How to evaluate nested bash expressions in ansible commands?-CodePudding

I am trying to write an ansible script, and want to run a command with nested commands, e.g.:

echo "$(uname -s)-$(uname -r)" | grep "Linux"

NOTE: (The actual command is a curl request with multiple pipes and substitutions, but the above is just for simplification)

In my ansible playbook:


    - name: Run commands
      command: "{{ item }}"
      loop:
        - ...
        - echo "$(uname -s)-$(uname -r)" | grep "Linux"
        - ....

The problem is, ansible does not evaluate internal expressions and runs it literally: changed: [<IP>] => (item=echo "$(uname -s)-$(uname -r)" | grep "Linux")

I've seen examples of using pipe and lookup, but can't quite replicate it for multiple nested expressions.

Thanks

CodePudding user response：

As highlighted by β.εηοιτ.βε, by using the shell module I was able to execute the commands.

Changes code:


    - name: Run commands
      shell: "{{ item }}"
      loop:
        - ...
        - echo "$(uname -s)-$(uname -r)" | grep "Linux"
        - ....