fix: restore blackbox alerting rules and rabbitmq alert size

restores blackbox alerting rules and rabbitmq alert size from
cb440e2

which appears inadvertently removed in
3dfc4af

Also, it puts back the textfile collector stuff in values.yaml for Prometheus,
inadvertently removed in the same commit, and also added by the2hill like
the stuff from cb440, but in
3d2f500

JIRA:OSPC-689

base-kustomize/prometheus/alerting_rules.yaml

@@ -46,6 +46,32 @@ additionalPrometheusRulesMap:
         annotations:
           summary: MySQL restarted (instance {{ $labels.instance }})
           description: "MySQL has just been restarted, less than one minute ago on {{ $labels.instance }}.\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
+  blackbox-alerts:
+    groups:
+      - name: Blackbox Alerts
+        rules:
+          - alert: TLS certificate expiring
+            expr: (probe_ssl_earliest_cert_expiry - time())/86400 < 60
+            labels:
+              severity: warning
+            annotations:
+              summary: "SSL certificate will expire soon on (instance {{ $labels.instance }})"
+              description: "SSL certificate expires within 60 days\n  VALUE = {{ $value }}\n  LABELS: {{ $labels }}"
+          - alert: TLS certificate expiring
+            expr: (probe_ssl_earliest_cert_expiry - time())/86400 < 30
+            labels:
+              severity: critical
+            annotations:
+              summary: "SSL certificate will expire soon on (instance {{ $labels.instance }})"
+              description: "SSL certificate expires within 30 days\n  VALUE = {{ $value }}\n  LABELS: {{ $labels }}"
+          - alert: Service Down
+            expr: probe_success == 0
+            for: 2m
+            labels:
+              severity: critical
+            annotations:
+              summary: "Service probe has failed for more than two minutes on (instance {{ $labels.instance }})"
+              description: "Service probe has failed for more than two minutes \n  LABELS: {{ $labels }}"
   volume-alerts:
     groups:
       - name: Volume Alerts

base-kustomize/prometheus/values.yaml

@@ -2016,9 +2016,16 @@ prometheus-node-exporter:
     ##
     jobLabel: node-exporter
   releaseLabel: true
+  extraHostVolumeMounts:
+    - name: text-file-collector
+      hostPath: /opt/node_exporter/textfile_collector
+      mountPath: /var/lib/node_exporter/textfile_collector
+      readOnly: true
+      mountPropagation: HostToContainer
   extraArgs:
     - --collector.filesystem.mount-points-exclude=^/(dev|proc|sys|var/lib/docker/.+|var/lib/kubelet/.+)($|/)
     - --collector.filesystem.fs-types-exclude=^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$
+    - --collector.textfile.directory=/var/lib/node_exporter/textfile_collector
   service:
     portName: http-metrics
   prometheus: