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fix inconsistent-label-cardinality for prometheus metrics: nginx_ingress_controller_requests (#8225)

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* fix inconsistent-label-cardinality

for prometheus metrics: nginx_ingress_controller_requests

* add host to collectorLabels only if metricsPerHost is true
This commit is contained in:
Endre Kovács 2022-02-13 19:33:47 +01:00 • committed by GitHub
parent 53a232f829
commit 86964b15a8
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2 changed files with 42 additions and 4 deletions
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30
internal/ingress/metric/collectors/socket_test.go
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@ -153,7 +153,35 @@ func TestCollector(t *testing.T) {
wantAfter: `
`,
},
{
name: "valid metric object should update requests metrics",
data: []string{`[{
"host":"testshop.com",
"status":"200",
"bytesSent":150.0,
"method":"GET",
"path":"/admin",
"requestLength":300.0,
"requestTime":60.0,
"upstreamName":"test-upstream",
"upstreamIP":"1.1.1.1:8080",
"upstreamResponseTime":200,
"upstreamStatus":"220",
"namespace":"test-app-production",
"ingress":"web-yml",
"service":"test-app",
"canary":""
}]`},
metrics: []string{"nginx_ingress_controller_requests"},
wantBefore: `
# HELP nginx_ingress_controller_requests The total number of client requests.
# TYPE nginx_ingress_controller_requests counter
nginx_ingress_controller_requests{canary="",controller_class="ingress",controller_namespace="default",controller_pod="pod",host="testshop.com",ingress="web-yml",method="GET",namespace="test-app-production",path="/admin",service="test-app",status="200"} 1
`,
removeIngresses: []string{"test-app-production/web-yml"},
wantAfter: `
`,
},
{
name: "valid metric object with canary information should update prometheus metrics",
data: []string{`[{