add: ansible test playbook

ansible/test.yml

@@ -0,0 +1,30 @@
+- name: Semaphore connectivity test
+  hosts: all
+  become: true
+
+  tasks:
+    - name: Print whoami
+      command: whoami
+      register: whoami_output
+
+    - name: Show whoami result
+      debug:
+        msg: "Running as user: {{ whoami_output.stdout }}"
+
+    - name: Print hostname
+      command: hostname
+      register: hostname_output
+
+    - name: Show hostname
+      debug:
+        msg: "Host name is: {{ hostname_output.stdout }}"
+
+    - name: Check docker is available
+      command: docker --version
+      register: docker_output
+      changed_when: false
+
+    - name: Show docker version
+      debug:
+        msg: "{{ docker_output.stdout }}"
+