feat: manage grafana content as code with fast dashboard workflow

ansible/roles/observability-content/tasks/main.yml

@@ -0,0 +1,37 @@
+---
+- name: Ensure observability namespace exists
+  command: kubectl create namespace {{ observability_namespace }}
+  register: create_observability_ns
+  failed_when: create_observability_ns.rc != 0 and "AlreadyExists" not in create_observability_ns.stderr
+  changed_when: create_observability_ns.rc == 0
+
+- name: Wait for Grafana deployment rollout
+  command: kubectl -n {{ observability_namespace }} rollout status deployment/kube-prometheus-stack-grafana --timeout=5m
+  changed_when: false
+
+- name: Write Grafana datasources ConfigMap
+  template:
+    src: grafana-datasources.yaml.j2
+    dest: /tmp/grafana-datasources.yaml
+    mode: "0644"
+
+- name: Apply Grafana datasources ConfigMap
+  command: kubectl apply -f /tmp/grafana-datasources.yaml
+  changed_when: true
+
+- name: Write Grafana dashboard ConfigMap
+  template:
+    src: grafana-dashboard-k8s-overview.yaml.j2
+    dest: /tmp/grafana-dashboard-k8s-overview.yaml
+    mode: "0644"
+
+- name: Apply Grafana dashboard ConfigMap
+  command: kubectl apply -f /tmp/grafana-dashboard-k8s-overview.yaml
+  changed_when: true
+
+- name: Show Grafana content provisioning summary
+  debug:
+    msg: |
+      Grafana content applied.
+      Datasources ConfigMap: {{ grafana_datasource_configmap_name }}
+      Dashboard ConfigMap: {{ grafana_dashboard_configmap_name }}