feat: add cluster_name and cluster_peer labels to Prometheus metrics#436
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feat: add cluster_name and cluster_peer labels to Prometheus metrics#436
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Add cluster_name and cluster_peer as external_labels in Prometheus config so metrics sent via remote_write include the same identity labels already used by Alloy for logs.
Karthiksrinatha
approved these changes
Mar 6, 2026
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Summary
cluster_nameandcluster_peerasexternal_labelsin Prometheus configremote_writeCLUSTER_NAMEandCLUSTER_PEERenv vars to the Prometheus container in docker-composerun.shviased(same pattern as existing vars)Changes
prometheus/prometheus.yml.example— addcluster_nameandcluster_peerexternal labelsprometheus/run.sh— render$CLUSTER_NAMEand$CLUSTER_PEERvia seddocker-compose.yml— passCLUSTER_NAMEandCLUSTER_PEERenv vars to prometheus service