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log: change log format to JSON payload for better log in Stackdriver

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change the log format in Go written service from text payload to
JSON payload using 3rd party logging library (logrus).

https://cloud.google.com/logging/docs/structured-logging
33a1e118e1/json_formatter.go (L40-L49)

Effected services are frontend, productcatalogservice, checkoutservice,
and shippinservice.

Also change target container registry and locust scenario for testing.
This commit is contained in:
Yoshi Yamaguchi 2018-09-24 21:04:36 +09:00
parent 1bab006af1
commit c6e7b80a32
25 changed files with 242 additions and 97 deletions
Download patch file Download diff file Expand all files Collapse all files

2
kubernetes-manifests/adservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/adservice
image: gcr.io/yoshifumi-cloud-demo/adservice
ports:
- containerPort: 9555
env:

2
kubernetes-manifests/cartservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/cartservice
image: gcr.io/yoshifumi-cloud-demo/cartservice
ports:
- containerPort: 7070
env:

2
kubernetes-manifests/checkoutservice.yaml
View file

@ -24,7 +24,7 @@ spec:
spec:
containers:
- name: server
image: gcr.io/microservices-demo-app/checkoutservice
image: gcr.io/yoshifumi-cloud-demo/checkoutservice
ports:
- containerPort: 5050
readinessProbe:

2
kubernetes-manifests/currencyservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/currencyservice
image: gcr.io/yoshifumi-cloud-demo/currencyservice
ports:
- name: grpc
containerPort: 7000

2
kubernetes-manifests/emailservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/emailservice
image: gcr.io/yoshifumi-cloud-demo/emailservice
ports:
- containerPort: 8080
readinessProbe:

2
kubernetes-manifests/frontend.yaml
View file

@ -24,7 +24,7 @@ spec:
spec:
containers:
- name: server
image: gcr.io/microservices-demo-app/frontend
image: gcr.io/yoshifumi-cloud-demo/frontend
ports:
- containerPort: 8080
readinessProbe:

2
kubernetes-manifests/loadgenerator.yaml
View file

@ -38,7 +38,7 @@ spec:
value: "frontend:80"
containers:
- name: main
image: gcr.io/microservices-demo-app/loadgenerator
image: gcr.io/yoshifumi-cloud-demo/loadgenerator
env:
- name: FRONTEND_ADDR
value: "frontend:80"

2
kubernetes-manifests/paymentservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/paymentservice
image: gcr.io/yoshifumi-cloud-demo/paymentservice
ports:
- containerPort: 50051
readinessProbe:

2
kubernetes-manifests/productcatalogservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/productcatalogservice
image: gcr.io/yoshifumi-cloud-demo/productcatalogservice
ports:
- containerPort: 3550
readinessProbe:

2
kubernetes-manifests/recommendationservice.yaml
View file

@ -25,7 +25,7 @@ spec:
terminationGracePeriodSeconds: 5
containers:
- name: server
image: gcr.io/microservices-demo-app/recommendationservice
image: gcr.io/yoshifumi-cloud-demo/recommendationservice
ports:
- containerPort: 8080
readinessProbe:

2
kubernetes-manifests/shippingservice.yaml
View file

@ -24,7 +24,7 @@ spec:
spec:
containers:
- name: server
image: gcr.io/microservices-demo-app/shippingservice
image: gcr.io/yoshifumi-cloud-demo/shippingservice
ports:
- containerPort: 50051
readinessProbe:

