fix: Minor fixes (#1075)

A batch of small, self-contained fixes and docs/example additions.

Fixes #625 - align the example config's `force_pull` with the actual default (`false`)
Fixes #804 - return an error instead of discarding `os.UserHomeDir()` when defaulting `cache.dir`/`host.workdir_parent`
Fixes #571 - send a `gitea-runner/<version>` User-Agent on API requests
Fixes #650 - detect an `Unauthenticated` fetch response and exit the daemon with an error instead of retrying forever
Fixes #766 - add `exec --eventpath` to supply a JSON event payload file
Fixes #256 - add a `bug-report` subcommand that prints version/Go/OS-arch/CPU info
Fixes #617 - add `runner.set_act_env` (default `true`) to optionally omit the `ACT=true` env var
Fixes #635 - record a failure result (and guard a nil reusable-workflow caller) when the job `if`-expression fails to evaluate
Fixes #1005 - remove README docs for config env-var overrides that were already removed from the code
Fixes #448 - clarify in `exec --job` help that `--workflows` may be needed to disambiguate
Fixes #209 - note that `host`-labelled runners still need Docker for `docker://` actions and service containers
Fixes #757 - add a systemd service example with automatic restart
Fixes #474 - add a Kubernetes StatefulSet example that persists the `.runner` registration across reschedules
Fixes #776 - build the basic (non-dind) docker image for `linux/riscv64`
Fixes #628 - build the basic (non-dind) docker image for `linux/s390x`Reviewed-on: https://gitea.com/gitea/runner/pulls/1075
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>

internal/app/cmd/bug_report.go

@@ -0,0 +1,31 @@
+// Copyright 2026 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"fmt"
+	"runtime"
+
+	"gitea.com/gitea/runner/internal/pkg/ver"
+
+	"github.com/spf13/cobra"
+)
+
+// loadBugReportCmd prints environment details that are useful when opening a
+// bug report, so users can paste them straight into an issue.
+func loadBugReportCmd() *cobra.Command {
+	return &cobra.Command{
+		Use:   "bug-report",
+		Short: "Print information useful when filing a bug report",
+		Args:  cobra.MaximumNArgs(0),
+		RunE: func(cmd *cobra.Command, _ []string) error {
+			w := cmd.OutOrStdout()
+			fmt.Fprintf(w, "Runner version: %s\n", ver.Version())
+			fmt.Fprintf(w, "Go version:     %s\n", runtime.Version())
+			fmt.Fprintf(w, "OS/Arch:        %s/%s\n", runtime.GOOS, runtime.GOARCH)
+			fmt.Fprintf(w, "NumCPU:         %d\n", runtime.NumCPU())
+			return nil
+		},
+	}
+}

internal/app/cmd/cmd.go

@@ -56,6 +56,9 @@ func Execute(ctx context.Context) {
 	// ./gitea-runner exec
 	rootCmd.AddCommand(loadExecCmd(ctx))
 
+	// ./gitea-runner bug-report
+	rootCmd.AddCommand(loadBugReportCmd())
+
 	// ./gitea-runner config
 	rootCmd.AddCommand(&cobra.Command{
 		Use:   "generate-config",

internal/app/cmd/daemon.go

@@ -176,7 +176,12 @@ func runDaemon(ctx context.Context, daemArgs *daemonArgs, configFile *string) fu
 		} else {
 			go poller.Poll()
 
-			<-ctx.Done()
+			// Stop either on an external cancellation or when the poller shuts
+			// itself down (e.g. after the runner has been unregistered).
+			select {
+			case <-ctx.Done():
+			case <-poller.Done():
+			}
 		}
 
 		log.Infof("runner: %s shutdown initiated, waiting %s for running jobs to complete before shutting down", resp.Msg.Runner.Name, cfg.Runner.ShutdownTimeout)
@@ -189,6 +194,10 @@ func runDaemon(ctx context.Context, daemArgs *daemonArgs, configFile *string) fu
 			log.Warnf("runner: %s cancelled in progress jobs during shutdown", resp.Msg.Runner.Name)
 		}
 
+		if poller.Unregistered() {
+			return errors.New("runner is no longer registered with the server; please register it again")
+		}
+
 		return nil
 	}
 }

internal/app/cmd/exec.go

@@ -34,6 +34,7 @@ type executeArgs struct {
 	runList               bool
 	job                   string
 	event                 string
+	eventpath             string
 	workdir               string
 	workflowsPath         string
 	noWorkflowRecurse     bool
@@ -441,6 +442,7 @@ func runExec(ctx context.Context, execArgs *executeArgs) func(cmd *cobra.Command
 			ArtifactServerPort:    execArgs.artifactServerPort,
 			ArtifactServerAddr:    execArgs.artifactServerAddr,
 			NoSkipCheckout:        execArgs.noSkipCheckout,
+			EventPath:             execArgs.resolve(execArgs.eventpath),
 			// PresetGitHubContext:   preset,
 			// EventJSON:             string(eventJSON),
 			ContainerNamePrefix:               "GITEA-ACTIONS-TASK-" + eventName,
@@ -496,8 +498,9 @@ func loadExecCmd(ctx context.Context) *cobra.Command {
 	}
 
