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lightstep.go
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lightstep.go
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// Copyright Istio 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 telemetry
import (
"fmt"
"istio.io/api/mesh/v1alpha1"
telemetryapi "istio.io/api/telemetry/v1alpha1"
"istio.io/istio/pkg/config"
"istio.io/istio/pkg/config/analysis"
"istio.io/istio/pkg/config/analysis/msg"
"istio.io/istio/pkg/config/resource"
"istio.io/istio/pkg/config/schema/gvk"
"istio.io/istio/pkg/util/sets"
)
type LightstepAnalyzer struct{}
var _ analysis.Analyzer = &LightstepAnalyzer{}
// Metadata implements Analyzer
func (a *LightstepAnalyzer) Metadata() analysis.Metadata {
return analysis.Metadata{
Name: "telemetry.LightstepAnalyzer",
Description: "Validates that lightstep provider is still used",
Inputs: []config.GroupVersionKind{
gvk.Telemetry,
gvk.MeshConfig,
},
}
}
// Analyze implements Analyzer
func (a *LightstepAnalyzer) Analyze(c analysis.Context) {
meshConfig := fetchMeshConfig(c)
providerNames := sets.New[string]()
for _, prov := range meshConfig.ExtensionProviders {
switch prov.Provider.(type) {
case *v1alpha1.MeshConfig_ExtensionProvider_Lightstep:
providerNames.Insert(prov.Name)
}
}
if len(providerNames) == 0 {
return
}
c.ForEach(gvk.Telemetry, func(r *resource.Instance) bool {
telemetry := r.Message.(*telemetryapi.Telemetry)
for _, tracing := range telemetry.Tracing {
for _, p := range tracing.Providers {
if providerNames.Contains(p.Name) {
c.Report(gvk.Telemetry,
msg.NewDeprecated(r, fmt.Sprintf("The Lightstep provider %s is deprecated, please migrate to OpenTelemetry provider.", p.Name)))
}
}
}
return true
})
}