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Merge pull request #419 from neeral/invalid-prefix 

Do not sanitize prefix in Graphite bridge
This commit is contained in:
Björn Rabenstein 2018-06-23 17:59:54 +02:00 committed by GitHub
parent faf4ec335f fe6c0fa342
commit 77e8f2ddcf
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 38 additions and 20 deletions
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6
prometheus/graphite/bridge.go
View File

@ -191,9 +191,11 @@ func writeMetrics(w io.Writer, mfs []*dto.MetricFamily, prefix string, now model
buf := bufio.NewWriter(w)
for _, s := range vec {
if err := writeSanitized(buf, prefix); err != nil {
for _, c := range prefix {
if _, err := buf.WriteRune(c); err != nil {
return err
}
}
if err := buf.WriteByte('.'); err != nil {
return err
}
@ -273,7 +275,7 @@ func replaceInvalidRune(c rune) rune {
if c == ' ' {
return '.'
}
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == ':' || (c >= '0' && c <= '9')) {
if !((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c == '_' || c == ':' || c == '-' || (c >= '0' && c <= '9')) {
return '_'
}
return c

46
prometheus/graphite/bridge_test.go
View File

@ -3,6 +3,7 @@ package graphite
import (
"bufio"
"bytes"
"fmt"
"io"
"log"
"net"
@ -25,6 +26,7 @@ func TestSanitize(t *testing.T) {
{in: "hE/l1o", out: "hE_l1o"},
{in: "he,*ll(.o", out: "he_ll_o"},
{in: "hello_there%^&", out: "hello_there_"},
{in: "hell-.o", out: "hell-_o"},
}
var buf bytes.Buffer
@ -72,27 +74,41 @@ func TestWriteSummary(t *testing.T) {
t.Fatalf("error: %v", err)
}
testCases := []struct {
prefix string
}{
{prefix: "prefix"},
{prefix: "pre/fix"},
{prefix: "pre.fix"},
}
const want = `%s.name.constname.constvalue.labelname.val1.quantile.0_5 20 1477043
%s.name.constname.constvalue.labelname.val1.quantile.0_9 30 1477043
%s.name.constname.constvalue.labelname.val1.quantile.0_99 30 1477043
%s.name_sum.constname.constvalue.labelname.val1 60 1477043
%s.name_count.constname.constvalue.labelname.val1 3 1477043
%s.name.constname.constvalue.labelname.val2.quantile.0_5 30 1477043
%s.name.constname.constvalue.labelname.val2.quantile.0_9 40 1477043
%s.name.constname.constvalue.labelname.val2.quantile.0_99 40 1477043
%s.name_sum.constname.constvalue.labelname.val2 90 1477043
%s.name_count.constname.constvalue.labelname.val2 3 1477043
`
for i, tc := range testCases {
now := model.Time(1477043083)
var buf bytes.Buffer
err = writeMetrics(&buf, mfs, "prefix", now)
err = writeMetrics(&buf, mfs, tc.prefix, now)
if err != nil {
t.Fatalf("error: %v", err)
}
want := `prefix.name.constname.constvalue.labelname.val1.quantile.0_5 20 1477043
prefix.name.constname.constvalue.labelname.val1.quantile.0_9 30 1477043
prefix.name.constname.constvalue.labelname.val1.quantile.0_99 30 1477043
prefix.name_sum.constname.constvalue.labelname.val1 60 1477043
prefix.name_count.constname.constvalue.labelname.val1 3 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_5 30 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_9 40 1477043
prefix.name.constname.constvalue.labelname.val2.quantile.0_99 40 1477043
prefix.name_sum.constname.constvalue.labelname.val2 90 1477043
prefix.name_count.constname.constvalue.labelname.val2 3 1477043
`
if got := buf.String(); want != got {
t.Fatalf("wanted \n%s\n, got \n%s\n", want, got)
wantWithPrefix := fmt.Sprintf(want,
tc.prefix, tc.prefix, tc.prefix, tc.prefix, tc.prefix,
tc.prefix, tc.prefix, tc.prefix, tc.prefix, tc.prefix,
)
if got := buf.String(); wantWithPrefix != got {
t.Fatalf("test case index %d: wanted \n%s\n, got \n%s\n", i, wantWithPrefix, got)
}
}
}