adding an fstab option using Ansible

regex ansible mount mount-point
Brian Putt picture Brian Putt · Sep 22, 2014 · Viewed 21.1k times · Source

I am trying to add nodev to my /etc/fstab file. I am using the Ansible command below but with no luck. My issue lies with the regular expression, I'm not a pro at regex.

- name: Add nodev to /etc/fstab
  lineinfile:
    dest=/etc/fstab
    backup=yes
    backrefs=yes
    state=present
    regexp='(^/dev[\w/_-]+(\s+(?!nodev)[\w,]+)*)'
    line='\1,nodev'

One of the lines from /etc/fstab that I am trying to add nodev is:

/dev/mapper/ex_sys-ex_home /home /ext4 rw,exec,auto,nouser,sync 1 2

Answer

Brian Putt picture Brian Putt · Sep 22, 2014

While this may not be the most elegant answer, it worked for me.

- name: Ensure fstab uses nodev
  mount:
    name: "{{ item.mount }}"
    src: "{{ item.device }}"
    fstype: "{{ item.fstype }}"
    opts: "{{ item.options }},nodev"
    state: present
  with_items: ansible_mounts
  when: item.options.find(",") >= 0 and item.options.find("nodev") == -1

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