Graham McIntire
abb7e90d2d
External Prometheus at 10.0.15.31 already runs the kubernetes-pods job in prometheus.yml.j2; pods need prometheus.io/scrape + port + path + job annotations to be picked up. The prop-metrics NodePort selector also tightened to tier=hot so backfill (PHX_SERVER=false, no :5000 listener) is excluded from the scrape pool.
29 lines
935 B
YAML
29 lines
935 B
YAML
apiVersion: v1
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kind: Service
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metadata:
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name: prop-metrics
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namespace: prop
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labels:
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app: prop
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purpose: metrics
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spec:
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type: NodePort
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# Don't pin scrapes to a single pod — we want Prometheus to sample
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# across all replicas so BEAM-level metrics (memory, scheduler util)
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# stay representative. DB-backed gauges (oban queue depth) are
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# identical across pods so per-scrape rotation is fine there too.
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sessionAffinity: None
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selector:
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app: prop
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# Restrict to hot pods. prop-backfill carries the same `app: prop`
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# label but runs PHX_SERVER=false (no listener on :5000), so an
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# unscoped selector lands ~50% of scrapes on a closed port.
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tier: hot
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ports:
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- name: metrics
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# Fixed high-numbered NodePort so the external Prometheus at
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# 10.0.15.31 can scrape `nodeIP:30090` without needing k8s SD.
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nodePort: 30090
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port: 5000
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targetPort: 5000
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protocol: TCP
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