22
skaffold.yaml
View file

@ -18,27 +18,27 @@ build:
tagPolicy:
gitCommit: {}
artifacts:
- imageName: gcr.io/microservices-demo-app/emailservice
- imageName: gcr.io/yoshifumi-cloud-demo/emailservice
workspace: src/emailservice
- imageName: gcr.io/microservices-demo-app/productcatalogservice
- imageName: gcr.io/yoshifumi-cloud-demo/productcatalogservice
workspace: src/productcatalogservice
- imageName: gcr.io/microservices-demo-app/recommendationservice
- imageName: gcr.io/yoshifumi-cloud-demo/recommendationservice
workspace: src/recommendationservice
- imageName: gcr.io/microservices-demo-app/shippingservice
- imageName: gcr.io/yoshifumi-cloud-demo/shippingservice
workspace: src/shippingservice
- imageName: gcr.io/microservices-demo-app/checkoutservice
- imageName: gcr.io/yoshifumi-cloud-demo/checkoutservice
workspace: src/checkoutservice
- imageName: gcr.io/microservices-demo-app/paymentservice
- imageName: gcr.io/yoshifumi-cloud-demo/paymentservice
workspace: src/paymentservice
- imageName: gcr.io/microservices-demo-app/currencyservice
- imageName: gcr.io/yoshifumi-cloud-demo/currencyservice
workspace: src/currencyservice
- imageName: gcr.io/microservices-demo-app/cartservice
- imageName: gcr.io/yoshifumi-cloud-demo/cartservice
workspace: src/cartservice
- imageName: gcr.io/microservices-demo-app/frontend
- imageName: gcr.io/yoshifumi-cloud-demo/frontend
workspace: src/frontend
- imageName: gcr.io/microservices-demo-app/loadgenerator
- imageName: gcr.io/yoshifumi-cloud-demo/loadgenerator
workspace: src/loadgenerator
- imageName: gcr.io/microservices-demo-app/adservice
- imageName: gcr.io/yoshifumi-cloud-demo/adservice
workspace: src/adservice
deploy:
kubectl:

16
src/checkoutservice/Gopkg.lock generated
View file

@ -56,6 +56,14 @@
revision = "317e0006254c44a0ac427cc52a0e083ff0b9622f"
version = "v2.0.0"
[[projects]]
digest = "1:d867dfa6751c8d7a435821ad3b736310c2ed68945d05b50fb9d23aee0540c8cc"
name = "github.com/sirupsen/logrus"
packages = ["."]
pruneopts = "UT"
revision = "3e01752db0189b9157070a0e1668a620f9a85da2"
version = "v1.0.6"
[[projects]]
name = "go.opencensus.io"
packages = [
@ -77,6 +85,14 @@
revision = "b11f239c032624b045c4c2bfd3d1287b4012ce89"
version = "v0.16.0"
[[projects]]
branch = "master"
digest = "1:3f3a05ae0b95893d90b9b3b5afdb79a9b3d96e4e36e099d841ae602e4aca0da8"
name = "golang.org/x/crypto"
packages = ["ssh/terminal"]
pruneopts = "UT"
revision = "0e37d006457bf46f9e6692014ba72ef82c33022c"
[[projects]]
branch = "master"
name = "golang.org/x/net"

4
src/checkoutservice/Gopkg.toml
View file

@ -41,6 +41,10 @@
name = "github.com/google/uuid"
version = "1.0.0"
[[constraint]]
name = "github.com/sirupsen/logrus"
version = "1.0.6"
[[constraint]]
name = "go.opencensus.io"
version = "0.16.0"

