/
kernel_param_config.go
100 lines (83 loc) · 2.7 KB
/
kernel_param_config.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"
"fmt"
"github.com/cosi-project/runtime/pkg/controller"
"github.com/cosi-project/runtime/pkg/resource"
"github.com/cosi-project/runtime/pkg/safe"
"github.com/cosi-project/runtime/pkg/state"
"github.com/siderolabs/gen/optional"
"go.uber.org/zap"
"github.com/siderolabs/talos/pkg/machinery/kernel"
"github.com/siderolabs/talos/pkg/machinery/resources/config"
"github.com/siderolabs/talos/pkg/machinery/resources/runtime"
)
// KernelParamConfigController watches v1alpha1.Config, creates/updates/deletes kernel param specs.
type KernelParamConfigController struct{}
// Name implements controller.Controller interface.
func (ctrl *KernelParamConfigController) Name() string {
return "runtime.KernelParamConfigController"
}
// Inputs implements controller.Controller interface.
func (ctrl *KernelParamConfigController) Inputs() []controller.Input {
return []controller.Input{
{
Namespace: config.NamespaceName,
Type: config.MachineConfigType,
ID: optional.Some(config.V1Alpha1ID),
},
}
}
// Outputs implements controller.Controller interface.
func (ctrl *KernelParamConfigController) Outputs() []controller.Output {
return []controller.Output{
{
Type: runtime.KernelParamSpecType,
Kind: controller.OutputShared,
},
}
}
// Run implements controller.Controller interface.
//
//nolint:gocyclo
func (ctrl *KernelParamConfigController) Run(ctx context.Context, r controller.Runtime, logger *zap.Logger) error {
for {
select {
case <-ctx.Done():
return nil
case <-r.EventCh():
}
cfg, err := safe.ReaderGetByID[*config.MachineConfig](ctx, r, config.V1Alpha1ID)
if err != nil {
if !state.IsNotFoundError(err) {
return fmt.Errorf("error getting config: %w", err)
}
}
r.StartTrackingOutputs()
setKernelParam := func(kind, key, value string) error {
item := runtime.NewKernelParamSpec(runtime.NamespaceName, kind+"."+key)
return r.Modify(ctx, item, func(res resource.Resource) error {
res.(*runtime.KernelParamSpec).TypedSpec().Value = value
return nil
})
}
if cfg != nil && cfg.Config().Machine() != nil {
for key, value := range cfg.Config().Machine().Sysctls() {
if err = setKernelParam(kernel.Sysctl, key, value); err != nil {
return err
}
}
for key, value := range cfg.Config().Machine().Sysfs() {
if err = setKernelParam(kernel.Sysfs, key, value); err != nil {
return err
}
}
}
if err = safe.CleanupOutputs[*runtime.KernelParamSpec](ctx, r); err != nil {
return err
}
}
}