GCC2019 Admin Training feedback clarifications and improvements

[natefoo]

Clarifications and improvements to the Installing with Ansible exercise identified during the 2019 GCC.

Maintainers, feel free to commit directly to my fork/branch. Everyone else, feel free to suggest changes using the Github feature or as comments.

Other stuff

• Using production certs when doing the training yourself is probably ok but for training we should use certbot_environment: staging since the rate limit on production certs is 50 per domain per week. The downside is cert validation warnings, which is a bummer, but unless we get a bunch of specialty training domains I'm not sure what alternative we have.
• We need to set:
  • tool_path in shed_tool_conf.xml
  • shed_tool_data_dir
• Add a step to create welcome.html
• galaxyproject.galaxy ought to automatically copy job_conf.xml and other common configs
• completed playbook https://github.com/chrisbarnettster/dev-gcc-2019-intro-galaxy
• Update final copy of playbook in admin training #1449
• admin nginx add welcome page route #1448
• admin training GCC2019 notes #1436
• Remove some of the "conversational style and just be explicit about what goes where
• Specify in the requirements of the tuto, the minimum VM size.
• Add a box explaining role dependencies
• Add a box explaining templating when first used (i.e. 'at runtime' stuff.)
• Add welcome page in nginx route
• One true ansible setup (on remote machine + desribe why bad in prod) xref admin training GCC2019 notes #1436
• Limit apocalypse to not affect client build maybe? https://github.com/galaxyproject/dagobah-training/blob/2019-gcc/bootstrap-instances/disaster.yml

[hexylena]

also:

• completed playbook https://github.com/chrisbarnettster/dev-gcc-2019-intro-galaxy
• Update final copy of playbook in admin training #1449
• admin nginx add welcome page route #1448
• admin training GCC2019 notes #1436

[hexylena]

Ok huge amount of detail has been added, would appreciate review. It's out of WIP from my side, maybe @natefoo has some additional items.

[hexylena]

@natefoo anything more for removing the WIP label?

[natefoo]

@erasche nope!

[hexylena]

Thanks all!