Results 3 issues of lhalbert

The Docker Layers and Metadata Badges report HTTP 400 errors in production on [badgen.net](https://badgen.net), but not in the development environment. To test the dev environment, simply clone the [https://github.com/badgen/badgen.net.git](https://github.com/badgen/badgen.net.git) repo,...

Per the [https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379446.html](https://mail.openvswitch.org/pipermail/ovs-dev/2021-January/379446.html) patch, OVN soon will support multiple l3dgw ports per logical router. Given this, it would be extremely useful to support multiple external gateways. The end goal of...

This PR piggy backs on PR #116 from @jmatsushita. It includes all of the fixes from that PR and updates the Docker Engine, Containerd, Docker Machine, and pi4 kernel.