add ufw role

roles/ufw/molecule/default/converge.yml

@@ -0,0 +1,17 @@
+---
+- name: Converge
+  hosts: all
+  vars:
+    custom_rules:
+      - port: 80
+      - port: 9080
+        src: "10.2.1.0/24"
+      - interface: eth0@if288
+        direction: in
+        comment: "Allow all incoming traffic on eth0@if288"
+
+  roles:
+    - role: genlab.ufw
+      disable_ipv6: true
+      limit_ssh: true
+      rules: "{{ custom_rules }}"

roles/ufw/molecule/default/molecule.yml

@@ -0,0 +1,27 @@
+---
+dependency:
+  name: galaxy
+
+driver:
+  name: docker
+
+platforms:
+  - name: ubuntu
+    image: geerlingguy/docker-${MOLECULE_DISTRO:-ubuntu2204}-ansible:latest
+    pre_build_image: true
+    command: ${MOLECULE_DOCKER_COMMAND:-""}
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    cgroupns_mode: host
+    privileged: true
+
+provisioner:
+  name: ansible
+
+verifier:
+  name: ansible
+
+lint: |
+  set -e
+  yamllint .
+  ansible-lint .

roles/ufw/molecule/default/verify.yml

@@ -0,0 +1,28 @@
+---
+- name: Verify
+  hosts: all
+  gather_facts: false
+  any_errors_fatal: true
+
+  tasks:
+    - name: "Get the UFW status"
+      register: ufw_status
+      changed_when: false
+      ansible.builtin.command:
+        cmd: ufw status
+
+    - name: "Verify expected UFW status"
+      vars:
+        expected:
+          - "Status: active"
+          - ""
+          - "To                         Action      From"
+          - "--                         ------      ----"
+          - "22/tcp                     LIMIT       Anywhere                  "
+          - "80                         ALLOW       Anywhere                  "
+          - "9080                       ALLOW       10.2.1.0/24               "
+          - "Anywhere on eth0@if288     ALLOW       Anywhere                   # Allow all incoming traffic on eth0@if288"
+      ansible.builtin.assert:
+        that: ufw_status.stdout_lines == expected
+        success_msg: "UFW has the expected state"
+        fail_msg: "Unexpected UFW state (some rules may have not been applied correctly)"