Initial VPS operations handbook

2026-08-03 12:26:42 +08:00
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+---
+# Read-only gate before a K3s or Matrix change.
+- name: Validate Matrix K3s host readiness without changes
+  hosts: matrix
+  become: true
+  gather_facts: true
+  roles:
+    - role: k3s_preflight
+      tags: [matrix, preflight, read_only]