Imports github.com/containerd/containerd/content github.com/containerd/containerd/errdefs github.com/containerd/containerd/images github.com/containerd/containerd/log github.com/opencontainers/image-spec/specs-go/v1 github.com/pkg/errors github.com/sirupsen/logrus Standard library imports context encoding/json fmt io math/rand strings time