diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/client.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/client.go
new file mode 100644
index 0000000..294983f
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/client.go
@@ -0,0 +1,667 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"reflect"
+	"strings"
+	"sync"
+	"time"
+
+	grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
+	grpc_opentracing "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
+	"github.com/jhump/protoreflect/dynamic/grpcdynamic"
+	"github.com/jhump/protoreflect/grpcreflect"
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
+	"github.com/opencord/voltha-lib-go/v7/pkg/probe"
+	"github.com/opencord/voltha-protos/v5/go/adapter_service"
+	"github.com/opencord/voltha-protos/v5/go/common"
+	"github.com/opencord/voltha-protos/v5/go/core_service"
+	"github.com/opencord/voltha-protos/v5/go/olt_inter_adapter_service"
+	"github.com/opencord/voltha-protos/v5/go/onu_inter_adapter_service"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	rpb "google.golang.org/grpc/reflection/grpc_reflection_v1alpha"
+	"google.golang.org/grpc/status"
+)
+
+type event byte
+type state byte
+type GetServiceClient func(context.Context, *grpc.ClientConn) interface{}
+type RestartedHandler func(ctx context.Context, endPoint string) error
+
+const (
+	grpcBackoffInitialInterval = "GRPC_BACKOFF_INITIAL_INTERVAL"
+	grpcBackoffMaxInterval     = "GRPC_BACKOFF_MAX_INTERVAL"
+	grpcBackoffMaxElapsedTime  = "GRPC_BACKOFF_MAX_ELAPSED_TIME"
+	grpcMonitorInterval        = "GRPC_MONITOR_INTERVAL"
+)
+
+const (
+	DefaultBackoffInitialInterval = 100 * time.Millisecond
+	DefaultBackoffMaxInterval     = 5 * time.Second
+	DefaultBackoffMaxElapsedTime  = 0 * time.Second // No time limit
+	DefaultGRPCMonitorInterval    = 5 * time.Second
+)
+
+const (
+	eventConnecting = event(iota)
+	eventValidatingConnection
+	eventConnected
+	eventDisconnected
+	eventStopped
+	eventError
+
+	stateConnected = state(iota)
+	stateValidatingConnection
+	stateConnecting
+	stateDisconnected
+)
+
+type Client struct {
+	clientEndpoint         string
+	clientContextData      string
+	serverEndPoint         string
+	remoteServiceName      string
+	connection             *grpc.ClientConn
+	connectionLock         sync.RWMutex
+	stateLock              sync.RWMutex
+	state                  state
+	service                interface{}
+	events                 chan event
+	onRestart              RestartedHandler
+	backoffInitialInterval time.Duration
+	backoffMaxInterval     time.Duration
+	backoffMaxElapsedTime  time.Duration
+	monitorInterval        time.Duration
+	done                   bool
+	livenessLock           sync.RWMutex
+	livenessCallback       func(timestamp time.Time)
+}
+
+type ClientOption func(*Client)
+
+func ClientContextData(data string) ClientOption {
+	return func(args *Client) {
+		args.clientContextData = data
+	}
+}
+
+func NewClient(clientEndpoint, serverEndpoint, remoteServiceName string, onRestart RestartedHandler,
+	opts ...ClientOption) (*Client, error) {
+	c := &Client{
+		clientEndpoint:         clientEndpoint,
+		serverEndPoint:         serverEndpoint,
+		remoteServiceName:      remoteServiceName,
+		onRestart:              onRestart,
+		events:                 make(chan event, 5),
+		state:                  stateDisconnected,
+		backoffInitialInterval: DefaultBackoffInitialInterval,
+		backoffMaxInterval:     DefaultBackoffMaxInterval,
+		backoffMaxElapsedTime:  DefaultBackoffMaxElapsedTime,
+		monitorInterval:        DefaultGRPCMonitorInterval,
+	}
+	for _, option := range opts {
+		option(c)
+	}
+
+	// Check for environment variables
+	if err := SetFromEnvVariable(grpcBackoffInitialInterval, &c.backoffInitialInterval); err != nil {
+		logger.Warnw(context.Background(), "failure-reading-env-variable", log.Fields{"error": err, "variable": grpcBackoffInitialInterval})
+	}
+
+	if err := SetFromEnvVariable(grpcBackoffMaxInterval, &c.backoffMaxInterval); err != nil {
