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Tag original URL for k8s services in prometheus input (#3257)

This commit is contained in:
Christian Meilke 2017-09-23 02:26:19 +02:00 committed by Daniel Nelson
parent c3bea59f3b
commit 73df179bd6
2 changed files with 8 additions and 5 deletions
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11
plugins/inputs/prometheus/prometheus.go
View File

@ -93,14 +93,15 @@ func (p *Prometheus) AddressToURL(u *url.URL, address string) string {
}
type UrlAndAddress struct {
Url string
Address string
OriginalUrl string
Url string
Address string
}
func (p *Prometheus) GetAllURLs() ([]UrlAndAddress, error) {
allUrls := make([]UrlAndAddress, 0)
for _, url := range p.Urls {
allUrls = append(allUrls, UrlAndAddress{Url: url})
allUrls = append(allUrls, UrlAndAddress{Url: url, OriginalUrl: url})
}
for _, service := range p.KubernetesServices {
u, err := url.Parse(service)
@ -114,7 +115,7 @@ func (p *Prometheus) GetAllURLs() ([]UrlAndAddress, error) {
}
for _, resolved := range resolvedAddresses {
serviceUrl := p.AddressToURL(u, resolved)
allUrls = append(allUrls, UrlAndAddress{Url: serviceUrl, Address: resolved})
allUrls = append(allUrls, UrlAndAddress{Url: serviceUrl, Address: resolved, OriginalUrl: service})
}
}
return allUrls, nil
@ -213,7 +214,7 @@ func (p *Prometheus) gatherURL(url UrlAndAddress, acc telegraf.Accumulator) erro
// Add (or not) collected metrics
for _, metric := range metrics {
tags := metric.Tags()
tags["url"] = url.Url
tags["url"] = url.OriginalUrl
if url.Address != "" {
tags["address"] = url.Address
}

2
plugins/inputs/prometheus/prometheus_test.go
View File

@ -50,6 +50,7 @@ func TestPrometheusGeneratesMetrics(t *testing.T) {
assert.True(t, acc.HasFloatField("test_metric", "value"))
assert.True(t, acc.HasTimestamp("test_metric", time.Unix(1490802350, 0)))
assert.False(t, acc.HasTag("test_metric", "address"))
assert.True(t, acc.TagValue("test_metric", "url") == ts.URL)
}
func TestPrometheusGeneratesMetricsWithHostNameTag(t *testing.T) {
@ -74,6 +75,7 @@ func TestPrometheusGeneratesMetricsWithHostNameTag(t *testing.T) {
assert.True(t, acc.HasFloatField("test_metric", "value"))
assert.True(t, acc.HasTimestamp("test_metric", time.Unix(1490802350, 0)))
assert.True(t, acc.TagValue("test_metric", "address") == tsAddress)
assert.True(t, acc.TagValue("test_metric", "url") == ts.URL)
}
func TestPrometheusGeneratesMetricsAlthoughFirstDNSFails(t *testing.T) {