From 31cce0e0219a77bfc68bfd6bc18b6e479aa3f99f Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@spreadspace.org>
Date: Wed, 20 Dec 2023 18:47:22 +0100
Subject: add monitoring for mosquitto

---
 roles/monitoring/prometheus/server/defaults/main/main.yml     |  1 +
 .../prometheus/server/defaults/main/rules_mosquitto.yml       | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 roles/monitoring/prometheus/server/defaults/main/rules_mosquitto.yml

(limited to 'roles/monitoring/prometheus/server/defaults')

diff --git a/roles/monitoring/prometheus/server/defaults/main/main.yml b/roles/monitoring/prometheus/server/defaults/main/main.yml
index 7f78d5aa..9f867568 100644
--- a/roles/monitoring/prometheus/server/defaults/main/main.yml
+++ b/roles/monitoring/prometheus/server/defaults/main/main.yml
@@ -40,6 +40,7 @@ prometheus_server_rules:
   modbus/probe: "{{ prometheus_server_rules_modbus__probe + prometheus_server_rules_modbus__probe_extra }}"
   nftables: "{{ prometheus_server_rules_nftables + prometheus_server_rules_nftables_extra }}"
   whawty-nginx-sso: "{{ prometheus_server_rules_whawty_nginx_sso + prometheus_server_rules_whawty_nginx_sso_extra }}"
+  mosquitto: "{{ prometheus_server_rules_mosquitto + prometheus_server_rules_mosquitto_extra }}"
 
 # prometheus_server_alertmanager:
 #   url: "127.0.0.1:9093"
diff --git a/roles/monitoring/prometheus/server/defaults/main/rules_mosquitto.yml b/roles/monitoring/prometheus/server/defaults/main/rules_mosquitto.yml
new file mode 100644
index 00000000..538a5e44
--- /dev/null
+++ b/roles/monitoring/prometheus/server/defaults/main/rules_mosquitto.yml
@@ -0,0 +1,11 @@
+---
+prometheus_server_rules_mosquitto_extra: []
+prometheus_server_rules_mosquitto:
+  - alert: MosquittoBrokerUnreachable
+    expr: broker_uptime == 0
+    for: 0m
+    labels:
+      severity: critical
+    annotations:
+      summary: Unable to scrape mosquitto (instance {{ '{{' }} $labels.instance {{ '}}' }})
+      description: "The uptime of the mosquitto process is reported as 0 - this is likely because the exporter has lost it's connection to the broker.\n  VALUE = {{ '{{' }} $value {{ '}}' }}\n  LABELS = {{ '{{' }} $labels {{ '}}' }}"
-- 
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