- break out packages by os distro/version

roles/common/tasks/main.yaml

@@ -1,4 +1,7 @@
 ---
+- name: Include OS-specific variables
+  include_vars: "os_{{ ansible_lsb.id }}_{{ ansible_lsb.major_release }}.yml"
+
 - name: Upgrade all packages to the latest version
   become: true
   apt:
@@ -23,13 +26,10 @@
           content: "{{ lookup('template', '{{ role_path }}/templates/hosts.j2') }}"
           state: present
   tags: update_hosts
-- name: install programs and libraries
-  become: true
-  apt:
-          name: [ 'expect', 'ftp', 'cadaver', 'iperf', 'iperf3', 'libpcap0.8', 'libsctp1', 'libsctp-dev', 'libncurses-dev', 'libssl-dev', 'libpcap-dev', 'vim', 'mc', 'smbclient', 'ncurses-dev', 'build-essential', 'openvpn', 'lightdm', 'lxde', 'realvnc-vnc-server', 'aptitude', 'chromium-browser', 'raspberrypi-ui-mods' ]
-          update_cache: true
-          state: present
-  tags: install_packages
+- name: install required packages
+  package:
+    name: "{{ dependency_packages }}"
+    state: present
 - name: set hostname
   become: true
   hostname:

roles/common/vars/os_Raspbian_10.yml

@@ -0,0 +1,25 @@
+dependency_packages:
+  - name:
+  - expect
+  - ftp
+  - cadaver
+  - iperf
+  - iperf3
+  - libpcap0.8
+  - libsctp1
+  - libsctp-dev
+  - libncurses-dev
+  - libssl-dev
+  - libpcap-dev
+  - vim
+  - mc
+  - smbclient
+  - ncurses-dev
+  - build-essential
+  - openvpn
+  - lightdm
+  - lxde
+  - realvnc-vnc-server
+  - aptitude
+  - chromium-browser
+  - raspberrypi-ui-mods