A Doppler Service Token provides read-only secrets access to a specific config within a project.

It adheres to the principle of least privilege by ensuring an application only has access to a single config within a project for use in live environments.

❗️

Don't use a CLI or Personal Token in live environments as it provides write access with the same permissions as the account it was created by.

Requirements

• Doppler CLI
• Access to the config for a project you wish to provide access to

Dashboard Create Service Token

To generate a Service Token using the dashboard

1. Go to the Project and select a Config
2. Click the Access tab.
3. Click on Generate Service Token.
4. Copy the Service Token as it is only shown once.

CLI Create Service Token

You can also generate a Service Token using the Doppler CLI:

# Select the project and config
doppler setup

# Create the Service Token
doppler configs tokens create token-name --plain

You can also create the Service Token in a single command by providing the project and config as arguments:

doppler configs tokens create --project your-project --config your-config token-name --plain

CLI Configuration

There are three ways to configure the Doppler CLI to use the Service Token.

Option 1: Persisted Service Token

This is the best option for Virtual Machines as it restricts which directory secrets can be fetched from and no additional configuration is required once registered (e.g. will persist across machine restarts).

# Prevent configure command being leaked in bash history
export HISTIGNORE='doppler*'

# Scope to location of application directory
echo 'dp.st.prd.xxxx' | doppler configure set token --scope /usr/src/app

# Supply secrets to your application
cd /usr/src/app
doppler run -- your-app-command

If refreshing the Service Token, the doppler configure set token will need to be run again with the new Service Token value.

Option 2: The DOPPLER_TOKEN environment variable

This method best suits environments where a Doppler integration sync isn't possible (e.g Render) or when secrets access to multiple configs are required (e.g. CircleCI jobs for staging and production).

The other common use case is when running your application via the shell or shell script:

# Prevent command with Service Token being recorded in bash history
export HISTIGNORE='export DOPPLER_TOKEN*'

export DOPPLER_TOKEN='dp.st.prd.xxxx'
doppler run -- start-app-command

With Docker:

# Prevent command with Service Token being recorded in bash history
export HISTIGNORE='docker*'

docker container run -e DOPPLER_TOKEN='dp.st.prd.xxxx' your-app

Docker Compose:

# Prevent command with Service Token being recorded in bash history
export HISTIGNORE='export DOPPLER_TOKEN*'

export DOPPLER_TOKEN='dp.st.prd.xxxx'
docker-compose up

Or Kubernetes:

# Prevent command with Service Token being recorded in bash history
export HISTIGNORE='kubectl create secret*'

# Create Kubernetes secret containing the Service Token
kubectl create secret generic doppler-token --from-literal=DOPPLER_TOKEN="dp.st.prd.xxxx"

Inject SERVICE_TOKEN into your Kubernetes deployment:

apiVersion: apps/v1
kind: Deployment
...
    spec:
      containers:
        - name: your-app 
          envFrom:
            - secretRef:
                name: doppler-token

Option 3: The --token argument

It's also possible to use the --token option for doppler run:

# Prevent command with Service Token being recorded in bash history
export HISTIGNORE='doppler run*'

doppler run --token='dp.st.prd.xxxx' -- start-app-command

Ephemeral Service Token

An ephemeral Service Token can be created by setting an expiration time. Once the duration is reached, the token is automatically deleted.

Revoke Service Token

Revoking a Service Token is non-reversible and immediately prevents secrets access.

Revoking a Service Token is performed from the Access tab for the Config by clicking Revoke.

🚧

Revoking a token and the secrets fallback file

If a token is revoked, this will prevent access to the latest version of the secrets, but the CLI will continue to provide the last accessed version of the secrets (if it has previously been able to access the secrets) due to the encrypted fallback file being stored on disk.