Metrics Summary

Adds a util to the e2e suite which queries prometheus at the end of the test run for alerts and metrics data. This data is then processed into markdown which is displayed to the contributor at the end of their test runs.

Signed-off-by: Daniel Franz <[email protected]>

Author: dtfranz

Makefile

@@ -272,27 +272,21 @@ test-e2e: SOURCE_MANIFEST := $(STANDARD_E2E_MANIFEST)
 test-e2e: KIND_CLUSTER_NAME := operator-controller-e2e
 test-e2e: GO_BUILD_EXTRA_FLAGS := -cover
 test-e2e: COVERAGE_NAME := e2e
-test-e2e: run image-registry prometheus e2e e2e-metrics e2e-coverage kind-clean #HELP Run e2e test suite on local kind cluster
+test-e2e: run image-registry prometheus e2e e2e-coverage kind-clean #HELP Run e2e test suite on local kind cluster
 
 .PHONY: test-experimental-e2e
 test-experimental-e2e: SOURCE_MANIFEST := $(EXPERIMENTAL_E2E_MANIFEST)
 test-experimental-e2e: KIND_CLUSTER_NAME := operator-controller-e2e
 test-experimental-e2e: GO_BUILD_EXTRA_FLAGS := -cover
 test-experimental-e2e: COVERAGE_NAME := experimental-e2e
-test-experimental-e2e: run image-registry prometheus experimental-e2e e2e e2e-metrics e2e-coverage kind-clean #HELP Run experimental e2e test suite on local kind cluster
+test-experimental-e2e: run image-registry prometheus experimental-e2e e2e e2e-coverage kind-clean #HELP Run experimental e2e test suite on local kind cluster
 
 .PHONY: prometheus
 prometheus: PROMETHEUS_NAMESPACE := olmv1-system
 prometheus: PROMETHEUS_VERSION := v0.83.0
 prometheus: #EXHELP Deploy Prometheus into specified namespace
 	./hack/test/install-prometheus.sh $(PROMETHEUS_NAMESPACE) $(PROMETHEUS_VERSION) $(KUSTOMIZE) $(VERSION)
 
-# The output alerts.out file contains any alerts, pending or firing, collected during a test run in json format.
-.PHONY: e2e-metrics
-e2e-metrics: ALERTS_FILE_PATH := $(if $(ARTIFACT_PATH),$(ARTIFACT_PATH),.)/alerts.out
-e2e-metrics: #EXHELP Request metrics from prometheus; place in ARTIFACT_PATH if set
-	curl -X GET http://localhost:30900/api/v1/alerts | jq 'if (.data.alerts | length) > 0 then .data.alerts.[] else empty end' > $(ALERTS_FILE_PATH)
-
 .PHONY: extension-developer-e2e
 extension-developer-e2e: KIND_CLUSTER_NAME := operator-controller-ext-dev-e2e
 extension-developer-e2e: export INSTALL_DEFAULT_CATALOGS := false

config/overlays/prometheus/prometheus_rule.yaml

@@ -22,13 +22,13 @@ spec:
       annotations:
         description: "container {{ $labels.container }} of pod {{ $labels.pod }} experienced OOM event(s); count={{ $value }}"
     - alert: operator-controller-memory-growth
-      expr: deriv(sum(container_memory_working_set_bytes{pod=~"operator-controller.*",container="manager"})[5m:]) > 50_000
+      expr: deriv(sum(container_memory_working_set_bytes{pod=~"operator-controller.*",container="manager"})[5m:]) > 100_000
       for: 5m
       keep_firing_for: 1d
       annotations:
         description: "operator-controller pod memory usage growing at a high rate for 5 minutes: {{ $value | humanize }}B/sec"
     - alert: catalogd-memory-growth
-      expr: deriv(sum(container_memory_working_set_bytes{pod=~"catalogd.*",container="manager"})[5m:]) > 50_000
+      expr: deriv(sum(container_memory_working_set_bytes{pod=~"catalogd.*",container="manager"})[5m:]) > 100_000
       for: 5m
       keep_firing_for: 1d
       annotations:

