digraph {
  compound=true;
  rankdir="LR";
  ordering = in;

  subgraph cluster_registry {
    label = "registry";

    subgraph cluster_tags {
      label = "/v2/.../tags/list";

      tag [label="tag", shape="rect"];
      tag2 [label="tag", shape="rect"];
    }

    subgraph cluster_manifests {
      label = "/v2/.../manifests/<ref>";

      subgraph cluster_manifest {
        label = "manifest";

        mconfig [label="config", shape="rect"];
        layers [label="layers", shape="rect"];
      }

      subgraph cluster_manifest2 {
        label = "manifest";

        mconfig2 [label="config", shape="rect"];
        layers2 [label="layers", shape="rect"];
      }

      subgraph cluster_index {
        label = "index";

        imanifest [label="manifests", shape="rect"];
      }

      imanifest -> mconfig [lhead=cluster_manifest];
      imanifest -> mconfig2 [lhead=cluster_manifest2];
    }

    subgraph cluster_blobs {
      label = "/v2/.../blobs/<sha256>";

      bconfig [label="config", shape="hexagon"];
      bconfig2 [label="config", shape="hexagon"];

      l1 [label="layer", shape="folder"];
      l2 [label="layer", shape="folder"];
      l3 [label="layer", shape="folder"];
    }

    layers -> l1;
    layers -> l2;

    layers2 -> l2;
    layers2 -> l3;

    mconfig -> bconfig;
    mconfig2 -> bconfig2;

    tag -> mconfig [style="dashed", lhead=cluster_manifest];
    tag2 -> imanifest [style="dashed", lhead=cluster_index];
  }
}