diff --git a/README.md b/README.md index be43f70..6b33516 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,33 @@ # Hipster Shop: Cloud-Native Microservices Demo Application +This repo is a fork of http://go/microservices-demo with modifications to suite the Tetrate Service Bus. + +Changes includes : +- using `Zipkin` traces instead of `Jaeger`/`Stackdriver` +- adding HTTP and GRPC metrics where needed + +## Changelog + +- 20200129 + - All Go microservices are updated to use Zipkin and provide a `/metrics` endpoint for metrology + - Loadgenerator can connect to an HTTPS endpoint + +## building images +You can build the images using the scripts located in the `hack` folder: + +``` +# build only one image +TAG=v1.2.3 REPO_PREFIX=my.docker.hub ./hack/make-docker-images-nopush.sh emailservice + +# build all images +TAG=v1.2.3 REPO_PREFIX=my.docker.hub ./hack/make-docker-images-nopush.sh + +# build all and push to Docker Registry +TAG=v1.2.3 REPO_PREFIX=my.docker.hub ./hack/make-docker-images.sh +``` + +## Original Project Description + This project contains a 10-tier microservices application. The application is a web-based e-commerce app called **“Hipster Shop”** where users can browse items, add them to the cart, and purchase them. diff --git a/hack/make-docker-images-nopush.sh b/hack/make-docker-images-nopush.sh new file mode 100755 index 0000000..a8ebdac --- /dev/null +++ b/hack/make-docker-images-nopush.sh @@ -0,0 +1,41 @@ +#!/usr/bin/env bash + +# Copyright 2019 Google LLC +# +# 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. + +# Builds and pushes docker image for each demo microservice. + +set -euo pipefail +SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )" + +log() { echo "$1" >&2; } + +TAG="${TAG:?TAG env variable must be specified}" +REPO_PREFIX="${REPO_PREFIX:?REPO_PREFIX env variable must be specified}" +APP=${1:-""} + +while IFS= read -d $'\0' -r dir; do + svcname="$(basename "${dir}")" + if [ "$svcname" == "$APP" ] || [ -z "$APP" ]; then + # build image + image="${REPO_PREFIX}/$svcname:$TAG" + ( + cd "${dir}" + log "Building: ${image}" + docker build -t "${image}" . + ) + fi +done < <(find "${SCRIPTDIR}/../src" -mindepth 1 -maxdepth 1 -type d -print0) + +log "Successfully built and pushed all images." diff --git a/src/adservice/build.gradle b/src/adservice/build.gradle index 2341951..63ca164 100644 --- a/src/adservice/build.gradle +++ b/src/adservice/build.gradle @@ -49,6 +49,7 @@ dependencies { "io.opencensus:opencensus-api:${opencensusVersion}", "io.opencensus:opencensus-contrib-grpc-util:${opencensusVersion}", "io.opencensus:opencensus-exporter-trace-jaeger:${opencensusVersion}", + "io.opencensus:opencensus-exporter-trace-zipkin:${opencensusVersion}", "io.opencensus:opencensus-exporter-stats-stackdriver:${opencensusVersion}", "io.opencensus:opencensus-exporter-trace-stackdriver:${opencensusVersion}", "io.opencensus:opencensus-exporter-trace-logging:${opencensusVersion}", diff --git a/src/adservice/src/main/java/hipstershop/AdService.java b/src/adservice/src/main/java/hipstershop/AdService.java index 4817e1b..8c00999 100644 --- a/src/adservice/src/main/java/hipstershop/AdService.java +++ b/src/adservice/src/main/java/hipstershop/AdService.java @@ -33,6 +33,7 @@ import io.opencensus.contrib.grpc.metrics.RpcViews; import io.opencensus.exporter.stats.stackdriver.StackdriverStatsConfiguration; import io.opencensus.exporter.stats.stackdriver.StackdriverStatsExporter; import io.opencensus.exporter.trace.jaeger.JaegerTraceExporter; +import io.opencensus.exporter.trace.zipkin.ZipkinTraceExporter; import io.opencensus.exporter.trace.stackdriver.StackdriverTraceConfiguration; import io.opencensus.exporter.trace.stackdriver.StackdriverTraceExporter; import io.opencensus.trace.AttributeValue; @@ -267,6 +268,18 @@ public final class AdService { } } + private static void initZipkin() { + String zipkinAddr = System.getenv("ZIPKIN_SERVICE_ADDR"); + if (zipkinAddr != null && !zipkinAddr.isEmpty()) { + String zipkinUrl = String.format("%s", zipkinAddr); + // Register Zipkin Tracing. + ZipkinTraceExporter.createAndRegister(zipkinUrl, "adservice"); + logger.info("Zipkin initialization complete."); + } else { + logger.info("Zipkin initialization disabled."); + } + } + /** Main launches the server from the command line. */ public static void main(String[] args) throws IOException, InterruptedException { // Registers all RPC views. @@ -287,7 +300,8 @@ public final class AdService { }) .start(); - // Register Jaeger + // Register Zipkin and Jaeger + initZipkin(); initJaeger(); // Start the RPC server. You shouldn't see any output from gRPC before this. diff --git a/src/checkoutservice/.gitignore b/src/checkoutservice/.gitignore new file mode 100644 index 0000000..21bd246 --- /dev/null +++ b/src/checkoutservice/.gitignore @@ -0,0 +1 @@ +checkoutservice \ No newline at end of file diff --git a/src/checkoutservice/Dockerfile b/src/checkoutservice/Dockerfile index 8f0ea6d..741778a 100644 --- a/src/checkoutservice/Dockerfile +++ b/src/checkoutservice/Dockerfile @@ -1,4 +1,4 @@ -FROM golang:1.12-alpine as builder +FROM golang:1.13-alpine as builder RUN apk add --no-cache ca-certificates git && \ wget -qO/go/bin/dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 && \ chmod +x /go/bin/dep @@ -6,10 +6,6 @@ RUN apk add --no-cache ca-certificates git && \ ENV PROJECT github.com/GoogleCloudPlatform/microservices-demo/src/checkoutservice WORKDIR /go/src/$PROJECT -# restore dependencies -COPY Gopkg.