fix: don't panic when logs waits for more than 5 seconds

docker.go

@@ -69,7 +69,7 @@ type DockerContainer struct {
 	terminationSignal chan bool
 	consumers         []LogConsumer
 	raw               *types.ContainerJSON
-	stopProducer      chan bool
+	stopProducer      context.CancelFunc
 	logger            Logging
 	lifecycleHooks    []ContainerLifecycleHooks
 }
@@ -632,9 +632,9 @@ func (c *DockerContainer) StartLogProducer(ctx context.Context) error {
 		return errors.New("log producer already started")
 	}
 
-	c.stopProducer = make(chan bool)
+	ctx, c.stopProducer = context.WithCancel(ctx)
 
-	go func(stop <-chan bool) {
+	go func() {
 		since := ""
 		// if the socket is closed we will make additional logs request with updated Since timestamp
 	BEGIN:
@@ -645,20 +645,22 @@ func (c *DockerContainer) StartLogProducer(ctx context.Context) error {
 			Since:      since,
 		}
 
-		ctx, cancel := context.WithTimeout(ctx, time.Second*5)
-		defer cancel()
-
 		r, err := c.provider.client.ContainerLogs(ctx, c.GetContainerID(), options)
 		if err != nil {
-			// if we can't get the logs, panic, we can't return an error to anything
-			// from within this goroutine
-			panic(err)
+			// if we can't get the logs, retry in one second.
+			c.logger.Printf("cannot get logs for container %q: %v", c.ID, err)
+			if ctx.Err() != nil {
+				// context done.
+				return
+			}
+			time.Sleep(1 * time.Second)
+			goto BEGIN
 		}
 		defer c.provider.Close()
 
 		for {
 			select {
-			case <-stop:
+			case <-ctx.Done():
 				err := r.Close()
 				if err != nil {
 					// we can't close the read closer, this should never happen
@@ -709,7 +711,7 @@ func (c *DockerContainer) StartLogProducer(ctx context.Context) error {
 				}
 			}
 		}
-	}(c.stopProducer)
+	}()
 
 	return nil
 }
@@ -718,7 +720,8 @@ func (c *DockerContainer) StartLogProducer(ctx context.Context) error {
 // and sending them to each added LogConsumer
 func (c *DockerContainer) StopLogProducer() error {
 	if c.stopProducer != nil {
-		c.stopProducer <- true
+		// Cancel the producer's context.
+		c.stopProducer()
 		c.stopProducer = nil
 	}
 	return nil