+		logger.Warnw(context.Background(), "failure-reading-env-variable", log.Fields{"error": err, "variable": grpcBackoffMaxInterval})
+	}
+
+	if err := SetFromEnvVariable(grpcBackoffMaxElapsedTime, &c.backoffMaxElapsedTime); err != nil {
+		logger.Warnw(context.Background(), "failure-reading-env-variable", log.Fields{"error": err, "variable": grpcBackoffMaxElapsedTime})
+	}
+
+	if err := SetFromEnvVariable(grpcMonitorInterval, &c.monitorInterval); err != nil {
+		logger.Warnw(context.Background(), "failure-reading-env-variable", log.Fields{"error": err, "variable": grpcMonitorInterval})
+	}
+
+	logger.Infow(context.Background(), "initialized-client", log.Fields{"client": c})
+
+	// Sanity check
+	if c.backoffInitialInterval > c.backoffMaxInterval {
+		return nil, fmt.Errorf("initial retry delay %v is greater than maximum retry delay %v", c.backoffInitialInterval, c.backoffMaxInterval)
+	}
+
+	grpc.EnableTracing = true
+
+	return c, nil
+}
+
+func (c *Client) GetClient() (interface{}, error) {
+	c.connectionLock.RLock()
+	defer c.connectionLock.RUnlock()
+	if c.service == nil {
+		return nil, fmt.Errorf("no connection to %s", c.serverEndPoint)
+	}
+	return c.service, nil
+}
+
+// GetCoreServiceClient is a helper function that returns a concrete service instead of the GetClient() API
+// which returns an interface
+func (c *Client) GetCoreServiceClient() (core_service.CoreServiceClient, error) {
+	c.connectionLock.RLock()
+	defer c.connectionLock.RUnlock()
+	if c.service == nil {
+		return nil, fmt.Errorf("no core connection to %s", c.serverEndPoint)
+	}
+	client, ok := c.service.(core_service.CoreServiceClient)
+	if ok {
+		return client, nil
+	}
+	return nil, fmt.Errorf("invalid-service-%s", reflect.TypeOf(c.service))
+}
+
+// GetOnuAdapterServiceClient is a helper function that returns a concrete service instead of the GetClient() API
+// which returns an interface
+func (c *Client) GetOnuInterAdapterServiceClient() (onu_inter_adapter_service.OnuInterAdapterServiceClient, error) {
+	c.connectionLock.RLock()
+	defer c.connectionLock.RUnlock()
+	if c.service == nil {
+		return nil, fmt.Errorf("no child adapter connection to %s", c.serverEndPoint)
+	}
+	client, ok := c.service.(onu_inter_adapter_service.OnuInterAdapterServiceClient)
+	if ok {
+		return client, nil
+	}
+	return nil, fmt.Errorf("invalid-service-%s", reflect.TypeOf(c.service))
+}
+
+// GetOltAdapterServiceClient is a helper function that returns a concrete service instead of the GetClient() API
+// which returns an interface
+func (c *Client) GetOltInterAdapterServiceClient() (olt_inter_adapter_service.OltInterAdapterServiceClient, error) {
+	c.connectionLock.RLock()
+	defer c.connectionLock.RUnlock()
+	if c.service == nil {
+		return nil, fmt.Errorf("no parent adapter connection to %s", c.serverEndPoint)
+	}
+	client, ok := c.service.(olt_inter_adapter_service.OltInterAdapterServiceClient)
+	if ok {
+		return client, nil
+	}
+	return nil, fmt.Errorf("invalid-service-%s", reflect.TypeOf(c.service))
+}
+
+// GetAdapterServiceClient is a helper function that returns a concrete service instead of the GetClient() API
+// which returns an interface
+func (c *Client) GetAdapterServiceClient() (adapter_service.AdapterServiceClient, error) {
+	c.connectionLock.RLock()
+	defer c.connectionLock.RUnlock()
+	if c.service == nil {
+		return nil, fmt.Errorf("no adapter service connection to %s", c.serverEndPoint)
+	}
+	client, ok := c.service.(adapter_service.AdapterServiceClient)
+	if ok {
+		return client, nil
+	}
+	return nil, fmt.Errorf("invalid-service-%s", reflect.TypeOf(c.service))
+}
+
+func (c *Client) Reset(ctx context.Context) {
+	logger.Debugw(ctx, "resetting-client-connection", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+	c.stateLock.Lock()
+	defer c.stateLock.Unlock()
+	if c.state == stateConnected {
+		c.state = stateDisconnected
+		c.events <- eventDisconnected
+	}
+}
+
+// executeWithTimeout runs a sending function (sf) along with a receiving one(rf) and returns an error, if any.
+// If the deadline d elapses first, it returns a grpc DeadlineExceeded error instead.
