If I run those tests, I get an error saying describing exactly what the
problem is:
root@prometheus:~# /opt/prometheus/promtool test rules
replicas_mismatch_test.yaml
Unit Testing: replicas_mismatch_test.yaml
FAILED:
alertname: KubernetesDeploymentReplicasMismatch-authproxy, time: 20m,
*exp*:[
0:
Labels:{alertname="KubernetesDeploymentReplicasMismatch-authproxy",
job="prometheus", namespace="auth-proxy", severity="critical"}
* Annotations:{description="YaRD_Kubernetes Deployment
Replicas Mismatch in authproxy namespace from 11 min getting alert",
summary="Kube_replicaset_spec_replicas_authproxy missmatches"}*
],
*got*:[
0:
Labels:{alertname="KubernetesDeploymentReplicasMismatch-authproxy",
job="prometheus", namespace="auth-proxy", severity="critical"}
* Annotations:{description="Deployment Replicas mismatch\n
VALUE = 5\n LABELS = map[__name__:kube_replicaset_spec_replicas
job:prometheus namespace:auth-proxy]", summary="Kubernetes Deployment
replicas mismatch (instance )"}*
]
That's very clear. Notice how "exp" (expected) is different to "got" (what
the alerting rule actually produced). You can either fix the "exp" to
match the annotations generated by the alerting rule:
exp_annotations:
summary: "Kubernetes Deployment replicas
mismatch (instance )"
description: "Deployment Replicas mismatch\n
VALUE = 5\n LABELS = map[__name__:kube_replicaset_spec_replicas
job:prometheus namespace:auth-proxy]"
(Notice that the instance in the summary is blank, because you didn't set
an instance label in your test data).
Or you can change the alerting rules themselves to give the annotations
that you expect in your test. That's the whole point of testing - to see
that what you generate is what you expect.
Aside: I see no point in putting LABELS in an annotation. They are already
part of the alert. It only duplicates information, and makes the alert
harder to understand and harder to test.
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