Uses a Github Action (`.github/workflows/publish-container.yml`) to create a
docker container image (from `Dockerfile`) that represents an extremely minimal
python installation with a virtualenv holding all requirements necessary to
execute `nomadnet`.
New docker images are created on pushes to `master` or pushes to tags
matching `*.*.*` (ie. version tags) and are retrievable with those tags.
Examples:
```sh
$ docker pull ghcr.io/markqvist/nomadnet:master
# Print docker labels, to demonstrate the image has been retrieved
$ docker inspect -f '{{json .Config.Labels}}' ghcr.io/markqvist/nomadnet:master | jq
{
"org.opencontainers.image.created": "2022-04-27T06:01:55.894Z",
"org.opencontainers.image.description": "Communicate Freely",
"org.opencontainers.image.licenses": "GPL-3.0",
"org.opencontainers.image.revision": "59cffc4a9de0f276d2cc87537ff1316aed5f16dd",
"org.opencontainers.image.source": "https://github.com/markqvist/NomadNet",
"org.opencontainers.image.title": "NomadNet",
"org.opencontainers.image.url": "https://github.com/markqvist/NomadNet",
"org.opencontainers.image.version": "master"
}
# Run nomadnet interactively without installing it (with default config)
$ docker run -it ghcr.io/markqvist/nomadnet:master
# Run nomadnet as a daemon, using config stored on the host machine in specific directories
$ docker run -d -v /local/path/nomadnetconfig/:/root/.nomadnetwork/ -v /local/path/reticulumconfig/:/root/.reticulum/:rw ghcr.io/markqvist/nomadnet:master
```
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