GoogleContainerTools/skaffold · error

determining build workspace directory for image %v: %w

Error message

determining build workspace directory for image %v: %w

What it means

NewSyncEnvOpts builds the environment for container sync hooks, starting from the artifact's build workspace directory (a.Workspace) which is expected to be a relative path from the skaffold config. It calls filepath.Abs on it; if that OS call fails (rare), the error is wrapped as 'determining build workspace directory for image %v'. Because a.Workspace is set by skaffold itself during config loading, this almost always indicates a nil/empty Artifact or an artifact constructed programmatically.

Source

Thrown at pkg/skaffold/hooks/sync.go:41

	"io"
	"path/filepath"
	"strings"

	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/kubectl"
	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/kubernetes/logger"
	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/output"
	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/schema/latest"
	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/util"
)

func NewSyncRunner(cli *kubectl.CLI, imageName, imageRef string, namespaces []string, formatter logger.Formatter, d latest.SyncHooks, opts SyncEnvOpts) Runner {
	return syncRunner{d, cli, imageName, imageRef, namespaces, formatter, opts}
}

func NewSyncEnvOpts(a *latest.Artifact, image string, addOrModifyFiles []string, deleteFiles []string, namespaces []string, kubeContext string) (SyncEnvOpts, error) {
	workDir, err := filepath.Abs(a.Workspace)
	if err != nil {
		return SyncEnvOpts{}, fmt.Errorf("determining build workspace directory for image %v: %w", a.ImageName, err)
	}
	return SyncEnvOpts{
		Image:                image,
		BuildContext:         workDir,
		FilesAddedOrModified: util.Ptr(strings.Join(addOrModifyFiles, ";")),
		FilesDeleted:         util.Ptr(strings.Join(deleteFiles, ";")),
		KubeContext:          kubeContext,
		Namespaces:           strings.Join(namespaces, ","),
	}, nil
}

type syncRunner struct {
	latest.SyncHooks
	cli        *kubectl.CLI
	imageName  string
	imageRef   string
	namespaces []string
	formatter  logger.Formatter

View on GitHub (pinned to a1189de023)

Solutions

1. Set a valid Workspace on the artifact (relative path to the build context) before calling NewSyncEnvOpts
2. Check the OS error wrapped in the message (%w) — fix the underlying cause (missing cwd, path length, permissions)
3. Call filepath.EvalSymlinks/clean the path beforehand if symlinks or unusual formatting are involved

Example fix

// before
artifact := &latest.Artifact{ImageName: "my-app"}
opts, err := hooks.NewSyncEnvOpts(artifact, image, add, del, ns, kubeCtx)
// after
artifact := &latest.Artifact{ImageName: "my-app", Workspace: "./backend"}
opts, err := hooks.NewSyncEnvOpts(artifact, image, add, del, ns, kubeCtx)

if a == nil || a.Workspace == "" {
    return fmt.Errorf("artifact %s has no Workspace set before NewSyncEnvOpts", image)
}
if _, err := filepath.Abs(a.Workspace); err != nil {
    return fmt.Errorf("workspace path %q invalid: %w", a.Workspace, err)
}

opts, err := hooks.NewSyncEnvOpts(a, image, add, del, ns, kubeCtx)
if err != nil {
    return fmt.Errorf("sync env setup failed: %w", err) // unwrap to see the OS path error
}

When it happens

Trigger: Calling NewSyncEnvOpts with an *latest.Artifact whose Workspace is empty or invalid, so filepath.Abs("") or Abs on a path that cannot be resolved fails on the current OS.

Common situations: Programmatic/SDK use building a latest.Artifact without setting Workspace; hand-written config tooling invoking skaffold internals; extremely long paths exceeding OS limits on Windows.

Related errors

• determining build workspace directory for image %v: %w
• failed to execute host %s hook %d for artifact %q: %w
• failed to execute container %s hook %d for artifact %q: %w
• intersecting sync map and added, modified files: %w
• intersecting sync map and deleted files: %w

AI-assisted analysis of GoogleContainerTools/skaffold@a1189de023 (2026-09-05). Data as JSON: /api/errors/7cd1b4d543cad021. Report an issue: GitHub.