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extension_status.go
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/
extension_status.go
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// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package runtime
import (
"context"
"errors"
"fmt"
"io"
"strings"
"github.com/cosi-project/runtime/pkg/controller"
"github.com/cosi-project/runtime/pkg/resource"
"go.uber.org/zap"
"github.com/siderolabs/talos/pkg/machinery/constants"
"github.com/siderolabs/talos/pkg/machinery/extensions"
"github.com/siderolabs/talos/pkg/machinery/resources/runtime"
)
// ExtensionStatusController loads extensions.yaml and updates ExtensionStatus resources.
type ExtensionStatusController struct{}
// Name implements controller.Controller interface.
func (ctrl *ExtensionStatusController) Name() string {
return "runtime.ExtensionStatusController"
}
// Inputs implements controller.Controller interface.
func (ctrl *ExtensionStatusController) Inputs() []controller.Input {
return nil
}
// Outputs implements controller.Controller interface.
func (ctrl *ExtensionStatusController) Outputs() []controller.Output {
return []controller.Output{
{
Type: runtime.ExtensionStatusType,
Kind: controller.OutputExclusive,
},
}
}
// Run implements controller.Controller interface.
func (ctrl *ExtensionStatusController) Run(ctx context.Context, r controller.Runtime, logger *zap.Logger) error {
// controller runs once, as extensions are static
select {
case <-ctx.Done():
return nil
case <-r.EventCh():
}
var cfg extensions.Config
if err := cfg.Read(constants.ExtensionsRuntimeConfigFile); err != nil {
if errors.Is(err, io.EOF) {
// no extensions installed
return nil
}
return fmt.Errorf("failed loading extensions config: %w", err)
}
for _, layer := range cfg.Layers {
id := strings.TrimSuffix(layer.Image, ".sqsh")
if err := r.Modify(ctx, runtime.NewExtensionStatus(runtime.NamespaceName, id), func(res resource.Resource) error {
*res.(*runtime.ExtensionStatus).TypedSpec() = *layer
return nil
}); err != nil {
return err
}
}
return nil
}