TUN-3470: Replace in-house logger calls with zerolog

connection/connection_test.go

@@ -8,8 +8,8 @@ import (
 	"testing"
 	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/gobwas/ws/wsutil"
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -22,14 +22,14 @@ var (
 		OriginClient: &mockOriginClient{},
 		GracePeriod:  time.Millisecond * 100,
 	}
-	testLogger, _ = logger.New()
+	log           = zerolog.Nop()
 	testOriginURL = &url.URL{
 		Scheme: "https",
 		Host:   "connectiontest.argotunnel.com",
 	}
 	testTunnelEventChan = make(chan Event)
 	testObserver        = &Observer{
-		testLogger,
+		&log,
 		m,
 		[]chan Event{testTunnelEventChan},
 		false,
@@ -81,7 +81,7 @@ func wsEndpoint(w ResponseWriter, r *http.Request) error {
 	resp := &http.Response{
 		StatusCode: http.StatusSwitchingProtocols,
 	}
-	w.WriteRespHeaders(resp)
+	_ = w.WriteRespHeaders(resp)
 	clientReader := nowriter{r.Body}
 	go func() {
 		for {
@@ -102,8 +102,8 @@ func originRespEndpoint(w ResponseWriter, status int, data []byte) {
 	resp := &http.Response{
 		StatusCode: status,
 	}
-	w.WriteRespHeaders(resp)
-	w.Write(data)
+	_ = w.WriteRespHeaders(resp)
+	_, _ = w.Write(data)
 }
 
 type mockConnectedFuse struct{}

connection/errors.go

@@ -65,11 +65,11 @@ func (e muxerShutdownError) Error() string {
 func isHandshakeErrRecoverable(err error, connIndex uint8, observer *Observer) bool {
 	switch err.(type) {
 	case edgediscovery.DialError:
-		observer.Errorf("Connection %d unable to dial edge: %s", connIndex, err)
+		observer.log.Error().Msgf("Connection %d unable to dial edge: %s", connIndex, err)
 	case h2mux.MuxerHandshakeError:
-		observer.Errorf("Connection %d handshake with edge server failed: %s", connIndex, err)
+		observer.log.Error().Msgf("Connection %d handshake with edge server failed: %s", connIndex, err)
 	default:
-		observer.Errorf("Connection %d failed: %s", connIndex, err)
+		observer.log.Error().Msgf("Connection %d failed: %s", connIndex, err)
 		return false
 	}
 	return true

connection/h2mux.go

@@ -7,10 +7,11 @@ import (
 	"time"
 
 	"github.com/cloudflare/cloudflared/h2mux"
-	"github.com/cloudflare/cloudflared/logger"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
 	"github.com/cloudflare/cloudflared/websocket"
+
 	"github.com/pkg/errors"
+	"github.com/rs/zerolog"
 	"golang.org/x/sync/errgroup"
 )
 
@@ -37,14 +38,14 @@ type MuxerConfig struct {
 	MetricsUpdateFreq  time.Duration
 }
 
-func (mc *MuxerConfig) H2MuxerConfig(h h2mux.MuxedStreamHandler, logger logger.Service) *h2mux.MuxerConfig {
+func (mc *MuxerConfig) H2MuxerConfig(h h2mux.MuxedStreamHandler, log *zerolog.Logger) *h2mux.MuxerConfig {
 	return &h2mux.MuxerConfig{
 		Timeout:            muxerTimeout,
 		Handler:            h,
 		IsClient:           true,
 		HeartbeatInterval:  mc.HeartbeatInterval,
 		MaxHeartbeats:      mc.MaxHeartbeats,
-		Logger:             logger,
+		Log:                log,
 		CompressionQuality: mc.CompressionSetting,
 	}
 }
@@ -67,7 +68,7 @@ func NewH2muxConnection(ctx context.Context,
 
