Provide start on containerizing these scripts

[adamhgriffith-uofu]

Create a starting position with a CheckMK agent base image.

[adamhgriffith-uofu]

@gcarcassi I grabbed what I did for https://github.com/slateci/slate-server-scripts and added a CheckMK agent.

The README.md on the associated feature branch (see on right) describes how I was originally setting up a local development environment.

The "release" flavor of the image would be created and pushed to OSG Harbor using a command like:

$ docker build --file ./resources/docker/Dockerfile --target release-stage --tag hub.opensciencegrid.org/slate/slate-checkmk-scripts:github-26 .
...
$ docker push hub.opensciencegrid.org/slate/slate-checkmk-scripts:github-26

And then like you said a Kubernetes a Deployment/Job/CronJob could load the container:

...
spec:
  containers:
    - name: worker
      image: "{{ $.Values.harbor.hostname }}/{{ $.Values.harbor.projectID }}/slate-checkmk-scripts:{{ $.Values.dockerImageTag }}"
     imagePullPolicy: IfNotPresent
     command:
       - /slate/scripts/{{ .filename }}
    env:
      - name: SLATE_API_CONF
      ...
...