replace go.opencensus.io with opentelemetry

accounts/pkg/server/http/server.go

@@ -29,6 +29,7 @@ func Server(opts ...Option) http.Service {
 	mux := chi.NewMux()
 
 	mux.Use(middleware.RealIP)
+	mux.Use(middleware.TraceContext)
 	mux.Use(middleware.RequestID)
 	mux.Use(middleware.NoCache)
 	mux.Use(middleware.Cors)

accounts/pkg/service/v0/accounts.go

@@ -12,10 +12,7 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/owncloud/ocis/ocis-pkg/sync"
-	"golang.org/x/crypto/bcrypt"
-
-	"github.com/owncloud/ocis/ocis-pkg/log"
+	"go.opentelemetry.io/otel/attribute"
 
 	merrors "github.com/asim/go-micro/v3/errors"
 	"github.com/asim/go-micro/v3/metadata"
@@ -24,11 +21,15 @@ import (
 	fieldmask_utils "github.com/mennanov/fieldmask-utils"
 	"github.com/owncloud/ocis/accounts/pkg/proto/v0"
 	"github.com/owncloud/ocis/accounts/pkg/storage"
+	accTracing "github.com/owncloud/ocis/accounts/pkg/tracing"
+	"github.com/owncloud/ocis/ocis-pkg/log"
 	"github.com/owncloud/ocis/ocis-pkg/middleware"
 	"github.com/owncloud/ocis/ocis-pkg/roles"
+	"github.com/owncloud/ocis/ocis-pkg/sync"
 	settings "github.com/owncloud/ocis/settings/pkg/proto/v0"
 	settings_svc "github.com/owncloud/ocis/settings/pkg/service/v0"
 	"github.com/rs/zerolog"
+	"golang.org/x/crypto/bcrypt"
 	"google.golang.org/genproto/protobuf/field_mask"
 	p "google.golang.org/protobuf/proto"
 	"google.golang.org/protobuf/types/known/timestamppb"
@@ -124,6 +125,14 @@ func (s Service) getInMemoryServiceUser() proto.Account {
 // ListAccounts implements the AccountsServiceHandler interface
 // the query contains account properties
 func (s Service) ListAccounts(ctx context.Context, in *proto.ListAccountsRequest, out *proto.ListAccountsResponse) (err error) {
+	ctx, span := accTracing.TraceProvider.Tracer("accounts").Start(ctx, "Accounts.ListAccounts")
+	defer span.End()
+
+	span.SetAttributes(
+		attribute.KeyValue{Key: "page_size", Value: attribute.Int64Value(int64(in.PageSize))},
+		attribute.KeyValue{Key: "page_token", Value: attribute.StringValue(in.PageToken)},
+	)
+
 	hasSelf := s.hasSelfManagementPermissions(ctx)
 	hasManagement := s.hasAccountManagementPermissions(ctx)
 	if !hasSelf && !hasManagement {
@@ -269,6 +278,13 @@ func (s Service) findAccountsByQuery(ctx context.Context, query string) ([]strin
 
 // GetAccount implements the AccountsServiceHandler interface
 func (s Service) GetAccount(ctx context.Context, in *proto.GetAccountRequest, out *proto.Account) (err error) {
+	ctx, span := accTracing.TraceProvider.Tracer("accounts").Start(ctx, "Accounts.GetAccount")
+	defer span.End()
+
+	span.SetAttributes(
+		attribute.KeyValue{Key: "account_id", Value: attribute.StringValue(in.Id)},
+	)
+
 	hasSelf := s.hasSelfManagementPermissions(ctx)
 	hasManagement := s.hasAccountManagementPermissions(ctx)
 	if !hasSelf && !hasManagement {
@@ -317,6 +333,13 @@ func (s Service) GetAccount(ctx context.Context, in *proto.GetAccountRequest, ou
 
 // CreateAccount implements the AccountsServiceHandler interface
 func (s Service) CreateAccount(ctx context.Context, in *proto.CreateAccountRequest, out *proto.Account) (err error) {
+	ctx, span := accTracing.TraceProvider.Tracer("accounts").Start(ctx, "Accounts.CreateAccount")
+	defer span.End()
+
+	span.SetAttributes(
+		attribute.KeyValue{Key: "account", Value: attribute.StringValue(in.Account.String())},
+	)
+
 	if !s.hasAccountManagementPermissions(ctx) {
 		return merrors.Forbidden(s.id, "no permission for CreateAccount")
 	}
@@ -449,6 +472,13 @@ func (s Service) rollbackCreateAccount(ctx context.Context, acc *proto.Account)
 // read only fields are ignored
 // TODO how can we unset specific values? using the update mask
 func (s Service) UpdateAccount(ctx context.Context, in *proto.UpdateAccountRequest, out *proto.Account) (err error) {
+	ctx, span := accTracing.TraceProvider.Tracer("accounts").Start(ctx, "Accounts.UpdateAccount")
+	defer span.End()
+
+	span.SetAttributes(
+		attribute.KeyValue{Key: "account", Value: attribute.StringValue(in.Account.String())},
+	)
+
 	hasSelf := s.hasSelfManagementPermissions(ctx)
 	hasManagement := s.hasAccountManagementPermissions(ctx)
 	if !hasSelf && !hasManagement {
@@ -615,6 +645,9 @@ var updatableAccountPaths = map[string]struct{}{
 
