add smartctl_exporter role

roles/smartctl_exporter/molecule/default/converge.yml

@@ -0,0 +1,7 @@
+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: genlab.smartctl_exporter
+      smartctl_exp_dir: "/etc/exporters"
+      smartctl_exp_config_dir: "/etc/exporters/config"

roles/smartctl_exporter/molecule/default/molecule.yml

@@ -0,0 +1,27 @@
+---
+dependency:
+  name: galaxy
+
+driver:
+  name: docker
+
+platforms:
+  - name: ubuntu
+    image: geerlingguy/docker-${MOLECULE_DISTRO:-ubuntu2404}-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/smartctl_exporter/molecule/default/verify.yml

@@ -0,0 +1,37 @@
+---
+- name: Verify
+  hosts: all
+  gather_facts: false
+  any_errors_fatal: true
+
+  tasks:
+    - name: "Include default vars"
+      ansible.builtin.include_vars:
+        dir: "{{ lookup('env', 'MOLECULE_PROJECT_DIRECTORY') }}/defaults/"
+        extensions: [ 'yml' ]
+
+    - name: "Check if smartctl_exporter is installed"
+      changed_when: false
+      ansible.builtin.command: "smartctl_exporter --version"
+      register: smartctl_exporter_installed_version
+
+    - name: "Check smartctl_exporter version"
+      ansible.builtin.assert:
+        that: "smartctl_exporter_installed_version.stderr is regex('{{ smartctl_exp_version }}')"
+        success_msg: "smartctl_exporter version {{ smartctl_exp_version }} is installed and working"
+        fail_msg: "smartctl_exporter version {{ smartctl_exp_version }} is not installed or not working correctly"
+
+    # kics-scan ignore-block
+    - name: "Check if /metrics endpoint is reachable"
+      ansible.builtin.uri:
+        url: "http://{{ smartctl_exp_web_listen_address }}/metrics"
+        return_content: true
+        status_code: 200
+        timeout: 5
+      register: metrics_check
+
+    - name: "Fail if /metrics doesn't contain smartctl_exporter_build_info line"
+      ansible.builtin.assert:
+        that: "'smartctl_exporter_build_info' in metrics_check.content"
+        fail_msg: "smartctl_exporter /metrics endpoint doesn't contain smartctl_exporter_build_info line!"
+        success_msg: "smartctl_exporter /metrics endpoint contains smartctl_exporter_build_info line!"