53
src/checkoutservice/main.go
View file

@ -17,7 +17,6 @@ package main
import (
"context"
"fmt"
"log"
"net"
"os"
"time"
@ -25,6 +24,7 @@ import (
"cloud.google.com/go/profiler"
"contrib.go.opencensus.io/exporter/stackdriver"
"github.com/google/uuid"
"github.com/sirupsen/logrus"
"go.opencensus.io/plugin/ocgrpc"
"go.opencensus.io/stats/view"
"go.opencensus.io/trace"
@ -42,6 +42,22 @@ const (
usdCurrency = "USD"
)
var log *logrus.Logger
func init() {
log = logrus.New()
log.Level = logrus.DebugLevel
log.Formatter = &logrus.JSONFormatter{
FieldMap: logrus.FieldMap{
logrus.FieldKeyTime: "timestamp",
logrus.FieldKeyLevel: "severity",
logrus.FieldKeyMsg: "message",
},
TimestampFormat: time.RFC3339Nano,
}
log.Out = os.Stdout
}
type checkoutService struct {
productCatalogSvcAddr string
cartSvcAddr string
@ -68,7 +84,7 @@ func main() {
mustMapEnv(&svc.emailSvcAddr, "EMAIL_SERVICE_ADDR")
mustMapEnv(&svc.paymentSvcAddr, "PAYMENT_SERVICE_ADDR")
log.Printf("service config: %+v", svc)
log.Infof("service config: %+v", svc)
lis, err := net.Listen("tcp", fmt.Sprintf(":%s", port))
if err != nil {
@ -77,16 +93,17 @@ func main() {
srv := grpc.NewServer(grpc.StatsHandler(&ocgrpc.ServerHandler{}))
pb.RegisterCheckoutServiceServer(srv, svc)
healthpb.RegisterHealthServer(srv, svc)
log.Printf("starting to listen on tcp: %q", lis.Addr().String())
log.Fatal(srv.Serve(lis))
log.Infof("starting to listen on tcp: %q", lis.Addr().String())
err = srv.Serve(lis)
log.Fatal(err)
}
func initStats(exporter *stackdriver.Exporter) {
view.RegisterExporter(exporter)
if err := view.Register(ocgrpc.DefaultServerViews...); err != nil {
log.Printf("Error registering default server views")
log.Warn("Error registering default server views")
} else {
log.Printf("Registered default server views")
log.Info("Registered default server views")
}
}
@ -96,21 +113,21 @@ func initTracing() {
for i := 1; i <= 3; i++ {
exporter, err := stackdriver.NewExporter(stackdriver.Options{})
if err != nil {
log.Printf("info: failed to initialize stackdriver exporter: %+v", err)
log.Infof("failed to initialize stackdriver exporter: %+v", err)
} else {
trace.RegisterExporter(exporter)
trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
log.Print("registered stackdriver tracing")
log.Info("registered stackdriver tracing")
// Register the views to collect server stats.
initStats(exporter)
return
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver exporter", d)
log.Infof("sleeping %v to retry initializing stackdriver exporter", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
log.Warn("could not initialize stackdriver exporter after retrying, giving up")
}
func initProfiling(service, version string) {
@ -123,16 +140,16 @@ func initProfiling(service, version string) {
// ProjectID must be set if not running on GCP.
// ProjectID: "my-project",
}); err != nil {
log.Printf("warn: failed to start profiler: %+v", err)
log.Warnf("failed to start profiler: %+v", err)
} else {
log.Print("started stackdriver profiler")
log.Info("started stackdriver profiler")
return
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver profiler", d)
log.Infof("sleeping %v to retry initializing stackdriver profiler", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver profiler after retrying, giving up")
log.Warn("could not initialize stackdriver profiler after retrying, giving up")
}
func mustMapEnv(target *string, envKey string) {
@ -148,7 +165,7 @@ func (cs *checkoutService) Check(ctx context.Context, req *healthpb.HealthCheckR
}
func (cs *checkoutService) PlaceOrder(ctx context.Context, req *pb.PlaceOrderRequest) (*pb.PlaceOrderResponse, error) {
log.Printf("[PlaceOrder] user_id=%q user_currency=%q", req.UserId, req.UserCurrency)
log.Infof("[PlaceOrder] user_id=%q user_currency=%q", req.UserId, req.UserCurrency)
orderID, err := uuid.NewUUID()
if err != nil {
@ -172,7 +189,7 @@ func (cs *checkoutService) PlaceOrder(ctx context.Context, req *pb.PlaceOrderReq
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to charge card: %+v", err)
}
log.Printf("payment went through (transaction_id: %s)", txID)
log.Infof("payment went through (transaction_id: %s)", txID)
shippingTrackingID, err := cs.shipOrder(ctx, req.Address, prep.cartItems)
if err != nil {
@ -190,9 +207,9 @@ func (cs *checkoutService) PlaceOrder(ctx context.Context, req *pb.PlaceOrderReq
}
if err := cs.sendOrderConfirmation(ctx, req.Email, orderResult); err != nil {
log.Printf("failed to send order confirmation to %q: %+v", req.Email, err)
log.Warnf("failed to send order confirmation to %q: %+v", req.Email, err)
} else {
log.Printf("order confirmation email sent to %q", req.Email)
log.Infof("order confirmation email sent to %q", req.Email)
}
resp := &pb.PlaceOrderResponse{Order: orderResult}
return resp, nil