* ./ -RUN dep ensure --vendor-only -v - COPY . . RUN go build -gcflags='-N -l' -o /checkoutservice . diff --git a/src/checkoutservice/go.mod b/src/checkoutservice/go.mod new file mode 100644 index 0000000..b998af8 --- /dev/null +++ b/src/checkoutservice/go.mod @@ -0,0 +1,16 @@ +module github.com/GoogleCloudPlatform/microservices-demo/src/checkoutservice + +go 1.13 + +require ( + contrib.go.opencensus.io/exporter/jaeger v0.2.0 + contrib.go.opencensus.io/exporter/prometheus v0.1.0 + contrib.go.opencensus.io/exporter/zipkin v0.1.1 + github.com/golang/protobuf v1.3.2 + github.com/google/uuid v1.1.1 + github.com/openzipkin/zipkin-go v0.2.2 + github.com/sirupsen/logrus v1.4.2 + go.opencensus.io v0.22.2 + golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa + google.golang.org/grpc v1.27.0 +) diff --git a/src/checkoutservice/go.sum b/src/checkoutservice/go.sum new file mode 100644 index 0000000..a3711c0 --- /dev/null +++ b/src/checkoutservice/go.sum @@ -0,0 +1,146 @@ +cloud.google.com/go v0.26.0/go.mod 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a/src/checkoutservice/main.go +++ b/src/checkoutservice/main.go @@ -18,14 +18,16 @@ import ( "context" "fmt" "net" + "net/http" "os" "time" - "cloud.google.com/go/profiler" - "contrib.go.opencensus.io/exporter/stackdriver" + "contrib.go.opencensus.io/exporter/jaeger" + "contrib.go.opencensus.io/exporter/prometheus" + "contrib.go.opencensus.io/exporter/zipkin" "github.com/google/uuid" + zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http" "github.com/sirupsen/logrus" - "go.opencensus.io/exporter/jaeger" "go.opencensus.io/plugin/ocgrpc" "go.opencensus.io/stats/view" "go.opencensus.io/trace" @@ -40,6 +42,7 @@ import ( const ( listenPort = "5050" + metricsPort = "5051" usdCurrency = "USD" ) @@ -70,7 +73,6 @@ type checkoutService struct { func main() { go initTracing() - go initProfiling("checkoutservice", "1.0.0") port := listenPort if os.Getenv("PORT") != "" { @@ -91,6 +93,10 @@ func main() { if err != nil { log.Fatal(err) } + + // start metrics endpoint + go initPrometheusStats() + srv := grpc.NewServer(grpc.StatsHandler(&ocgrpc.ServerHandler{})) pb.RegisterCheckoutServiceServer(srv, svc) healthpb.RegisterHealthServer(srv, svc) @@ -121,7 +127,40 @@ func initJaegerTracing() { log.Info("jaeger initialization completed.") } -func initStats(exporter *stackdriver.Exporter) { +func initZipkinTracing() { + // start zipkin exporter + // URL to zipkin is like http://zipkin.tcc:9411/api/v2/spans + svcAddr := os.Getenv("ZIPKIN_SERVICE_ADDR") + if svcAddr == "" { + log.Info("zipkin initialization disabled.") + return + } + + reporter := zipkinhttp.NewReporter(svcAddr) + exporter := zipkin.NewExporter(reporter, nil) + trace.RegisterExporter(exporter) + + log.Info("zipkin initialization completed.") +} + +func initPrometheusStats() { + // init the prometheus /metrics endpoint + exporter, err := prometheus.NewExporter(prometheus.Options{}) + if err != nil { + log.Fatal(err) + } + + // register basic views + initStats(exporter) + + metricsURL := fmt.Sprintf(":%s", metricsPort) + http.Handle("/metrics", exporter) + + log.Infof("starting HTTP server at %s", metricsURL) + log.Fatal(http.ListenAndServe(metricsURL, nil)) +} + +func initStats(exporter *prometheus.Exporter) { view.SetReportingPeriod(60 * time.Second) view.RegisterExporter(exporter) if err := view.Register(ocgrpc.DefaultServerViews...); err != nil { @@ -129,55 +168,22 @@ func initStats(exporter *stackdriver.Exporter) { } else { log.Info("Registered default server views") } -} - -func initStackdriverTracing() { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - exporter, err := stackdriver.NewExporter(stackdriver.Options{}) - if err != nil { - log.Infof("failed to initialize stackdriver exporter: %+v", err) - } else { - trace.RegisterExporter(exporter) - log.Info("registered Stackdriver tracing") - - // Register the views to collect server stats. - initStats(exporter) - return - } - d := time.Second * 10 * time.Duration(i) - log.Infof("sleeping %v to retry initializing Stackdriver exporter", d) - time.Sleep(d) + if err := view.Register(ocgrpc.DefaultClientViews...); err != nil { + log.Warn("Error registering default client views") + } else { + log.Info("Registered default client views") } - log.Warn("could not initialize Stackdriver exporter after retrying, giving up") } func initTracing() { - initJaegerTracing() - initStackdriverTracing() -} + // This is a demo app with low QPS. trace.AlwaysSample() is used here + // to make sure traces are available for observation and analysis. + // In a production environment or high QPS setup please use + // trace.ProbabilitySampler set at the desired probability. + trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) -func initProfiling(service, version string) { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - if err := profiler.Start(profiler.Config{ - Service: service, - ServiceVersion: version, - // ProjectID must be set if not running on GCP. - // ProjectID: "my-project", - }); err != nil { - log.Warnf("failed to start profiler: %+v", err) - } else { - log.Info("started Stackdriver profiler") - return - } - d := time.Second * 10 * time.Duration(i) - log.Infof("sleeping %v to retry initializing Stackdriver profiler", d) - time.Sleep(d) - } - log.Warn("could not initialize Stackdriver profiler after retrying, giving up") + initJaegerTracing() + initZipkinTracing() } func mustMapEnv(target *string, envKey string) { diff --git a/src/currencyservice/client.js b/src/currencyservice/client.js index 51e7f23..e57d8df 100644 --- a/src/currencyservice/client.js +++ b/src/currencyservice/client.js @@ -15,11 +15,11 @@ * limitations under the License. * */ -require('@google-cloud/trace-agent').start(); +// require('@google-cloud/trace-agent').start(); const path = require('path'); const grpc = require('grpc'); -const leftPad = require('left-pad'); +const leftPad = require('pad-left'); const pino = require('pino'); const PROTO_PATH = path.join(__dirname, './proto/demo.proto'); @@ -61,6 +61,6 @@ client.convert(request, (err, response) => { if (err) { logger.error(`Error in convert: ${err}`); } else { - logger.log(`Convert: ${_moneyToString(request.from)} to ${_moneyToString(response)}`); + logger.info(`Convert: ${_moneyToString(request.from)} to ${_moneyToString(response)}`); } }); diff --git a/src/currencyservice/package-lock.json b/src/currencyservice/package-lock.json index 1079927..3ecdf88 100644 --- a/src/currencyservice/package-lock.json +++ b/src/currencyservice/package-lock.json @@ -171,6 +171,721 @@ "uuid": "^3.2.1" } }, + "@opencensus/exporter-zipkin": { + "version": "0.0.19", + "resolved": "https://registry.npmjs.org/@opencensus/exporter-zipkin/-/exporter-zipkin-0.0.19.tgz", + "integrity": 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"https://registry.npmjs.org/buffer/-/buffer-5.4.3.tgz", + "integrity": "sha512-zvj65TkFeIt3i6aj5bIvJDzjjQQGs4o/sNoezg1F1kYap9Nu2jcUdpwzRSJTHMMzG0H7bZkn4rNQpImhuxWX2A==", + "requires": { + "base64-js": "^1.0.2", + "ieee754": "^1.1.4" + } + }, "buffer-equal-constant-time": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/buffer-equal-constant-time/-/buffer-equal-constant-time-1.0.1.tgz", @@ -2077,6 +2801,11 @@ "safer-buffer": ">= 2.1.2 < 3" } }, + "ieee754": { + "version": "1.1.13", + "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz", + "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg==" + }, "ignore": { "version": "3.3.10", "resolved": "https://registry.npmjs.org/ignore/-/ignore-3.3.10.tgz", @@ -2669,6 +3398,14 @@ "integrity": "sha512-NuAESUOUMrlIXOfHKzD6bpPu3tYt3xvjNdRIQ+FeT0lNb4K8WR70CaDxhuNguS2XG+GjkyMwOzsN5ZktImfhLA==", "dev": true }, + "object-sizeof": { + "version": "1.5.2", + "resolved": "https://registry.npmjs.org/object-sizeof/-/object-sizeof-1.5.2.tgz", + "integrity": "sha512-5M9MYfLX3GsUv8YVSxypUkjQvpj5p3lX5gSaZCcV5973EqcQYp576vNU/620C1V6UaCdxeYGk3/QzEWz7uLvUQ==", + "requires": { + "buffer": "^5.4.3" + } + }, "object.assign": { "version": "4.1.0", "resolved": "https://registry.npmjs.org/object.assign/-/object.assign-4.1.0.tgz", @@ -2783,6 +3520,14 @@ "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz", "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==" }, + "pad-left": { + "version": "2.1.0", + "resolved": "https://registry.npmjs.org/pad-left/-/pad-left-2.1.0.tgz", + "integrity": "sha1-FuajstRKjhOMsIOMx8tAOk/J6ZQ=", + "requires": { + "repeat-string": "^1.5.4" + } + }, "parse-duration": { "version": "0.1.1", "resolved": "https://registry.npmjs.org/parse-duration/-/parse-duration-0.1.1.tgz", @@ -3113,6 +3858,11 @@ "util-deprecate": "~1.0.1" } }, + "repeat-string": { + "version": "1.6.1", + "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz", + "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=" + }, "request": { "version": "2.87.0", "resolved": "https://registry.npmjs.org/request/-/request-2.87.0.tgz", diff --git a/src/currencyservice/package.json b/src/currencyservice/package.json index 07ca534..18329d3 100644 --- a/src/currencyservice/package.json +++ b/src/currencyservice/package.json @@ -13,9 +13,12 @@ "@google-cloud/profiler": "^2.0.2", "@google-cloud/trace-agent": "4.0.1", "@grpc/proto-loader": "^0.3.0", + "@opencensus/exporter-zipkin": "0.0.19", + "@opencensus/nodejs": "0.0.19", "async": "^1.5.2", "google-protobuf": "^3.0.0", "grpc": "^1.22.2", + "pad-left": "^2.1.0", "pino": "^5.6.2", "request": "^2.87.0", "xml2js": "^0.4.19" diff --git a/src/currencyservice/server.js b/src/currencyservice/server.js index d3e9ad1..946cabd 100644 --- a/src/currencyservice/server.js +++ b/src/currencyservice/server.js @@ -14,20 +14,6 @@ * limitations under the License. */ -require('@google-cloud/profiler').start({ - serviceContext: { - service: 'currencyservice', - version: '1.0.0' - } -}); -require('@google-cloud/trace-agent').start(); -require('@google-cloud/debug-agent').start({ - serviceContext: { - service: 'currencyservice', - version: 'VERSION' - } -}); - const path = require('path'); const grpc = require('grpc'); const pino = require('pino'); @@ -41,6 +27,12 @@ const PORT = process.env.PORT; const shopProto = _loadProto(MAIN_PROTO_PATH).hipstershop; const healthProto = _loadProto(HEALTH_PROTO_PATH).grpc.health.v1; +// tracing stuff +const tracing = require('@opencensus/nodejs'); +const { plugin } = require('@opencensus/instrumentation-grpc'); +const { ZipkinTraceExporter } = require('@opencensus/exporter-zipkin'); +const tracer = setupTracerAndExporters(); + const logger = pino({ name: 'currencyservice-server', messageKey: 'message', @@ -144,6 +136,7 @@ function check (call, callback) { * CurrencyConverter service at the sample server port */ function main () { + logger.info(`Starting gRPC server on port ${PORT}...`); const server = new grpc.Server(); server.addService(shopProto.CurrencyService.service, {getSupportedCurrencies, convert}); @@ -152,4 +145,37 @@ function main () { server.start(); } +function setupTracerAndExporters () { + // grab Zipkin address from env variables + const ZIPKIN_SERVICE_ADDR = process.env['ZIPKIN_SERVICE_ADDR']; + if (!ZIPKIN_SERVICE_ADDR) { + throw Error('Unable to start Zipking, please define ZIPKIN_SERVICE_ADDR'); + } + + const zipkinOptions = { + url: ZIPKIN_SERVICE_ADDR, + serviceName: 'paymentservice-server' + }; + + // Creates Zipkin exporter + const exporter = new ZipkinTraceExporter(zipkinOptions); + + // Starts Stackdriver exporter + tracing.registerExporter(exporter).start(); + + // Starts tracing and set sampling rate + const tracer = tracing.start({ + samplingRate: 1 // For demo purposes, always sample + }).tracer; + + // Defines basedir and version + const basedir = path.dirname(require.resolve('grpc')); + const version = require(path.join(basedir, 'package.json')).version; + + // Enables GRPC plugin: Method that enables the instrumentation patch. + plugin.enable(grpc, tracer, version, /** plugin options */{}, basedir); + + return tracer; +} + main(); diff --git a/src/emailservice/email_server.py b/src/emailservice/email_server.py index 9563b7a..bcfecd1 100644 --- a/src/emailservice/email_server.py +++ b/src/emailservice/email_server.py @@ -28,33 +28,41 @@ import demo_pb2_grpc from grpc_health.v1 import health_pb2 from grpc_health.v1 import health_pb2_grpc -from opencensus.trace.exporters import stackdriver_exporter -from opencensus.trace.ext.grpc import server_interceptor -from opencensus.trace.samplers import always_on + +from opencensus.ext.grpc import server_interceptor +from opencensus.trace.tracer import Tracer +from opencensus.ext.zipkin.trace_exporter import ZipkinExporter +from opencensus.trace.samplers import AlwaysOnSampler +from opencensus.trace import config_integration # import googleclouddebugger import googlecloudprofiler -try: - sampler = always_on.AlwaysOnSampler() - exporter = stackdriver_exporter.StackdriverExporter( - project_id=os.environ.get('GCP_PROJECT_ID'), - transport=AsyncTransport) - tracer_interceptor = server_interceptor.OpenCensusServerInterceptor(sampler, exporter) -except: - tracer_interceptor = server_interceptor.OpenCensusServerInterceptor() +zipkin_service_addr = os.environ["ZIPKIN_SERVICE_ADDR"] +host, port = zipkin_service_addr.split(":") +ze = ZipkinExporter(service_name="emailservice-server", + host_name=host, + port=port, + endpoint='/api/v2/spans') +sampler = AlwaysOnSampler() +tracer = Tracer(exporter=ze, sampler=sampler) -# try: -# googleclouddebugger.enable( -# module='emailserver', -# version='1.0.0' -# ) -# except: -# pass +try: + tracer_interceptor = server_interceptor.OpenCensusServerInterceptor(sampler, ze) +except: + tracer_interceptor = server_interceptor.OpenCensusServerInterceptor() from logger import getJSONLogger logger = getJSONLogger('emailservice-server') +# log the SPAN on the console +config_integration.trace_integrations(['logging']) + +# uncomment to create a test span +# with tracer.span(name='hello'): +# logger.warning('In the span') + + # Loads confirmation email template from file env = Environment( loader=FileSystemLoader('templates'), @@ -171,16 +179,24 @@ def initStackdriverProfiling(): logger.warning("Could not initialize Stackdriver Profiler after retrying, giving up") return +def initZipkinTrace(zipkin_service_addr): + host, port = zipkin_service_addr.split(":") + ze = ZipkinExporter(service_name="emailservice-server", + host_name=host, + port=port, + endpoint='/api/v2/spans') + sampler = AlwaysOnSampler() + tracer = Tracer(exporter=ze, sampler=sampler) + + try: + tracer_interceptor = server_interceptor.OpenCensusServerInterceptor(sampler, ze) + except: + tracer_interceptor = server_interceptor.OpenCensusServerInterceptor() + + + + logger.info("Successfully started Zipkin Traces to " + zipkin_service_addr) + if __name__ == '__main__': logger.info('starting the email service in dummy mode.') - try: - enable_profiler = os.environ["ENABLE_PROFILER"] - if enable_profiler != "1": - raise KeyError() - else: - initStackdriverProfiling() - except KeyError: - logger.info("Skipping Stackdriver Profiler Python agent initialization. Set environment variable ENABLE_PROFILER=1 to enable.") - - start(dummy_mode = True) diff --git a/src/emailservice/requirements.in b/src/emailservice/requirements.in index bb60d5a..01f5eab 100644 --- a/src/emailservice/requirements.in +++ b/src/emailservice/requirements.in @@ -2,6 +2,8 @@ google-api-core==1.6.0 grpcio-health-checking==1.12.1 grpcio==1.16.1 jinja2==2.10 -opencensus[stackdriver]==0.1.10 python-json-logger==0.1.9 google-cloud-profiler==1.0.8 +opencensus==0.7.6 +opencensus-ext-zipkin==0.2.2 +opencensus-ext-grpc \ No newline at end of file diff --git a/src/emailservice/requirements.txt b/src/emailservice/requirements.txt index c0d5346..7ae7698 100644 --- a/src/emailservice/requirements.txt +++ b/src/emailservice/requirements.txt @@ -2,18 +2,16 @@ # This file is autogenerated by pip-compile # To update, run: # -# pip-compile --output-file requirements.txt requirements.in +# pip-compile --output-file=requirements.txt requirements.in # cachetools==3.0.0 # via google-auth certifi==2018.11.29 # via requests chardet==3.0.4 # via requests -google-api-core[grpc]==1.6.0 +google-api-core==1.6.0 google-api-python-client==1.7.8 # via google-cloud-profiler google-auth-httplib2==0.0.3 # via google-api-python-client, google-cloud-profiler google-auth==1.6.2 # via google-api-core, google-api-python-client, google-auth-httplib2, google-cloud-profiler -google-cloud-core==0.29.1 # via google-cloud-trace google-cloud-profiler==1.0.8 -google-cloud-trace==0.20.2 # via opencensus googleapis-common-protos==1.5.5 # via google-api-core grpcio-health-checking==1.12.1 grpcio==1.16.1 @@ -21,7 +19,10 @@ httplib2==0.12.1 # via google-api-python-client, google-auth-httplib2 idna==2.8 # via requests jinja2==2.10 markupsafe==1.1.0 # via jinja2 -opencensus[stackdriver]==0.1.10 +opencensus-context==0.1.1 # via opencensus +opencensus-ext-grpc==0.7.1 +opencensus-ext-zipkin==0.2.2 +opencensus==0.7.6 protobuf==3.6.1 # via google-api-core, google-cloud-profiler, googleapis-common-protos, grpcio-health-checking pyasn1-modules==0.2.3 # via google-auth pyasn1==0.4.5 # via pyasn1-modules, rsa @@ -32,3 +33,6 @@ rsa==4.0 # via google-auth six==1.12.0 # via google-api-core, google-api-python-client, google-auth, grpcio, protobuf uritemplate==3.0.0 # via google-api-python-client urllib3==1.24.1 # via requests + +# The following packages are considered to be unsafe in a requirements file: +# setuptools diff --git a/src/frontend/.gitignore b/src/frontend/.gitignore new file mode 100644 index 0000000..10d4fb7 --- /dev/null +++ b/src/frontend/.gitignore @@ -0,0 +1 @@ +frontend \ No newline at end of file diff --git a/src/frontend/Dockerfile b/src/frontend/Dockerfile index 591a3ae..22b8bb8 100644 --- a/src/frontend/Dockerfile +++ b/src/frontend/Dockerfile @@ -1,4 +1,4 @@ -FROM golang:1.12-alpine as builder +FROM golang:1.13-alpine as builder RUN apk add --no-cache ca-certificates git && \ wget -qO/go/bin/dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 && \ chmod +x /go/bin/dep @@ -6,9 +6,6 @@ RUN apk add --no-cache ca-certificates git && \ ENV PROJECT github.com/GoogleCloudPlatform/microservices-demo/src/frontend WORKDIR /go/src/$PROJECT -# restore dependencies -COPY Gopkg.* ./ -RUN dep ensure --vendor-only -v COPY . . RUN go install . diff --git a/src/frontend/go.mod b/src/frontend/go.mod new file mode 100644 index 0000000..940567f --- /dev/null +++ b/src/frontend/go.mod @@ -0,0 +1,26 @@ +module github.com/GoogleCloudPlatform/microservices-demo/src/frontend + +go 1.13 + +require ( + contrib.go.opencensus.io/exporter/jaeger v0.2.0 + contrib.go.opencensus.io/exporter/prometheus v0.1.0 + contrib.go.opencensus.io/exporter/zipkin v0.1.1 + github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7 // indirect + github.com/golang/protobuf v1.3.2 + github.com/google/go-cmp v0.4.0 // indirect + github.com/google/uuid v1.1.1 + github.com/gorilla/mux v1.7.3 + github.com/kr/pretty v0.1.0 // indirect + github.com/openzipkin/zipkin-go v0.2.2 + github.com/pkg/errors v0.9.1 + github.com/sirupsen/logrus v1.4.2 + go.opencensus.io v0.22.2 + golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa + golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e // indirect + golang.org/x/sys v0.0.0-20200113162924-86b910548bc1 // indirect + google.golang.org/api v0.15.0 // indirect + google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba // indirect + google.golang.org/grpc v1.26.0 + gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect +) diff --git a/src/frontend/go.sum b/src/frontend/go.sum new file mode 100644 index 0000000..8c96113 --- /dev/null +++ b/src/frontend/go.sum @@ -0,0 +1,195 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +contrib.go.opencensus.io/exporter/jaeger v0.2.0 h1:nhTv/Ry3lGmqbJ/JGvCjWxBl5ozRfqo86Ngz59UAlfk= +contrib.go.opencensus.io/exporter/jaeger