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v0.25.7

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Mateusz Gruszczyński committed 2026-10-05 12:22:41 +02:00
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docs/PROMETHEUS.md
+15 -3
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@@ -56,7 +56,7 @@ Only `GET` on the exact configured path without a query string is accepted. A
wrong path is `404`, wrong method `405`, disallowed peer `403`, invalid/missing
required bearer `401`, and exporter concurrency exhaustion `429`.
## Coverage audit in 0.19.1
## Coverage audit in 0.25.7
The exporter represents all scalar fields currently sampled by `diagnostics::View` when available. The per-interface `network_interfaces` list added in 0.18.6 is intentionally dashboard-only so kernel-created interface names cannot create an uncontrolled Prometheus label set. RustProxy also exports the bounded operational data already available from traffic metrics, cache, vhosts, backend pools, streams, logging, GeoIP and ACME renewal observations.
@@ -72,8 +72,8 @@ The exporter represents all scalar fields currently sampled by `diagnostics::Vie
| Traffic analytics | independent live collector (`include_traffic`): capture-state gauges, per-vhost request/error/body-byte/duration totals; approximate bounded top countries; fixed User-Agent families; fixed HTTP method families; status classes; cache outcomes; serving source (`web_server`, `reverse_proxy`, `local_response`, `unresolved`); and currently configured route IDs |
| Built-in Web Server | configured Web Service count/info, PHP and directory-listing flags, vhost/route source metadata, plus actual request traffic through the shared vhost counters and Traffic serving-source metrics |
| Redirect/404 hosts | desired enable state, domain/rule counts and local-response status |
| Backends | pool readiness/policy info, bounded backend status, health/drain/backup, active work and configured request-concurrency/queue limits, requests/errors/bytes, weight, separate active/passive failure state, active/passive successes and health-failure totals, unconditional HTTP-5xx/timeout/connect/I/O/slow-response observation counters, DNS/TLS/header-timeout/read-timeout/send-timeout diagnostics, capacity rejection/queue-timeout counters, plus `passive_http_5xx_total`, `passive_timeouts_total`, `passive_connect_errors_total`, `passive_io_errors_total` and `passive_slow_total` aliases, health transitions, last status, current/EWMA latency, last-probe/failure/ejection/recovery timestamps, traffic rate, and retry attempt/success totals for ordinary vhosts |
| Docker vhosts | separate `rust_proxy_docker_vhost_*` and `rust_proxy_docker_backend_*` families: configured agents/assignments/domains, vhost traffic/status/duration plus backend readiness, health, requests/errors/bytes, latency/EWMA, separate active/passive failure state, unconditional observation counters and matching passive-health aliases, transitions and probe results |
| Backends | pool readiness/policy info, bounded backend status, health/drain/backup, active work and configured request-concurrency/queue limits, requests/errors/bytes, weight, separate active/passive failure state, active/passive successes and health-failure totals, unconditional HTTP-5xx/timeout/connect/I/O/slow-response observation counters, DNS/TLS/header-timeout/read-timeout/send-timeout diagnostics, capacity rejection/queue-timeout counters, retry attempt/success totals, upstream-client generation/current-generation requests/generation age/rotation totals, plus `passive_http_5xx_total`, `passive_timeouts_total`, `passive_connect_errors_total`, `passive_io_errors_total` and `passive_slow_total` aliases, health transitions, last status, current/EWMA latency, last-probe/failure/ejection/recovery timestamps and traffic rate for ordinary vhosts |
| Docker vhosts | separate `rust_proxy_docker_vhost_*` and `rust_proxy_docker_backend_*` families: configured agents/assignments/domains, vhost traffic/status/duration plus backend readiness, health, requests/errors/bytes, latency/EWMA, separate active/passive failure state, unconditional observation counters and matching passive-health aliases, retry attempt/success totals, upstream-client generation/current-generation requests/generation age/rotation totals, transitions and probe results |
| Streams | desired enable state, active/session/reject/error counters, bytes/packets and max connections |
| Logging | structured sink queue capacity, sent/error/drop counters plus the global live-log contention drop counter |
| TLS/ACME | configured certificate count, auto-renew flag, bounded issuer metadata, latest ACME job state, renewal check/expiry timestamps, failure count and status |
@@ -157,6 +157,18 @@ rust_proxy_docker_backend_up
rust_proxy_docker_backend_ewma_latency_seconds
```
Backend client lifecycle and retry diagnostics:
```promql
rust_proxy_backend_upstream_client_generation_requests
rust_proxy_backend_upstream_client_generation_age_seconds
rate(rust_proxy_backend_upstream_client_rotations_total[5m])
rate(rust_proxy_backend_retry_attempts_total[5m])
rate(rust_proxy_backend_retry_successes_total[5m])
```
The same fields are exported for Docker-discovered backends under the `rust_proxy_docker_backend_*` prefix.
Certificate expiry window:
```promql