+func (c *Client) executeWithTimeout(sf func(*common.Connection) error, rf func() (interface{}, error), conn *common.Connection, d time.Duration) error {
+	errChan := make(chan error, 1)
+	go func() {
+		err := sf(conn)
+		logger.Debugw(context.Background(), "message-sent", log.Fields{"error": err, "qpi-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+		if err == nil {
+			response, err := rf()
+			logger.Debugw(context.Background(), "message-received", log.Fields{"error": err, "qpi-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "health": response})
+		}
+		errChan <- err
+		close(errChan)
+	}()
+	t := time.NewTimer(d)
+	select {
+	case <-t.C:
+		return status.Errorf(codes.DeadlineExceeded, "timeout-on-sending-message")
+	case err := <-errChan:
+		if !t.Stop() {
+			<-t.C
+		}
+		return err
+	}
+}
+
+func (c *Client) monitorConnection(ctx context.Context) {
+	logger.Debugw(ctx, "monitor-connection-started", log.Fields{"qpi-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+
+	// If we exit, assume disconnected
+	defer func() {
+		c.stateLock.Lock()
+		if !c.done && (c.state == stateConnected || c.state == stateValidatingConnection) {
+			// Handle only connected state here.  We need the validating state to know if we need to backoff before a retry
+			if c.state == stateConnected {
+				c.state = stateDisconnected
+			}
+			logger.Warnw(ctx, "sending-disconnect-event", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "curr-state": stateConnected, "new-state": c.state})
+			c.events <- eventDisconnected
+		} else {
+			logger.Debugw(ctx, "no-state-change-needed", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "state": c.state, "client-done": c.done})
+		}
+		c.stateLock.Unlock()
+		logger.Debugw(ctx, "monitor-connection-ended", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+	}()
+
+	c.connectionLock.RLock()
+	conn := c.connection
+	c.connectionLock.RUnlock()
+	if conn == nil {
+		logger.Errorw(ctx, "connection-nil", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+		return
+	}
+
+	// Get a new client using reflection. The server can implement any grpc service, but it
+	// needs to also implement the "StartKeepAliveStream" API
+	grpcReflectClient := grpcreflect.NewClient(ctx, rpb.NewServerReflectionClient(conn))
+	if grpcReflectClient == nil {
+		logger.Errorw(ctx, "grpc-reflect-client-nil", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+		return
+	}
+
+	// Get the list of services - there should be 2 services: a server reflection and the voltha service we are interested in
+	services, err := grpcReflectClient.ListServices()
+	if err != nil {
+		logger.Errorw(ctx, "list-services-error", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "error": err})
+		return
+	}
+
+	// Filter out the service
+	logger.Debugw(ctx, "services", log.Fields{"services": services})
+	serviceOfInterest := ""
+	for _, service := range services {
+		if strings.EqualFold(service, c.remoteServiceName) {
+			serviceOfInterest = service
+			break
+		}
+	}
+	if serviceOfInterest == "" {
+		logger.Errorw(ctx, "no-service-found", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "services": services, "expected-remote-service": c.remoteServiceName})
+		return
+	}
+
+	// Resolve the service
+	resolvedService, err := grpcReflectClient.ResolveService(serviceOfInterest)
+	if err != nil {
+		logger.Errorw(ctx, "service-error", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "service": resolvedService, "error": err})
+		return
+	}
+
+	// Find the method of interest
+	method := resolvedService.FindMethodByName("GetHealthStatus")
+	if method == nil {
+		logger.Errorw(ctx, "nil-method", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "service": resolvedService})
+		return
+	}
+	logger.Debugw(ctx, "resolved-to-method", log.Fields{"service": resolvedService.GetName(), "method": method.GetName()})
+
+	// Get a dynamic connection
+	dynamicConn := grpcdynamic.NewStub(conn)
+
+	// Get the stream and send this client information
+	streamCtx, streamDone := context.WithCancel(log.WithSpanFromContext(context.Background(), ctx))
+	defer streamDone()
+	stream, err := dynamicConn.InvokeRpcBidiStream(streamCtx, method)
+	if err != nil {
+		logger.Errorw(ctx, "stream-error", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "service": resolvedService, "error": err})
+		return
+	}
+
+	clientInfo := &common.Connection{
+		Endpoint:          c.clientEndpoint,
+		ContextInfo:       c.clientContextData,
+		KeepAliveInterval: int64(c.monitorInterval),
+	}
+
+	initialConnection := true
+loop:
+	for {
+		// Let's send a keep alive message with our info
+		err := c.executeWithTimeout(
+			func(conn *common.Connection) error { return stream.SendMsg(conn) },
+			func() (interface{}, error) { return stream.RecvMsg() },
+			clientInfo,
+			c.monitorInterval)
+
+		if err != nil {
+			// Any error means the far end is gone
+			logger.Errorw(ctx, "sending-stream-error", log.Fields{"error": err, "api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "context": stream.Context().Err()})
