Stowage/rest-server
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Add Prometheus metrics

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Exposes a few metrics for Prometheus under /metrics if started with --prometheus.

Example:

    # HELP rest_server_blob_read_bytes_total Total number of bytes read from blobs
    # TYPE rest_server_blob_read_bytes_total counter
    rest_server_blob_read_bytes_total{repo="test",type="data"} 2.13557024e+09
    rest_server_blob_read_bytes_total{repo="test",type="index"} 1.198653e+06
    rest_server_blob_read_bytes_total{repo="test",type="keys"} 5388
    rest_server_blob_read_bytes_total{repo="test",type="locks"} 1975
    rest_server_blob_read_bytes_total{repo="test",type="snapshots"} 10018
    # HELP rest_server_blob_read_total Total number of blobs read
    # TYPE rest_server_blob_read_total counter
    rest_server_blob_read_total{repo="test",type="data"} 3985
    rest_server_blob_read_total{repo="test",type="index"} 21
    rest_server_blob_read_total{repo="test",type="keys"} 12
    rest_server_blob_read_total{repo="test",type="locks"} 12
    rest_server_blob_read_total{repo="test",type="snapshots"} 32
    # HELP rest_server_blob_write_bytes_total Total number of bytes written to blobs
    # TYPE rest_server_blob_write_bytes_total counter
    rest_server_blob_write_bytes_total{repo="test",type="data"} 1.063726179e+09
    rest_server_blob_write_bytes_total{repo="test",type="index"} 395586
    rest_server_blob_write_bytes_total{repo="test",type="locks"} 1975
    rest_server_blob_write_bytes_total{repo="test",type="snapshots"} 1933
    # HELP rest_server_blob_write_total Total number of blobs written
    # TYPE rest_server_blob_write_total counter
    rest_server_blob_write_total{repo="test",type="data"} 226
    rest_server_blob_write_total{repo="test",type="index"} 6
    rest_server_blob_write_total{repo="test",type="locks"} 12
    rest_server_blob_write_total{repo="test",type="snapshots"} 6
This commit is contained in:
Konrad Wojas 2017-10-24 23:03:50 +08:00 • committed by Zlatko Čalušić
parent 526a2b3837
commit ca0e09261f
4 changed files with 69 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

6
mux.go
View file

@ -8,6 +8,7 @@ import (
goji "goji.io"
"github.com/gorilla/handlers"
"github.com/prometheus/client_golang/prometheus/promhttp"
"goji.io/pat"
)
@ -19,6 +20,7 @@ var Config = struct {
CPUProfile string
Debug bool
AppendOnly bool
Prometheus bool
}{
Path: "/tmp/restic",
Listen: ":8000",
@ -53,6 +55,10 @@ func NewMux() *goji.Mux {
mux.Use(logHandler)
}
if Config.Prometheus {
mux.Handle(pat.Get("/metrics"), promhttp.Handler())
}
mux.HandleFunc(pat.Head("/config"), CheckConfig)
mux.HandleFunc(pat.Head("/:repo/config"), CheckConfig)
mux.HandleFunc(pat.Get("/config"), GetConfig)