[ansible-project] How to perform tasks only one host, based on previous output

[Kevin Csuka]

Hi,

My goal is to perform tasks only one host based on the output. Searched for 
--limit module to use in playbooks, but it is not present.

A shell script is executed on 3 nodes, which returns a boolean.

ok: [localMulti1] => {
    "variable": {
        ...
        "stdout": "true",
        ...
    }
}
ok: [localMulti2] => {
    "variable": {
        ...
        "stdout": "false",
        ...
    }
}
ok: [localMulti3] => {
    "variable": {
        ...
        "stdout": "false",
        ...
    }
}

How can I perform tasks on only on localMulti2? But not statically include 
the host (inventory_hostname == '...')

Failing with:

- shell: echo
  when: variable.stdout == "false" and ...

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