Merge pull request 'feat/ufw_implementation' (#2) from feat/ufw_implementation into main

Reviewed-on: #2

homelab.yml

@@ -1,11 +1,15 @@
 # yaml-language-server: $schema=https://raw.githubusercontent.com/ansible/ansible-lint/main/src/ansiblelint/schemas/playbook.json
 ---
 - name: Homelab alignment
-  hosts: online
+  hosts: managed
   become: true
 
   roles:
-    - role: repos
-    - role: common
     - role: ufw
+      tags: ufw
+
+    - role: repos
+      tags: repos
+
     - role: upgrade
+      tags: upgrade

roles/ufw/defaults/main.yml

@@ -1,4 +1,5 @@
 # roles/ufw/defaults/main.yml
 ---
+ufw_default_incoming_policy: deny
+ufw_default_outgoing_policy: allow
 ufw_tailscale_interface: tailscale0
-ufw_extra_rules: []

roles/ufw/tasks/main.yml

@@ -0,0 +1,46 @@
+---
+# roles/ufw/tasks/main.yml
+
+- name: Install UFW (Alpine)
+  community.general.apk:
+    name: ufw
+    state: present
+    update_cache: true
+  when: ansible_facts['os_family'] == "Alpine"
+
+- name: Install UFW (Debian)
+  ansible.builtin.apt:
+    name: ufw
+    state: present
+    update_cache: true
+  when: ansible_facts['os_family'] == "Debian"
+
+- name: Add UFW to default runlevel (Alpine)
+  ansible.builtin.command:
+    cmd: rc-update add ufw default
+  register: rc_update_result
+  changed_when: >- # ">- : transform multiple lines into one line"
+    'already' not in rc_update_result.stdout
+    and 'already' not in rc_update_result.stderr
+  failed_when: rc_update_result.rc != 0
+  when: ansible_facts['os_family'] == "Alpine"
+
+- name: Set default incoming policy
+  community.general.ufw:
+    default: "{{ ufw_default_incoming_policy }}"
+    direction: incoming
+
+- name: Set default outgoing policy
+  community.general.ufw:
+    default: "{{ ufw_default_outgoing_policy }}"
+    direction: outgoing
+
+- name: Enable UFW
+  community.general.ufw:
+    state: enabled
+
+- name: Allow all traffic on Tailscale interface
+  community.general.ufw:
+    rule: allow
+    interface: "{{ ufw_tailscale_interface }}"
+    direction: in