 	execCmd.Flags().BoolVarP(&execArg.runList, "list", "l", false, "list workflows")
-	execCmd.Flags().StringVarP(&execArg.job, "job", "j", "", "run a specific job ID")
+	execCmd.Flags().StringVarP(&execArg.job, "job", "j", "", "run a specific job ID; when several workflow files define that job, also pass --workflows/-W to select the file")
 	execCmd.Flags().StringVarP(&execArg.event, "event", "E", "", "run a event name")
+	execCmd.Flags().StringVarP(&execArg.eventpath, "eventpath", "e", "", "path to a JSON event payload file exposed as the event that triggered the workflow")
 	execCmd.PersistentFlags().StringVarP(&execArg.workflowsPath, "workflows", "W", "./.gitea/workflows/", "path to workflow file(s)")
 	execCmd.PersistentFlags().StringVarP(&execArg.workdir, "directory", "C", ".", "working directory")
 	execCmd.PersistentFlags().BoolVarP(&execArg.noWorkflowRecurse, "no-recurse", "", false, "Flag to disable running workflows from subdirectories of specified path in '--workflows'/'-W' flag")

internal/app/poll/poller.go

@@ -45,6 +45,10 @@ type Poller struct {
 	shutdownJobs context.CancelFunc
 
 	done chan struct{}
+
+	// unregistered is set when the server rejects the runner with an
+	// Unauthenticated response, meaning the runner is no longer registered.
+	unregistered atomic.Bool
 }
 
 // workerState holds the single poller's backoff state. Consecutive empty or
@@ -137,6 +141,19 @@ func (p *Poller) PollOnce() {
 	}
 }
 
+// Done returns a channel that is closed once polling has fully stopped,
+// allowing callers to react when the poller shuts itself down (e.g. after the
+// runner has been unregistered) rather than only on an external cancellation.
+func (p *Poller) Done() <-chan struct{} {
+	return p.done
+}
+
+// Unregistered reports whether polling stopped because the server rejected the
+// runner as unregistered (an Unauthenticated response).
+func (p *Poller) Unregistered() bool {
+	return p.unregistered.Load()
+}
+
 func (p *Poller) runIdleMaintenance() {
 	if idleRunner, ok := p.runner.(IdleRunner); ok {
 		idleRunner.OnIdle(p.jobsCtx)
@@ -264,6 +281,15 @@ func (p *Poller) fetchTask(ctx context.Context, s *workerState) (*runnerv1.Task,
 	metrics.PollFetchDuration.Observe(time.Since(start).Seconds())
 
 	if err != nil {
+		// An Unauthenticated response means the server no longer knows this
+		// runner (e.g. it was deleted). Retrying forever is pointless, so stop
+		// polling and let the daemon exit with an error instead of spinning.
+		if connect.CodeOf(err) == connect.CodeUnauthenticated {
+			log.WithError(err).Error("server rejected the runner as unregistered, stopping poller")
+			p.unregistered.Store(true)
+			p.shutdownPolling()
+			return nil, false
+		}
 		log.WithError(err).Error("failed to fetch task")
 		s.consecutiveErrors++
 		metrics.PollFetchTotal.WithLabelValues(metrics.LabelResultError).Inc()

internal/app/poll/poller_test.go

@@ -78,6 +78,35 @@ func TestPoller_FetchErrorIncrementsErrorsOnly(t *testing.T) {
 	assert.Equal(t, int64(0), s.consecutiveEmpty)
 }
 
+// TestPoller_FetchUnauthenticatedStopsPolling verifies that an Unauthenticated
+// response marks the runner as unregistered and cancels the polling context so
+// the daemon can exit instead of retrying forever.
+func TestPoller_FetchUnauthenticatedStopsPolling(t *testing.T) {
+	client := mocks.NewClient(t)
+	client.On("FetchTask", mock.Anything, mock.Anything).Return(
+		func(_ context.Context, _ *connect_go.Request[runnerv1.FetchTaskRequest]) (*connect_go.Response[runnerv1.FetchTaskResponse], error) {
+			return nil, connect_go.NewError(connect_go.CodeUnauthenticated, errors.New("unregistered runner"))
+		},
+	)
+
+	cfg, err := config.LoadDefault("")
+	require.NoError(t, err)
+	p := New(cfg, client, nil)
+
+	s := &workerState{}
+	_, ok := p.fetchTask(context.Background(), s)
+	require.False(t, ok)
+
+	assert.True(t, p.Unregistered(), "runner should be marked unregistered")
+	assert.Equal(t, int64(0), s.consecutiveErrors, "unauthenticated must not drive error backoff")
+
+	select {
+	case <-p.pollingCtx.Done():
+	default:
+		t.Fatal("expected polling context to be cancelled after an Unauthenticated response")
+	}
+}
+
 // TestPoller_CalculateInterval verifies the exponential backoff math is
 // correctly driven by the workerState counters.
 func TestPoller_CalculateInterval(t *testing.T) {

internal/app/run/runner.go

@@ -445,6 +445,7 @@ func (r *Runner) run(ctx context.Context, task *runnerv1.Task, reporter *report.
 		GitHubInstance:       strings.TrimSuffix(r.client.Address(), "/"),
 		AutoRemove:           true,
 		NoSkipCheckout:       true,
+		DisableActEnv:        r.cfg.Runner.SetActEnv != nil && !*r.cfg.Runner.SetActEnv,
 		PresetGitHubContext:  preset,
 		EventJSON:            string(eventJSON),
 		ContainerNamePrefix:  fmt.Sprintf("GITEA-ACTIONS-TASK-%d", task.Id),