Add disk and RAM health check playbook

Reports disk usage, memory, and swap per host with warnings
for partitions exceeding 85% usage.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

playbooks/health_check.yml

@@ -0,0 +1,62 @@
+---
+- name: Check Host Availability
+  hosts: all
+  gather_facts: false
+  ignore_unreachable: true
+
+  tasks:
+    - name: Ping hosts to check availability
+      ansible.builtin.ping:
+      register: ping_result
+      ignore_errors: true
+      ignore_unreachable: true
+
+    - name: Add reachable hosts to group
+      ansible.builtin.group_by:
+        key: reachable_hosts
+      when: ping_result is succeeded
+
+    - name: Report offline hosts
+      ansible.builtin.debug:
+        msg: "{{ inventory_hostname }} - OFFLINE"
+      when: ping_result is not succeeded
+      delegate_to: localhost
+
+- name: Disk and RAM Usage Report
+  hosts: reachable_hosts
+  become: true
+  gather_facts: true
+
+  tasks:
+    - name: Get disk usage
+      ansible.builtin.shell: df -h --output=target,size,used,avail,pcent -x tmpfs -x devtmpfs | tail -n +2
+      register: disk_usage
+      changed_when: false
+
+    - name: Calculate memory percentage
+      ansible.builtin.set_fact:
+        mem_total_mb: "{{ ansible_memtotal_mb }}"
+        mem_used_mb: "{{ ansible_memtotal_mb - ansible_memfree_mb - (ansible_memory_mb.nocache.free | default(0)) }}"
+        mem_pct: "{{ (((ansible_memtotal_mb - ansible_memfree_mb) / ansible_memtotal_mb) * 100) | round(1) }}"
+        swap_total_mb: "{{ ansible_swaptotal_mb }}"
+        swap_used_mb: "{{ ansible_swaptotal_mb - ansible_swapfree_mb }}"
+
+    - name: Print report
+      ansible.builtin.debug:
+        msg: |
+          ══════════════════════════════════════════════════════
+           HOST: {{ inventory_hostname }} ({{ ansible_host }})
+           OS:   {{ ansible_distribution }} {{ ansible_distribution_version }}
+          ═���════════════════════════════════════════════════════
+           RAM:  {{ mem_used_mb }}MB / {{ mem_total_mb }}MB ({{ mem_pct }}%)
+           SWAP: {{ swap_used_mb }}MB / {{ swap_total_mb }}MB
+          ────���─────────────────────────────────��───────────────
+           DISK USAGE:
+          {{ disk_usage.stdout }}
+          ══════════════════════════════════════════════════════
+
+    - name: Warn on high disk usage (>85%)
+      ansible.builtin.debug:
+        msg: "WARNING: {{ item.split()[-1] }} usage on {{ item.split()[0] }} of {{ inventory_hostname }}"
+      loop: "{{ disk_usage.stdout_lines }}"
+      when: (item.split()[-1] | replace('%','') | int) > 85