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https://gitea.com/Lydanne/buildx.git
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7094eb86c9
Introduce a meter provider to the buildx cli that will send metrics to the otel-collector included in docker desktop if enabled. This will send usage metrics to the desktop application but also send metrics to a user-provided otlp receiver endpoint through the standard environment variables. This introduces a single metric which is the cli count for build and bake along with the command name and a few additional attributes. Signed-off-by: Jonathan A. Sternberg <jonathan.sternberg@docker.com>
50 lines
1.5 KiB
Go
50 lines
1.5 KiB
Go
package metrics
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import (
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"context"
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"os"
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"github.com/pkg/errors"
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"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc"
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"go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp"
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sdkmetric "go.opentelemetry.io/otel/sdk/metric"
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)
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// detectOtlpExporter configures a metrics exporter based on environment variables.
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// This is similar to the version of this in buildkit, but we need direct access
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// to the exporter and the prometheus exporter doesn't work at all in a CLI context.
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//
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// There's some duplication here which I hope to remove when the detect package
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// is refactored or extracted from buildkit so it can be utilized here.
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//
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// This version of the exporter is public facing in contrast to the
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// docker otel collector.
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func detectOtlpExporter(ctx context.Context) (sdkmetric.Exporter, error) {
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set := os.Getenv("OTEL_METRICS_EXPORTER") == "otlp" || os.Getenv("OTEL_EXPORTER_OTLP_ENDPOINT") != "" || os.Getenv("OTEL_EXPORTER_OTLP_METRICS_ENDPOINT") != ""
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if !set {
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return nil, nil
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}
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proto := os.Getenv("OTEL_EXPORTER_OTLP_METRICS_PROTOCOL")
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if proto == "" {
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proto = os.Getenv("OTEL_EXPORTER_OTLP_PROTOCOL")
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}
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if proto == "" {
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proto = "grpc"
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}
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switch proto {
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case "grpc":
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return otlpmetricgrpc.New(ctx,
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otlpmetricgrpc.WithTemporalitySelector(deltaTemporality),
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)
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case "http/protobuf":
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return otlpmetrichttp.New(ctx,
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otlpmetrichttp.WithTemporalitySelector(deltaTemporality),
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)
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// case "http/json": // unsupported by library
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default:
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return nil, errors.Errorf("unsupported otlp protocol %v", proto)
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}
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}
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