10
src/frontend/main.go
View file

@ -83,7 +83,15 @@ func main() {
ctx := context.Background()
log := logrus.New()
log.Level = logrus.DebugLevel
log.Formatter = &logrus.TextFormatter{}
log.Formatter = &logrus.JSONFormatter{
FieldMap: logrus.FieldMap{
logrus.FieldKeyTime: "timestamp",
logrus.FieldKeyLevel: "severity",
logrus.FieldKeyMsg: "message",
},
TimestampFormat: time.RFC3339Nano,
}
log.Out = os.Stdout
go initProfiling(log, "frontend", "1.0.0")
go initTracing(log)

29
src/loadgenerator/locustfile.py
View file

@ -16,17 +16,7 @@
import random
from locust import HttpLocust, TaskSet
products = [
'0PUK6V6EV0',
'1YMWWN1N4O',
'2ZYFJ3GM2N',
'66VCHSJNUP',
'6E92ZMYYFZ',
'9SIQT8TOJO',
'L9ECAV7KIM',
'LS4PSXUNUM',
'OLJCESPC7Z']
import setting
def index(l):
l.client.get("/")
@ -37,13 +27,13 @@ def setCurrency(l):
{'currency_code': random.choice(currencies)})
def browseProduct(l):
l.client.get("/product/" + random.choice(products))
l.client.get("/product/" + random.choice(setting.products))
def viewCart(l):
l.client.get("/cart")
def addToCart(l):
product = random.choice(products)
product = random.choice(setting.products)
l.client.get("/product/" + product)
l.client.post("/cart", {
'product_id': product,
@ -51,18 +41,7 @@ def addToCart(l):
def checkout(l):
addToCart(l)
l.client.post("/cart/checkout", {
'email': 'someone@example.com',
'street_address': '1600 Amphitheatre Parkway',
'zip_code': '94043',
'city': 'Mountain View',
'state': 'CA',
'country': 'United States',
'credit_card_number': '4432-8015-6152-0454',
'credit_card_expiration_month': '1',
'credit_card_expiration_year': '2019',
'credit_card_cvv': '672',
})
l.client.post("/cart/checkout", random.choice(setting.orders))
class UserBehavior(TaskSet):

53
src/loadgenerator/setting.py Normal file
View file

@ -0,0 +1,53 @@
#!/usr/bin/python
#
# Copyright 2018 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.
products = [
'0PUK6V6EV0',
'1YMWWN1N4O',
'2ZYFJ3GM2N',
'66VCHSJNUP',
'6E92ZMYYFZ',
'9SIQT8TOJO',
'L9ECAV7KIM',
'LS4PSXUNUM',
'OLJCESPC7Z']
orders = [
{
'email': 'someone@example.com',
'street_address': '1600 Amphitheatre Parkway',
'zip_code': '94043',
'city': 'Mountain View',
'state': 'CA',
'country': 'United States',
'credit_card_number': '4432-8015-6152-0454',
'credit_card_expiration_month': '1',
'credit_card_expiration_year': '2019',
'credit_card_cvv': '672',
},
{
'email': 'anyone@example.com',
'street_address': '6-10-1 Roppongi, Roppongi Hills 44F',
'zip_code': '1066126',
'city': 'Minato-ku',
'state': 'Tokyo',
'country': 'Japapn',
'credit_card_number': '4429-3499-0001-7938',
'credit_card_expiration_month': '4',
'credit_card_expiration_year': '2021',
'credit_card_cvv': '124',
}
]

