GH-49: Implementation proposal for CI and CD

[dduportal]

This Pull Request is a proposal implementation for #49 .

• It features the use of Travis-CI to build and test the docker-asciidoctor container
• GNU Make is used to provide a workflow
• Currently, the Deploy phase is proposed using my DockerHub account (https://hub.docker.com/r/dduportal/docker-asciidoctor/), to have a real life working example, with pushed images

IMPORTANT if this implementation of the deploy phase is fine, can someone with the right to the asciidoctor image on the DockerHub set up configuration or delegate to me the rights? The variable containing the token in https://travis-ci.org/asciidoctor/docker-asciidoctor/settings need to be adapted (as well as the curl destination in the deploy goal in this PR).

As side-kick setting, the master branch of this repository had been configured to be protected (need CI check).

Ping @mojavelinux @mgreau , I would like your review and advise on this?

[dduportal]

Ping @mojavelinux @jirutka @mgreau for this (happy) new year 2018, I propose we enable fully the Travis CI on this repository to ensure feedback to contributors :)

[mgreau]

Thanks for working on it @dduportal
I'll test it and get back to you this weekend (on mobile now)

[mgreau]

I'll test it and get back to you this weekend (on mobile now)

@dduportal sorry I finally can't review it this week, I'll let you know when I'm ready to do it.

[dduportal]

@mgreau no problem. I pinged you for the bugfix which was affecting users.
For this PR, time is needed to review it, so do not bother your self and do it when you'll have your mind free :)

Thanks for the feedback.

[dduportal]

Hello @mgreau @mojavelinux , I would like to bump on this PR (I know both of you are busy but just in case) :)

[dduportal]

My aplogies @gscheibel , I just realized I totally forgot to add you as approver / mention you here.

I owe you a beer/tea/coffee if you are at BreizhCamp or DevoxxFR.

[dduportal]

After discussing this with @mgreau at the DevoxxFR 2018, he agree on we merge this.

Let's rollback or change if you have any issue!

[mojavelinux]

Let's do it!

[mojavelinux]

Do you still need any access that you don't currently have?

[dduportal]

Hello @mojavelinux !

If you do not mind, I would need access to the DockerHub 's asciidoctor image, so I'll be able to:

• Fix Full description rendering issue on docker hub #42
• Implement [Proposal] Continuous Deployment process of the image with Travis #49 when we'll come on an agrement (I also need to update it to reflect outcomes of the discussion I had with @mgreau about "slim" image)

[dduportal]

And again @mojavelinux , thanks for you trust!

[mojavelinux]

Of course! You should be all set now.

[mojavelinux]

Are any changes needed in the Travis settings?

[dduportal]

@mojavelinux sounds good, thanks a lot!