Need help in updating /etc/grub.conf file to disable THP in linux server using Ansible

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1

I need help in updating /etc/grub.conf file to disable THP in Linux servers. I used below Ansible lineinfile module but it updates the kernel line everytime when I run it, I need which runs and updates every line of kernel in /etc/fstab file. Please suggest.

name: disable THP (RedHat)
  lineinfile: dest=/boot/grub/grub.conf
  backup=True
  backrefs=True
  state=present
  regexp='(^\s+kernel(\s+(?!transparent_hugepage=never)[\w=/\-\.\,\_]+)*)\s*$'
  line='\1 transparent_hugepage=never'

Each time I run the play it will add "transparent_hugepage=never" to a single line where it is not found, instead of every line that starts with kernel. Please suggest how to update this string in all the line that starts with Kernel.

Thanks

2

Perhaps you want 'replace' rather than 'lineinfile'? Being careful that
your regexp doesn't match the line if it's already correct.

Richard

3

Please suggest how to do that.

Thanks