[!] add Prometheus exporter as a pgwatch source - #1405

Merged

pashagolub merged 33 commits into

masterfrom

prom-sources

Aug 6, 2026

Commits on Aug 6, 2026

add spec for prometheus sources
pashagolub
committed
5a60a35
update spec with a simpler metric definitions
pashagolub
committed
c5d7482
add spec to refactor SourceConn as interface
pashagolub
committed
bbd78d4
rebase specs on batch metric fetching
pashagolub
committed
118440c
add `NewFakeExporter()` to `testutil`
pashagolub
committed
599ea15
extract `SourceConn` interface and `DbConn` struct
pashagolub
committed
5bb2f03
add `prometheus` source kind
pashagolub
committed
867c3ed
implement `PromConn.Connect()`, `Ping()`, `FetchRuntimeInfo()`
pashagolub
committed
f811f4a
use `Ping()` call in ping command
pashagolub
committed
27a304d
implement `ScrapeAll` and extend `MeasurementEnvelope` with `SourceKind`
pashagolub
committed
15efc0d
make `Reaper` an interface and `reaper` a struct implementing it
pashagolub
committed
869350d
remove `sourceReapers`, use `cancelFuncs` only
pashagolub
committed
fc414ab
rename `SourceReaper` to `DbConnReaper`
pashagolub
committed
8cab1c8
implement `PromReaper`
pashagolub
committed
716464f
move `DbConnReaper` into `database.go`
pashagolub
committed
93f14c3
rename `prom_reaper.go` to `prometheus.go`
pashagolub
committed
967ffdc
make `NewReaper` return an interface, while `newReaper` return struct
pashagolub
committed
7138fef
support prom-sourced envelopes in `PrometheusWriter`
pashagolub
committed
d076391
add `postgres-exporter-basic` preset and prometheus source example
pashagolub
committed
021b593
add "Monitoring a Prometheus Exporter" howto
pashagolub
committed
b8ff922
add `prometheus` source kind to webui
pashagolub
committed
d3114d9
add `prometheus` source kind migration for postgres sink schema
pashagolub
committed
f221d8e
use `GET` request in `PromConn.Ping()`
pashagolub
committed
e9ed463
fix `ResolveDatabases()` for Prometheus sources
pashagolub
committed
ee08943
add Prometheus sources to docker compose test instance
pashagolub
committed
78bc2b9
add "Patroni Cluster Overview" dashboards
pashagolub
committed
4dfc61c
fix schema migration tests
pashagolub
committed
9e2501f
rename `batchEntry.name` to `batchEntry.metricName` to match master
pashagolub
committed
1734b55
fix errcheck warning: discard `executeBatch` error in integration test
pashagolub
committed
4882b36
migrate patroni dashboards to v13
pashagolub
committed
7628ff3
add all Patroni metrics to patroni preset
pashagolub
committed
7d64596
add panels for all Patroni metrics
pashagolub
committed
b661947
chore
pashagolub
committed
e5f40d6

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[!] add Prometheus exporter as a pgwatch source - #1405

[!] add Prometheus exporter as a pgwatch source#1405
pashagolub merged 33 commits into
masterfrom
prom-sources

Commits on Aug 6, 2026

add spec for prometheus sources

update spec with a simpler metric definitions

add spec to refactor SourceConn as interface

rebase specs on batch metric fetching

add `NewFakeExporter()` to `testutil`

extract `SourceConn` interface and `DbConn` struct

add `prometheus` source kind

implement `PromConn.Connect()`, `Ping()`, `FetchRuntimeInfo()`

use `Ping()` call in ping command

implement `ScrapeAll` and extend `MeasurementEnvelope` with `SourceKind`

make `Reaper` an interface and `reaper` a struct implementing it

remove `sourceReapers`, use `cancelFuncs` only

rename `SourceReaper` to `DbConnReaper`

implement `PromReaper`

move `DbConnReaper` into `database.go`

rename `prom_reaper.go` to `prometheus.go`

make `NewReaper` return an interface, while `newReaper` return struct

support prom-sourced envelopes in `PrometheusWriter`

add `postgres-exporter-basic` preset and prometheus source example

add "Monitoring a Prometheus Exporter" howto

add `prometheus` source kind to webui

add `prometheus` source kind migration for postgres sink schema

use `GET` request in `PromConn.Ping()`

fix `ResolveDatabases()` for Prometheus sources

add Prometheus sources to docker compose test instance

add "Patroni Cluster Overview" dashboards

fix schema migration tests

rename `batchEntry.name` to `batchEntry.metricName` to match master

fix errcheck warning: discard `executeBatch` error in integration test

migrate patroni dashboards to v13

add all Patroni metrics to patroni preset

add panels for all Patroni metrics

chore