Manager: use logger from context instead of constructing a new one

This makes the logs more consistent, and any log that's bound to a HTTP
request will have info about that request.

internal/manager/api_impl/worker_auth.go

@@ -9,6 +9,7 @@ import (
 	oapi_middle "github.com/deepmap/oapi-codegen/pkg/middleware"
 	"github.com/getkin/kin-openapi/openapi3filter"
 	"github.com/labstack/echo/v4"
+	"github.com/rs/zerolog"
 	"golang.org/x/crypto/bcrypt"
 
 	"git.blender.org/flamenco/internal/manager/persistence"
@@ -63,6 +64,15 @@ func WorkerAuth(ctx context.Context, authInfo *openapi3filter.AuthenticationInpu
 func requestWorkerStore(e echo.Context, w *persistence.Worker) {
 	req := e.Request()
 	reqCtx := context.WithValue(req.Context(), workerKey, w)
+
+	// Update the logger in this context to reflect the Worker.
+	l := zerolog.Ctx(reqCtx)
+	l.UpdateContext(func(c zerolog.Context) zerolog.Context {
+		return c.
+			Str("wUUID", w.UUID).
+			Str("wName", w.Name)
+	})
+
 	e.SetRequest(req.WithContext(reqCtx))
 }
 

internal/manager/api_impl/zerolog.go

@@ -9,16 +9,6 @@ import (
 )
 
 func requestLogger(e echo.Context) zerolog.Logger {
-	logCtx := log.With().
+	logger := log.Ctx(e.Request().Context())
-		Str("remoteAddr", e.RealIP()).
+	return *logger
-		Str("userAgent", e.Request().UserAgent())
-
-	worker := requestWorker(e)
-	if worker != nil {
-		logCtx = logCtx.
-			Str("wUUID", worker.UUID).
-			Str("wName", worker.Name)
-	}
-
-	return logCtx.Logger()
 }