/
node_taint_spec.go
112 lines (94 loc) · 3.01 KB
/
node_taint_spec.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 k8s
import (
"context"
"fmt"
"strings"
"github.com/cosi-project/runtime/pkg/controller"
"github.com/cosi-project/runtime/pkg/safe"
"github.com/cosi-project/runtime/pkg/state"
"github.com/siderolabs/gen/optional"
"go.uber.org/zap"
v1 "k8s.io/api/core/v1"
"github.com/siderolabs/talos/pkg/machinery/constants"
"github.com/siderolabs/talos/pkg/machinery/resources/config"
"github.com/siderolabs/talos/pkg/machinery/resources/k8s"
)
// NodeTaintSpecController manages k8s.NodeTaintSpec based on configuration.
type NodeTaintSpecController struct{}
// Name implements controller.Controller interface.
func (ctrl *NodeTaintSpecController) Name() string {
return "k8s.NodeTaintSpecController"
}
// Inputs implements controller.Controller interface.
func (ctrl *NodeTaintSpecController) Inputs() []controller.Input {
return []controller.Input{
{
Namespace: config.NamespaceName,
Type: config.MachineConfigType,
ID: optional.Some(config.V1Alpha1ID),
Kind: controller.InputWeak,
},
}
}
// Outputs implements controller.Controller interface.
func (ctrl *NodeTaintSpecController) Outputs() []controller.Output {
return []controller.Output{
{
Type: k8s.NodeTaintSpecType,
Kind: controller.OutputExclusive,
},
}
}
// Run implements controller.Controller interface.
//
//nolint:gocyclo
func (ctrl *NodeTaintSpecController) Run(ctx context.Context, r controller.Runtime, _ *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 && !state.IsNotFoundError(err) {
return fmt.Errorf("error getting config: %w", err)
}
r.StartTrackingOutputs()
if cfg != nil && cfg.Config().Machine() != nil {
if cfg.Config().Cluster() != nil {
if cfg.Config().Machine().Type().IsControlPlane() && !cfg.Config().Cluster().ScheduleOnControlPlanes() {
if err = createTaint(ctx, r, constants.LabelNodeRoleControlPlane, "", string(v1.TaintEffectNoSchedule)); err != nil {
return err
}
}
}
for key, val := range cfg.Config().Machine().NodeTaints() {
value, effect, found := strings.Cut(val, ":")
if !found {
effect = value
value = ""
}
if err = createTaint(ctx, r, key, value, effect); err != nil {
return err
}
}
}
if err = safe.CleanupOutputs[*k8s.NodeTaintSpec](ctx, r); err != nil {
return err
}
}
}
func createTaint(ctx context.Context, r controller.Runtime, key string, val string, effect string) error {
if err := safe.WriterModify(ctx, r, k8s.NewNodeTaintSpec(key), func(k *k8s.NodeTaintSpec) error {
k.TypedSpec().Key = key
k.TypedSpec().Value = val
k.TypedSpec().Effect = effect
return nil
}); err != nil {
return fmt.Errorf("error updating node taint spec: %w", err)
}
return nil
}