Skopeo

Definition

Skopeo is a command-line utility that facilitates the inspection, copying, signing, and verification of container images and image repositories. Unlike other tools, Skopeo does not require a local container runtime or daemon, making it lightweight and ideal for integrating into CI/CD pipelines. It supports various image formats and registries, enabling users to manage container images efficiently across different environments.

Secure Settings Example

skopeo copy --src-creds=username:password --dest-creds=username:password \
  docker://source-registry.example.com/repository/image:tag \
  docker://destination-registry.example.com/repository/image:tag

In this example, Skopeo securely copies an image from a source to a destination registry using credentials for authentication. Ensure credentials are stored securely and not hard-coded in scripts.

Insecure Settings Example

skopeo copy docker://source-registry.example.com/repository/image:tag \
  docker://destination-registry.example.com/repository/image:tag

This example lacks authentication credentials, which may lead to unauthorized access or image tampering if the registries require authentication. Always use secure methods to pass credentials.