add the ansible playbooks for the monitoring stack

ansible/roles/common/tasks/main.yml

@@ -0,0 +1,29 @@
+---
+- name: Install common dependencies
+  ansible.builtin.apt:
+    name:
+      - curl
+      - tar
+      - gzip
+      - ca-certificates
+    state: present
+
+- name: Create monitoring user
+  ansible.builtin.user:
+    name: monitoring
+    system: true
+    shell: /usr/sbin/nologin
+    home: /var/lib/monitoring
+    create_home: false
+
+- name: Create common directories
+  ansible.builtin.file:
+    path: "{{ item }}"
+    state: directory
+    owner: monitoring
+    group: monitoring
+    mode: "0755"
+  loop:
+    - /etc/monitoring
+    - /var/lib/monitoring
+    - /var/log/monitoring