 	// Establish a muxed connection with the edge
 	// Client mux handshake with agent server
-	muxer, err := h2mux.Handshake(edgeConn, edgeConn, *muxerConfig.H2MuxerConfig(h, observer), h2mux.ActiveStreams)
+	muxer, err := h2mux.Handshake(edgeConn, edgeConn, *muxerConfig.H2MuxerConfig(h, observer.log), h2mux.ActiveStreams)
 	if err != nil {
 		recoverable := isHandshakeErrRecoverable(err, connIndex, observer)
 		return nil, err, recoverable
@@ -87,7 +88,7 @@ func (h *h2muxConnection) ServeNamedTunnel(ctx context.Context, namedTunnel *Nam
 		if err != nil {
 			return err
 		}
-		rpcClient := newRegistrationRPCClient(ctx, stream, h.observer)
+		rpcClient := newRegistrationRPCClient(ctx, stream, h.observer.log)
 		defer rpcClient.Close()
 
 		if err = rpcClient.RegisterConnection(serveCtx, namedTunnel, connOptions, h.connIndex, h.observer); err != nil {
@@ -122,7 +123,7 @@ func (h *h2muxConnection) ServeClassicTunnel(ctx context.Context, classicTunnel
 				return nil
 			}
 			// log errors and proceed to RegisterTunnel
-			h.observer.Errorf("Couldn't reconnect connection %d. Reregistering it instead. Error was: %v", h.connIndex, err)
+			h.observer.log.Error().Msgf("Couldn't reconnect connection %d. Reregistering it instead. Error was: %v", h.connIndex, err)
 		}
 		return h.registerTunnel(ctx, credentialManager, classicTunnel, registrationOptions)
 	})
@@ -212,9 +213,9 @@ func (rp *h2muxRespWriter) WriteRespHeaders(resp *http.Response) error {
 }
 
 func (rp *h2muxRespWriter) WriteErrorResponse() {
-	rp.WriteHeaders([]h2mux.Header{
+	_ = rp.WriteHeaders([]h2mux.Header{
 		{Name: ":status", Value: "502"},
 		{Name: ResponseMetaHeaderField, Value: responseMetaHeaderCfd},
 	})
-	rp.Write([]byte("502 Bad Gateway"))
+	_, _ = rp.Write([]byte("502 Bad Gateway"))
 }

connection/h2mux_test.go

@@ -31,7 +31,7 @@ func newH2MuxConnection(ctx context.Context, t require.TestingT) (*h2muxConnecti
 	edgeMuxChan := make(chan *h2mux.Muxer)
 	go func() {
 		edgeMuxConfig := h2mux.MuxerConfig{
-			Logger: testObserver,
+			Log: testObserver.log,
 		}
 		edgeMux, err := h2mux.Handshake(edgeConn, edgeConn, edgeMuxConfig, h2mux.ActiveStreams)
 		require.NoError(t, err)
@@ -85,7 +85,7 @@ func TestServeStreamHTTP(t *testing.T) {
 	wg.Add(2)
 	go func() {
 		defer wg.Done()
-		edgeMux.Serve(ctx)
+		_ = edgeMux.Serve(ctx)
 	}()
 	go func() {
 		defer wg.Done()

connection/http2.go

@@ -11,9 +11,9 @@ import (
 	"sync"
 
 	"github.com/cloudflare/cloudflared/h2mux"
-	"github.com/cloudflare/cloudflared/logger"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
 
+	"github.com/rs/zerolog"
 	"golang.org/x/net/http2"
 )
 
@@ -38,7 +38,7 @@ type http2Connection struct {
 	connIndex    uint8
 	wg           *sync.WaitGroup
 	// newRPCClientFunc allows us to mock RPCs during testing
-	newRPCClientFunc func(context.Context, io.ReadWriteCloser, logger.Service) NamedTunnelRPCClient
+	newRPCClientFunc func(context.Context, io.ReadWriteCloser, *zerolog.Logger) NamedTunnelRPCClient
 	connectedFuse    ConnectedFuse
 }
 
@@ -89,7 +89,7 @@ func (c *http2Connection) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 	flusher, isFlusher := w.(http.Flusher)
 	if !isFlusher {
-		c.observer.Errorf("%T doesn't implement http.Flusher", w)
+		c.observer.log.Error().Msgf("%T doesn't implement http.Flusher", w)
 		respWriter.WriteErrorResponse()
 		return
 	}
@@ -112,7 +112,7 @@ func (c *http2Connection) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 }
 
 func (c *http2Connection) serveControlStream(ctx context.Context, respWriter *http2RespWriter) error {
-	rpcClient := c.newRPCClientFunc(ctx, respWriter, c.observer)
+	rpcClient := c.newRPCClientFunc(ctx, respWriter, c.observer.log)
 	defer rpcClient.Close()
 
 	if err := rpcClient.RegisterConnection(ctx, c.namedTunnel, c.connOptions, c.connIndex, c.observer); err != nil {

connection/http2_test.go

@@ -12,10 +12,11 @@ import (
 	"testing"
 	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
 	"github.com/gobwas/ws/wsutil"
+	"github.com/rs/zerolog"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/net/http2"
 )
@@ -136,7 +137,7 @@ type mockRPCClientFactory struct {
 	unregistered chan struct{}
 }
 
