fix: use imager incoming version for extension validation

cmd/installer/pkg/install/extensions.go

@@ -16,11 +16,12 @@ import (
 
 func (i *Installer) installExtensions() error {
 	builder := extensions.Builder{
-		InitramfsPath:     fmt.Sprintf(constants.InitramfsAssetPath, i.options.Arch),
-		Arch:              i.options.Arch,
-		ExtensionTreePath: constants.SystemExtensionsPath,
-		Printf:            log.Printf,
-		Quirks:            quirks.New(i.options.Version),
+		InitramfsPath:             fmt.Sprintf(constants.InitramfsAssetPath, i.options.Arch),
+		Arch:                      i.options.Arch,
+		ExtensionTreePath:         constants.SystemExtensionsPath,
+		ExtensionValidateContents: true,
+		Printf:                    log.Printf,
+		Quirks:                    quirks.New(i.options.Version),
 	}
 
 	return builder.Build()

pkg/imager/extensions/extensions.go

@@ -24,6 +24,8 @@ type Builder struct {
 	Arch string
 	// ExtensionTreePath is a path to the extracted extension tree.
 	ExtensionTreePath string
+	// ExtensionValidateContents enables validation of the extension contents.
+	ExtensionValidateContents bool
 	// Printf is used for logging.
 	Printf func(format string, v ...any)
 	// Quirks for the Talos version being used.
@@ -95,8 +97,17 @@ func (builder *Builder) Build() error {
 func (builder *Builder) validateExtensions(extensions []*extensions.Extension) error {
 	builder.Printf("validating system extensions")
 
+	opts := []extinterface.ValidationOption{
+		extinterface.WithValidateConstraints(),
+		extinterface.WithTalosVersion(builder.Quirks.Version()),
+	}
+
+	if builder.ExtensionValidateContents {
+		opts = append(opts, extinterface.WithValidateContents())
+	}
+
 	for _, ext := range extensions {
-		if err := ext.Validate(); err != nil {
+		if err := ext.Validate(opts...); err != nil {
 			return fmt.Errorf("error validating extension %q: %w", ext.Manifest.Metadata.Name, err)
 		}
 	}

pkg/machinery/extensions/extensions_test.go

@@ -8,11 +8,11 @@ import (
 	"path/filepath"
 	"testing"
 
+	"github.com/blang/semver/v4"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	"github.com/siderolabs/talos/pkg/machinery/extensions"
-	"github.com/siderolabs/talos/pkg/machinery/version"
 )
 
 func TestLoadValidate(t *testing.T) {
@@ -21,25 +21,19 @@ func TestLoadValidate(t *testing.T) {
 
 	assert.Equal(t, "gvisor", ext.Manifest.Metadata.Name)
 
-	// override Talos version to make it predictable
-	oldVersion := version.Tag
-	version.Tag = "v1.0.0"
-
-	t.Cleanup(func() {
-		version.Tag = oldVersion
-	})
+	version, err := semver.Parse("1.0.0")
+	require.NoError(t, err)
 
-	assert.NoError(t, ext.Validate())
+	assert.NoError(t, ext.Validate(
+		extensions.WithValidateConstraints(),
+		extensions.WithValidateContents(),
+		extensions.WithTalosVersion(version),
+	))
 }
 
 func TestValidateFailures(t *testing.T) {
-	// override Talos version to make it predictable
-	oldVersion := version.Tag
-	version.Tag = "v1.0.0"
-
-	t.Cleanup(func() {
-		version.Tag = oldVersion
-	})
+	version, err := semver.Parse("1.0.0")
+	require.NoError(t, err)
 
 	for _, tt := range []struct {
 		name          string
@@ -73,7 +67,12 @@ func TestValidateFailures(t *testing.T) {
 			}
 
 			if err == nil {
-				err = ext.Validate()
+				err = ext.Validate(
+					extensions.WithValidateConstraints(),
+					extensions.WithValidateContents(),
+					extensions.WithTalosVersion(version),
+				)
+
 				assert.EqualError(t, err, tt.validateError)
 			}
 		})

pkg/machinery/extensions/validate.go

@@ -16,24 +16,83 @@ import (
 	"github.com/siderolabs/talos/pkg/machinery/version"
 )
 
-// Validate the extension: compatibility, contents, etc.
-func (ext *Extension) Validate() error {
-	if err := ext.validateConstraints(); err != nil {
-		return err
+// ValidationOptions are used to configure the validation process.
+type ValidationOptions struct {
+	// ValidateContstraints enables validation of the extension constraints.
+	ValidateContstraints bool
+	// ValidateContents enables validation of the extension contents.
+	ValidateContents bool
+
+	// TalosVersion is the version of Talos to validate against.
+	TalosVersion *semver.Version
+}
+
+// WithValidateConstraints enables validation of the extension constraints.
+func WithValidateConstraints() ValidationOption {
+	return func(o *ValidationOptions) error {
+		o.ValidateContstraints = true
+
+		return nil
+	}
+}
+
+// WithValidateContents enables validation of the extension contents.
+func WithValidateContents() ValidationOption {
+	return func(o *ValidationOptions) error {
+		o.ValidateContents = true
+
+		return nil
 	}
+}
+
+// WithTalosVersion sets the Talos version to validate against.
+func WithTalosVersion(version semver.Version) ValidationOption {
+	return func(o *ValidationOptions) error {
+		o.TalosVersion = &version
 
-	return ext.validateContents()
+		return nil
+	}
 }
 
-func (ext *Extension) validateConstraints() error {
-	constraint := ext.Manifest.Metadata.Compatibility.Talos.Version
+// ValidationOption is a function that configures the validation options.
+type ValidationOption func(*ValidationOptions) error
 
-	if constraint != "" {
-		talosVersion, err := semver.ParseTolerant(version.Tag)
+// Validate the extension: compatibility, contents, etc.
+func (ext *Extension) Validate(opts ...ValidationOption) error {
+	validationOptions := &ValidationOptions{}
+
+	for _, opt := range opts {
+		if err := opt(validationOptions); err != nil {
+			panic(err)
+		}
+	}
+
+	if validationOptions.TalosVersion == nil {
+		version, err := semver.ParseTolerant(version.Tag)
 		if err != nil {
 			return err
 		}
 
+		validationOptions.TalosVersion = &version
+	}
+
+	if validationOptions.ValidateContstraints {
+		if err := ext.validateConstraints(*validationOptions.TalosVersion); err != nil {
+			return err
+		}
+	}
+
+	if validationOptions.ValidateContents {
+		return ext.validateContents()
+	}
+
+	return nil
+}
+
+func (ext *Extension) validateConstraints(talosVersion semver.Version) error {
+	constraint := ext.Manifest.Metadata.Compatibility.Talos.Version
+
+	if constraint != "" {
 		versionConstraint, err := semver.ParseRange(trim(constraint))
 		if err != nil {
 			return fmt.Errorf("error parsing Talos version constraint: %w", err)

pkg/machinery/imager/quirks/quirks.go

@@ -29,6 +29,11 @@ func New(talosVersion string) Quirks {
 
 var minVersionResetOption = semver.MustParse("1.4.0")
 
+// Version returns the Talos version.
+func (q Quirks) Version() semver.Version {
+	return *q.v
+}
+
 // SupportsResetGRUBOption returns true if the Talos version supports the reset option in GRUB menu (image and ISO).
 func (q Quirks) SupportsResetGRUBOption() bool {
 	// if the version doesn't parse, we assume it's latest Talos