Automation Orchestrator install and tweaks

roles/sno_alert_tuning/tasks/main.yml

@@ -0,0 +1,19 @@
+---
+# Drop platform alerts that only fire because the cluster has a single
+# control-plane node. Uses the supported AlertRelabelConfig API rather than
+# silences (which expire) or editing cluster-monitoring-operator rules (reverted).
+
+- name: Drop single-control-plane false-positive alerts
+  kubernetes.core.k8s:
+    state: "{{ 'present' if sno_alert_tuning_dropped_alerts | length > 0 else 'absent' }}"
+    definition:
+      apiVersion: monitoring.openshift.io/v1
+      kind: AlertRelabelConfig
+      metadata:
+        name: "{{ sno_alert_tuning_config_name }}"
+        namespace: openshift-monitoring
+      spec:
+        configs:
+          - sourceLabels: [alertname]
+            regex: "{{ sno_alert_tuning_dropped_alerts | map('regex_escape') | join('|') }}"
+            action: Drop