+			break loop
+		}
+		// Send a connect event
+		if initialConnection {
+			logger.Debugw(ctx, "first-stream-data-sent", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+			c.events <- eventConnected
+			initialConnection = false
+		}
+		logger.Debugw(ctx, "stream-data-sent", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+		// Update liveness, if configured
+		c.livenessLock.RLock()
+		if c.livenessCallback != nil {
+			go c.livenessCallback(time.Now())
+		}
+		c.livenessLock.RUnlock()
+
+		// Wait to send the next keep alive
+		keepAliveTimer := time.NewTimer(time.Duration(clientInfo.KeepAliveInterval))
+		select {
+		case <-ctx.Done():
+			logger.Warnw(ctx, "context-done", log.Fields{"api-endpont": c.serverEndPoint, "client": c.clientEndpoint})
+			break loop
+		case <-stream.Context().Done():
+			logger.Debugw(ctx, "stream-context-done", log.Fields{"api-endpoint": c.serverEndPoint, "stream-info": stream.Context(), "client": c.clientEndpoint})
+			break loop
+		case <-keepAliveTimer.C:
+			continue
+		}
+	}
+	if stream != nil {
+		if err := stream.CloseSend(); err != nil {
+			logger.Warnw(ctx, "closing-stream-error", log.Fields{"error": err, "api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+		}
+	}
+}
+
+// Start kicks off the adapter agent by trying to connect to the adapter
+func (c *Client) Start(ctx context.Context, handler GetServiceClient) {
+	logger.Debugw(ctx, "Starting GRPC - Client", log.Fields{"api-endpoint": c.serverEndPoint})
+
+	// If the context contains a k8s probe then register services
+	p := probe.GetProbeFromContext(ctx)
+	if p != nil {
+		p.RegisterService(ctx, c.serverEndPoint)
+	}
+
+	var monitorConnectionCtx context.Context
+	var monitorConnectionDone func()
+
+	initialConnection := true
+	c.events <- eventConnecting
+	backoff := NewBackoff(c.backoffInitialInterval, c.backoffMaxInterval, c.backoffMaxElapsedTime)
+	attempt := 1
+loop:
+	for {
+		select {
+		case <-ctx.Done():
+			logger.Warnw(ctx, "context-closing", log.Fields{"api_endpoint": c.serverEndPoint, "client": c.clientEndpoint, "context": ctx})
+			c.connectionLock.Lock()
+			if !c.done {
+				c.done = true
+				c.events <- eventStopped
+				close(c.events)
+			}
+			c.connectionLock.Unlock()
+			// break loop
+		case event := <-c.events:
+			logger.Debugw(ctx, "received-event", log.Fields{"event": event, "api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+			c.connectionLock.RLock()
+			// On a client stopped, just allow the stop event to go through
+			if c.done && event != eventStopped {
+				c.connectionLock.RUnlock()
+				logger.Debugw(ctx, "ignoring-event-on-client-stop", log.Fields{"event": event, "api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+				continue
+			}
+			c.connectionLock.RUnlock()
+			switch event {
+			case eventConnecting:
+				c.stateLock.Lock()
+				logger.Debugw(ctx, "connection-start", log.Fields{"api-endpoint": c.serverEndPoint, "attempts": attempt, "curr-state": c.state, "client": c.clientEndpoint})
+				if c.state == stateConnected {
+					c.state = stateDisconnected
+				}
+				if c.state != stateConnecting {
+					c.state = stateConnecting
+					go func() {
+						if err := c.connectToEndpoint(ctx, p); err != nil {
+							c.stateLock.Lock()
+							c.state = stateDisconnected
+							c.stateLock.Unlock()
+							logger.Errorw(ctx, "connection-failed", log.Fields{"api-endpoint": c.serverEndPoint, "attempt": attempt, "client": c.clientEndpoint, "error": err})
+
+							// Retry connection after a delay
+							if err = backoff.Backoff(ctx); err != nil {
+								// Context has closed or reached maximum elapsed time, if set
+								logger.Errorw(ctx, "retry-aborted", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "error": err})
+								return
+							}
+							attempt += 1
+							c.connectionLock.RLock()
+							if !c.done {
+								c.events <- eventConnecting
+							}
+							c.connectionLock.RUnlock()
+						}
+					}()
+				}
+				c.stateLock.Unlock()
+
+			case eventValidatingConnection:
+				logger.Debugw(ctx, "connection-validation", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+				c.stateLock.Lock()
+				if c.state != stateConnected {
+					c.state = stateValidatingConnection
+				}
+				c.stateLock.Unlock()
+				monitorConnectionCtx, monitorConnectionDone = context.WithCancel(context.Background())
+				go c.monitorConnection(monitorConnectionCtx)
+
+			case eventConnected:
+				attempt = 1
+				backoff.Reset()
+				c.stateLock.Lock()
+				logger.Debugw(ctx, "endpoint-connected", log.Fields{"api-endpoint": c.serverEndPoint, "curr-state": c.state, "client": c.clientEndpoint})
+				if c.state != stateConnected {
+					// Setup the service
+					c.connectionLock.RLock()
+					conn := c.connection
+					c.connectionLock.RUnlock()
+
+					subCtx, cancel := context.WithTimeout(ctx, c.backoffMaxInterval)
+					svc := handler(subCtx, conn)
+					if svc != nil {
+						c.service = svc
+						if p != nil {
+							p.UpdateStatus(ctx, c.serverEndPoint, probe.ServiceStatusRunning)
+						}
