Add special handling for Prometheus Watchdog alert

- Treat firing Watchdog as OK status to confirm Alertmanager is working
- Treat absent/non-firing Watchdog as CRITICAL to alert on Alertmanager issues
- Add comprehensive tests for both scenarios

1 files changed, 27 insertions, 0 deletions

diff --git a/report.txt b/report.txt
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+GOGIOS Report [C:2 W:2 U:0 S:0 OK:1]
+
+This is the recent Gogios report!
+
+# Alerts with status changed:
+
+UNKNOWN->CRITICAL: Prometheus: KubeProxyDown: KubeProxyDown [critical]: Target disappeared from Prometheus target discovery.
+UNKNOWN->CRITICAL: Prometheus: KubeSchedulerDown: KubeSchedulerDown [critical]: Target disappeared from Prometheus target discovery.
+
+UNKNOWN->WARNING: Prometheus: TargetDown: TargetDown [warning]: One or more targets are unreachable.
+UNKNOWN->WARNING: Prometheus: Watchdog: Watchdog [none]: An alert that should always be firing to certify that Alertmanager is working properly.
+
+UNKNOWN->OK: localhost ping: OK: localhost is alive
+
+# Unhandled alerts:
+
+CRITICAL: Prometheus: KubeProxyDown: KubeProxyDown [critical]: Target disappeared from Prometheus target discovery.
+CRITICAL: Prometheus: KubeSchedulerDown: KubeSchedulerDown [critical]: Target disappeared from Prometheus target discovery.
+
+WARNING: Prometheus: TargetDown: TargetDown [warning]: One or more targets are unreachable.
+WARNING: Prometheus: Watchdog: Watchdog [none]: An alert that should always be firing to certify that Alertmanager is working properly.
+
+# Stale alerts:
+
+There are no stale alerts...
+
+Have a nice day!