mirror of https://github.com/coder/coder.git
feat: expose parameter insights as Prometheus metrics (#10574)
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parent
e23873ff8f
commit
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@ -7,18 +7,21 @@ import (
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"github.com/google/uuid"
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"github.com/prometheus/client_golang/prometheus"
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"golang.org/x/exp/slices"
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"golang.org/x/sync/errgroup"
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"golang.org/x/xerrors"
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"cdr.dev/slog"
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"github.com/coder/coder/v2/coderd/database"
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"github.com/coder/coder/v2/coderd/util/slice"
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"github.com/coder/coder/v2/codersdk"
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)
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var (
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templatesActiveUsersDesc = prometheus.NewDesc("coderd_insights_templates_active_users", "The number of active users of the template.", []string{"template_name"}, nil)
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applicationsUsageSecondsDesc = prometheus.NewDesc("coderd_insights_applications_usage_seconds", "The application usage per template.", []string{"template_name", "application_name", "slug"}, nil)
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parametersDesc = prometheus.NewDesc("coderd_insights_parameters", "The parameter usage per template.", []string{"template_name", "parameter_name", "parameter_type", "parameter_value"}, nil)
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)
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type MetricsCollector struct {
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@ -33,10 +36,20 @@ type MetricsCollector struct {
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type insightsData struct {
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templates []database.GetTemplateInsightsByTemplateRow
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apps []database.GetTemplateAppInsightsByTemplateRow
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params []parameterRow
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templateNames map[uuid.UUID]string
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}
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type parameterRow struct {
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templateID uuid.UUID
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name string
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aType string
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value string
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count int64
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}
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var _ prometheus.Collector = new(MetricsCollector)
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func NewMetricsCollector(db database.Store, logger slog.Logger, timeWindow time.Duration, tickInterval time.Duration) (*MetricsCollector, error) {
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@ -75,10 +88,11 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {
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// Phase 1: Fetch insights from database
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// FIXME errorGroup will be used to fetch insights for apps and parameters
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eg, egCtx := errgroup.WithContext(ctx)
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eg.SetLimit(2)
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eg.SetLimit(3)
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var templateInsights []database.GetTemplateInsightsByTemplateRow
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var appInsights []database.GetTemplateAppInsightsByTemplateRow
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var paramInsights []parameterRow
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eg.Go(func() error {
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var err error
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@ -102,13 +116,25 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {
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}
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return err
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})
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eg.Go(func() error {
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var err error
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rows, err := mc.database.GetTemplateParameterInsights(egCtx, database.GetTemplateParameterInsightsParams{
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StartTime: startTime,
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EndTime: endTime,
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})
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if err != nil {
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mc.logger.Error(ctx, "unable to fetch parameter insights from database", slog.Error(err))
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}
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paramInsights = convertParameterInsights(rows)
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return err
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})
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err := eg.Wait()
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if err != nil {
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return
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}
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// Phase 2: Collect template IDs, and fetch relevant details
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templateIDs := uniqueTemplateIDs(templateInsights, appInsights)
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templateIDs := uniqueTemplateIDs(templateInsights, appInsights, paramInsights)
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templateNames := make(map[uuid.UUID]string, len(templateIDs))
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if len(templateIDs) > 0 {
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@ -126,6 +152,7 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {
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mc.data.Store(&insightsData{
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templates: templateInsights,
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apps: appInsights,
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params: paramInsights,
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templateNames: templateNames,
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})
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@ -153,6 +180,7 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {
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func (*MetricsCollector) Describe(descCh chan<- *prometheus.Desc) {
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descCh <- templatesActiveUsersDesc
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descCh <- applicationsUsageSecondsDesc
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descCh <- parametersDesc
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}
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func (mc *MetricsCollector) Collect(metricsCh chan<- prometheus.Metric) {
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@ -200,11 +228,16 @@ func (mc *MetricsCollector) Collect(metricsCh chan<- prometheus.Metric) {
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for _, templateRow := range data.templates {
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metricsCh <- prometheus.MustNewConstMetric(templatesActiveUsersDesc, prometheus.GaugeValue, float64(templateRow.ActiveUsers), data.templateNames[templateRow.TemplateID])
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}
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// Parameters
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for _, parameterRow := range data.params {
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metricsCh <- prometheus.MustNewConstMetric(parametersDesc, prometheus.GaugeValue, float64(parameterRow.count), data.templateNames[parameterRow.templateID], parameterRow.name, parameterRow.aType, parameterRow.value)
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}
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}
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// Helper functions below.