-func (mf *mockRPCClientFactory) newMockRPCClient(context.Context, io.ReadWriteCloser, logger.Service) NamedTunnelRPCClient {
+func (mf *mockRPCClientFactory) newMockRPCClient(context.Context, io.ReadWriteCloser, *zerolog.Logger) NamedTunnelRPCClient {
 	return mockNamedTunnelRPCClient{
 		registered:   mf.registered,
 		unregistered: mf.unregistered,

connection/observer.go

@@ -5,20 +5,21 @@ import (
 	"net/url"
 	"strings"
 
-	"github.com/cloudflare/cloudflared/logger"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
+	"github.com/rs/zerolog"
 )
 
 type Observer struct {
-	logger.Service
+	log              *zerolog.Logger
 	metrics          *tunnelMetrics
 	tunnelEventChans []chan Event
 	uiEnabled        bool
 }
 
-func NewObserver(logger logger.Service, tunnelEventChans []chan Event, uiEnabled bool) *Observer {
+func NewObserver(log *zerolog.Logger, tunnelEventChans []chan Event, uiEnabled bool) *Observer {
 	return &Observer{
-		logger,
+		log,
 		newTunnelMetrics(),
 		tunnelEventChans,
 		uiEnabled,
@@ -27,7 +28,7 @@ func NewObserver(logger logger.Service, tunnelEventChans []chan Event, uiEnabled
 
 func (o *Observer) logServerInfo(connIndex uint8, location, msg string) {
 	o.sendEvent(Event{Index: connIndex, EventType: Connected, Location: location})
-	o.Infof(msg)
+	o.log.Info().Msgf(msg)
 	o.metrics.registerServerLocation(uint8ToString(connIndex), location)
 }
 
@@ -36,10 +37,10 @@ func (o *Observer) logTrialHostname(registration *tunnelpogs.TunnelRegistration)
 	if !o.uiEnabled {
 		if registrationURL, err := url.Parse(registration.Url); err == nil {
 			for _, line := range asciiBox(trialZoneMsg(registrationURL.String()), 2) {
-				o.Info(line)
+				o.log.Info().Msg(line)
 			}
 		} else {
-			o.Error("Failed to connect tunnel, please try again.")
+			o.log.Error().Msg("Failed to connect tunnel, please try again.")
 			return fmt.Errorf("empty URL in response from Cloudflare edge")
 		}
 	}

connection/protocol.go

@@ -6,7 +6,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
+	"github.com/rs/zerolog"
 )
 
 const (
@@ -89,7 +89,7 @@ type autoProtocolSelector struct {
 	fetchFunc      PercentageFetcher
 	refreshAfter   time.Time
 	ttl            time.Duration
-	logger         logger.Service
+	log            *zerolog.Logger
 }
 
 func newAutoProtocolSelector(
@@ -97,7 +97,7 @@ func newAutoProtocolSelector(
 	switchThrehold int32,
 	fetchFunc PercentageFetcher,
 	ttl time.Duration,
-	logger logger.Service,
+	log *zerolog.Logger,
 ) *autoProtocolSelector {
 	return &autoProtocolSelector{
 		current:        current,
@@ -105,7 +105,7 @@ func newAutoProtocolSelector(
 		fetchFunc:      fetchFunc,
 		refreshAfter:   time.Now().Add(ttl),
 		ttl:            ttl,
-		logger:         logger,
+		log:            log,
 	}
 }
 
@@ -118,7 +118,7 @@ func (s *autoProtocolSelector) Current() Protocol {
 
 	percentage, err := s.fetchFunc()
 	if err != nil {
-		s.logger.Errorf("Failed to refresh protocol, err: %v", err)
+		s.log.Error().Msgf("Failed to refresh protocol, err: %v", err)
 		return s.current
 	}
 
@@ -139,7 +139,13 @@ func (s *autoProtocolSelector) Fallback() (Protocol, bool) {
 
 type PercentageFetcher func() (int32, error)
 