16
src/productcatalogservice/Gopkg.lock generated
View file

@ -62,6 +62,14 @@
revision = "317e0006254c44a0ac427cc52a0e083ff0b9622f"
version = "v2.0.0"
[[projects]]
digest = "1:d867dfa6751c8d7a435821ad3b736310c2ed68945d05b50fb9d23aee0540c8cc"
name = "github.com/sirupsen/logrus"
packages = ["."]
pruneopts = "UT"
revision = "3e01752db0189b9157070a0e1668a620f9a85da2"
version = "v1.0.6"
[[projects]]
name = "go.opencensus.io"
packages = [
@ -83,6 +91,14 @@
revision = "b11f239c032624b045c4c2bfd3d1287b4012ce89"
version = "v0.16.0"
[[projects]]
branch = "master"
digest = "1:3f3a05ae0b95893d90b9b3b5afdb79a9b3d96e4e36e099d841ae602e4aca0da8"
name = "golang.org/x/crypto"
packages = ["ssh/terminal"]
pruneopts = "UT"
revision = "0e37d006457bf46f9e6692014ba72ef82c33022c"
[[projects]]
branch = "master"
name = "golang.org/x/net"

4
src/productcatalogservice/Gopkg.toml
View file

@ -41,6 +41,10 @@
name = "github.com/google/go-cmp"
version = "0.2.0"
[[constraint]]
name = "github.com/sirupsen/logrus"
version = "1.0.6"
[[constraint]]
name = "go.opencensus.io"
version = "0.16.0"

40
src/productcatalogservice/server.go
View file

@ -20,8 +20,8 @@ import (
"flag"
"fmt"
"io/ioutil"
"log"
"net"
"os"
"strings"
"time"
@ -31,6 +31,7 @@ import (
"cloud.google.com/go/profiler"
"contrib.go.opencensus.io/exporter/stackdriver"
"github.com/golang/protobuf/jsonpb"
"github.com/sirupsen/logrus"
"go.opencensus.io/plugin/ocgrpc"
"go.opencensus.io/stats/view"
"go.opencensus.io/trace"
@ -41,6 +42,7 @@ import (
var (
catalogJSON []byte
log *logrus.Logger
port = flag.Int("port", 3550, "port to listen at")
)
@ -51,7 +53,17 @@ func init() {
log.Fatalf("failed to open product catalog json file: %v", err)
}
catalogJSON = c
log.Printf("successfully parsed product catalog json")
log = logrus.New()
log.Formatter = &logrus.JSONFormatter{
FieldMap: logrus.FieldMap{
logrus.FieldKeyTime: "timestamp",
logrus.FieldKeyLevel: "severity",
logrus.FieldKeyMsg: "message",
},
TimestampFormat: time.RFC3339Nano,
}
log.Out = os.Stdout
log.Info("successfully parsed product catalog json")
}
func main() {
@ -59,7 +71,7 @@ func main() {
go initProfiling("productcatalogservice", "1.0.0")
flag.Parse()
log.Printf("starting grpc server at :%d", *port)
log.Infof("starting grpc server at :%d", *port)
run(*port)
select {}
}
@ -80,9 +92,9 @@ func run(port int) string {
func initStats(exporter *stackdriver.Exporter) {
view.RegisterExporter(exporter)
if err := view.Register(ocgrpc.DefaultServerViews...); err != nil {
log.Printf("Error registering default server views")
log.Info("Error registering default server views")
} else {
log.Printf("Registered default server views")
log.Info("Registered default server views")
}
}
@ -92,21 +104,21 @@ func initTracing() {
for i := 1; i <= 3; i++ {
exporter, err := stackdriver.NewExporter(stackdriver.Options{})
if err != nil {
log.Printf("info: failed to initialize stackdriver exporter: %+v", err)
log.Warnf("failed to initialize stackdriver exporter: %+v", err)
} else {
trace.RegisterExporter(exporter)
trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
log.Print("registered stackdriver tracing")
log.Info("registered stackdriver tracing")
// Register the views to collect server stats.
initStats(exporter)
return
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver exporter", d)
log.Infof("sleeping %v to retry initializing stackdriver exporter", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
log.Warn("could not initialize stackdriver exporter after retrying, giving up")
}
func initProfiling(service, version string) {
@ -119,16 +131,16 @@ func initProfiling(service, version string) {
// ProjectID must be set if not running on GCP.
// ProjectID: "my-project",
}); err != nil {
log.Printf("warn: failed to start profiler: %+v", err)
log.Warnf("failed to start profiler: %+v", err)
} else {
log.Print("started stackdriver profiler")
log.Info("started stackdriver profiler")
return
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver profiler", d)
log.Infof("sleeping %v to retry initializing stackdriver profiler", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver profiler after retrying, giving up")
log.Warn("could not initialize stackdriver profiler after retrying, giving up")
}
type productCatalog struct{}
@ -137,7 +149,7 @@ func parseCatalog() []*pb.Product {
var cat pb.ListProductsResponse
if err := jsonpb.Unmarshal(bytes.NewReader(catalogJSON), &cat); err != nil {
log.Printf("warning: failed to parse the catalog JSON: %v", err)
log.Warnf("failed to parse the catalog JSON: %v", err)
return nil
}
return cat.Products