go.mod

@@ -23,6 +23,7 @@ require (
 	github.com/operator-framework/helm-operator-plugins v0.8.0
 	github.com/operator-framework/operator-registry v1.56.0
 	github.com/prometheus/client_golang v1.23.0
+	github.com/prometheus/common v0.65.0
 	github.com/spf13/cobra v1.9.1
 	github.com/stretchr/testify v1.10.0
 	golang.org/x/exp v0.0.0-20250620022241-b7579e27df2b
@@ -177,7 +178,6 @@ require (
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/proglottis/gpgme v0.1.4 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/common v0.65.0 // indirect
 	github.com/prometheus/procfs v0.16.1 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/rubenv/sql-migrate v1.8.0 // indirect

go.sum

@@ -279,6 +279,8 @@ github.com/joelanford/ignore v0.1.1 h1:vKky5RDoPT+WbONrbQBgOn95VV/UPh4ejlyAbbzgn
 github.com/joelanford/ignore v0.1.1/go.mod h1:8eho/D8fwQ3rIXrLwE23AaeaGDNXqLE9QJ3zJ4LIPCw=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
+github.com/jpillora/backoff v1.0.0 h1:uvFg412JmmHBHw7iwprIxkPMI+sGQ4kzOWsMeHnm2EA=
+github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
@@ -352,6 +354,8 @@ github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 h1:n6/
 github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00/go.mod h1:Pm3mSP3c5uWn86xMLZ5Sa7JB9GsEZySvHYXCTK4E9q4=
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f h1:KUppIJq7/+SVif2QVs3tOP0zanoHgBEVAwHxUSIzRqU=
+github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f h1:y5//uYreIhSUg3J1GEMiLbxo1LJaP8RfCpH6pymGZus=
 github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
 github.com/nxadm/tail v1.4.11 h1:8feyoE3OzPrcshW5/MJ4sGESc5cqmGkGCWlco4l0bqY=

test/e2e/e2e_suite_test.go

@@ -15,6 +15,7 @@ import (
 
 	ocv1 "github.com/operator-framework/operator-controller/api/v1"
 	"github.com/operator-framework/operator-controller/internal/operator-controller/scheme"
+	utils "github.com/operator-framework/operator-controller/test/utils"
 )
 
 var (
@@ -23,9 +24,10 @@ var (
 )
 
 const (
-	testCatalogRefEnvVar = "CATALOG_IMG"
-	testCatalogName      = "test-catalog"
-	latestImageTag       = "latest"
+	testSummaryOutputEnvVar = "GITHUB_STEP_SUMMARY"
+	testCatalogRefEnvVar    = "CATALOG_IMG"
+	testCatalogName         = "test-catalog"
+	latestImageTag          = "latest"
 )
 
 func TestMain(m *testing.M) {
@@ -36,7 +38,10 @@ func TestMain(m *testing.M) {
 	c, err = client.New(cfg, client.Options{Scheme: scheme.Scheme})
 	utilruntime.Must(err)
 
-	os.Exit(m.Run())
+	res := m.Run()
+	err = utils.PrintSummary(testSummaryOutputEnvVar)
+	utilruntime.Must(err)
+	os.Exit(res)
 }
 
 // createTestCatalog will create a new catalog on the test cluster, provided

test/e2e/metrics_test.go

@@ -129,15 +129,15 @@ func (c *MetricsTestConfig) getServiceAccountToken(t *testing.T) string {
 func (c *MetricsTestConfig) createCurlMetricsPod(t *testing.T) {
 	t.Logf("Creating curl pod (%s/%s) to validate the metrics endpoint", c.namespace, c.curlPodName)
 	cmd := exec.Command(c.client, "run", c.curlPodName,
-		"--image=curlimages/curl",
+		"--image=curlimages/curl:8.15.0",
 		"--namespace", c.namespace,
 		"--restart=Never",
 		"--overrides", `{
 			"spec": {
 				"terminationGradePeriodSeconds": 0,
 				"containers": [{
 					"name": "curl",
-					"image": "curlimages/curl",
+					"image": "curlimages/curl:8.15.0",
 					"command": ["sh", "-c", "sleep 3600"],
 					"securityContext": {
 						"allowPrivilegeEscalation": false,