v0.2.0/go.mod h1:ukdzwIYYHgZ7QYtwVFQUjiT28BJHiMhTERo32s6qVgM= +contrib.go.opencensus.io/exporter/prometheus v0.1.0 h1:SByaIoWwNgMdPSgl5sMqM2KDE5H/ukPWBRo314xiDvg= +contrib.go.opencensus.io/exporter/prometheus v0.1.0/go.mod h1:cGFniUXGZlKRjzOyuZJ6mgB+PgBcCIa79kEKR8YCW+A= +contrib.go.opencensus.io/exporter/zipkin v0.1.1 h1:PR+1zWqY8ceXs1qDQQIlgXe+sdiwCf0n32bH4+Epk8g= +contrib.go.opencensus.io/exporter/zipkin v0.1.1/go.mod h1:GMvdSl3eJ2gapOaLKzTKE3qDgUkJ86k9k3yY2eqwkzc= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo= +github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI= +github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973 h1:xJ4a3vCFaGF/jqvzLMYoU8P317H5OQ+Via4RmuPwCS0= +github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= +github.com/census-instrumentation/opencensus-proto v0.2.1 h1:glEXhBS5PSLLv4IXzLA5yPRVX4bilULVyxxbrfOtDAk= +github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU= 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v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/src/frontend/main.go b/src/frontend/main.go index 5ba9577..16cc89c 100644 --- a/src/frontend/main.go +++ b/src/frontend/main.go @@ -21,18 +21,21 @@ import ( "os" "time" - "cloud.google.com/go/profiler" - "contrib.go.opencensus.io/exporter/stackdriver" "github.com/gorilla/mux" "github.com/pkg/errors" "github.com/sirupsen/logrus" - "go.opencensus.io/exporter/jaeger" + "go.opencensus.io/plugin/ocgrpc" "go.opencensus.io/plugin/ochttp" "go.opencensus.io/plugin/ochttp/propagation/b3" "go.opencensus.io/stats/view" "go.opencensus.io/trace" "google.golang.org/grpc" + + "contrib.go.opencensus.io/exporter/jaeger" + "contrib.go.opencensus.io/exporter/prometheus" + "contrib.go.opencensus.io/exporter/zipkin" + zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http" ) const ( @@ -94,7 +97,6 @@ func main() { } log.Out = os.Stdout - go initProfiling(log, "frontend", "1.0.0") go initTracing(log) srvPort := port @@ -132,6 +134,9 @@ func main() { r.HandleFunc("/robots.txt", func(w http.ResponseWriter, _ *http.Request) { fmt.Fprint(w, "User-agent: *\nDisallow: /") }) r.HandleFunc("/_healthz", func(w http.ResponseWriter, _ *http.Request) { fmt.Fprint(w, "ok") }) + // also init the prometheus handler + initPrometheusStats(log, r) + var handler http.Handler = r handler = &logHandler{log: log, next: handler} // add logging handler = ensureSessionID(handler) // add session ID @@ -166,7 +171,38 @@ func initJaegerTracing(log logrus.FieldLogger) { log.Info("jaeger initialization completed.") } -func initStats(log logrus.FieldLogger, exporter *stackdriver.Exporter) { +func initZipkinTracing(log logrus.FieldLogger) { + // start zipkin exporter + // URL to zipkin is like http://zipkin.tcc:9411/api/v2/spans + svcAddr := os.Getenv("ZIPKIN_SERVICE_ADDR") + if svcAddr == "" { + log.Info("zipkin initialization disabled.") + return + } + + reporter := zipkinhttp.NewReporter(svcAddr) + exporter := zipkin.NewExporter(reporter, nil) + trace.RegisterExporter(exporter) + + log.Info("zipkin initialization completed.") +} + +func initPrometheusStats(log logrus.FieldLogger, r *mux.Router) { + // init the prometheus /metrics endpoint + exporter, err := prometheus.NewExporter(prometheus.Options{}) + if err != nil { + log.Fatal(err) + } + + // register basic views + initStats(log, exporter) + + // init the prometheus /metrics endpoint + r.Handle("/metrics", exporter).Methods(http.MethodGet, http.MethodHead) + log.Info("prometheus metrics initialization completed.") +} + +func initStats(log logrus.FieldLogger, exporter *prometheus.Exporter) { view.SetReportingPeriod(60 * time.Second) view.RegisterExporter(exporter) if err := view.Register(ochttp.DefaultServerViews...); err != nil { @@ -181,32 +217,6 @@ func initStats(log logrus.FieldLogger, exporter *stackdriver.Exporter) { } } -func initStackdriverTracing(log logrus.FieldLogger) { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - log = log.WithField("retry", i) - exporter, err := stackdriver.NewExporter(stackdriver.Options{}) - if err != nil { - // log.Warnf is used since there are multiple backends (stackdriver & jaeger) - // to store the traces. In production setup most likely you would use only one backend. - // In that case you should use log.Fatalf. - log.Warnf("failed to initialize Stackdriver exporter: %+v", err) - } else { - trace.RegisterExporter(exporter) - log.Info("registered Stackdriver tracing") - - // Register the views to collect server stats. - initStats(log, exporter) - return - } - d := time.Second * 20 * time.Duration(i) - log.Debugf("sleeping %v to retry initializing Stackdriver exporter", d) - time.Sleep(d) - } - log.Warn("could not initialize Stackdriver exporter after retrying, giving up") -} - func initTracing(log logrus.FieldLogger) { // This is a demo app with low QPS. trace.AlwaysSample() is used here // to make sure traces are available for observation and analysis. @@ -215,31 +225,7 @@ func initTracing(log logrus.FieldLogger) { trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) initJaegerTracing(log) - initStackdriverTracing(log) - -} - -func initProfiling(log logrus.FieldLogger, service, version string) { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - log = log.WithField("retry", i) - if err := profiler.Start(profiler.Config{ - Service: service, - ServiceVersion: version, - // ProjectID must be set if not running on GCP. - // ProjectID: "my-project", - }); err != nil { - log.Warnf("warn: failed to start profiler: %+v", err) - } else { - log.Info("started Stackdriver profiler") - return - } - d := time.Second * 10 * time.Duration(i) - log.Debugf("sleeping %v to retry initializing Stackdriver profiler", d) - time.Sleep(d) - } - log.Warn("warning: could not initialize Stackdriver profiler after retrying, giving up") + initZipkinTracing(log) } func mustMapEnv(target *string, envKey string) { diff --git a/src/loadgenerator/loadgen.sh b/src/loadgenerator/loadgen.sh index 4a0f35e..6bd7853 100755 --- a/src/loadgenerator/loadgen.sh +++ b/src/loadgenerator/loadgen.sh @@ -14,22 +14,43 @@ # See the License for the specific language governing permissions and # limitations under the License. -set -e +set -ex + trap "exit" TERM if [[ -z "${FRONTEND_ADDR}" ]]; then - echo >&2 "FRONTEND_ADDR not specified" + echo >&2 "FRONTEND_ADDR must be http(s)://:" exit 1 fi -set -x +# split the FRONTEND_ADDR +pattern='^(([[:alnum:]]+)://)?