FEATURE: basic maintanance routines added: internet connection, disk space

roles/1_common_healthcheck/files/ca.pem

@@ -0,0 +1,31 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----

roles/1_common_healthcheck/tasks/main.yml

@@ -0,0 +1,38 @@
+---
+- name: Internet connection test block
+  block:
+    - name: Test reachability to ya.ru
+      become: yes # Usually it's not necessary, but sometimes there are some wierd issues with ping, especially on Alpine 
+      shell: ping -c 5 ya.ru > /dev/null
+      changed_when: false   # This task does not change the system
+  
+  rescue:
+    # This won't work for now. CA certificate reissuing is required!git 
+    - name: Create a test file
+      become: no
+      ansible.builtin.uri:
+        url: "{{ ha_addr }}/api/webhook/{{ ha_webhook_token }}"
+        ca_path: ../files/ca.pem
+      delegate_to: 127.0.0.1
+      # TODO: REMOVE THIS AFTER REISSUING CA CERTIFICATE!
+      failed_when: false
+
+- name: Disk free space test block
+  block:
+    - name: Test free disk space in root
+      become: no
+      shell: df -h / | tail -1 | awk '{gsub(/%/, "", $5); print $5}' 
+      register: result
+      failed_when: result.stdout | int > 85
+      changed_when: false   # This task does not change the system
+  
+  rescue:
+    - name: Notify with ntfy
+      become: no
+      ansible.builtin.command: |
+        curl -H "Authorization: Bearer {{ ntfy_topic_token }}" \
+        -d "{{ ansible_facts['hostname'] }}: Disk space is low" \
+        {{ ntfy_topic }}
+      delegate_to: 127.0.0.1 
+      failed_when: false 
+      changed_when: false   # This task does not change the system