-func NewProtocolSelector(protocolFlag string, namedTunnel *NamedTunnelConfig, fetchFunc PercentageFetcher, ttl time.Duration, logger logger.Service) (ProtocolSelector, error) {
+func NewProtocolSelector(
+	protocolFlag string,
+	namedTunnel *NamedTunnelConfig,
+	fetchFunc PercentageFetcher,
+	ttl time.Duration,
+	log *zerolog.Logger,
+) (ProtocolSelector, error) {
 	if namedTunnel == nil {
 		return &staticProtocolSelector{
 			current: H2mux,
@@ -157,9 +163,9 @@ func NewProtocolSelector(protocolFlag string, namedTunnel *NamedTunnelConfig, fe
 	}
 	if protocolFlag == HTTP2.String() {
 		if http2Percentage < 0 {
-			return newAutoProtocolSelector(H2mux, explicitHTTP2FallbackThreshold, fetchFunc, ttl, logger), nil
+			return newAutoProtocolSelector(H2mux, explicitHTTP2FallbackThreshold, fetchFunc, ttl, log), nil
 		}
-		return newAutoProtocolSelector(HTTP2, explicitHTTP2FallbackThreshold, fetchFunc, ttl, logger), nil
+		return newAutoProtocolSelector(HTTP2, explicitHTTP2FallbackThreshold, fetchFunc, ttl, log), nil
 	}
 
 	if protocolFlag != autoSelectFlag {
@@ -167,13 +173,13 @@ func NewProtocolSelector(protocolFlag string, namedTunnel *NamedTunnelConfig, fe
 	}
 	threshold := switchThreshold(namedTunnel.Credentials.AccountTag)
 	if threshold < http2Percentage {
-		return newAutoProtocolSelector(HTTP2, threshold, fetchFunc, ttl, logger), nil
+		return newAutoProtocolSelector(HTTP2, threshold, fetchFunc, ttl, log), nil
 	}
-	return newAutoProtocolSelector(H2mux, threshold, fetchFunc, ttl, logger), nil
+	return newAutoProtocolSelector(H2mux, threshold, fetchFunc, ttl, log), nil
 }
 
 func switchThreshold(accountTag string) int32 {
 	h := fnv.New32a()
-	h.Write([]byte(accountTag))
+	_, _ = h.Write([]byte(accountTag))
 	return int32(h.Sum32() % 100)
 }

connection/protocol_test.go

@@ -5,7 +5,6 @@ import (
 	"testing"
 	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -130,9 +129,9 @@ func TestNewProtocolSelector(t *testing.T) {
 			wantErr:           true,
 		},
 	}
-	logger, _ := logger.New()
+
 	for _, test := range tests {
-		selector, err := NewProtocolSelector(test.protocol, test.namedTunnelConfig, test.fetchFunc, testNoTTL, logger)
+		selector, err := NewProtocolSelector(test.protocol, test.namedTunnelConfig, test.fetchFunc, testNoTTL, &log)
 		if test.wantErr {
 			assert.Error(t, err, fmt.Sprintf("test %s failed", test.name))
 		} else {
@@ -148,9 +147,8 @@ func TestNewProtocolSelector(t *testing.T) {
 }
 
 func TestAutoProtocolSelectorRefresh(t *testing.T) {
-	logger, _ := logger.New()
 	fetcher := dynamicMockFetcher{}
-	selector, err := NewProtocolSelector("auto", testNamedTunnelConfig, fetcher.fetch(), testNoTTL, logger)
+	selector, err := NewProtocolSelector("auto", testNamedTunnelConfig, fetcher.fetch(), testNoTTL, &log)
 	assert.NoError(t, err)
 	assert.Equal(t, H2mux, selector.Current())
 
@@ -178,9 +176,8 @@ func TestAutoProtocolSelectorRefresh(t *testing.T) {
 }
 
 func TestHTTP2ProtocolSelectorRefresh(t *testing.T) {
-	logger, _ := logger.New()
 	fetcher := dynamicMockFetcher{}
-	selector, err := NewProtocolSelector("http2", testNamedTunnelConfig, fetcher.fetch(), testNoTTL, logger)
+	selector, err := NewProtocolSelector("http2", testNamedTunnelConfig, fetcher.fetch(), testNoTTL, &log)
 	assert.NoError(t, err)
 	assert.Equal(t, HTTP2, selector.Current())
 
