Advanced Snyk Container CLI usage

Scanning archives

In addition to testing images from a local Docker daemon or remote registry, Snyk can directly scan or monitor a Docker or OCI archive by running, snyk container test docker-archive:<filename>.tar or snyk container test oci-archive:<filename>.tar.

Examples:

snyk container test docker-archive:archive.tar
snyk container test oci-archive:archive.tar

Testing multi-platform images

Some repositories represent multi-manifests, pointing to several different images depending on the operating system and architecture required. The Snyk CLI container test command can be used to explicitly test an image for a specific platform.

Example:

snyk container test --platform=linux/arm64 debian

The --platform option should contain one of the following:

• linux/amd64

• linux/arm64

• linux/riscv64

• linux/ppc64le

• linux/s390x

• linux/386

• linux/arm/v7

• linux/arm/v

Authenticating to a remote container registry

When Docker is installed, the Snyk CLI container commands use any pre-configured registry authentication. If you are not using Docker, you can pass the credentials on the command line:

• Either use the following environment variables: SNYK_REGISTRY_USERNAME and SNYK_REGISTRY_PASSWORD

• Or pass the username and password as follows:

snyk container test <repository>:<tag> --username= --password=

Note that the options take precedence over the environment variables when both are passed.

Additional commonly used CLI options

CLI options that are used frequently include the following:

• --json (Useful for integrating with other tools)

• --sarif (See OASIS Static Analysis Results Interchange Format (SARIF); useful for integrating with other tools; available with container test only)

• --exclude-base-image-vulns (Available with container test only)

• --severity-threshold (Available with container test only)

• --exclude-app-vulns

• --nested-jars-depth

• --fail-on (Available with container test only)

For details and more options, see the Snyk CLI container help or display the help by running:

snyk container --help

More information about Snyk Container CLI

• Snyk CLI for container security

• Understanding Snyk Container CLI results