Fabric: Set configuration variables per-host outside task

Question

This question is similar to - Pass parameter to fabric task

My problem is that I want to deploy my sphinx html documentation to a remote server.

I also want to define a remote directory where i copy the files to, for each host separately, outside the task function, preferably also outside the fabfile.

Thank you @DanielNova for the edit. Not sure why you wrote some things in code style, but whatever. — Markus Unterwaditzer, Sep 15 '12 at 19:12
So your question is how to read variables/settings from outside the fabfile in order to change parameters? — Burhan Khalid, Sep 15 '12 at 19:12
Sorry, just wanted to make it stand out a bit more for people glancing at it. — dsgriffin, Sep 15 '12 at 19:14
@BurhanKhalid yes, probably. However, i want to do it the way it should be done in fabric, otherwise i also could stick with my bash helper scripts. — Markus Unterwaditzer, Sep 15 '12 at 19:14

score 1 · Accepted Answer · answered Sep 16 '12 at 19:49

1

Use a dictionary if the hosts and paths are known ahead of time or could be computed. EG:

env.sphinx_path = {
    'hosta': 'patha',
    'hostb': 'pathb',
}

@task
@hosts('hosta','hostb')
def foo(dummy_var):
    put('sphinx_stuff', env.sphinx_path%env.host)

Otherwise you could just pass the path like:

fab foo:'sphinx/path'

And that would populate dummy_var in the above example for you to then use in the task.

answered Sep 16 '12 at 19:49

Morgan

4,143
27
35

Seems like that's the only way to do it in fabric. Thanks. – Markus Unterwaditzer Sep 17 '12 at 14:14
Well you could also feed in a file, or have it call some database, or GET from a url. Pretty much anything python can do to get you a list or value, you can use. – Morgan Sep 17 '12 at 14:28
I know, right, but i thought there may be some sort of per-host configuration storage in the .fabricrc or something. – Markus Unterwaditzer Sep 17 '12 at 14:32

Fabric: Set configuration variables per-host outside task

1 Answers1