@@ -208,9 +205,8 @@ func TestHTTP2ProtocolSelectorRefresh(t *testing.T) {
 }
 
 func TestProtocolSelectorRefreshTTL(t *testing.T) {
-	logger, _ := logger.New()
 	fetcher := dynamicMockFetcher{percentage: 100}
-	selector, err := NewProtocolSelector("auto", testNamedTunnelConfig, fetcher.fetch(), time.Hour, logger)
+	selector, err := NewProtocolSelector("auto", testNamedTunnelConfig, fetcher.fetch(), time.Hour, &log)
 	assert.NoError(t, err)
 	assert.Equal(t, HTTP2, selector.Current())
 

connection/rpc.go

@@ -6,9 +6,10 @@ import (
 	"io"
 	"time"
 
-	"github.com/cloudflare/cloudflared/logger"
 	"github.com/cloudflare/cloudflared/tunnelrpc"
 	tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
+
+	"github.com/rs/zerolog"
 	"zombiezen.com/go/capnproto2/rpc"
 )
 
@@ -22,12 +23,12 @@ type tunnelServerClient struct {
 func NewTunnelServerClient(
 	ctx context.Context,
 	stream io.ReadWriteCloser,
-	logger logger.Service,
+	log *zerolog.Logger,
 ) *tunnelServerClient {
-	transport := tunnelrpc.NewTransportLogger(logger, rpc.StreamTransport(stream))
+	transport := tunnelrpc.NewTransportLogger(log, rpc.StreamTransport(stream))
 	conn := rpc.NewConn(
 		transport,
-		tunnelrpc.ConnLog(logger),
+		tunnelrpc.ConnLog(log),
 	)
 	registrationClient := tunnelpogs.RegistrationServer_PogsClient{Client: conn.Bootstrap(ctx), Conn: conn}
 	return &tunnelServerClient{
@@ -46,8 +47,8 @@ func (tsc *tunnelServerClient) Authenticate(ctx context.Context, classicTunnel *
 
 func (tsc *tunnelServerClient) Close() {
 	// Closing the client will also close the connection
-	tsc.client.Close()
-	tsc.transport.Close()
+	_ = tsc.client.Close()
+	_ = tsc.transport.Close()
 }
 
 type NamedTunnelRPCClient interface {
@@ -70,12 +71,12 @@ type registrationServerClient struct {
 func newRegistrationRPCClient(
 	ctx context.Context,
 	stream io.ReadWriteCloser,
-	logger logger.Service,
+	log *zerolog.Logger,
 ) NamedTunnelRPCClient {
-	transport := tunnelrpc.NewTransportLogger(logger, rpc.StreamTransport(stream))
+	transport := tunnelrpc.NewTransportLogger(log, rpc.StreamTransport(stream))
 	conn := rpc.NewConn(
 		transport,
-		tunnelrpc.ConnLog(logger),
+		tunnelrpc.ConnLog(log),
 	)
 	return &registrationServerClient{
 		client:    tunnelpogs.RegistrationServer_PogsClient{Client: conn.Bootstrap(ctx), Conn: conn},
@@ -117,14 +118,14 @@ func (rsc *registrationServerClient) RegisterConnection(
 func (rsc *registrationServerClient) GracefulShutdown(ctx context.Context, gracePeriod time.Duration) {
 	ctx, cancel := context.WithTimeout(ctx, gracePeriod)
 	defer cancel()
-	rsc.client.UnregisterConnection(ctx)
+	_ = rsc.client.UnregisterConnection(ctx)
 }
 
 func (rsc *registrationServerClient) Close() {
 	// Closing the client will also close the connection
-	rsc.client.Close()
+	_ = rsc.client.Close()
 	// Closing the transport also closes the stream
-	rsc.transport.Close()
+	_ = rsc.transport.Close()
 }
 
 type rpcName string
@@ -143,10 +144,10 @@ func (h *h2muxConnection) registerTunnel(ctx context.Context, credentialSetter C
 	if err != nil {
 		return err
 	}
-	rpcClient := NewTunnelServerClient(ctx, stream, h.observer)
+	rpcClient := NewTunnelServerClient(ctx, stream, h.observer.log)
 	defer rpcClient.Close()
 
