mirror of https://github.com/knative/caching.git
54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
/*
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Copyright 2019 The Knative Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package metrics
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import (
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"cloud.google.com/go/compute/metadata"
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"knative.dev/pkg/metrics/metricskey"
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)
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type gcpMetadata struct {
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project string
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location string
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cluster string
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}
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func retrieveGCPMetadata() *gcpMetadata {
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gm := gcpMetadata{
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project: metricskey.ValueUnknown,
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location: metricskey.ValueUnknown,
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cluster: metricskey.ValueUnknown,
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}
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if metadata.OnGCE() {
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project, err := metadata.NumericProjectID()
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if err == nil && project != "" {
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gm.project = project
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}
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location, err := metadata.InstanceAttributeValue("cluster-location")
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if err == nil && location != "" {
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gm.location = location
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}
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cluster, err := metadata.InstanceAttributeValue("cluster-name")
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if err == nil && cluster != "" {
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gm.cluster = cluster
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}
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}
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return &gm
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}
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