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feat: expose template insights as Prometheus metrics #10255

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24e4ff3
WIP
mtojek Oct 13, 2023
a6c9c1a
Use db
mtojek Oct 13, 2023
86f45a0
debug
mtojek Oct 13, 2023
bfcd8f4
Merge branch 'main' into 9983-insights-metrics
mtojek Oct 17, 2023
a3c29a7
DB calls
mtojek Oct 17, 2023
24ae332
WIP
mtojek Oct 17, 2023
0cb1206
WIP dbfake
mtojek Oct 18, 2023
3c31168
Merge branch 'main' into 9983-insights-metrics
mtojek Oct 18, 2023
a764cef
Collect metrics data
mtojek Oct 18, 2023
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WIP
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@mtojek
mtojek committed Oct 17, 2023
commit 24ae33227e513e858ee7cedf26fad9525bc9cd57
55 changes: 51 additions & 4 deletions coderd/prometheusmetrics/insights/metricscollector.go
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ import (
"context"
"time"

"github.com/google/uuid"
"github.com/prometheus/client_golang/prometheus"
"golang.org/x/sync/errgroup"
"golang.org/x/xerrors"
Expand Down Expand Up @@ -58,7 +59,7 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {

// TODO collect iteration time

var templateInsights database.GetTemplateInsightsRow
var userActivity []database.GetUserActivityInsightsRow
var appInsights []database.GetTemplateAppInsightsRow
var parameterInsights []database.GetTemplateParameterInsightsRow

Expand All @@ -68,7 +69,7 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {

eg.Go(func() error {
var err error
templateInsights, err = mc.database.GetTemplateInsights(egCtx, database.GetTemplateInsightsParams{
userActivity, err = mc.database.GetUserActivityInsights(egCtx, database.GetUserActivityInsightsParams{
StartTime: startTime,
EndTime: endTime,
})
Expand Down Expand Up @@ -105,9 +106,17 @@ func (mc *MetricsCollector) Run(ctx context.Context) (func(), error) {
return
}

// Phase 2: Collect resource IDs (templates, applications, parameters), and fetch relevant details
// Phase 2: Collect template IDs, and fetch relevant details
templateIDs := uniqueTemplateIDs(userActivity, appInsights, parameterInsights)
templates, err := mc.database.GetTemplatesWithFilter(ctx, database.GetTemplatesWithFilterParams{
IDs: templateIDs,
})
if err != nil {
mc.logger.Error(ctx, "unable to fetch template details from database", slog.Error(err))
return
}

// TODO
templateNames := onlyTemplateNames(templates)
}

go func() {
Expand Down Expand Up @@ -139,3 +148,41 @@ func (mc *MetricsCollector) Collect(metricsCh chan<- prometheus.Metric) {

// TODO
}

// Helper functions below.

func uniqueTemplateIDs(userActivity []database.GetUserActivityInsightsRow, appInsights []database.GetTemplateAppInsightsRow, parameterInsights []database.GetTemplateParameterInsightsRow) []uuid.UUID {
tids := map[uuid.UUID]bool{}
for _, t := range userActivity {
for _, tid := range t.TemplateIDs {
tids[tid] = true
}
}

for _, a := range appInsights {
for _, tid := range a.TemplateIDs {
tids[tid] = true
}
}

for _, p := range parameterInsights {
for _, tid := range p.TemplateIDs {
tids[tid] = true
}
}

uniqueUUIDs := make([]uuid.UUID, len(tids))
var i int
for t := range tids {
uniqueUUIDs[i] = t
}
return uniqueUUIDs
}

func onlyTemplateNames(templates []database.Template) map[uuid.UUID]string {
m := map[uuid.UUID]string{}
for _, t := range templates {
m[t.ID] = t.Name
}
return m
}