 // DeleteAccount implements the AccountsServiceHandler interface
 func (s Service) DeleteAccount(ctx context.Context, in *proto.DeleteAccountRequest, out *empty.Empty) (err error) {
+	ctx, span := accTracing.TraceProvider.Tracer("accounts").Start(ctx, "Accounts.DeleteAccount")
+	defer span.End()
+
 	if !s.hasAccountManagementPermissions(ctx) {
 		return merrors.Forbidden(s.id, "no permission for DeleteAccount")
 	}

accounts/pkg/tracing/tracing.go

@@ -1,87 +1,58 @@
 package tracing
 
 import (
-	"time"
-
-	"contrib.go.opencensus.io/exporter/jaeger"
-	"contrib.go.opencensus.io/exporter/ocagent"
-	"contrib.go.opencensus.io/exporter/zipkin"
-	openzipkin "github.com/openzipkin/zipkin-go"
-	zipkinhttp "github.com/openzipkin/zipkin-go/reporter/http"
 	"github.com/owncloud/ocis/accounts/pkg/config"
 	"github.com/owncloud/ocis/ocis-pkg/log"
-	"go.opencensus.io/stats/view"
-	"go.opencensus.io/trace"
+	"go.opentelemetry.io/otel/exporters/jaeger"
+	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/sdk/resource"
+	sdktrace "go.opentelemetry.io/otel/sdk/trace"
+	semconv "go.opentelemetry.io/otel/semconv/v1.4.0"
+)
+
+var (
+	// Propagator ensures the entire module uses the same trace propagation strategy.
+	Propagator propagation.TextMapPropagator
+
+	// TraceProvider is the global trace provider for the proxy service.
+	TraceProvider *sdktrace.TracerProvider
 )
 
 func Configure(cfg *config.Config, logger log.Logger) error {
 	if cfg.Tracing.Enabled {
 		switch t := cfg.Tracing.Type; t {
-		case "agent":
-			exporter, err := ocagent.NewExporter(
-				ocagent.WithReconnectionPeriod(5*time.Second),
-				ocagent.WithAddress(cfg.Tracing.Endpoint),
-				ocagent.WithServiceName(cfg.Tracing.Service),
-			)
-			if err != nil {
-				logger.Error().
-					Err(err).
-					Str("endpoint", cfg.Tracing.Endpoint).
-					Str("collector", cfg.Tracing.Collector).
-					Msg("Failed to create agent tracing")
-				return err
-			}
-			trace.RegisterExporter(exporter)
-			view.RegisterExporter(exporter)
 		case "jaeger":
-			exporter, err := jaeger.NewExporter(
-				jaeger.Options{
-					AgentEndpoint:     cfg.Tracing.Endpoint,
-					CollectorEndpoint: cfg.Tracing.Collector,
-					Process: jaeger.Process{
-						ServiceName: cfg.Tracing.Service,
-					},
-				},
-			)
-			if err != nil {
-				logger.Error().
-					Err(err).
-					Str("endpoint", cfg.Tracing.Endpoint).
-					Str("collector", cfg.Tracing.Collector).
-					Msg("Failed to create jaeger tracing")
-				return err
+			{
+				exp, err := jaeger.New(
+					jaeger.WithCollectorEndpoint(
+						jaeger.WithEndpoint(cfg.Tracing.Collector),
+					),
+				)
+				if err != nil {
+					panic(err)
+				}
+
+				// set package level trace provider and propagator.
+				TraceProvider = sdktrace.NewTracerProvider(
+					sdktrace.WithBatcher(exp),
+					sdktrace.WithResource(resource.NewWithAttributes(
+						semconv.SchemaURL,
+						semconv.ServiceNameKey.String("accounts")),
+					),
+				)
+
+				Propagator = propagation.NewCompositeTextMapPropagator(
+					propagation.Baggage{},
+					propagation.TraceContext{},
+				)
 			}
-			trace.RegisterExporter(exporter)
+		case "agent":
+			fallthrough
 		case "zipkin":
-			endpoint, err := openzipkin.NewEndpoint(
-				cfg.Tracing.Service,
-				cfg.Tracing.Endpoint,
-			)
-			if err != nil {
-				logger.Error().
-					Err(err).
-					Str("endpoint", cfg.Tracing.Endpoint).
-					Str("collector", cfg.Tracing.Collector).
-					Msg("Failed to create zipkin tracing")
-				return err
-			}
-			exporter := zipkin.NewExporter(
-				zipkinhttp.NewReporter(
-					cfg.Tracing.Collector,
-				),
-				endpoint,
-			)
-			trace.RegisterExporter(exporter)
+			fallthrough
 		default:
-			logger.Warn().
-				Str("type", t).
-				Msg("Unknown tracing backend")
+			logger.Warn().Str("type", t).Msg("Unknown tracing backend")
 		}
-		trace.ApplyConfig(
-			trace.Config{
-				DefaultSampler: trace.AlwaysSample(),
-			},
-		)
 	} else {
 		logger.Debug().
 			Msg("Tracing is not enabled")

ocs/pkg/middleware/logtrace.go

@@ -12,7 +12,7 @@ var propagator = propagation.NewCompositeTextMapPropagator(
 	propagation.TraceContext{},
 )
 
-// LogTrace unpacks the request context looking for an existing trace id.
+// LogTrace Sets the initial trace in the ocs service.
 func LogTrace(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		ctx, span := ocstracing.TraceProvider.Tracer("ocs").Start(r.Context(), r.URL.Path)