Kenyon Ralph

You'll probably need to change the acceptance tests to use Vagrant instead of the default of Docker for systemd to work correctly.

🤔 those changes were made in 3d4a9210292eab68945429901e6415466ce47c53 (#107).

You have deleted every file except for the one you want to add.

Let me know if you want this to be merged.

Test failures are because this is not idempotent: `Notice: /Stage[main]/Epel/Epel::Rpm_gpg_key[EPEL-10]/Exec[import-EPEL-10]/returns: executed successfully`

Labeled backwards-incompatible due to the stdlib minimum version increase.

Only thing I'm not sure about is whether the changelog will have sufficient explanation.

I'd guess that the Docker API doesn't provide the `usage` key anymore. You could debug this by printing the value of `stats` inside `print_containers_memory`.

Although, I see in the API docs that there should be a `usage` key, so 🤷 https://docs.docker.com/engine/api/v1.46/#tag/Container/operation/ContainerStats

You can see what the Docker API is providing like this: ```bash curl --unix-socket /var/run/docker.sock http://localhost/v1.46/containers//stats | jq --color-output . ```