I am having a problem with prometheus creating too many targets for a
specific job, and I cannot understand why I cannot get the correct number
of targets.
I have the following scrape configuration.
-
job_name: kubernetes-pods
kubernetes_sd_configs:
- {role: pod}
relabel_configs:
- {action: keep, regex: true, source_labels: [
__meta_kubernetes_pod_annotation_prometheus_io_scrape]}
- {action: replace, regex: (.+), source_labels: [
__meta_kubernetes_pod_annotation_prometheus_io_path], target_label:
__metrics_path__}
- {
source_labels: [__address__,
__meta_kubernetes_pod_annotation_prometheus_io_port],
action: replace,
regex: '([^:]+)(?::\d+)?;(\d+)',
replacement: '$1:$2',
target_label: __address__,}
}
- {action: labelmap, regex: __meta_kubernetes_pod_label_
(.+)}
- {action: replace, source_labels: [
__meta_kubernetes_namespace], target_label: kubernetes_namespace}
- {action: replace, source_labels: [
__meta_kubernetes_pod_name], target_label: kubernetes_pod_name}
- {regex: '(.*):.+', replacement: '${1}', source_labels: [
__address__], target_label: instance}
- {action: replace, source_labels: [
__meta_kubernetes_pod_label_cassandra_rook_io_cluster], target_label:
cluster}
- {action: replace, source_labels: [
__meta_kubernetes_pod_label_cassandra_rook_io_datacenter], target_label: dc}
- {action: replace, source_labels: [
__meta_kubernetes_pod_label_cassandra_rook_io_rack], target_label: rack}
This job creates 24 targets from 3 pods with 8 ports each. Each of the
pods have the following annotations.
- prometheus.io/scrape: true
- prometheus.io/port: 9180
Due to the above config, shouldn't only one target each for a total of 3
targets be created?
maybe I am understanding the role of `prometheus.io/port` ?
If anyone has any information on this I would be grateful
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