Add new roles for monitoring

ansible/roles/prometheus/templates/prometheus.config.j2

@@ -0,0 +1,70 @@
+{{ ansible_managed | comment }}
+
+# Global configuration
+global:
+  scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
+  evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
+  # scrape_timeout is set to the global default (10s).
+
+# Alertmanager configuration
+alerting:
+  alertmanagers:
+    - static_configs:
+        - targets:
+           - localhost:9093
+
+# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
+rule_files:
+   - "{{ alertmanager_rules }}/prometheus.rules.yml"
+   - "{{ alertmanager_rules }}/blackbox.rules.yml"
+   - "{{ alertmanager_rules }}/hosts.rules.yml"
+
+# A scrape configuration containing exactly one endpoint to scrape:
+
+#scrape_config_files:
+#{% for item in scrape_files %}
+#  - "{{ item }}"
+#{% endfor %}
+
+scrape_configs:
+  - job_name: "prometheus"
+    static_configs:
+      - targets: ["localhost:9090"]
+
+{% if blackbox %}
+  - job_name: "blackbox"
+    metrics_path: /probe
+    params:
+      module: [http_2xx]
+    scrape_interval: 5s
+    static_configs:
+      - targets:
+          - https://labolyon.fr
+          - https://mail.labolyon.fr
+          - https://wiki.labolyon.fr
+          - https://git.labolyon.fr
+    relabel_configs:
+       - source_labels: [__address__]
+         target_label: __param_target
+       - source_labels: [__param_target]
+         target_label: target
+       - target_label: __address__
+         replacement: 127.0.0.1:9115  # The blackbox exporter's real hostname:port.
+{% else %}
+
+  - job_name: "linux-nodes"
+    static_configs:
+      - targets:
+         - blogs.labolyon.dn42:9100
+         - dn42-router.labolyon.dn42:9100
+         - git.labolyon.dn42:9100
+         - labolyon-fr.labolyon.dn42:9100
+         - lolix-rs1.labolyon.dn42:9100
+         - mail.labolyon.dn42:9100
+         - matrix.labolyon.dn42:9100
+         - monitoring.labolyon.dn42:9100
+         - mosquitto.labolyon.dn42:9100
+         - radius.labolyon.dn42:9100
+         - reverse-proxy.labolyon.dn42:9100
+         - wikilabolyon.dn42:9100
+{% endif %}