From 143d9f71ccf18d0640f4eca044284130b4a0bfa7 Mon Sep 17 00:00:00 2001 From: Brian Goff Date: Wed, 31 Oct 2018 14:26:32 -0700 Subject: [PATCH] Add ocagent exporter ocagent allows users to send traces out of VK to a "standard" external forwarder (standard as in this is a format/protocol defined in the opencensus project). This allows uers to implement metrics for whatever backend they want without having to add it into VK directly. --- Gopkg.lock | 24 +- cmd/census_ocagent.go | 37 + .../exporter/ocagent/LICENSE | 201 ++ .../exporter/ocagent/common.go | 38 + .../exporter/ocagent/connection.go | 94 + .../exporter/ocagent/nodeinfo.go | 41 + .../exporter/ocagent/ocagent.go | 320 ++++ .../exporter/ocagent/options.go | 78 + .../exporter/ocagent/transform_spans.go | 162 ++ .../exporter/ocagent/version.go | 17 + .../opencensus-proto/AUTHORS | 1 + .../opencensus-proto/LICENSE | 202 ++ .../gen-go/agent/common/v1/common.pb.go | 347 ++++ .../gen-go/agent/trace/v1/trace_service.pb.go | 413 +++++ .../gen-go/trace/v1/trace.pb.go | 1629 +++++++++++++++++ .../gen-go/trace/v1/trace_config.pb.go | 358 ++++ .../protobuf/ptypes/wrappers/wrappers.pb.go | 443 +++++ 17 files changed, 4404 insertions(+), 1 deletion(-) create mode 100644 cmd/census_ocagent.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/LICENSE create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/common.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/connection.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/nodeinfo.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/ocagent.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/options.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/transform_spans.go create mode 100644 vendor/contrib.go.opencensus.io/exporter/ocagent/version.go create mode 100644 vendor/github.com/census-instrumentation/opencensus-proto/AUTHORS create mode 100644 vendor/github.com/census-instrumentation/opencensus-proto/LICENSE create mode 100644 vendor/github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1/common.pb.go create mode 100644 vendor/github.com/census-instrumentation/opencensus-proto/gen-go/agent/trace/v1/trace_service.pb.go create mode 100644 vendor/github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1/trace.pb.go create mode 100644 vendor/github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1/trace_config.pb.go create mode 100644 vendor/github.com/golang/protobuf/ptypes/wrappers/wrappers.pb.go diff --git a/Gopkg.lock b/Gopkg.lock index d89a18238..43f73752c 100644 --- a/Gopkg.lock +++ b/Gopkg.lock @@ -1,6 +1,14 @@ # This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'. +[[projects]] + digest = "1:4e57b6877e2f13229a0a85def585352617e2a613863f41cb9c06543bc9b528cc" + name = "contrib.go.opencensus.io/exporter/ocagent" + packages = ["."] + pruneopts = "NUT" + revision = "7c99379c268784cc5f9eef1e54999232c084db47" + version = "v0.3.0" + [[projects]] branch = "master" digest = "1:e95de5c830369d6592224de57a31cd87a2ba1cec2abaf050d06a63ee8f7babd8" @@ -170,6 +178,18 @@ revision = "2ea60e5f094469f9e65adb9cd103795b73ae743e" version = "v2.0.0" +[[projects]] + digest = "1:94a0e9062558cb8b417326a1939e9b9e8a66409615969d8b89d99f84a7ee3c1c" + name = "github.com/census-instrumentation/opencensus-proto" + packages = [ + "gen-go/agent/common/v1", + "gen-go/agent/trace/v1", + "gen-go/trace/v1", + ] + pruneopts = "NUT" + revision = "24333298e36590ea0716598caacc8959fc393c48" + version = "v0.0.2" + [[projects]] branch = "master" digest = "1:dadd2829b5206df1b19eca11995ff94f8a0e1164ed0c54ff7335000aa08840cb" @@ -478,7 +498,7 @@ revision = "23def4e6c14b4da8ac2ed8007337bc5eb5007998" [[projects]] - digest = "1:03e14cff610a8a58b774e36bd337fa979482be86aab01be81fb8bbd6d0f07fc8" + digest = "1:782d86fa8e552302d3f9c3f2a5ef6482d1f28ac52a69b5e1e14d9b71c8c9dda3" name = "github.com/golang/protobuf" packages = [ "proto", @@ -486,6 +506,7 @@ "ptypes/any", "ptypes/duration", "ptypes/timestamp", + "ptypes/wrappers", ] pruneopts = "NUT" revision = "b4deda0973fb4c70b50d226b1af49f3da59f5265" @@ -1521,6 +1542,7 @@ analyzer-name = "dep" analyzer-version = 1 input-imports = [ + "contrib.go.opencensus.io/exporter/ocagent", "github.com/Azure/azure-sdk-for-go/profiles/preview/preview/servicefabricmesh/mgmt/servicefabricmesh", "github.com/Azure/azure-sdk-for-go/services/batch/2017-09-01.6.0/batch", "github.com/Azure/azure-sdk-for-go/services/network/mgmt/2018-08-01/network", diff --git a/cmd/census_ocagent.go b/cmd/census_ocagent.go new file mode 100644 index 000000000..6ad155890 --- /dev/null +++ b/cmd/census_ocagent.go @@ -0,0 +1,37 @@ +// +build !no_ocagent_exporter + +package cmd + +import ( + "os" + + "contrib.go.opencensus.io/exporter/ocagent" + "github.com/cpuguy83/strongerrors" + "github.com/pkg/errors" + "go.opencensus.io/trace" +) + +func init() { + RegisterTracingExporter("ocagent", NewOCAgentExporter) +} + +// NewOCAgentExporter creates a new opencensus tracing exporter using the opencensus agent forwarder. +func NewOCAgentExporter(opts TracingExporterOptions) (trace.Exporter, error) { + agentOpts := append([]ocagent.ExporterOption{}, ocagent.WithServiceName(opts.ServiceName)) + + if endpoint := os.Getenv("OCAGENT_ENDPOINT"); endpoint != "" { + agentOpts = append(agentOpts, ocagent.WithAddress(endpoint)) + } else { + return nil, strongerrors.InvalidArgument(errors.New("must set endpoint address in OCAGENT_ENDPOINT")) + } + + switch os.Getenv("OCAGENT_INSECURE") { + case "0", "no", "n", "off", "": + case "1", "yes", "y", "on": + agentOpts = append(agentOpts, ocagent.WithInsecure()) + default: + return nil, strongerrors.InvalidArgument(errors.New("invalid value for OCAGENT_INSECURE")) + } + + return ocagent.NewExporter(agentOpts...) +} diff --git a/vendor/contrib.go.opencensus.io/exporter/ocagent/LICENSE b/vendor/contrib.go.opencensus.io/exporter/ocagent/LICENSE new file mode 100644 index 000000000..261eeb9e9 --- /dev/null +++ b/vendor/contrib.go.opencensus.io/exporter/ocagent/LICENSE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + 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. diff --git a/vendor/contrib.go.opencensus.io/exporter/ocagent/common.go b/vendor/contrib.go.opencensus.io/exporter/ocagent/common.go new file mode 100644 index 000000000..297e44b6e --- /dev/null +++ b/vendor/contrib.go.opencensus.io/exporter/ocagent/common.go @@ -0,0 +1,38 @@ +// Copyright 2018, OpenCensus 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 ocagent + +import ( + "math/rand" + "time" +) + +var randSrc = rand.New(rand.NewSource(time.Now().UnixNano())) + +// retries function fn upto n times, if fn returns an error lest it returns nil early. +// It applies exponential backoff in units of (1<