[18.09] fix cvmfs install

[abretaud]

I'm trying to fix errors in the galaxy docker compose images (a PR should come soon).
I found this problem with apt install of cvmfs, I think the key needs to be installed before adding the apt repo

[drosofff]

Hi Anthony,

I profit from the occasion, to propose that the ansible version is "pinned" and the same for all galaxyproject-ansible repositories.
I am not saying that it is your issue, but I suspect pip install ansible without == in the .travis.yml is a possible option.
On the same line I am currently investigating why the last PRs of ansible-galaxy-os are not compatible with GalaxyKickStart and I suspect similarly that this is a problem of ansible syntaxe.

Cheers

[bgruening]

@drosofff ansible is really changing fast. I agree we should document the tested ansbile versions of our roles and test those. Good project for next year or maybe Xmas :)

[drosofff]

@bgruening

Good project for next year or maybe Xmas :)

Definitely for the next year, IntergalacticAnsible Utilities Commission IAUC ;-) I'd love !
For Xmas, I have unfortunately already several good projects waiting in the queue :-/

[bgruening]

I will get this in, we can fix the failure in the branch or when we merge the branch back to master.

Thanks @abretaud!

[bgruening]

@drosofff that was more a note to myself :)