Wait for tracer to be done before finishing workflow (woodpecker-ci#4068

)

agent/rpc/client_grpc.go

@@ -72,13 +72,13 @@ func (c *client) Version(ctx context.Context) (*rpc.Version, error) {
 }
 
 // Next returns the next workflow in the queue.
-func (c *client) Next(ctx context.Context, f rpc.Filter) (*rpc.Workflow, error) {
+func (c *client) Next(ctx context.Context, filter rpc.Filter) (*rpc.Workflow, error) {
 	var res *proto.NextResponse
 	var err error
 	retry := c.newBackOff()
 	req := new(proto.NextRequest)
 	req.Filter = new(proto.Filter)
-	req.Filter.Labels = f.Labels
+	req.Filter.Labels = filter.Labels
 	for {
 		res, err = c.client.Next(ctx, req)
 		if err == nil {
@@ -135,10 +135,10 @@ func (c *client) Next(ctx context.Context, f rpc.Filter) (*rpc.Workflow, error)
 }
 
 // Wait blocks until the workflow is complete.
-func (c *client) Wait(ctx context.Context, id string) (err error) {
+func (c *client) Wait(ctx context.Context, workflowID string) (err error) {
 	retry := c.newBackOff()
 	req := new(proto.WaitRequest)
-	req.Id = id
+	req.Id = workflowID
 	for {
 		_, err = c.client.Wait(ctx, req)
 		if err == nil {
@@ -273,10 +273,10 @@ func (c *client) Done(ctx context.Context, workflowID string, state rpc.Workflow
 }
 
 // Extend extends the workflow deadline.
-func (c *client) Extend(ctx context.Context, id string) (err error) {
+func (c *client) Extend(ctx context.Context, workflowID string) (err error) {
 	retry := c.newBackOff()
 	req := new(proto.ExtendRequest)
-	req.Id = id
+	req.Id = workflowID
 	for {
 		_, err = c.client.Extend(ctx, req)
 		if err == nil {
@@ -317,10 +317,10 @@ func (c *client) Extend(ctx context.Context, id string) (err error) {
 }
 
 // Update updates the workflow state.
-func (c *client) Update(ctx context.Context, id string, state rpc.StepState) (err error) {
+func (c *client) Update(ctx context.Context, workflowID string, state rpc.StepState) (err error) {
 	retry := c.newBackOff()
 	req := new(proto.UpdateRequest)
-	req.Id = id
+	req.Id = workflowID
 	req.State = new(proto.StepState)
 	req.State.StepUuid = state.StepUUID
 	req.State.Started = state.Started
@@ -367,7 +367,7 @@ func (c *client) Update(ctx context.Context, id string, state rpc.StepState) (er
 	return nil
 }
 
-// Log writes the workflow log entry.
+// Log writes the step log entry.
 func (c *client) Log(ctx context.Context, logEntry *rpc.LogEntry) (err error) {
 	retry := c.newBackOff()
 	req := new(proto.LogRequest)

agent/runner.go

@@ -105,7 +105,6 @@ func (r *Runner) Run(runnerCtx, shutdownCtx context.Context) error { //nolint:co
 		if err := r.client.Wait(workflowCtx, workflow.ID); err != nil {
 			canceled = true
 			logger.Warn().Err(err).Msg("cancel signal received")
-
 			cancel()
 		} else {
 			logger.Debug().Msg("done listening for cancel signal")
@@ -117,11 +116,10 @@ func (r *Runner) Run(runnerCtx, shutdownCtx context.Context) error { //nolint:co
 			select {
 			case <-workflowCtx.Done():
 				logger.Debug().Msg("pipeline done")
-
 				return
+
 			case <-time.After(time.Minute):
 				logger.Debug().Msg("pipeline lease renewed")
-
 				if err := r.client.Extend(workflowCtx, workflow.ID); err != nil {
 					log.Error().Err(err).Msg("extending pipeline deadline failed")
 				}
@@ -144,7 +142,7 @@ func (r *Runner) Run(runnerCtx, shutdownCtx context.Context) error { //nolint:co
 		pipeline.WithContext(workflowCtx),
 		pipeline.WithTaskUUID(fmt.Sprint(workflow.ID)),
 		pipeline.WithLogger(r.createLogger(logger, &uploads, workflow)),
-		pipeline.WithTracer(r.createTracer(ctxMeta, logger, workflow)),
+		pipeline.WithTracer(r.createTracer(ctxMeta, &uploads, logger, workflow)),
 		pipeline.WithBackend(*r.backend),
 		pipeline.WithDescription(map[string]string{
 			"workflow_id":     workflow.ID,
@@ -170,9 +168,9 @@ func (r *Runner) Run(runnerCtx, shutdownCtx context.Context) error { //nolint:co
 		Bool("canceled", canceled).
 		Msg("workflow finished")
 
-	logger.Debug().Msg("uploading logs ...")
+	logger.Debug().Msg("uploading logs and traces / states ...")
 	uploads.Wait()
-	logger.Debug().Msg("uploaded logs")
+	logger.Debug().Msg("uploaded logs and traces / states")
 
 	logger.Debug().
 		Str("error", state.Error).

agent/tracer.go

@@ -18,6 +18,7 @@ import (
 	"context"
 	"runtime"
 	"strconv"
+	"sync"
 	"time"
 
 	"github.com/rs/zerolog"
@@ -26,11 +27,13 @@ import (
 	"go.woodpecker-ci.org/woodpecker/v2/pipeline/rpc"
 )
 
-func (r *Runner) createTracer(ctxMeta context.Context, logger zerolog.Logger, workflow *rpc.Workflow) pipeline.TraceFunc {
+func (r *Runner) createTracer(ctxMeta context.Context, uploads *sync.WaitGroup, logger zerolog.Logger, workflow *rpc.Workflow) pipeline.TraceFunc {
 	return func(state *pipeline.State) error {
+		uploads.Add(1)
+
 		stepLogger := logger.With().
 			Str("image", state.Pipeline.Step.Image).
-			Str("workflowID", workflow.ID).
+			Str("workflow_id", workflow.ID).
 			Err(state.Process.Error).
 			Int("exit_code", state.Process.ExitCode).
 			Bool("exited", state.Process.Exited).
@@ -57,6 +60,7 @@ func (r *Runner) createTracer(ctxMeta context.Context, logger zerolog.Logger, wo
 			}
 
 			stepLogger.Debug().Msg("update step status complete")
+			uploads.Done()
 		}()
 		if state.Process.Exited {
 			return nil

pipeline/pipeline.go

@@ -258,9 +258,9 @@ func (r *Runtime) exec(step *backend.Step) (*backend.State, error) {
 		return nil, nil
 	}
 
-	// Some pipeline backends, such as local, will close the pipe from Tail on Wait,
-	// so first make sure all reading has finished.
+	// We wait until all data was logged. (Needed for some backends like local as WaitStep kills the log stream)
 	wg.Wait()
+
 	waitState, err := r.engine.WaitStep(r.ctx, step, r.taskUUID)
 	if err != nil {
 		if errors.Is(err, context.Canceled) {