16
src/shippingservice/Gopkg.lock generated
View file

@ -50,6 +50,14 @@
revision = "317e0006254c44a0ac427cc52a0e083ff0b9622f"
version = "v2.0.0"
[[projects]]
digest = "1:d867dfa6751c8d7a435821ad3b736310c2ed68945d05b50fb9d23aee0540c8cc"
name = "github.com/sirupsen/logrus"
packages = ["."]
pruneopts = "UT"
revision = "3e01752db0189b9157070a0e1668a620f9a85da2"
version = "v1.0.6"
[[projects]]
name = "go.opencensus.io"
packages = [
@ -71,6 +79,14 @@
revision = "b11f239c032624b045c4c2bfd3d1287b4012ce89"
version = "v0.16.0"
[[projects]]
branch = "master"
digest = "1:3f3a05ae0b95893d90b9b3b5afdb79a9b3d96e4e36e099d841ae602e4aca0da8"
name = "golang.org/x/crypto"
packages = ["ssh/terminal"]
pruneopts = "UT"
revision = "0e37d006457bf46f9e6692014ba72ef82c33022c"
[[projects]]
branch = "master"
name = "golang.org/x/net"

4
src/shippingservice/Gopkg.toml
View file

@ -37,6 +37,10 @@
name = "github.com/golang/protobuf"
version = "1.2.0"
[[constraint]]
name = "github.com/sirupsen/logrus"
version = "1.0.6"
[[constraint]]
name = "go.opencensus.io"
version = "0.16.0"

