pre-calculation of variable in role/../vars

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1

Hello,
In the ‘vars’ directory of my ‘base-user’ role, I added :

homedir_prefix: “{% if user != ‘root’%}/home{% endif %}”

I thought I would be able to have the correct homedir for all users this way but I can’t seem to make it work.

The following works :

  • name: bash history conservation for user ‘{{ user }}’
    lineinfile: dest={% if user != “root”%}/home{% endif %}/{{ user }}/.bashrc
    regexp=“PROMPT_COMMAND”
    line=“export PROMPT_COMMAND=‘history -a; history -c; history -r’”
    sudo_user: “{{ user }}”

but I would like to extract the {% if user != “root”%}/home{% endif %} part.

Did you find a solution for this ?

2

You can do this

vars:
homedir: “{% if user != ‘root’ }/home/{{user}}{% else %}/root{% end if %}”

…

dest={{ homedir }}/.bashrc

3

Hello,
I tried

role/myrole/vars/main.yml:
homedir: “{% if user != ‘root’ }/home/{{user}}{% else %}/root{% end if %}”

role/myrole/tasks/main.yml
…
dest={{ homedir }}/.bashrc

but I get an error :

failed: […] => {“failed”: true, “item”: “”}
msg: this module requires key=value arguments ([‘dest={%’, ‘if’, ‘user’, ‘!=’, ‘root’, ‘}/home/{{user}}{%’, ‘else’, ‘%}/root{%’, ‘end’, ‘if’, ‘%}/.bashrc’, ’

trying with
…
dest=‘{{ homedir }}/.bashrc’

I get :

failed: […] => {“failed”: true, “item”: “”, “rc”: 257}
msg: Destination {% if user != root }/home/{{user}}{% else %}/root{% end if %}/.bashrc does not exist !

I don’t understand why the templating is not working.
I also tried with

role/myrole/vars/main.yml:
homedir: “{% if user != ‘root’ }/home/{{user}}{% else %}/root{% endif %}”

(note the “endif” instead of “end if”)

Am I missing something ?
Thanks for your help

4

Ok I found the error :

instead of :
vars:

homedir: “{% if user != ‘root’ }/home/{{user}}{% else %}/root{% end if %}”

use

vars:
homedir: “{% if user != ‘root’ %}/home/{{user}}{% else %}/root{% endif %}”

Those typos always seem so obvious after they’re found :wink:

Sorry for the noise.