Environment variables used by Docker Scout
Table of contents
The following environment variables are available to configure the Docker Scout
CLI commands, and the corresponding docker/scout-cli container image:
| Name | Format | Description |
|---|---|---|
| DOCKER_SCOUT_CACHE_FORMAT | String | Format of the local image cache; can be oci or tar (default: oci) |
| DOCKER_SCOUT_CACHE_DIR | String | Directory where the local SBOM cache is stored (default: $HOME/.docker/scout) |
| DOCKER_SCOUT_NO_CACHE | Boolean | When set to true, disables the use of local SBOM cache |
| DOCKER_SCOUT_OFFLINE | Boolean | Use offline mode when indexing SBOM |
| DOCKER_SCOUT_REGISTRY_TOKEN | String | Token for authenticating to a registry when pulling images |
| DOCKER_SCOUT_REGISTRY_USER | String | Username for authenticating to a registry when pulling images |
| DOCKER_SCOUT_REGISTRY_PASSWORD | String | Password or personal access token for authenticating to a registry when pulling images |
| DOCKER_SCOUT_HUB_USER | String | Docker Hub username for authenticating to the Docker Scout backend |
| DOCKER_SCOUT_HUB_PASSWORD | String | Docker Hub password or personal access token for authenticating to the Docker Scout backend |
| DOCKER_SCOUT_NEW_VERSION_WARN | Boolean | Warn about new versions of the Docker Scout CLI |
| DOCKER_SCOUT_EXPERIMENTAL_WARN | Boolean | Warn about experimental features |
| DOCKER_SCOUT_EXPERIMENTAL_POLICY_OUTPUT | Boolean | Disable experimental output for policy evaluation |
Offline mode
Under normal operation, Docker Scout cross-references external systems, such as npm, NuGet, or proxy.golang.org, to retrieve additional information about packages found in your image.
When DOCKER_SCOUT_OFFLINE is set to true, Docker Scout image analysis runs
in offline mode. Offline mode means Docker Scout doesn't make outbound requests
to external systems.
To use offline mode:
$ export DOCKER_SCOUT_OFFLINE=true