48
src/shippingservice/main.go
View file

@ -16,13 +16,13 @@ package main
import (
"fmt"
"log"
"net"
"os"
"time"
"cloud.google.com/go/profiler"
"contrib.go.opencensus.io/exporter/stackdriver"
"github.com/sirupsen/logrus"
"go.opencensus.io/plugin/ocgrpc"
"go.opencensus.io/stats/view"
"go.opencensus.io/trace"
@ -38,6 +38,22 @@ const (
defaultPort = "50051"
)
var log *logrus.Logger
func init() {
log = logrus.New()
log.Level = logrus.DebugLevel
log.Formatter = &logrus.JSONFormatter{
FieldMap: logrus.FieldMap{
logrus.FieldKeyTime: "timestamp",
logrus.FieldKeyLevel: "severity",
logrus.FieldKeyMsg: "message",
},
TimestampFormat: time.RFC3339Nano,
}
log.Out = os.Stdout
}
func main() {
go initTracing()
go initProfiling("shippingservice", "1.0.0")
@ -56,7 +72,7 @@ func main() {
svc := &server{}
pb.RegisterShippingServiceServer(srv, svc)
healthpb.RegisterHealthServer(srv, svc)
log.Printf("Shipping Service listening on port %s", port)
log.Infof("Shipping Service listening on port %s", port)
// Register reflection service on gRPC server.
reflection.Register(srv)
@ -75,8 +91,8 @@ func (s *server) Check(ctx context.Context, req *healthpb.HealthCheckRequest) (*
// GetQuote produces a shipping quote (cost) in USD.
func (s *server) GetQuote(ctx context.Context, in *pb.GetQuoteRequest) (*pb.GetQuoteResponse, error) {
log.Printf("[GetQuote] received request")
defer log.Printf("[GetQuote] completed request")
log.Info("[GetQuote] received request")
defer log.Info("[GetQuote] completed request")
// 1. Our quote system requires the total number of items to be shipped.
count := 0
@ -100,8 +116,8 @@ func (s *server) GetQuote(ctx context.Context, in *pb.GetQuoteRequest) (*pb.GetQ
// ShipOrder mocks that the requested items will be shipped.
// It supplies a tracking ID for notional lookup of shipment delivery status.
func (s *server) ShipOrder(ctx context.Context, in *pb.ShipOrderRequest) (*pb.ShipOrderResponse, error) {
log.Printf("[ShipOrder] received request")
defer log.Printf("[ShipOrder] completed request")
log.Info("[ShipOrder] received request")
defer log.Info("[ShipOrder] completed request")
// 1. Create a Tracking ID
baseAddress := fmt.Sprintf("%s, %s, %s", in.Address.StreetAddress, in.Address.City, in.Address.State)
id := CreateTrackingId(baseAddress)
@ -115,9 +131,9 @@ func (s *server) ShipOrder(ctx context.Context, in *pb.ShipOrderRequest) (*pb.Sh
func initStats(exporter *stackdriver.Exporter) {
view.RegisterExporter(exporter)
if err := view.Register(ocgrpc.DefaultServerViews...); err != nil {
log.Printf("Error registering default server views")
log.Warn("Error registering default server views")
} else {
log.Printf("Registered default server views")
log.Info("Registered default server views")
}
}
@ -127,21 +143,21 @@ func initTracing() {
for i := 1; i <= 3; i++ {
exporter, err := stackdriver.NewExporter(stackdriver.Options{})
if err != nil {
log.Printf("info: failed to initialize stackdriver exporter: %+v", err)
log.Warnf("failed to initialize stackdriver exporter: %+v", err)
} else {
trace.RegisterExporter(exporter)
trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
log.Print("registered stackdriver tracing")
log.Info("registered stackdriver tracing")
// Register the views to collect server stats.
initStats(exporter)
return
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver exporter", d)
log.Infof("sleeping %v to retry initializing stackdriver exporter", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver exporter after retrying, giving up")
log.Warn("could not initialize stackdriver exporter after retrying, giving up")
}
func initProfiling(service, version string) {
@ -154,14 +170,14 @@ func initProfiling(service, version string) {
// ProjectID must be set if not running on GCP.
// ProjectID: "my-project",
}); err != nil {
log.Printf("warn: failed to start profiler: %+v", err)
log.Warnf("failed to start profiler: %+v", err)
} else {
log.Print("started stackdriver profiler")
log.Info("started stackdriver profiler")
return
}
d := time.Second * 10 * time.Duration(i)
log.Printf("sleeping %v to retry initializing stackdriver profiler", d)
log.Infof("sleeping %v to retry initializing stackdriver profiler", d)
time.Sleep(d)
}
log.Printf("warning: could not initialize stackdriver profiler after retrying, giving up")
log.Warn("could not initialize stackdriver profiler after retrying, giving up")
}

2
src/shippingservice/quote.go
View file

@ -50,6 +50,6 @@ func quoteByCountFloat(count int) float64 {
return 0
}
count64 := float64(count)
var p float64 = 1 + (count64 * 0.2)
var p = 1 + (count64 * 0.2)
return count64 + math.Pow(3, p)
}