| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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 discovery |
| |
| import ( |
| "context" |
| "fmt" |
| "sort" |
| "strings" |
| |
| "github.com/apache/camel-k/pkg/client" |
| "github.com/apache/camel-k/pkg/trait" |
| "github.com/apache/camel-k/pkg/util/log" |
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" |
| ) |
| |
| type JaegerTracingLocator struct { |
| allowHeadless bool |
| } |
| |
| const ( |
| jaegerPortName = "http-c-binary-trft" |
| ) |
| |
| func (loc *JaegerTracingLocator) FindEndpoint(ctx context.Context, c client.Client, l log.Logger, e *trait.Environment) (string, error) { |
| opts := metav1.ListOptions{ |
| LabelSelector: "app.kubernetes.io/part-of=jaeger,app.kubernetes.io/component=service-collector", |
| } |
| lst, err := c.CoreV1().Services(e.Integration.Namespace).List(ctx, opts) |
| if err != nil { |
| return "", err |
| } |
| var candidates []string |
| for _, svc := range lst.Items { |
| if !loc.allowHeadless && strings.HasSuffix(svc.Name, "-headless") { |
| continue |
| } |
| |
| for _, port := range svc.Spec.Ports { |
| if port.Name == jaegerPortName && port.Port > 0 { |
| candidates = append(candidates, fmt.Sprintf("http://%s.%s.svc.cluster.local:%d/api/traces", svc.Name, svc.Namespace, port.Port)) |
| } |
| } |
| } |
| sort.Strings(candidates) |
| if len(candidates) > 0 { |
| for _, endpoint := range candidates { |
| l.Infof("Detected Jaeger endpoint at: %s", endpoint) |
| } |
| return candidates[0], nil |
| } |
| return "", nil |
| } |
| |
| // registering the locator |
| func init() { |
| TracingLocators = append(TracingLocators, &JaegerTracingLocator{}, &JaegerTracingLocator{allowHeadless: true}) |
| } |