Ansible lineinfile regex to edit Fedora GRUB_CMDLINE_LINUX and enable grub serial console

serial_fedora_server.yml

- name: test regex with lineinfile to edit default grub config
  hosts: localhost
  connection: local
  gather_facts: no
  vars:
    ip_string: "ip=192.168.1.211::192.168.1.254:255.255.255.0:::"
  tasks:
    - name: edit GRUB_CMDLINE_LINUX
      ansible.builtin.lineinfile:
        backrefs: yes
        backup: yes
        path: grub
        line: '\g<grub_cmdline_1> {{ item }}\g<grub_cmdline_2>'
        regexp: '(?P<grub_cmdline_1>^GRUB_CMDLINE_LINUX=(?!.*?\b{{ item }})\"[^\"]*)(?P<grub_cmdline_2>\".*$)'
      loop:
        - "console=tty1"
        - "console=ttyS0,115200n8"
        - "console=ttyS1,115200n8"

    - name: add GRUB_SERIAL_COMMAND
      ansible.builtin.lineinfile:
        backup: yes
        path: grub
        line: 'GRUB_SERIAL_COMMAND="serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1"'
        regexp: '^GRUB_SERIAL_COMMAND=.*$'

    - name: remove GRUB_TERMINAL_OUTPUT
      ansible.builtin.lineinfile:
        backup: yes
        path: grub
        state: absent
        regexp: '^GRUB_TERMINAL_OUTPUT=.*'

    - name: set GRUB_TERMINAL
      ansible.builtin.lineinfile:
        backup: yes
        path: grub
        line: 'GRUB_TERMINAL="console serial"'
        regexp: '^GRUB_TERMINAL=\"console serial\"'

    - name: edit GRUB_CMDLINE_LINUX to set ip argument if one does not exist yet
      ansible.builtin.lineinfile:
        backrefs: yes
        backup: yes
        path: grub
        line: '\g<grub_cmdline_1> {{ ip_string }}\g<grub_cmdline_2>'
        regexp: '(?P<grub_cmdline_1>^GRUB_CMDLINE_LINUX=(?!.*?ip=)\"[^\"]*)(?P<grub_cmdline_2>\".*?$)'

    - name: edit GRUB_CMDLINE_LINUX to set ip argument if one does exist already but is not an exact match for the one required
      ansible.builtin.lineinfile:
        backrefs: yes
        backup: yes
        path: grub
        line: '\g<grub_cmdline_1> {{ ip_string }}\g<grub_cmdline_2>'
        regexp: '^(?P<grub_cmdline_1>GRUB_CMDLINE_LINUX=(?!.*?{{ ip_string }})\"[^\"]*?)\s?(?:ip=\S+)\s?(?P<grub_cmdline_2>[^\"]*\"$)'