+						logger.Infow(ctx, "connected-to-endpoint", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+					} else {
+						// Should never happen, but just in case
+						logger.Warnw(ctx, "service-is-nil", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+						c.events <- eventDisconnected
+					}
+					cancel()
+					c.state = stateConnected
+					if initialConnection {
+						logger.Debugw(ctx, "initial-endpoint-connection", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+						initialConnection = false
+					} else {
+						logger.Debugw(ctx, "endpoint-reconnection", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+						// Trigger any callback on a restart
+						go func() {
+							err := c.onRestart(log.WithSpanFromContext(context.Background(), ctx), c.serverEndPoint)
+							if err != nil {
+								logger.Errorw(ctx, "unable-to-restart-endpoint", log.Fields{"error": err, "api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+							}
+						}()
+					}
+				}
+				c.stateLock.Unlock()
+
+			case eventDisconnected:
+				if p != nil {
+					p.UpdateStatus(ctx, c.serverEndPoint, probe.ServiceStatusNotReady)
+				}
+				connectionValidationFail := false
+				c.stateLock.Lock()
+				logger.Debugw(ctx, "endpoint-disconnected", log.Fields{"api-endpoint": c.serverEndPoint, "curr-state": c.state, "client": c.clientEndpoint})
+				if c.state == stateValidatingConnection {
+					connectionValidationFail = true
+					c.state = stateDisconnected
+				}
+				c.stateLock.Unlock()
+
+				// Stop the streaming connection
+				if monitorConnectionDone != nil {
+					monitorConnectionDone()
+					monitorConnectionDone = nil
+				}
+
+				if connectionValidationFail {
+					// Retry connection after a delay
+					if err := backoff.Backoff(ctx); err != nil {
+						// Context has closed or reached maximum elapsed time, if set
+						logger.Errorw(ctx, "retry-aborted", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "error": err})
+						return
+					}
+				}
+				c.connectionLock.RLock()
+				if !c.done {
+					c.events <- eventConnecting
+				}
+				c.connectionLock.RUnlock()
+
+			case eventStopped:
+				logger.Debugw(ctx, "endpoint-stopped", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+
+				if monitorConnectionDone != nil {
+					monitorConnectionDone()
+					monitorConnectionDone = nil
+				}
+				if err := c.closeConnection(ctx, p); err != nil {
+					logger.Errorw(ctx, "endpoint-closing-connection-failed", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "error": err})
+				}
+				break loop
+			case eventError:
+				logger.Errorw(ctx, "endpoint-error-event", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+			default:
+				logger.Errorw(ctx, "endpoint-unknown-event", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "error": event})
+			}
+		}
+	}
+
+	// Stop the streaming connection
+	if monitorConnectionDone != nil {
+		logger.Debugw(ctx, "closing-connection-monitoring", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+		monitorConnectionDone()
+	}
+
+	logger.Infow(ctx, "client-stopped", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+}
+
+func (c *Client) connectToEndpoint(ctx context.Context, p *probe.Probe) error {
+	if p != nil {
+		p.UpdateStatus(ctx, c.serverEndPoint, probe.ServiceStatusPreparing)
+	}
+
+	c.connectionLock.Lock()
+	defer c.connectionLock.Unlock()
+
+	if c.connection != nil {
+		_ = c.connection.Close()
+		c.connection = nil
+	}
+
+	c.service = nil
+
+	// Use Interceptors to:
+	// 1. automatically inject
+	// 2. publish Open Tracing Spans by this GRPC Client
+	// 3. detect connection failure on client calls such that the reconnection process can begin
+	conn, err := grpc.Dial(c.serverEndPoint,
+		grpc.WithInsecure(),
+		grpc.WithStreamInterceptor(grpc_middleware.ChainStreamClient(
+			grpc_opentracing.StreamClientInterceptor(grpc_opentracing.WithTracer(log.ActiveTracerProxy{})),
+		)),
+		grpc.WithUnaryInterceptor(grpc_middleware.ChainUnaryClient(
+			grpc_opentracing.UnaryClientInterceptor(grpc_opentracing.WithTracer(log.ActiveTracerProxy{})),
+		)),
+	)
+
+	if err == nil {
+		c.connection = conn
+		c.events <- eventValidatingConnection
+		return nil
+	} else {
+		logger.Warnw(ctx, "no-connection-to-endpoint", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint, "error": err})
+	}
+
+	if p != nil {
+		p.UpdateStatus(ctx, c.serverEndPoint, probe.ServiceStatusFailed)
+	}
+	return fmt.Errorf("no connection to api endpoint %s", c.serverEndPoint)
+}
+
+func (c *Client) closeConnection(ctx context.Context, p *probe.Probe) error {
+	if p != nil {
+		p.UpdateStatus(ctx, c.serverEndPoint, probe.ServiceStatusStopped)
+	}
+	logger.Infow(ctx, "client-closing-connection", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+
+	c.connectionLock.Lock()
+	defer c.connectionLock.Unlock()
+
+	if c.connection != nil {
+		err := c.connection.Close()
+		c.service = nil
+		c.connection = nil
+		return err
+	}
+
+	return nil
+}
+
+func (c *Client) Stop(ctx context.Context) {
+	logger.Infow(ctx, "client-stop-request-event-received", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+	c.connectionLock.Lock()
