made use of username of user logged in and running 'sudo' for particular tasks, added true 'become' attrbute to some tasks

roles/init-server/tasks/harden.yml

@@ -1,11 +1,17 @@
 #SPDX-License-Identifier: MIT-0
 ---
 # tasks file for roles/init-vps
+- name: Acquiring current user
+  when: ansible_facts["system"] == "Linux"
+  ansible.builtin.shell:
+    cmd: "echo {{ ansible_user }}"
+  register: current_user
 - name: Checking whether administrative login used
   when: ansible_user not in (admins | map(attribute="username") | list) and ansible_user != "root"
   ansible.builtin.fail:
     msg: Must use administrative user for subsequent tasks
 - name: Hardening SSH service
+  become: true
   ansible.builtin.copy:
     src: sshd_config.d/harden.conf
     dest: /etc/ssh/sshd_config.d/harden.conf