Split into roles and add parameters

roles/base/README.md

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+base
+====
+Installs Ansible prerequisites if needed and than installs basic utility packages

roles/base/files/ansible_prerequisites.sh

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+#!/bin/bash
+set -e
+#pacman -Syu --noconfirm   #Skip this step because reboot is needed to start docker in case of kernel update
+pacman -S python --noconfirm
+touch /root/.ansible_prerequisites_installed

roles/base/tasks/main.yml

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+---
+- name: Install ansible prerequisites
+  script: ansible_prerequisites.sh creates=/root/.ansible_prerequisites_installed
+- name: Install base packages
+  package: name={{item}} state=present update_cache=yes
+  with_items:
+    - htop
+    - git
+    - nload
+    - rsync
+    - ufw
+    - vim
+    - wget
+    - zsh