Playbook not idempotent: console key is regenerated every run

[franklouwers]

The code which checks if the console has already been set, fails every time. This causes the console key to be regenerated every run.

When debugging the command which checks the key, Ansible reports:

    "dnsdist_grepkey_cmd": {
        "changed": false,
        "cmd": "set -o pipefail && fgrep setKey \"/etc/dnsdist/dnsdist.conf\" | sed 's/setKey(\"\\(.*\\)\")/\\1/'\n",
        "delta": "0:00:00.006208",
        "end": "2024-02-15 13:41:22.905134",
        "failed": false,
        "failed_when_result": false,
        "msg": "non-zero return code",
        "rc": 2,
        "start": "2024-02-15 13:41:22.898926",
        "stderr": "/bin/sh: 1: set: Illegal option -o pipefail",
        "stderr_lines": [
            "/bin/sh: 1: set: Illegal option -o pipefail"
        ],
        "stdout": "",
        "stdout_lines": []
    }

I'll investigate some more (could be bash vs sh) and add a PR