Prototype the role

roles/ping_exporter/molecule/default/converge.yml

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+---
+- name: Converge
+  hosts: all
+  roles:
+    - role: "genlab.common.ping_exporter"
+      ping_exporter_targets:
+        - "127.0.0.1"

roles/ping_exporter/molecule/default/molecule.yml

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+---
+dependency:
+  name: galaxy
+
+driver:
+  name: docker
+
+platforms:
+  - name: ${MOLECULE_DISTRO:-ubuntu2404}
+    image: geerlingguy/docker-${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/ping_exporter/molecule/default/verify.yml

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+---
+- 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']
+
+    # kics-scan ignore-block
+    - name: "Check if /metrics endpoint is reachable"
+      retries: 10
+      delay: 2
+      register: ping_exporter_metrics_check
+      until: ping_exporter_metrics_check.status == 200
+      ansible.builtin.uri:
+        url: "http://127.0.0.1:9427/metrics"
+        return_content: true
+        status_code: 200
+        timeout: 5
+
+    - name: "Fail if /metrics doesn't contain ping_exporter metrics"
+      ansible.builtin.assert:
+        that: "'ping_up' in ping_exporter_metrics_check.content"
+        fail_msg: "ping_exporter /metrics endpoint doesn't contain ping_up metrics!"
+        success_msg: "ping_up metrics availble from /metrics"