r/PrometheusMonitoring is a subreddit with 13k members. The most common kinds of discussions are solution requests and advice requests, and the community frequently discusses prometheus, metrics, kubernetes, monitoring, and alertmanager.
Prometheus Monitoring subreddit
Popular Themes in r/PrometheusMonitoring
#1
Solution Requests
: "promcap, cap metric cardinality in-process, before a runaway label OOMs your stack"
40 posts
#2
Advice Requests
: "Question: Prometheus Internal or External to K8s Clusters?"
10 posts
#3
Ideas
: "I built a Blackbox exporter but lite using Bash"
10 posts
#4
Self-Promotion
: "I built a tool that finds Prometheus metrics nobody is actually querying and generates drop rules to clean them up"
9 posts
#5
Pain & Anger
: "Monitoring my homelab is more work than running the homelab itself"
7 posts
#6
News
: "Tried the new webhook parameter support in Alertmanager 0.32 - pretty useful"
3 posts
#7
Opportunities
: "Building a simple GCP ecosystem (Terraform + ArgoCD + Observability) feedback welcome"
1 post
Popular Topics in r/PrometheusMonitoring
#1
Prometheus
: "I built a tool that finds Prometheus metrics nobody is actually querying and generates drop rules to clean them up"
45 posts
#2
Metrics
: "I built a tool that finds Prometheus Metrics nobody is actually querying and generates drop rules to clean them up"
12 posts
#3
Kubernetes
: "I built a Prometheus unused-metric auditor and need help deciding how it should run in Kubernetes"
8 posts
#4
Monitoring
: "Alert fatigue is starting to defeat the purpose of Monitoring"
8 posts
#5
Alertmanager
: "Tried the new webhook parameter support in Alertmanager 0.32 - pretty useful"
6 posts
#6
Grafana
: "Grafana dashboard for Claude Code metrics: consumes OTLP, queries in PromQL"
6 posts
#7
Prometheus Alerts
: "Built a small service that enriches Prometheus Alerts with labels from Kubernetes/HTTP/files before they hit Alertmanager — curious if this solves a problem anyone else has"
3 posts
#8
Tool
: "I built a Tool that finds Prometheus metrics nobody is actually querying and generates drop rules to clean them up"
3 posts
#9
Observability
: "Observability solution for high-volume data sync system?"
3 posts
#10
Alerts
: "Remove PVC from Alerts with label"
3 posts
Member Growth in r/PrometheusMonitoring
Yearly
+2k members(17.1%)
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Last updated: August 23, 2026