feat: implement molecule to test role

molecule/default/converge.yml

@@ -0,0 +1,6 @@
+#SPDX-License-Identifier: GPL-3.0-only
+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: ansible_role_proxy

molecule/default/molecule.yml

@@ -0,0 +1,26 @@
+#SPDX-License-Identifier: GPL-3.0-only
+---
+dependency:
+  name: galaxy
+
+driver:
+  name: podman
+
+platforms:
+  - name: instance
+    image: ghcr.io/geerlingguy/docker-debian12-ansible:latest
+    pre_build_image: true
+    privileged: true
+    systemd: always
+    volumes:
+      - /sys/fs/cgroup:/sys/fs/cgroup:rw
+    cgroupns_mode: host
+
+provisioner:
+  name: ansible
+  playbooks:
+    converge: converge.yml
+    verify: verify.yml
+
+verifier:
+  name: ansible

molecule/default/verify.yml

@@ -0,0 +1,23 @@
+#SPDX-License-Identifier: GPL-3.0-only
+---
+- name: Verify
+  hosts: all
+  tasks:
+    - name: Check traefik binary
+      ansible.builtin.stat:
+        path: /opt/traefik/traefik
+      register: traefik_binary
+
+    - name: Assert traefik binary is executable
+      ansible.builtin.assert:
+        that:
+          - traefik_binary.stat.exists
+          - traefik_binary.stat.executable
+
+    - name: Gather service facts
+      ansible.builtin.service_facts:
+
+    - name: Assert traefik service is present
+      ansible.builtin.assert:
+        that:
+          - "'traefik.service' in ansible_facts.services"