/
nodename.go
123 lines (102 loc) · 3.13 KB
/
nodename.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"
"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"
"github.com/siderolabs/talos/internal/app/machined/pkg/controllers/k8s/internal/nodename"
"github.com/siderolabs/talos/pkg/machinery/resources/config"
"github.com/siderolabs/talos/pkg/machinery/resources/k8s"
"github.com/siderolabs/talos/pkg/machinery/resources/network"
)
// NodenameController renders manifests based on templates and config/secrets.
type NodenameController struct{}
// Name implements controller.Controller interface.
func (ctrl *NodenameController) Name() string {
return "k8s.NodenameController"
}
// Inputs implements controller.Controller interface.
func (ctrl *NodenameController) Inputs() []controller.Input {
return []controller.Input{
{
Namespace: config.NamespaceName,
Type: config.MachineConfigType,
ID: optional.Some(config.V1Alpha1ID),
Kind: controller.InputWeak,
},
{
Namespace: network.NamespaceName,
Type: network.HostnameStatusType,
ID: optional.Some(network.HostnameID),
Kind: controller.InputWeak,
},
}
}
// Outputs implements controller.Controller interface.
func (ctrl *NodenameController) Outputs() []controller.Output {
return []controller.Output{
{
Type: k8s.NodenameType,
Kind: controller.OutputExclusive,
},
}
}
// Run implements controller.Controller interface.
//
//nolint:gocyclo
func (ctrl *NodenameController) 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) {
continue
}
return fmt.Errorf("error getting config: %w", err)
}
cfgProvider := cfg.Config()
if cfgProvider.Machine() == nil {
continue
}
hostnameStatus, err := safe.ReaderGetByID[*network.HostnameStatus](ctx, r, network.HostnameID)
if err != nil {
if state.IsNotFoundError(err) {
continue
}
return err
}
if err = safe.WriterModify(
ctx,
r,
k8s.NewNodename(k8s.NamespaceName, k8s.NodenameID),
func(res *k8s.Nodename) error {
var hostname string
if cfgProvider.Machine().Kubelet().RegisterWithFQDN() {
hostname = hostnameStatus.TypedSpec().FQDN()
} else {
hostname = hostnameStatus.TypedSpec().Hostname
}
res.TypedSpec().Nodename, err = nodename.FromHostname(hostname)
if err != nil {
return err
}
res.TypedSpec().HostnameVersion = hostnameStatus.Metadata().Version().String()
res.TypedSpec().SkipNodeRegistration = cfgProvider.Machine().Kubelet().SkipNodeRegistration()
return nil
},
); err != nil {
return fmt.Errorf("error modifying nodename resource: %w", err)
}
r.ResetRestartBackoff()
}
}