+	defer c.connectionLock.Unlock()
+	if !c.done {
+		c.done = true
+		c.events <- eventStopped
+		close(c.events)
+	}
+	logger.Infow(ctx, "client-stop-request-event-sent", log.Fields{"api-endpoint": c.serverEndPoint, "client": c.clientEndpoint})
+}
+
+// SetService is used for testing only
+func (c *Client) SetService(srv interface{}) {
+	c.connectionLock.Lock()
+	defer c.connectionLock.Unlock()
+	c.service = srv
+}
+
+func (c *Client) SubscribeForLiveness(callback func(timestamp time.Time)) {
+	c.livenessLock.Lock()
+	defer c.livenessLock.Unlock()
+	c.livenessCallback = callback
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/common.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/common.go
new file mode 100644
index 0000000..77aad4f
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/common.go
@@ -0,0 +1,31 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grpc
+
+import (
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
+)
+
+var logger log.CLogger
+
+func init() {
+	// Setup this package so that it's log level can be modified at run time
+	var err error
+	logger, err = log.RegisterPackage(log.JSON, log.ErrorLevel, log.Fields{})
+	if err != nil {
+		panic(err)
+	}
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/mock_core_service.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/mock_core_service.go
new file mode 100644
index 0000000..8365956
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/mock_core_service.go
@@ -0,0 +1,189 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+	"time"
+
+	"github.com/golang/protobuf/ptypes/empty"
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
+	"github.com/opencord/voltha-protos/v5/go/common"
+	ca "github.com/opencord/voltha-protos/v5/go/core_adapter"
+	"github.com/opencord/voltha-protos/v5/go/core_service"
+	"github.com/opencord/voltha-protos/v5/go/health"
+	"github.com/opencord/voltha-protos/v5/go/voltha"
+)
+
+//MockCoreServiceHandler implements the methods in the core service
+type MockCoreServiceHandler struct {
+	exitChannel chan struct{}
+}
+
+func NewMockCoreServiceHandler() *MockCoreServiceHandler {
+	return &MockCoreServiceHandler{exitChannel: make(chan struct{})}
+}
+
+func (handler *MockCoreServiceHandler) Start() {
+	logger.Debug(context.Background(), "starting-mock-core-service")
+}
+
+func (handler *MockCoreServiceHandler) Stop() {
+	logger.Debug(context.Background(), "stopping-mock-core-service")
+	close(handler.exitChannel)
+}
+
+func (handler *MockCoreServiceHandler) RegisterAdapter(ctx context.Context, reg *ca.AdapterRegistration) (*empty.Empty, error) {
+	//logger.Debugw(ctx, "registration-received", log.Fields{"input": reg})
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) DeviceUpdate(context.Context, *voltha.Device) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) PortCreated(context.Context, *voltha.Port) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) PortsStateUpdate(context.Context, *ca.PortStateFilter) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) DeleteAllPorts(context.Context, *common.ID) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) GetDevicePort(context.Context, *ca.PortFilter) (*voltha.Port, error) {
+	return &voltha.Port{}, nil
+}
+
+func (handler *MockCoreServiceHandler) ListDevicePorts(context.Context, *common.ID) (*voltha.Ports, error) {
+	return &voltha.Ports{}, nil
+}
+
+func (handler *MockCoreServiceHandler) DeviceStateUpdate(context.Context, *ca.DeviceStateFilter) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) DevicePMConfigUpdate(context.Context, *voltha.PmConfigs) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) ChildDeviceDetected(context.Context, *ca.DeviceDiscovery) (*voltha.Device, error) {
+	return &voltha.Device{}, nil
+}
+
+func (handler *MockCoreServiceHandler) ChildDevicesLost(context.Context, *common.ID) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) ChildDevicesDetected(context.Context, *common.ID) (*empty.Empty, error) {
+	time.Sleep(50 * time.Millisecond)
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) GetDevice(ctx context.Context, id *common.ID) (*voltha.Device, error) {
+	time.Sleep(50 * time.Millisecond)
+	vlan, _ := strconv.Atoi(id.Id)
+	return &voltha.Device{
+		Id:   id.Id,
+		Type: "test-1234",
+		Vlan: uint32(vlan),
+	}, nil
+}
+
+func (handler *MockCoreServiceHandler) GetChildDevice(context.Context, *ca.ChildDeviceFilter) (*voltha.Device, error) {
+	return nil, nil
+}
+
+func (handler *MockCoreServiceHandler) GetChildDevices(context.Context, *common.ID) (*voltha.Devices, error) {
+	return &voltha.Devices{}, nil
+}
+
+func (handler *MockCoreServiceHandler) SendPacketIn(context.Context, *ca.PacketIn) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) DeviceReasonUpdate(context.Context, *ca.DeviceReason) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) PortStateUpdate(context.Context, *ca.PortState) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+// Additional API found in the Core - unused?
