Initial Ansible automation for homelab infrastructure

ansible/roles/monitoring/templates/prometheus.yml.j2

@@ -0,0 +1,29 @@
+global:
+  scrape_interval: 15s
+  evaluation_interval: 15s
+
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets: ['localhost:9093']
+
+rule_files:
+  - /etc/prometheus/rules/*.yml
+
+scrape_configs:
+  - job_name: prometheus
+    static_configs:
+      - targets: ['localhost:9090']
+        labels:
+          instance: monitoring
+
+{% for job in prometheus_scrape_targets %}
+  - job_name: {{ job.job }}
+    static_configs:
+{% for target in job.targets %}
+      - targets: ['{{ target.address }}']
+        labels:
+          instance: {{ target.host }}
+{% endfor %}
+
+{% endfor %}