Added Prometheus and Grafana config

inventory/group_vars/monitoring_server.yml

@@ -0,0 +1,6 @@
+---
+
+hosts_to_monitor:
+  - "localhost:9100"
+  - "10.7.10.96:9100"
+  - "10.7.10.97:9100"

inventory/hosts.ini

@@ -21,6 +21,9 @@ lb-v3 ansible_host=lb-v3.int.metaunix.net
 [kickstart_servers]
 ks-v2 ansible_host=ks-v2.int.metaunix.net
 
+[monitoring_server]
+pi5b2g ansible_host=10.7.10.106
+
 [munin_masters]
 munin-v1 ansible_host=munin-v1.int.metaunix.net
 

playbooks/exporters.yml

@@ -0,0 +1,10 @@
+---
+
+- name: Deploy node_exporter across all fleet hosts
+  hosts: all
+  become: true
+
+  roles:
+    - role: prometheus.prometheus.node_exporter
+      vars:
+        node_exporter_web_listen_address: "0.0.0.0:9100"

playbooks/grafana.yml

@@ -0,0 +1,71 @@
+---
+
+- name: Deploy standalone Prometheus on Raspberry Pi 5
+  hosts: monitoring_server
+  become: true
+
+  vars:
+    # Bind to all interfaces on default port
+    prometheus_web_listen_address: "0.0.0.0:9090"
+
+    # Reduce retention to save storage/microSD wear (default is 15d)
+    prometheus_storage_retention: "60d"
+
+    # Self-scrape configuration
+    prometheus_scrape_configs:
+      - job_name: "prometheus"
+        metrics_path: "/metrics"
+        static_configs:
+          - targets:
+              - "localhost:9090"
+      - job_name: "node_exporter"
+        metrics_path: "/metrics"
+        static_configs:
+          - targets:
+              - "localhost:9100"
+              - "10.7.10.96:9100"
+              - "10.7.10.97:9100"
+
+  roles:
+    - role: prometheus.prometheus.prometheus
+
+- name: Deploy Grafana on Raspberry Pi 5
+  hosts: monitoring_server
+  become: true
+
+  pre_tasks:
+    - name: Ensure python3-debian is present for deb822 repository support
+      ansible.builtin.apt:
+        name: python3-debian
+        state: present
+        update_cache: true
+
+  roles:
+    - role: grafana.grafana.grafana
+      vars:
+        grafana_version: "latest"
+
+        # All grafana.ini sections now live under grafana_ini
+        grafana_ini:
+          server:
+            http_port: 3000
+            http_addr: "0.0.0.0"
+          security:
+            admin_user: "admin"
+            admin_password: "LimpBizkit6"
+          analytics:
+            reporting_enabled: false
+            check_for_updates: false
+
+        # Provision datasources directly
+        grafana_datasources:
+          - name: "Prometheus"
+            type: "prometheus"
+            access: "proxy"
+            url: "http://localhost:9090"
+            isDefault: true
+            editable: true
+
+        # Optional: install community plugins automatically
+        # grafana_plugins:
+        #   - grafana-piechart-panel

playbooks/site.yml

@@ -10,6 +10,10 @@
   import_playbook: nfs_client.yml
 - name: Packages
   import_playbook: packages.yml
+- name: Grafana / Prometheus
+  import_playbook: grafana.yml
+- name: node_exporter and others for Prometheus
+  import_playbook: exporters.yml
 - name: Munin
   import_playbook: munin.yml
 - name: Gitea

requirements.yml

@@ -7,6 +7,10 @@ collections:
     version: 5.3.0
   - name: containers.podman
     version: 1.20.2
+  - name: grafana.grafana
+    version: 6.1.0
+  - name: prometheus.prometheus
+    version: 0.30.1
 
 roles:
   - name: gballan.sssd