Automate light server

Co-authored-by: J <j@jsts.xyz>

playbooks/roles/add_apt_repository/tasks/main.yml

@@ -0,0 +1,23 @@
+---
+- name: Check OS family
+  ansible.builtin.fail:
+    msg: "Can only add apt repositories on Debian-based systems!"
+  when: ansible_facts.os_family != "Debian"
+- name: Install required apt packages for adding an apt repository
+  ansible.builtin.apt:
+    name:
+      - ca-certificates
+      - gnupg
+- name: Install apt-transport-https if https repository
+  ansible.builtin.apt:
+    name: apt-transport-https
+  when: add_apt_repository__https_repo
+- name: Add repository signing key to keychain
+  ansible.builtin.apt_key:
+    url: "{{ add_apt_repository__keyring_url }}"
+    keyring: "{{ add_apt_repository__keyring_path }}"
+    state: present
+- name: Add repository and update cache
+  ansible.builtin.apt_repository:
+    repo: "{{ add_apt_repository__repo }}"
+    filename: "{{ add_apt_repository__filename }}"