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func uniqueTemplateIDs(templateInsights []database.GetTemplateInsightsByTemplateRow, appInsights []database.GetTemplateAppInsightsByTemplateRow) []uuid.UUID {
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func uniqueTemplateIDs(templateInsights []database.GetTemplateInsightsByTemplateRow, appInsights []database.GetTemplateAppInsightsByTemplateRow, paramInsights []parameterRow) []uuid.UUID {
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tids := map[uuid.UUID]bool{}
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for _, t := range templateInsights {
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tids[t.TemplateID] = true
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@ -212,6 +245,9 @@ func uniqueTemplateIDs(templateInsights []database.GetTemplateInsightsByTemplate
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for _, t := range appInsights {
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tids[t.TemplateID] = true
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}
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for _, t := range paramInsights {
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tids[t.templateID] = true
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}
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uniqueUUIDs := make([]uuid.UUID, len(tids))
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var i int
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@ -229,3 +265,54 @@ func onlyTemplateNames(templates []database.Template) map[uuid.UUID]string {
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}
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return m
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}
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func convertParameterInsights(rows []database.GetTemplateParameterInsightsRow) []parameterRow {
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type uniqueKey struct {
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templateID uuid.UUID
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parameterName string
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parameterType string
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parameterValue string
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}
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m := map[uniqueKey]int64{}
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for _, r := range rows {
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for _, t := range r.TemplateIDs {
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key := uniqueKey{
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templateID: t,
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parameterName: r.Name,
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parameterType: r.Type,
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parameterValue: r.Value,
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}
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if _, ok := m[key]; !ok {
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m[key] = 0
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}
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m[key] = m[key] + r.Count
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}
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}
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converted := make([]parameterRow, len(m))
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var i int
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for k, c := range m {
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converted[i] = parameterRow{
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templateID: k.templateID,
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name: k.parameterName,
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aType: k.parameterType,
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value: k.parameterValue,
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count: c,
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}
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i++
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}
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slices.SortFunc(converted, func(a, b parameterRow) int {
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if a.templateID != b.templateID {
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return slice.Ascending(a.templateID.String(), b.templateID.String())
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}
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if a.name != b.name {
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return slice.Ascending(a.name, b.name)
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}
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return slice.Ascending(a.value, b.value)
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})
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return converted
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}
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@ -57,7 +57,7 @@ func TestCollectInsights(t *testing.T) {
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authToken := uuid.NewString()
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version := coderdtest.CreateTemplateVersion(t, client, user.OrganizationID, &echo.Responses{
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Parse: echo.ParseComplete,
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ProvisionPlan: echo.PlanComplete,
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ProvisionPlan: provisionPlanWithParameters(),
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ProvisionApply: provisionApplyWithAgentAndApp(authToken),
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})
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template := coderdtest.CreateTemplate(t, client, user.OrganizationID, version.ID, func(ctr *codersdk.CreateTemplateRequest) {
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@ -66,7 +66,13 @@ func TestCollectInsights(t *testing.T) {
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require.Empty(t, template.BuildTimeStats[codersdk.WorkspaceTransitionStart])
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coderdtest.AwaitTemplateVersionJobCompleted(t, client, version.ID)
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workspace := coderdtest.CreateWorkspace(t, client, user.OrganizationID, template.ID)
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workspace := coderdtest.CreateWorkspace(t, client, user.OrganizationID, template.ID, func(cwr *codersdk.CreateWorkspaceRequest) {
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cwr.RichParameterValues = []codersdk.WorkspaceBuildParameter{
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{Name: "first_parameter", Value: "Foobar"},
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{Name: "second_parameter", Value: "true"},
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{Name: "third_parameter", Value: "789"},
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}
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})
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coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspace.LatestBuild.ID)
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// Start an agent so that we can generate stats.
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@ -142,7 +148,7 @@ func TestCollectInsights(t *testing.T) {
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// Then
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for _, metric := range metrics {
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switch metric.GetName() {
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case "coderd_insights_applications_usage_seconds", "coderd_insights_templates_active_users":
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case "coderd_insights_applications_usage_seconds", "coderd_insights_templates_active_users", "coderd_insights_parameters":
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for _, m := range metric.Metric {
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key := metric.GetName()
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if len(m.Label) > 0 {
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@ -167,6 +173,22 @@ func metricLabelAsString(m *io_prometheus_client.Metric) string {
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return strings.Join(labels, ",")
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}
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func provisionPlanWithParameters() []*proto.Response {
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return []*proto.Response{
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{
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Type: &proto.Response_Plan{
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Plan: &proto.PlanComplete{
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Parameters: []*proto.RichParameter{
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{Name: "first_parameter", Type: "string", Mutable: true},
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{Name: "second_parameter", Type: "bool", Mutable: true},
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{Name: "third_parameter", Type: "number", Mutable: true},
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},
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},
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},
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},
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}
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}
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func provisionApplyWithAgentAndApp(authToken string) []*proto.Response {
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return []*proto.Response{{
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Type: &proto.Response_Apply{
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@ -4,5 +4,8 @@
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"coderd_insights_applications_usage_seconds[application_name=Web Terminal,slug=,template_name=golden-template]": 0,
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"coderd_insights_applications_usage_seconds[application_name=SSH,slug=,template_name=golden-template]": 60,
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"coderd_insights_applications_usage_seconds[application_name=Golden Slug,slug=golden-slug,template_name=golden-template]": 180,
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"coderd_insights_parameters[parameter_name=first_parameter,parameter_type=string,parameter_value=Foobar,template_name=golden-template]": 1,
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"coderd_insights_parameters[parameter_name=second_parameter,parameter_type=bool,parameter_value=true,template_name=golden-template]": 1,
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"coderd_insights_parameters[parameter_name=third_parameter,parameter_type=number,parameter_value=789,template_name=golden-template]": 1,
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"coderd_insights_templates_active_users[template_name=golden-template]": 1
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}
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