In the documentation, and for terseness, many task examples are given like:
- apt: pkg=package_name state=installed update_cache=yes
However, for version control, legibility, etc., it's usually preferred (at
least as far as I've seen) to use a parameter-per-line approach, and there
are two basic ways to do this with normal YAML syntax, first, with the YAML
escape character and the parameters formatted the same (key=value):
- apt: >
pkg=package_name
state=installed
update_cache=yes
And second, using a normal YAML collection:
- apt:
pkg: package_name
state: installed
update_cache: yes
To my eye, both are valid approaches—with the edge towards normal YAML
collections, since syntax highlighting will allow for the keys to be
highlighted as such, and values will be in the normal string/bool/constant
mode. So visually, I lean towards the second option.
Going further, though, how would you handle tasks that use `command` or
`shell` (or something similar), where the main portion of the task is not a
key-value set, but just a given parameter?
- command: >
/usr/bin/executable --option 1
creates=/some/path/here
chdir=/home/johndoe
I know there's the option of adding an 'args' parameter and splitting out
creates/chdir/other options into another separate collection, but that
seems like an anti-pattern to me. Additionally, you would still have the
command itself, which I like having on it's own line for clarity's sake:
- command: >
/usr/bin/executable --option 1
args:
creates: /some/path/here
chdir: /home/johndoe
How do you deal with key-value pairs in your tasks? What is the preferred
and/or most used method? From what I've seen, it's usually a bit of a
hodgepodge, and there are still many playbooks, roles, and examples out
there with one-line tasks which are impossible to read/maintain unless
extremely simple.
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