(([[:alnum:]]+)@)?([^:^@]+)(:([[:digit:]]+))?$' +if [[ "${FRONTEND_ADDR}" =~ $pattern ]]; then + proto=${BASH_REMATCH[2]} + user=${BASH_REMATCH[4]} + host=${BASH_REMATCH[5]} + port=${BASH_REMATCH[7]} +fi + +# Add SNI options if an IP address is provided - don't rely on DNS +SNI_OPTS="" +if [[ -n "${FRONTEND_IP}" ]]; then + + # set the resolution in the host file + echo "${FRONTEND_IP} ${host}" >> /etc/hosts + + ## also tell curl to resolve the IP + SNI_OPTS="--resolve ${host}:${port}:${FRONTEND_IP}" +fi + + # if one request to the frontend fails, then exit -STATUSCODE=$(curl --silent --output /dev/stderr --write-out "%{http_code}" http://${FRONTEND_ADDR}) +STATUSCODE=$(curl --silent --output /dev/stderr --write-out "%{http_code}" ${SNI_OPTS} ${FRONTEND_ADDR}) if test $STATUSCODE -ne 200; then echo "Error: Could not reach frontend - Status code: ${STATUSCODE}" exit 1 fi # else, run loadgen -locust --host="http://${FRONTEND_ADDR}" --no-web -c "${USERS:-10}" 2>&1 +locust --host="${FRONTEND_ADDR}" --no-web -c "${USERS:-10}" 2>&1 diff --git a/src/loadgenerator/locustfile.py b/src/loadgenerator/locustfile.py index f1f98ea..73e4825 100644 --- a/src/loadgenerator/locustfile.py +++ b/src/loadgenerator/locustfile.py @@ -67,6 +67,7 @@ def checkout(l): class UserBehavior(TaskSet): def on_start(self): + self.client.verify = False index(self) tasks = {index: 1, diff --git a/src/paymentservice/index.js b/src/paymentservice/index.js index 661bc82..5ed8a12 100644 --- a/src/paymentservice/index.js +++ b/src/paymentservice/index.js @@ -16,19 +16,21 @@ 'use strict'; -require('@google-cloud/profiler').start({ - serviceContext: { - service: 'paymentservice', - version: '1.0.0' - } -}); -require('@google-cloud/trace-agent').start(); -require('@google-cloud/debug-agent').start({ - serviceContext: { - service: 'paymentservice', - version: 'VERSION' - } -}); +// require('@google-cloud/profiler').start({ +// serviceContext: { +// service: 'paymentservice', +// version: '1.0.0' +// } +// }); +// require('@google-cloud/trace-agent').start(); +// require('@google-cloud/debug-agent').start({ +// serviceContext: { +// service: 'paymentservice', +// version: 'VERSION' +// } +// }); + + const path = require('path'); const HipsterShopServer = require('./server'); diff --git a/src/paymentservice/package-lock.json b/src/paymentservice/package-lock.json index 5549571..bab49ac 100644 --- a/src/paymentservice/package-lock.json +++ b/src/paymentservice/package-lock.json @@ -184,6 +184,716 @@ "uuid": "^3.2.1" } }, + "@opencensus/exporter-zipkin": { + "version": "0.0.19", + "resolved": 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"https://registry.npmjs.org/object.assign/-/object.assign-4.1.0.tgz", diff --git a/src/paymentservice/package.json b/src/paymentservice/package.json index 118b741..0d8d5f6 100644 --- a/src/paymentservice/package.json +++ b/src/paymentservice/package.json @@ -15,6 +15,8 @@ "@google-cloud/profiler": "^2.0.2", "@google-cloud/trace-agent": "4.0.1", "@grpc/proto-loader": "^0.1.0", + "@opencensus/exporter-zipkin": "0.0.19", + "@opencensus/nodejs": "0.0.19", "grpc": "^1.22.2", "pino": "^5.6.2", "simple-card-validator": "^1.1.0", diff --git a/src/paymentservice/server.js b/src/paymentservice/server.js index 152a8d1..14d68b0 100644 --- a/src/paymentservice/server.js +++ b/src/paymentservice/server.js @@ -19,6 +19,12 @@ const protoLoader = require('@grpc/proto-loader'); const charge = require('./charge'); +// tracing stuff +const tracing = require('@opencensus/nodejs'); +const { plugin } = require('@opencensus/instrumentation-grpc'); +const { ZipkinTraceExporter } = require('@opencensus/exporter-zipkin'); +const tracer = setupTracerAndExporters(); + const logger = pino({ name: 'paymentservice-server', messageKey: 'message', @@ -26,6 +32,40 @@ const logger = pino({ useLevelLabels: true }); + +function setupTracerAndExporters () { + // grab Zipkin address from env variables + const ZIPKIN_SERVICE_ADDR = process.env['ZIPKIN_SERVICE_ADDR']; + if (!ZIPKIN_SERVICE_ADDR) { + throw Error('Unable to start Zipking, please define ZIPKIN_SERVICE_ADDR'); + } + + const zipkinOptions = { + url: ZIPKIN_SERVICE_ADDR, + serviceName: 'paymentservice-server' + }; + + // Creates Zipkin exporter + const exporter = new ZipkinTraceExporter(zipkinOptions); + + // Starts Stackdriver exporter + tracing.registerExporter(exporter).start(); + + // Starts tracing and set sampling rate + const tracer = tracing.start({ + samplingRate: 1 // For demo purposes, always sample + }).tracer; + + // Defines basedir and version + const basedir = path.dirname(require.resolve('grpc')); + const version = require(path.join(basedir, 'package.json')).version; + + // Enables GRPC plugin: Method that enables the instrumentation patch. + plugin.enable(grpc, tracer, version, /** plugin options */{}, basedir); + + return tracer; +} + class HipsterShopServer { constructor (protoRoot, port = HipsterShopServer.PORT) { this.port = port; @@ -96,7 +136,7 @@ class HipsterShopServer { check: HipsterShopServer.CheckHandler.bind(this) } ); - } + }; } HipsterShopServer.PORT = process.env.PORT; diff --git a/src/productcatalogservice/.gitignore b/src/productcatalogservice/.gitignore new file mode 100644 index 0000000..c93f65a --- /dev/null +++ b/src/productcatalogservice/.gitignore @@ -0,0 +1 @@ +productcatalogservice \ No newline at end of file diff --git a/src/productcatalogservice/Dockerfile b/src/productcatalogservice/Dockerfile index b8f60dd..98bfe7e 100644 --- a/src/productcatalogservice/Dockerfile +++ b/src/productcatalogservice/Dockerfile @@ -1,4 +1,4 @@ -FROM golang:1.12-alpine AS builder +FROM golang:1.13-alpine AS builder RUN apk add --no-cache ca-certificates git && \ wget -qO/go/bin/dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 && \ chmod +x /go/bin/dep @@ -6,10 +6,6 @@ RUN apk add --no-cache ca-certificates git && \ ENV PROJECT github.com/GoogleCloudPlatform/microservices-demo/src/productcatalogservice WORKDIR /go/src/$PROJECT -# restore dependencies -COPY Gopkg.