-	h.logServerInfo(ctx, rpcClient)
+	_ = h.logServerInfo(ctx, rpcClient)
 	registration := rpcClient.client.RegisterTunnel(
 		ctx,
 		classicTunnel.OriginCert,
@@ -178,12 +179,12 @@ func (h *h2muxConnection) processRegistrationSuccess(
 	credentialManager CredentialManager, classicTunnel *ClassicTunnelConfig,
 ) error {
 	for _, logLine := range registration.LogLines {
-		h.observer.Info(logLine)
+		h.observer.log.Info().Msg(logLine)
 	}
 
 	if registration.TunnelID != "" {
 		h.observer.metrics.tunnelsHA.AddTunnelID(h.connIndex, registration.TunnelID)
-		h.observer.Infof("Each HA connection's tunnel IDs: %v", h.observer.metrics.tunnelsHA.String())
+		h.observer.log.Info().Msgf("Each HA connection's tunnel IDs: %v", h.observer.metrics.tunnelsHA.String())
 	}
 
 	// Print out the user's trial zone URL in a nice box (if they requested and got one and UI flag is not set)
@@ -197,7 +198,7 @@ func (h *h2muxConnection) processRegistrationSuccess(
 	credentialManager.SetConnDigest(h.connIndex, registration.ConnDigest)
 	h.observer.metrics.userHostnamesCounts.WithLabelValues(registration.Url).Inc()
 
-	h.observer.Infof("Route propagating, it may take up to 1 minute for your new route to become functional")
+	h.observer.log.Info().Msgf("Route propagating, it may take up to 1 minute for your new route to become functional")
 	h.observer.metrics.regSuccess.WithLabelValues(string(name)).Inc()
 	return nil
 }
@@ -228,15 +229,15 @@ func (h *h2muxConnection) reconnectTunnel(ctx context.Context, credentialManager
 		return err
 	}
 
-	h.observer.Debug("initiating RPC stream to reconnect")
+	h.observer.log.Debug().Msg("initiating RPC stream to reconnect")
 	stream, err := h.newRPCStream(ctx, register)
 	if err != nil {
 		return err
 	}
-	rpcClient := NewTunnelServerClient(ctx, stream, h.observer)
+	rpcClient := NewTunnelServerClient(ctx, stream, h.observer.log)
 	defer rpcClient.Close()
 
-	h.logServerInfo(ctx, rpcClient)
+	_ = h.logServerInfo(ctx, rpcClient)
 	registration := rpcClient.client.ReconnectTunnel(
 		ctx,
 		token,
@@ -259,15 +260,15 @@ func (h *h2muxConnection) logServerInfo(ctx context.Context, rpcClient *tunnelSe
 	})
 	serverInfoMessage, err := serverInfoPromise.Result().Struct()
 	if err != nil {
-		h.observer.Errorf("Failed to retrieve server information: %s", err)
+		h.observer.log.Error().Msgf("Failed to retrieve server information: %s", err)
 		return err
 	}
 	serverInfo, err := tunnelpogs.UnmarshalServerInfo(serverInfoMessage)
 	if err != nil {
-		h.observer.Errorf("Failed to retrieve server information: %s", err)
+		h.observer.log.Error().Msgf("Failed to retrieve server information: %s", err)
 		return err
 	}
-	h.observer.logServerInfo(h.connIndex, serverInfo.LocationName, fmt.Sprintf("Connnection %d connected to %s", h.connIndex, serverInfo.LocationName))
+	h.observer.logServerInfo(h.connIndex, serverInfo.LocationName, fmt.Sprintf("Connection %d connected to %s", h.connIndex, serverInfo.LocationName))
 	return nil
 }
 
@@ -281,15 +282,15 @@ func (h *h2muxConnection) unregister(isNamedTunnel bool) {
 	}
 
 	if isNamedTunnel {
-		rpcClient := newRegistrationRPCClient(unregisterCtx, stream, h.observer)
+		rpcClient := newRegistrationRPCClient(unregisterCtx, stream, h.observer.log)
 		defer rpcClient.Close()
 
 		rpcClient.GracefulShutdown(unregisterCtx, h.config.GracePeriod)
 	} else {
-		rpcClient := NewTunnelServerClient(unregisterCtx, stream, h.observer)
+		rpcClient := NewTunnelServerClient(unregisterCtx, stream, h.observer.log)
 		defer rpcClient.Close()
 
 		// gracePeriod is encoded in int64 using capnproto
-		rpcClient.client.UnregisterTunnel(unregisterCtx, h.config.GracePeriod.Nanoseconds())
+		_ = rpcClient.client.UnregisterTunnel(unregisterCtx, h.config.GracePeriod.Nanoseconds())
 	}
 }