test/utils/summary.go

@@ -0,0 +1,194 @@
+package utils
+
+import (
+	"context"
+	"fmt"
+	"math"
+	"os"
+	"path/filepath"
+	"strings"
+	"text/template"
+	"time"
+
+	"github.com/prometheus/client_golang/api"
+	v1 "github.com/prometheus/client_golang/api/prometheus/v1"
+	"github.com/prometheus/common/model"
+)
+
+var (
+	summaryTemplate = "summary.md.tmpl"
+	alertsTemplate  = "alert.md.tmpl"
+	chartTemplate   = "mermaid_chart.md.tmpl"
+	defaultPromUrl  = "http://localhost:30900"
+)
+
+type summaryAlerts struct {
+	FiringAlerts  []summaryAlert
+	PendingAlerts []summaryAlert
+}
+
+type summaryAlert struct {
+	v1.Alert
+	Name        string
+	Description string
+}
+
+type xychart struct {
+	Title  string
+	YMax   float64
+	YMin   float64
+	YLabel string
+	Data   string
+}
+
+type githubSummary struct {
+	client api.Client
+	Pods   []string
+}
+
+func NewSummary(c api.Client, pods ...string) githubSummary {
+	return githubSummary{
+		client: c,
+		Pods:   pods,
+	}
+}
+
+// PerformanceQuery queries the prometheus server and generates a mermaid xychart with the data
+func (s githubSummary) PerformanceQuery(title, pod, query string, yLabel string, scaler float64) (string, error) {
+	v1api := v1.NewAPI(s.client)
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+
+	fullQuery := fmt.Sprintf(query, pod)
+	result, warnings, err := v1api.Query(ctx, fullQuery, time.Now())
+	if err != nil {
+		return "", err
+	} else if len(warnings) > 0 {
+		fmt.Printf("warnings returned from performance query; query=%s, warnings=%v", fullQuery, warnings)
+	} else if result.Type() != model.ValMatrix {
+		return "", fmt.Errorf("incompatible result type; need: %s, got: %s", model.ValMatrix, result.Type().String())
+	}
+
+	matrix, ok := result.(model.Matrix)
+	if !ok {
+		return "", fmt.Errorf("typecast for metrics samples failed; aborting")
+	} else if len(matrix) > 1 {
+		return "", fmt.Errorf("expected 1 set of results; got: %d", len(matrix))
+	}
+	chart := xychart{
+		Title:  title,
+		YLabel: yLabel,
+		YMax:   math.SmallestNonzeroFloat64,
+		YMin:   math.MaxFloat64,
+	}
+	formattedData := make([]string, 0)
+	// matrix does not allow [] access, so we just do one iteration for the single result
+	for _, metric := range matrix {
+		if len(metric.Values) < 1 {
+			return "", fmt.Errorf("expected at least one data point; got: %d", len(metric.Values))
+		}
+		for _, sample := range metric.Values {
+			floatSample := float64(sample.Value) * scaler
+			formattedData = append(formattedData, fmt.Sprintf("%f", floatSample))
+			if floatSample > chart.YMax {
+				chart.YMax = floatSample
+			}
+			if floatSample < chart.YMin {
+				chart.YMin = floatSample
+			}
+		}
+	}
+	// Add some padding
+	chart.YMax = (chart.YMax + (math.Abs(chart.YMax) * 0.05))
+	chart.YMin = (chart.YMin - (math.Abs(chart.YMin) * 0.05))
+	// Pretty print the values, ex: [1,2,3,4]
+	chart.Data = strings.ReplaceAll(fmt.Sprintf("%v", formattedData), " ", ",")
+
+	return executeTemplate(chartTemplate, chart)
+}
+
+// Alerts queries the prometheus server for alerts and generates markdown output for anything found.
+// If no alerts are found, the alerts section will contain only "None." in the final output.
+func (s githubSummary) Alerts() (string, error) {
+	v1api := v1.NewAPI(s.client)
+	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
+	defer cancel()
+	result, err := v1api.Alerts(ctx)
+	if err != nil {
+		fmt.Printf("Error querying Prometheus: %v\n", err)
+		os.Exit(1)
+	}
+
+	firingAlerts := make([]summaryAlert, 0)
+	pendingAlerts := make([]summaryAlert, 0)
+	if len(result.Alerts) > 0 {
+		for _, a := range result.Alerts {
+			aConv := summaryAlert{
+				Alert:       a,
+				Name:        string(a.Labels["alertname"]),
+				Description: string(a.Annotations["description"]),
+			}
+			switch a.State {
+			case v1.AlertStateFiring:
+				firingAlerts = append(firingAlerts, aConv)
+			case v1.AlertStatePending:
+				pendingAlerts = append(pendingAlerts, aConv)
+				// Ignore AlertStateInactive; the alerts endpoint doesn't return them
+			}
+		}
+	} else {
+		return "None.", nil
+	}
+
+	return executeTemplate(alertsTemplate, summaryAlerts{
+		FiringAlerts:  firingAlerts,
+		PendingAlerts: pendingAlerts,
+	})
+}
+
+func executeTemplate(templateFile string, obj any) (string, error) {
+	wd, err := os.Getwd()
+	if err != nil {
+		return "", fmt.Errorf("failed to get working directory: %w", err)
+	}
+	tmpl, err := template.New(templateFile).ParseGlob(filepath.Join(wd, "../utils/templates", templateFile))
+	if err != nil {
+		return "", err
+	}
+	buffer := new(strings.Builder)
+	err = tmpl.Execute(buffer, obj)
+	if err != nil {
+		return "", err
+	}
+	return buffer.String(), nil
+}
+
+// PrintSummary executes the main summary template, generating the full test report.
+// The markdown is template-driven; the summary methods are called from within the
+// template. This allows us to add or change queries (hopefully) without needing to
+// touch code. The summary will be output to a file supplied by the env target.
+func PrintSummary(envTarget string) error {
+	client, err := api.NewClient(api.Config{
+		Address: defaultPromUrl,
+	})
+	if err != nil {
+		fmt.Printf("Error creating prometheus client: %v\n", err)
+		os.Exit(1)
+	}
+
+	summary := NewSummary(client, "operator-controller", "catalogd")
+	summaryMarkdown, err := executeTemplate(summaryTemplate, summary)
+	if err != nil {
+		return err
+	}
+	if path := os.Getenv(envTarget); path != "" {
+		err = os.WriteFile(path, []byte(summaryMarkdown), 0o600)
+		if err != nil {
+			return err
+		}
+		fmt.Printf("Test summary output to %s successful\n", envTarget)
+	} else {
+		fmt.Printf("No summary output specified; skipping")
+	}
+	return nil
+}