* ./ -RUN dep ensure --vendor-only -v - COPY . . RUN go build -o /productcatalogservice . diff --git a/src/productcatalogservice/go.mod b/src/productcatalogservice/go.mod new file mode 100644 index 0000000..65566df --- /dev/null +++ b/src/productcatalogservice/go.mod @@ -0,0 +1,18 @@ +module github.com/GoogleCloudPlatform/microservices-demo/src/productcatalogservice + +go 1.13 + +require ( + cloud.google.com/go v0.52.0 + contrib.go.opencensus.io/exporter/jaeger v0.2.0 + contrib.go.opencensus.io/exporter/prometheus v0.1.0 + contrib.go.opencensus.io/exporter/stackdriver v0.12.9 + contrib.go.opencensus.io/exporter/zipkin v0.1.1 + github.com/golang/protobuf v1.3.2 + github.com/google/go-cmp v0.4.0 + github.com/openzipkin/zipkin-go v0.2.2 + github.com/sirupsen/logrus v1.4.2 + go.opencensus.io v0.22.2 + golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa + google.golang.org/grpc v1.27.0 +) diff --git a/src/productcatalogservice/go.sum b/src/productcatalogservice/go.sum new file mode 100644 index 0000000..ee07f58 --- /dev/null +++ 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b/src/productcatalogservice/server.go index ab39d70..86480bc 100644 --- a/src/productcatalogservice/server.go +++ b/src/productcatalogservice/server.go @@ -21,6 +21,7 @@ import ( "fmt" "io/ioutil" "net" + "net/http" "os" "os/signal" "strings" @@ -31,17 +32,19 @@ import ( pb "github.com/GoogleCloudPlatform/microservices-demo/src/productcatalogservice/genproto" healthpb "google.golang.org/grpc/health/grpc_health_v1" - "cloud.google.com/go/profiler" - "contrib.go.opencensus.io/exporter/stackdriver" "github.com/golang/protobuf/jsonpb" "github.com/sirupsen/logrus" - "go.opencensus.io/exporter/jaeger" "go.opencensus.io/plugin/ocgrpc" "go.opencensus.io/stats/view" "go.opencensus.io/trace" "google.golang.org/grpc" "google.golang.org/grpc/codes" "google.golang.org/grpc/status" + + "contrib.go.opencensus.io/exporter/jaeger" + "contrib.go.opencensus.io/exporter/prometheus" + "contrib.go.opencensus.io/exporter/zipkin" + zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http" ) var ( @@ -50,7 +53,8 @@ var ( log *logrus.Logger extraLatency time.Duration - port = "3550" + port = "3550" + metricsPort = "3551" reloadCatalog bool ) @@ -75,7 +79,6 @@ func init() { func main() { go initTracing() - go initProfiling("productcatalogservice", "1.0.0") flag.Parse() // set injected latency @@ -111,6 +114,12 @@ func main() { } log.Infof("starting grpc server at :%s", port) run(port) + + if os.Getenv("METRICSPORT") != "" { + metricsPort = os.Getenv("METRICSPORT") + } + + initPrometheusStats() select {} } @@ -148,7 +157,39 @@ func initJaegerTracing() { log.Info("jaeger initialization completed.") } -func initStats(exporter *stackdriver.Exporter) { +func initZipkinTracing() { + // start zipkin exporter + // URL to zipkin is like http://zipkin.tcc:9411/api/v2/spans + svcAddr := os.Getenv("ZIPKIN_SERVICE_ADDR") + if svcAddr == "" { + log.Info("zipkin initialization disabled. Set ZIPKIN_SERVICE_ADDR=: to enable") + return + } + + reporter := zipkinhttp.NewReporter(fmt.Sprintf("http://%s/api/v2/spans", svcAddr)) + exporter := zipkin.NewExporter(reporter, nil) + trace.RegisterExporter(exporter) + + log.Info("zipkin initialization completed.") +} + +func initPrometheusStats() { + // init the prometheus /metrics endpoint + exporter, err := prometheus.NewExporter(prometheus.Options{}) + if err != nil { + log.Fatal(err) + } + + // register basic views + initStats(exporter) + + metricsURL := fmt.Sprintf(":%s", metricsPort) + http.Handle("/metrics", exporter) + log.Infof("starting HTTP server at %s", metricsURL) + log.Fatal(http.ListenAndServe(metricsURL, nil)) +} + +func initStats(exporter *prometheus.Exporter) { view.SetReportingPeriod(60 * time.Second) view.RegisterExporter(exporter) if err := view.Register(ocgrpc.DefaultServerViews...); err != nil { @@ -158,54 +199,11 @@ func initStats(exporter *stackdriver.Exporter) { } } -func initStackdriverTracing() { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - exporter, err := stackdriver.NewExporter(stackdriver.Options{}) - if err != nil { - log.Warnf("failed to initialize Stackdriver exporter: %+v", err) - } else { - trace.RegisterExporter(exporter) - trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) - log.Info("registered Stackdriver tracing") - - // Register the views to collect server stats. - initStats(exporter) - return - } - d := time.Second * 10 * time.Duration(i) - log.Infof("sleeping %v to retry initializing Stackdriver exporter", d) - time.Sleep(d) - } - log.Warn("could not initialize Stackdriver exporter after retrying, giving up") -} - func initTracing() { - initJaegerTracing() - initStackdriverTracing() -} + trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) -func initProfiling(service, version string) { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - if err := profiler.Start(profiler.Config{ - Service: service, - ServiceVersion: version, - // ProjectID must be set if not running on GCP. - // ProjectID: "my-project", - }); err != nil { - log.Warnf("failed to start profiler: %+v", err) - } else { - log.Info("started Stackdriver profiler") - return - } - d := time.Second * 10 * time.Duration(i) - log.Infof("sleeping %v to retry initializing Stackdriver profiler", d) - time.Sleep(d) - } - log.Warn("could not initialize Stackdriver profiler after retrying, giving up") + initJaegerTracing() + initZipkinTracing() } type productCatalog struct{} diff --git a/src/shippingservice/.gitignore b/src/shippingservice/.gitignore new file mode 100644 index 0000000..f388433 --- /dev/null +++ b/src/shippingservice/.gitignore @@ -0,0 +1 @@ +shippingservice \ No newline at end of file diff --git a/src/shippingservice/Dockerfile b/src/shippingservice/Dockerfile index 80ac159..931332b 100644 --- a/src/shippingservice/Dockerfile +++ b/src/shippingservice/Dockerfile @@ -1,4 +1,4 @@ -FROM golang:1.12-alpine as builder +FROM golang:1.13-alpine as builder RUN apk add --no-cache ca-certificates git && \ wget -qO/go/bin/dep https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 && \ chmod +x /go/bin/dep @@ -6,9 +6,6 @@ RUN apk add --no-cache ca-certificates git && \ ENV PROJECT github.com/GoogleCloudPlatform/microservices-demo/src/shippingservice WORKDIR /go/src/$PROJECT -# restore dependencies -COPY Gopkg.