/
cloud-function.go
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/
cloud-function.go
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// Copyright The OpenTelemetry Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gcp // import "go.opentelemetry.io/contrib/detectors/gcp"
import (
"context"
"os"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/resource"
semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
)
const (
gcpFunctionNameKey = "K_SERVICE"
)
// NewCloudFunction will return a GCP Cloud Function resource detector.
// Deprecated: Use gcp.NewDetector() instead, which sets the same resource attributes.
func NewCloudFunction() resource.Detector {
return &cloudFunction{
cloudRun: NewCloudRun(),
}
}
// cloudFunction collects resource information of GCP Cloud Function.
type cloudFunction struct {
cloudRun *CloudRun
}
// Detect detects associated resources when running in GCP Cloud Function.
func (f *cloudFunction) Detect(ctx context.Context) (*resource.Resource, error) {
functionName, ok := f.googleCloudFunctionName()
if !ok {
return nil, nil
}
projectID, err := f.cloudRun.mc.ProjectID()
if err != nil {
return nil, err
}
region, err := f.cloudRun.cloudRegion(ctx)
if err != nil {
return nil, err
}
attributes := []attribute.KeyValue{
semconv.CloudProviderGCP,
semconv.CloudPlatformGCPCloudFunctions,
semconv.FaaSNameKey.String(functionName),
semconv.CloudAccountIDKey.String(projectID),
semconv.CloudRegionKey.String(region),
}
return resource.NewWithAttributes(semconv.SchemaURL, attributes...), nil
}
func (f *cloudFunction) googleCloudFunctionName() (string, bool) {
return os.LookupEnv(gcpFunctionNameKey)
}