# Discourse Prometheus 404 metrics for Grafana
**URL:** https://meta.discourse.org/t/discourse-prometheus-404-metrics-for-grafana/386221
**Category:** Support
**Tags:** prometheus
**Created:** [20 באוקטובר, 2025, 6:07pm UTC](https://meta.discourse.org/t/discourse-prometheus-404-metrics-for-grafana/386221 "2025-10-20T18:07:05Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@DevTeVe](https://meta.discourse.org/u/DevTeVe)
#### Post date: [20 באוקטובר, 2025, 6:07pm UTC](https://meta.discourse.org/t/discourse-prometheus-404-metrics-for-grafana/386221/1 "2025-10-20T18:07:05Z")
Continuing the discussion from [Discourse Prometheus](https://meta.discourse.org/t/discourse-prometheus/72666/104):
Not sure what’s happening but this integration is not working anymore. I couldn’t get the dashboard in grafana to display anything… the `/metrics` does return something but anything beyond that does not really work
Many errors like the one below
```plaintext
Started GET "/metrics/api/v1/label/instance/values?limit=40000&start=1760980620&end=1760982480&match%5B%5D=discourse_page_views" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Started GET "/metrics/api/v1/label/job/values?limit=40000&start=1760980620&end=1760982480&match%5B%5D=discourse_page_views%7B%7D" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Rendered layout layouts/no_ember.html.erb (Duration: 21.1ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 26.0ms | GC: 0.0ms)
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Rendered layout layouts/no_ember.html.erb (Duration: 19.8ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 28.2ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 34.6ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 44.4ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 41.7ms | GC: 0.0ms)
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:07 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:08 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:08 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:08 +0000
Rendered layout layouts/no_ember.html.erb (Duration: 23.6ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 24.9ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 19.9ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 21.6ms | GC: 0.0ms)
Started GET "/metrics/api/v1/label/job/values?limit=40000&start=1760980620&end=1760982480&match%5B%5D=discourse_page_views%7B%7D" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Started GET "/metrics/api/v1/label/instance/values?limit=40000&start=1760980620&end=1760982480&match%5B%5D=discourse_page_views" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Rendered layout layouts/no_ember.html.erb (Duration: 19.5ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 20.9ms | GC: 0.0ms)
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Started POST "/metrics/api/v1/query_range" for 16.63.57.20 at 2025-10-20 17:47:37 +0000
Rendered layout layouts/no_ember.html.erb (Duration: 22.4ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 22.0ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 40.0ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 37.0ms | GC: 0.0ms)
Rendered layout layouts/no_ember.html.erb (Duration: 24.8ms | GC: 1.6ms)
```
---
### Author:  [@DevTeVe](https://meta.discourse.org/u/DevTeVe)
#### Post date: [22 באוקטובר, 2025, 8:01am UTC](https://meta.discourse.org/t/discourse-prometheus-404-metrics-for-grafana/386221/2 "2025-10-22T08:01:06Z")
I have managed to make this work. My problems were:
1. My instance redirects to `https`
2. The default grafana configuration for `alloy` was trying to reach localhost:80 (_if you don’t know, `alloy` is a prometheus-like server that grafana spins and reads `/metrics` to expose them to grafana)_
this is what my config looks like in case it helps anyone
```plaintext
... removed the part that's auto generated when installing alloy ...
discovery.relabel "metrics_integrations_integrations_discourse" {
targets = [{
__address__ = "your.domain.com", # <--- THIS IS A CHANGE I DID
__scheme__ = "https", # <--- THIS IS A CHANGE I DID
}]
rule {
target_label = "instance"
replacement = constants.hostname
}
}
prometheus.scrape "metrics_integrations_integrations_discourse" {
targets = discovery.relabel.metrics_integrations_integrations_discourse.output
forward_to = [prometheus.relabel.metrics_integrations_integrations_discourse.receiver]
job_name = "integrations/discourse"
tls_config {
insecure_skip_verify = true # <--- THIS IS A CHANGE I DID
}
}
prometheus.relabel "metrics_integrations_integrations_discourse" {
forward_to = [prometheus.remote_write.metrics_service.receiver]
rule {
source_labels = [" __name__"]
regex = "up|discourse_active_app_reqs|discourse_http_duration_seconds|discourse_http_requests|discourse_page_views|discourse_queued_app_reqs|discourse_rss|discourse_scheduled_job_count|discourse_scheduled_job_duration_seconds|discourse_sidekiq_job_count|discourse_sidekiq_job_duration_seconds|discourse_sidekiq_jobs_enqueued|discourse_v8_used_heap_size"
action = "keep"
}
}
```
with this grafana started getting data…
Don’t forget to set `DISCOURSE_PROMETHEUS_TRUSTED_IP_ALLOWLIST_REGEX`
I searched for grafana’s IPs and added them all as a long line, there may be a better or smarter way but I couldn’t find it lol
here’s an example of adding multiple ips
```plaintext
DISCOURSE_PROMETHEUS_TRUSTED_IP_ALLOWLIST_REGEX: "^(localhost|127\\.0\\.0\\.1|::1)$
```
---
### Author:  [@tgxworld](https://meta.discourse.org/u/tgxworld)
#### Post date: [29 באוקטובר, 2025, 8:01am UTC](https://meta.discourse.org/t/discourse-prometheus-404-metrics-for-grafana/386221/3 "2025-10-29T08:01:42Z")
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