Update best practice in README.md

[dometto]

Hi all,

I tried following the best practices guide in the README in the playbook I'm working on and noticed I had to deviate from it at some points. Maybe I did something wrong, but wanted to open this PR in case the best practice indeed needs to be updated. I'm pretty sure about the following changes:

• update to the postgres_objects role name
• supervisorctl should not be used

I needed to add the systemd post_tasks to actually get Galaxy to start up the first time, but maybe there's a better way for this?

[hexylena]

Suggested change

	command: "/usr/local/bin/galaxyctl graceful"
	command: "{{ galaxy_gravity_command }} graceful"

[dometto]

I think this sadly doesn't work because galaxy_gravity_command is a default within the galaxy role, so it's not available in the playbook. But {{ galaxy_venv_dir }}/bin/galaxyctl might be a bit better?

[hexylena]

Ah I knew I was using that based on seeing it from somewhere: the built in handlers We have two handlers defined, that call this already (handlers/gravity_23.0.yml)

So these handlers as defined in the example are no longer necessary.

[dometto]

Ah right! Those handlers weren't working for me, but I now see that may be due to #202 -- so probably that issue should be fixed, and the handlers should not be defined in the Readme. :)

[hexylena]

Suggested change

	command: "/usr/local/bin/galaxyctl start"
	command: "{{ galaxy_gravity_command }} start"

[hexylena]

in case the best practice indeed needs to be updated.

thank you for opening this, yes, they do. We haven't been keeping the readme up to date, not many people are reaching this repository via the readme and trying to setup galaxy with just that information. Most folks go through the course where we document the 'best practices' more thoroughly.