yaml to allow this model to access the secret when it is pushed.
config.yaml
secrets:
  gcp-service-account: null
  1. Configure the docker_auth section of your base_image: to ensure that the service account authentication method will be used.
base_image:
  ...
  docker_auth:
    auth_method: GCP_SERVICE_ACCOUNT_JSON
    secret_name: gcp-service-account
    registry: {us-west2}-docker.pkg.dev
Note that here, secret_name should match the name of the secret that is contains the JSON key blob.

​
Access Token

  1. Get your access token
  2. Add a new secret to Baseten named DOCKER_REGISTRY_{us-west2}-docker.pkg.dev with the Base64-encoded secret as the value.
  3. Add the secret name to the secrets section of the config.yaml to allow this model to access the secret when it is pushed.
config.yaml
secrets:
  DOCKER_REGISTRY_{us-west2}-docker.pkg.dev: null

​
Docker Hub

  1. Get the a Base64-encoded secret:
echo -n 'username:password' | base64
  1. Add a new secret to Baseten named DOCKER_REGISTRY_https://index.docker.io/v1/ with the Base64-encoded secret as the value.
  2. Add the secret name to the secrets section of the config.yaml to allow this model to access the secret when it is pushed. 
Name: DOCKER_REGISTRY_https://index.docker.io/v1/
Token: <Base64-encoded secret>
Then, this to config.yaml:
config.yaml
secrets:
  DOCKER_REGISTRY_https://index.docker.io/v1/: null