Move cli back into cmd/ after filter branch

cmd/virtual-kubelet/commands/root/tracing_register_jaeger.go

@@ -0,0 +1,51 @@
+// Copyright © 2017 The virtual-kubelet 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.
+
+// +build !no_jaeger_exporter
+
+package root
+
+import (
+	"errors"
+	"os"
+
+	"go.opencensus.io/exporter/jaeger"
+	"go.opencensus.io/trace"
+)
+
+func init() {
+	RegisterTracingExporter("jaeger", NewJaegerExporter)
+}
+
+// NewJaegerExporter creates a new opencensus tracing exporter.
+func NewJaegerExporter(opts TracingExporterOptions) (trace.Exporter, error) {
+	jOpts := jaeger.Options{
+		Endpoint:      os.Getenv("JAEGER_ENDPOINT"),
+		AgentEndpoint: os.Getenv("JAEGER_AGENT_ENDPOINT"),
+		Username:      os.Getenv("JAEGER_USER"),
+		Password:      os.Getenv("JAEGER_PASSWORD"),
+		Process: jaeger.Process{
+			ServiceName: opts.ServiceName,
+		},
+	}
+
+	if jOpts.Endpoint == "" && jOpts.AgentEndpoint == "" {
+		return nil, errors.New("Must specify either JAEGER_ENDPOINT or JAEGER_AGENT_ENDPOINT")
+	}
+
+	for k, v := range opts.Tags {
+		jOpts.Process.Tags = append(jOpts.Process.Tags, jaeger.StringTag(k, v))
+	}
+	return jaeger.NewExporter(jOpts)
+}