+func (handler *MockCoreServiceHandler) ReconcileChildDevices(context.Context, *common.ID) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) GetChildDeviceWithProxyAddress(context.Context, *voltha.Device_ProxyAddress) (*voltha.Device, error) {
+	return &voltha.Device{}, nil
+}
+
+func (handler *MockCoreServiceHandler) GetPorts(context.Context, *ca.PortFilter) (*voltha.Ports, error) {
+	return &voltha.Ports{}, nil
+}
+
+func (handler *MockCoreServiceHandler) ChildrenStateUpdate(context.Context, *ca.DeviceStateFilter) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) UpdateImageDownload(context.Context, *voltha.ImageDownload) (*empty.Empty, error) {
+	return &empty.Empty{}, nil
+}
+
+func (handler *MockCoreServiceHandler) GetHealthStatus(stream core_service.CoreService_GetHealthStatusServer) error {
+	logger.Debugw(context.Background(), "keep-alive-connection", log.Fields{"stream": stream})
+	if stream == nil {
+		return fmt.Errorf("stream-is-nil %v", stream)
+	}
+	var err error
+	var remoteClient *common.Connection
+	var tempClient *common.Connection
+	ctx := context.Background()
+loop:
+	for {
+		tempClient, err = stream.Recv()
+		if err != nil {
+			logger.Warnw(ctx, "received-stream-error", log.Fields{"remote-client": remoteClient, "error": err})
+			break loop
+		}
+		// Send a response back
+		err = stream.Send(&health.HealthStatus{State: health.HealthStatus_HEALTHY})
+		if err != nil {
+			logger.Warnw(ctx, "sending-stream-error", log.Fields{"remote-client": remoteClient, "error": err})
+			break loop
+		}
+
+		remoteClient = tempClient
+		logger.Debugw(ctx, "received-keep-alive", log.Fields{"remote-client": remoteClient})
+		select {
+		case <-stream.Context().Done():
+			logger.Infow(ctx, "stream-keep-alive-context-done", log.Fields{"remote-client": remoteClient, "error": stream.Context().Err()})
+			break loop
+		case <-handler.exitChannel:
+			logger.Warnw(ctx, "received-stop", log.Fields{"remote-client": remoteClient})
+			break loop
+		default:
+		}
+	}
+	logger.Errorw(context.Background(), "connection-down", log.Fields{"remote-client": remoteClient, "error": err})
+	return err
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/security.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/security.go
new file mode 100644
index 0000000..930d2c8
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/security.go
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grpc
+
+type GrpcSecurity struct {
+	KeyFile  string
+	CertFile string
+	CaFile   string
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/server.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/server.go
new file mode 100644
index 0000000..bee418d
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/server.go
@@ -0,0 +1,180 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grpc
+
+import (
+	"context"
+	"net"
+
+	grpc_middleware "github.com/grpc-ecosystem/go-grpc-middleware"
+	grpc_opentracing "github.com/grpc-ecosystem/go-grpc-middleware/tracing/opentracing"
+	"github.com/opencord/voltha-lib-go/v7/pkg/log"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/reflection"
+	"google.golang.org/grpc/status"
+)
+
+/*
+To add a GRPC server to your existing component simply follow these steps:
+
+1. Create a server instance by passing the host and port where it should run and optionally add certificate information
+
+	e.g.
+	s.server = server.NewGrpcServer(s.config.GrpcHost, s.config.GrpcPort, nil, false)
+
+2. Create a function that will register your service with the GRPC server
+
+    e.g.
+	f := func(gs *grpc.Server) {
+		voltha.RegisterVolthaReadOnlyServiceServer(
+			gs,
+			core.NewReadOnlyServiceHandler(s.root),
+		)
+	}
+
+3. Add the service to the server
+
+    e.g.
+	s.server.AddService(f)
+
+4. Start the server
+
+	s.server.Start(ctx)
+*/
+
+// Interface allows probes to be attached to server
+// A probe must support the IsReady() method
+type ReadyProbe interface {
+	IsReady() bool
+}
+
+type GrpcServer struct {
+	gs       *grpc.Server
+	address  string
+	secure   bool
+	services []func(*grpc.Server)
+	probe    ReadyProbe // optional
+
+	*GrpcSecurity
+}
+
+/*
+Instantiate a GRPC server data structure
+*/
+func NewGrpcServer(
+	address string,
+	certs *GrpcSecurity,
+	secure bool,
+	probe ReadyProbe,
+) *GrpcServer {
+	server := &GrpcServer{
+		address:      address,
+		secure:       secure,
+		GrpcSecurity: certs,
+		probe:        probe,
+	}
+	return server
+}
+
+/*
+Start prepares the GRPC server and starts servicing requests
+*/
+func (s *GrpcServer) Start(ctx context.Context) {
+
+	lis, err := net.Listen("tcp", s.address)
+	if err != nil {
+		logger.Fatalf(ctx, "failed to listen: %v", err)
+	}
+
+	// Use Intercepters to automatically inject and publish Open Tracing Spans by this GRPC server
+	serverOptions := []grpc.ServerOption{
+		grpc.StreamInterceptor(grpc_middleware.ChainStreamServer(
+			grpc_opentracing.StreamServerInterceptor(grpc_opentracing.WithTracer(log.ActiveTracerProxy{})),
+		)),
+		grpc.UnaryInterceptor(grpc_middleware.ChainUnaryServer(
+			grpc_opentracing.UnaryServerInterceptor(grpc_opentracing.WithTracer(log.ActiveTracerProxy{})),
+			mkServerInterceptor(s),
+		))}
+
+	if s.secure && s.GrpcSecurity != nil {
+		creds, err := credentials.NewServerTLSFromFile(s.CertFile, s.KeyFile)
+		if err != nil {
+			logger.Fatalf(ctx, "could not load TLS keys: %s", err)
+		}
+
+		serverOptions = append(serverOptions, grpc.Creds(creds))
+		s.gs = grpc.NewServer(serverOptions...)
