add nginx role

roles/nginx/molecule/default/converge.yml

@@ -0,0 +1,36 @@
+---
+- name: Converge
+  hosts: all
+  post_tasks:
+    - name: "Create a test site root"
+      ansible.builtin.file:
+        path: /var/www/html
+        state: directory
+        owner: nginx
+        group: nginx
+        mode: "0755"
+
+    - name: "Push a test index file"
+      ansible.builtin.copy:
+        src: index.html
+        dest: /var/www/html
+        owner: nginx
+        group: nginx
+        mode: "0644"
+
+  roles:
+    # using default NGINX verison
+    - role: genlab.nginx
+      site:
+        confname: test-var
+        content: |
+          server {
+              listen 80;
+              server_name example.com www.example.com;
+
+              location / {
+                  root /var/www/html;
+                  index index.html;
+              }
+          }
+      dir_sites: '{{ lookup("env", "MOLECULE_PROJECT_DIRECTORY") }}/molecule/default/site-configs/'

roles/nginx/molecule/default/files/index.html

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+Hello from ansible-nginx!

roles/nginx/molecule/default/molecule.yml

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+---
+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/nginx/molecule/default/site-configs/test-dir.conf

@@ -0,0 +1,9 @@
+server {
+    listen 8080;
+    server_name test.com;
+
+    location / {
+        root /var/www/html;
+        index index.html;
+    }
+}

roles/nginx/molecule/default/verify.yml

@@ -0,0 +1,73 @@
+# kics-scan disable=2e8d4922-8362-4606-8c14-aa10466a1ce3
+---
+- name: Verify
+  hosts: all
+  gather_facts: false
+  any_errors_fatal: true
+
+  pre_tasks:
+    - name: "Include default vars"
+      ansible.builtin.include_vars:
+        dir: '{{ lookup("env", "MOLECULE_PROJECT_DIRECTORY") }}/defaults/'
+        extensions:
+          - 'yml'
+
+  tasks:
+    - name: "Verify NGINX version"
+      register: nginx_version_output
+      changed_when: false
+      failed_when: nginx_version_output.rc != 0
+      ansible.builtin.command: /usr/sbin/nginx -v
+
+    # version is displayed as e.g. 'nginx version: nginx/1.26.3'
+    - name: "Extract NGINX version"
+      ansible.builtin.set_fact:
+        nginx_version: "{{ nginx_version_output.stderr.split('/')[1] }}"
+
+    - name: "Check expected NGINX version"
+      ansible.builtin.assert:
+        that: nginx_version.startswith(nginx_version)
+        fail_msg: "Unexpected NGINX version found: '{{ nginx_version }}'"
+
+    - name: "Gather service facts"
+      ansible.builtin.service_facts:
+
+    - name: "Assert NGINX service is running"
+      ansible.builtin.assert:
+        that: ansible_facts.services['nginx.service'].state == 'running'
+        fail_msg: "NGINX service is not running."
+
+    - name: "Assert NGINX service is enabled"
+      ansible.builtin.assert:
+        that: ansible_facts.services['nginx.service'].status == 'enabled'
+        fail_msg: "NGINX service is not enabled."
+
+    - name: "Get an HTTP response from the test site (single site deployment from a variable)"
+      register: response
+      ansible.builtin.uri:
+        url: http://localhost:80
+        status_code: 200
+        return_content: true
+
+    - name: "Check the response correctness"
+      vars:
+        message: "{{ response.content | trim }}"
+      ansible.builtin.assert:
+        that: message == 'Hello from ansible-nginx!'
+        success_msg: "{{ message }}"
+        fail_msg: "Unexpected response from the test site: '{{ message }}'"
+
+    - name: "Get an HTTP response from the test site (site deployment from a dictionary)"
+      register: response
+      ansible.builtin.uri:
+        url: http://localhost:8080
+        status_code: 200
+        return_content: true
+
+    - name: "Check the response correctness"
+      vars:
+        message: "{{ response.content | trim }}"
+      ansible.builtin.assert:
+        that: message == 'Hello from ansible-nginx!'
+        success_msg: "{{ message }}"
+        fail_msg: "Unexpected response from the test site: '{{ message }}'"