omni-ansible/playbooks/configure-env.yml

---
- name: Configure environment
  hosts: all
  tasks:
    - name: Set hostname
      become: true
      hostname:
        name: "{{ ansible_host }}"

    - import_tasks: tasks/sshd/banner.yml

    - name: Install global bash components
      become: true
      copy:
        src: bash/{{ item }}.sh
        dest: /etc/profile.d/Z-{{ 10 + loop_index }}-enpn-{{ item }}.sh
        mode: 0644
      loop:
        - global
        - pyenv
        - aliases
        - helpers
      loop_control:
        index_var: loop_index
        label: "{{ item }}"

    - name: Disable dynamic MOTD
      become: true
      replace:
        path: /etc/pam.d/sshd
        regexp: "^session\\s+optional\\s+pam_motd\\.so.*$"
        replace: "#session    optional     pam_motd.so"

    - name: Remove legacy global bashrc
      become: true
      file:
        path: /etc/profile.d/ZA-enpn-bashrc.sh
        state: absent

    - name: Disable case-sensitive autocomplete
      become: true
      lineinfile:
        path: /etc/inputrc
        line: set completion-ignore-case ((o|O)(n|ff))
        create: true
        mode: 0644

- name: Configure additional security settings on shared servers
  hosts: servers
  tasks:
    - name: Identify local home directories
      become: true
      find:
        file_type: directory
        path: /home/
        recurse: false
      register: _local_home_dirs

    - name: Determine files to write-protect
      set_fact:
        _secure_files: >-
          {{ _secure_files | default([]) + [
            item.path ~ '/.bashrc',
            item.path ~ '/.bash_profile',
            item.path ~ '/.ssh/authorized_keys',
            item.path ~ '/.ssh/config'
          ] }}
      loop: "{{ _local_home_dirs.files }}"
      loop_control:
        label: "{{ item.path }}"

    - name: Fetch status of secure files
      become: true
      stat:
        path: "{{ item }}"
      loop: "{{ _secure_files }}"
      loop_control:
        label: "{{ item }}"
      register: _secure_file_stats

    - name: Restrict access to secure files
      become: true
      file:
        path: "{{ item.item }}"
        state: "{{ 'file' if item.stat.exists else 'touch' }}"
        mode: 0400
      loop: "{{ _secure_file_stats.results }}"
      loop_control:
        label: "Write-protecting: {{ item.item }}"