* ./ -RUN dep ensure --vendor-only -v COPY . . RUN go install . diff --git a/src/shippingservice/README.md b/src/shippingservice/README.md index a91934e..c50a4c2 100644 --- a/src/shippingservice/README.md +++ b/src/shippingservice/README.md @@ -4,9 +4,7 @@ The Shipping service provides price quote, tracking IDs, and the impression of o ## Local -Run the following command to restore dependencies to `vendor/` directory: - - dep ensure --vendor-only +Now using Go 1.13 Modules. just use `go build` ## Build diff --git a/src/shippingservice/go.mod b/src/shippingservice/go.mod new file mode 100644 index 0000000..2bcf9a3 --- /dev/null +++ b/src/shippingservice/go.mod @@ -0,0 +1,17 @@ +module github.com/GoogleCloudPlatform/microservices-demo/src/shippingservice + +go 1.13 + +require ( + cloud.google.com/go v0.52.0 + contrib.go.opencensus.io/exporter/jaeger v0.2.0 + contrib.go.opencensus.io/exporter/prometheus v0.1.0 + contrib.go.opencensus.io/exporter/stackdriver v0.12.9 + contrib.go.opencensus.io/exporter/zipkin v0.1.1 + github.com/golang/protobuf v1.3.2 + github.com/openzipkin/zipkin-go v0.2.2 + github.com/sirupsen/logrus v1.4.2 + go.opencensus.io v0.22.2 + golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa + google.golang.org/grpc v1.27.0 +) diff --git a/src/shippingservice/go.sum b/src/shippingservice/go.sum new file mode 100644 index 0000000..ee07f58 --- /dev/null +++ b/src/shippingservice/go.sum @@ -0,0 +1,270 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= +cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= +cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= +cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= 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h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= +rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= diff --git a/src/shippingservice/main.go b/src/shippingservice/main.go index 29a93d5..6181cc7 100644 --- a/src/shippingservice/main.go +++ b/src/shippingservice/main.go @@ -17,28 +17,32 @@ package main import ( "fmt" "net" + "net/http" "os" "time" - "cloud.google.com/go/profiler" - "contrib.go.opencensus.io/exporter/stackdriver" "github.com/sirupsen/logrus" - "go.opencensus.io/exporter/jaeger" - "go.opencensus.io/plugin/ocgrpc" - "go.opencensus.io/stats/view" - "go.opencensus.io/trace" "golang.org/x/net/context" "google.golang.org/grpc" "google.golang.org/grpc/codes" "google.golang.org/grpc/reflection" "google.golang.org/grpc/status" + "contrib.go.opencensus.io/exporter/jaeger" + "contrib.go.opencensus.io/exporter/prometheus" + "contrib.go.opencensus.io/exporter/zipkin" + zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http" + "go.opencensus.io/plugin/ocgrpc" + "go.opencensus.io/stats/view" + "go.opencensus.io/trace" + pb "github.com/GoogleCloudPlatform/microservices-demo/src/shippingservice/genproto" healthpb "google.golang.org/grpc/health/grpc_health_v1" ) const ( defaultPort = "50051" + metricsPort = "50052" ) var log *logrus.Logger @@ -59,7 +63,6 @@ func init() { func main() { go initTracing() - go initProfiling("shippingservice", "1.0.0") port := defaultPort if value, ok := os.LookupEnv("PORT"); ok { @@ -77,6 +80,9 @@ func main() { healthpb.RegisterHealthServer(srv, svc) log.Infof("Shipping Service listening on port %s", port) + // start metrics server + go initPrometheusStats() + // Register reflection service on gRPC server. reflection.Register(srv) if err := srv.Serve(lis); err != nil { @@ -157,7 +163,40 @@ func initJaegerTracing() { log.Info("jaeger initialization completed.") } -func initStats(exporter *stackdriver.Exporter) { +func initZipkinTracing() { + // start zipkin exporter + // URL to zipkin is like http://zipkin.tcc:9411/api/v2/spans + svcAddr := os.Getenv("ZIPKIN_SERVICE_ADDR") + if svcAddr == "" { + log.Info("zipkin initialization disabled.") + return + } + + reporter := zipkinhttp.NewReporter(svcAddr) + exporter := zipkin.NewExporter(reporter, nil) + trace.RegisterExporter(exporter) + + log.Info("zipkin initialization completed.") +} + +func initPrometheusStats() { + // init the prometheus /metrics endpoint + exporter, err := prometheus.NewExporter(prometheus.Options{}) + if err != nil { + log.Fatal(err) + } + + // register basic views + initStats(exporter) + + metricsURL := fmt.Sprintf(":%s", metricsPort) + http.Handle("/metrics", exporter) + + log.Infof("starting HTTP server at %s", metricsURL) + log.Fatal(http.ListenAndServe(metricsURL, nil)) +} + +func initStats(exporter *prometheus.Exporter) { view.SetReportingPeriod(60 * time.Second) view.RegisterExporter(exporter) if err := view.Register(ocgrpc.DefaultServerViews...); err != nil { @@ -167,52 +206,13 @@ func initStats(exporter *stackdriver.Exporter) { } } -func initStackdriverTracing() { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - exporter, err := stackdriver.NewExporter(stackdriver.Options{}) - if err != nil { - log.Warnf("failed to initialize Stackdriver exporter: %+v", err) - } else { - trace.RegisterExporter(exporter) - trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) - log.Info("registered Stackdriver tracing") - - // Register the views to collect server stats. - initStats(exporter) - return - } - d := time.Second * 10 * time.Duration(i) - log.Infof("sleeping %v to retry initializing Stackdriver exporter", d) - time.Sleep(d) - } - log.Warn("could not initialize Stackdriver exporter after retrying, giving up") -} - func initTracing() { - initJaegerTracing() - initStackdriverTracing() -} + // This is a demo app with low QPS. trace.AlwaysSample() is used here + // to make sure traces are available for observation and analysis. + // In a production environment or high QPS setup please use + // trace.ProbabilitySampler set at the desired probability. + trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()}) -func initProfiling(service, version string) { - // TODO(ahmetb) this method is duplicated in other microservices using Go - // since they are not sharing packages. - for i := 1; i <= 3; i++ { - if err := profiler.Start(profiler.Config{ - Service: service, - ServiceVersion: version, - // ProjectID must be set if not running on GCP. - // ProjectID: "my-project", - }); err != nil { - log.Warnf("failed to start profiler: %+v", err) - } else { - log.Info("started Stackdriver profiler") - return - } - d := time.Second * 10 * time.Duration(i) - log.Infof("sleeping %v to retry initializing Stackdriver profiler", d) - time.Sleep(d) - } - log.Warn("could not initialize Stackdriver profiler after retrying, giving up") + initJaegerTracing() + initZipkinTracing() }