GetCopyOptions constructs a new containers/image/copy.Options{} struct from the given parameters.

GetSystemContext Constructs a new containers/image/types.SystemContext{} struct from the given signaturePolicy path.

IsFalse determines whether the given string equals "false".

IsTrue determines whether the given string equals "true".

IsValidBool determines whether the given string equals "true" or "false".

DockerRegistryOptions encapsulates settings that affect how we connect or authenticate to a remote registry.

SigningOptions encapsulates settings that control whether or not we strip or add signatures to images when writing them.