I have to create a number of users using ansible. I pass the users as a list inside my ansible play in the vars section:
vars:
users: ['user1', 'user2']
I then have to create a script that uses this users' ID as an argument. The command inside the script is something like this:
blobfuse $1 --tmp-path=/mnt/resource/{{ item }}/ -o attr_timeout=240 -o entry_timeout=240 -o negative_timeout=120 -o uid=$USER_ID -o allow_other --container-name={{ item }} --file-cache-timeout-in-seconds=120 --config-file=/root/connection-{{ item }}.cfg
Everything works fine, with the exception of uid= I have tried with the lookup's pipe plugin but this doesn't get me the correct UID:
{{ lookup('pipe', 'grep -w {{ item }} /etc/passwd | cut -d : -f3') }}
My end goal is to get the UID of each of the created users, and pass that to the blobfuse command above.
What about using id command and subshell? You can then do something like
blobfuse $1 --tmp-path=/mnt/resource/{{ item }}/ -o attr_timeout=240 -o entry_timeout=240 -o negative_timeout=120 -o uid="$(id {{ item }})" -o allow_other --container-name={{ item }} --file-cache-timeout-in-seconds=120 --config-file=/root/connection-{{ item }}.cfg
If you are using command module - you'll have to replace it with shell.
Edit: If you are using templates and want to use lookup plugin, which seems cleaner, you can do something like this (this was tested on local linux machine):
template.yaml
{% for item in users %}
{{ item }} {{ lookup('pipe', "id -u " + item) }}
{% endfor %}
ansible command
ansible -m template -i localhost, all -c local -a "src=template.yaml dest=result.txt" -e "{ users: [nobody,root]}"
result.txt
nobody 65534
root 0
In your case the error was using the {{ item }} in lookup, you should use just variable names and concatenation inside {{}} block