feat: grafana agent deployment

!1

templates/PrometheusRule-grafana-agent.yaml

@@ -0,0 +1,23 @@
+---
+apiVersion: monitoring.coreos.com/v1
+kind: PrometheusRule
+metadata:
+  labels:
+    app.kubernetes.io/component: exporter
+    app.kubernetes.io/name: grafana-agent
+    app.kubernetes.io/part-of: {{ $.Chart.Name }}
+    app.kubernetes.io/version: {{ $.Chart.Version }}
+    app.kubernetes.io/managed-by: {{ $.Release.Service }}
+    prometheus: k8s
+    role: grafana-agent-promtail
+  name: grafana-agent
+  namespace: monitoring
+spec:
+  groups:
+  - name: grafana_agent
+    rules:
+    # - annotations:
+    #     description: "As Grafana Agent is being used, it's version is set as promtails"
+    - expr: |
+        agent_build_info
+      record: promtail_build_info