+	} else {
+		logger.Info(ctx, "starting-insecure-grpc-server")
+		s.gs = grpc.NewServer(serverOptions...)
+	}
+
+	// Register all required services
+	for _, service := range s.services {
+		service(s.gs)
+	}
+	reflection.Register(s.gs)
+
+	if err := s.gs.Serve(lis); err != nil {
+		logger.Fatalf(ctx, "failed to serve: %v\n", err)
+	}
+}
+
+// Make a serverInterceptor for the given GrpcServer
+// This interceptor will check whether there is an attached probe,
+// and if that probe indicates NotReady, then an UNAVAILABLE
+// response will be returned.
+func mkServerInterceptor(s *GrpcServer) func(ctx context.Context,
+	req interface{},
+	info *grpc.UnaryServerInfo,
+	handler grpc.UnaryHandler) (interface{}, error) {
+
+	return func(ctx context.Context,
+		req interface{},
+		info *grpc.UnaryServerInfo,
+		handler grpc.UnaryHandler) (interface{}, error) {
+
+		if (s.probe != nil) && (!s.probe.IsReady()) {
+			logger.Warnf(ctx, "Grpc request received while not ready %v", req)
+			return nil, status.Error(codes.Unavailable, "system is not ready")
+		}
+
+		// Calls the handler
+		h, err := handler(ctx, req)
+
+		return h, err
+	}
+}
+
+/*
+Stop servicing GRPC requests
+*/
+func (s *GrpcServer) Stop() {
+	if s.gs != nil {
+		s.gs.Stop()
+	}
+}
+
+/*
+AddService appends a generic service request function
+*/
+func (s *GrpcServer) AddService(
+	registerFunction func(*grpc.Server),
+) {
+	s.services = append(s.services, registerFunction)
+}
diff --git a/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/utils.go b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/utils.go
new file mode 100644
index 0000000..85686de
--- /dev/null
+++ b/vendor/github.com/opencord/voltha-lib-go/v7/pkg/grpc/utils.go
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2021-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package grpc
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"math"
+	"os"
+	"reflect"
+	"sync"
+	"time"
+)
+
+const (
+	incrementalFactor = 1.5
+	minBackOff        = 10 * time.Millisecond
+)
+
+type Backoff struct {
+	attempt          int
+	initialInterval  time.Duration
+	maxElapsedTime   time.Duration
+	maxInterval      time.Duration
+	totalElapsedTime time.Duration
+	mutex            sync.RWMutex
+}
+
+func NewBackoff(initialInterval, maxInterval, maxElapsedTime time.Duration) *Backoff {
+	bo := &Backoff{}
+	bo.initialInterval = initialInterval
+	bo.maxInterval = maxInterval
+	bo.maxElapsedTime = maxElapsedTime
+	return bo
+}
+
+func (bo *Backoff) Backoff(ctx context.Context) error {
+	duration, err := bo.getBackOffDuration()
+	if err != nil {
+		return err
+	}
+
+	ticker := time.NewTicker(duration)
+	defer ticker.Stop()
+	select {
+	case <-ctx.Done():
+		return ctx.Err()
+	case <-ticker.C:
+	}
+	return nil
+}
+
+func (bo *Backoff) getBackOffDuration() (duration time.Duration, err error) {
+	err = nil
+	defer func() {
+		bo.mutex.Lock()
+		defer bo.mutex.Unlock()
+		bo.attempt += 1
+		bo.totalElapsedTime += duration
+		if bo.maxElapsedTime > 0 && bo.totalElapsedTime > bo.maxElapsedTime {
+			err = errors.New("max elapsed backoff time reached")
+		}
+	}()
+
+	if bo.initialInterval <= minBackOff {
+		bo.initialInterval = minBackOff
+	}
+	if bo.initialInterval > bo.maxInterval {
+		duration = bo.initialInterval
+		return
+	}
+
+	// Calculate incremental duration
+	minf := float64(bo.initialInterval)
+	durf := minf * math.Pow(incrementalFactor, float64(bo.attempt))
+
+	if durf > math.MaxInt64 {
+		duration = bo.maxInterval
+		return
+	}
+	duration = time.Duration(durf)
+
+	//Keep within bounds
+	if duration < bo.initialInterval {
+		duration = bo.initialInterval
+	}
+	if duration > bo.maxInterval {
+		duration = bo.maxInterval
+	}
+	return
+}
+
+func (bo *Backoff) Reset() {
+	bo.mutex.Lock()
+	defer bo.mutex.Unlock()
+	bo.attempt = 0
+	bo.totalElapsedTime = 0
+}
+
+func SetFromEnvVariable(key string, variableToSet interface{}) error {
+	if _, ok := variableToSet.(*time.Duration); !ok {
+		return fmt.Errorf("unsupported type %T", variableToSet)
+	}
+	if valStr, present := os.LookupEnv(key); present {
+		val, err := time.ParseDuration(valStr)
+		if err != nil {
+			return err
+		}
+		reflect.ValueOf(variableToSet).Elem().Set(reflect.ValueOf(val))
+	}
+	return nil
+}