test/utils/templates/alert.md.tmpl

@@ -0,0 +1,16 @@
+{{- /* -------------------- Alert Template --------------------- */ -}}
+{{define "alert"}}
+| {{ .Name }} | {{ .Description }} |
+| -------- | ------- |
+| ActiveAt  | {{ .ActiveAt }} |
+| State  | {{ .State }} |
+{{- end}}
+
+### Firing Alerts
+{{ range .FiringAlerts }}
+{{ template "alert" .}}
+{{ end }}
+### Pending Alerts
+{{ range .PendingAlerts }}
+{{ template "alert" .}}
+{{ end }}

test/utils/templates/mermaid_chart.md.tmpl

@@ -0,0 +1,17 @@
+<details>
+
+```mermaid
+---
+config:
+  xyChart:
+    showDataLabel: true
+    xAxis:
+      showLabel: false
+---
+xychart-beta
+title "{{ .Title }}"
+y-axis "{{ .YLabel }}"  {{printf "%f" .YMin}} --> {{printf "%f" .YMax}}
+x-axis "time (start of test to end)"
+line {{.Data}}
+```
+</details>

test/utils/templates/summary.md.tmpl

@@ -0,0 +1,22 @@
+
+{{- /* ------------ Performance Statistics Template ------------ */ -}}
+{{define "performanceStatistics" -}}
+{{ range $index, $pod := .Pods }}
+### {{$pod}}
+#### Memory Usage
+{{$.PerformanceQuery "Memory Usage" $pod `container_memory_working_set_bytes{pod=~"%s.*",container="manager"}[5m]` "MB" .000001}}
+
+#### Memory Growth Rate
+{{$.PerformanceQuery "Memory Growth Rate" $pod `deriv(sum(container_memory_working_set_bytes{pod=~"%s.*",container="manager"})[5m:])[5m:]` "KB/s" .001}}
+
+#### CPU Usage
+{{$.PerformanceQuery "CPU Usage" $pod `rate(container_cpu_usage_seconds_total{pod=~"%s.*",container="manager"}[5m])[5m:]` "mCPU" 1000}}
+{{end}}
+{{- end}}
+
+{{- /* ----------------- E2E Summary Markdown ------------------ */ -}}
+# E2E Summary
+## Alerts
+{{.Alerts}}
+## Performance
+{{ template "performanceStatistics" . -}}