/
actuator.go
216 lines (174 loc) · 7.14 KB
/
actuator.go
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package worker
import (
"context"
"fmt"
"time"
"github.com/gardener/gardener/extensions/pkg/util"
extensionscontroller "github.com/gardener/gardener/extensions/pkg/controller"
"github.com/gardener/gardener/extensions/pkg/controller/worker"
"github.com/gardener/gardener/extensions/pkg/controller/worker/genericactuator"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/config"
apismetal "github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/imagevector"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/metal"
metalclient "github.com/metal-stack/gardener-extension-provider-metal/pkg/metal/client"
metalgo "github.com/metal-stack/metal-go"
"github.com/metal-stack/metal-go/api/models"
"github.com/metal-stack/metal-lib/pkg/cache"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
gardener "github.com/gardener/gardener/pkg/client/kubernetes"
"github.com/go-logr/logr"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/manager"
)
type (
// actuator reconciles the cluster's worker nodes and the firewalls.
// we are wrapping gardener's worker actuator here because we need to intercept the migrate call from the actuator.
// unfortunately, there is no callback provided which we could use for this.
//
// why is the firewall reconciliation here and not in the controlplane controller?
//
// the controlplane controller deploys the firewall-controller-manager including validating and mutating webhooks
// this has to be running before we can create a firewall deployment because the mutating webhook is creating the userdata
// the worker controller acts after the controlplane controller, also the terms and responsibilities are pretty similar between machine-controller-manager and firewall-controller-manager,
// so this place seems to be a valid fit.
actuator struct {
controllerConfig config.ControllerConfiguration
workerActuator worker.Actuator
networkCache *cache.Cache[*cacheKey, *models.V1NetworkResponse]
client client.Client
decoder runtime.Decoder
restConfig *rest.Config
scheme *runtime.Scheme
}
delegateFactory struct {
controllerConfig config.ControllerConfiguration
clientGetter func() (*rest.Config, client.Client, *runtime.Scheme, runtime.Decoder)
dataGetter func(ctx context.Context, worker *extensionsv1alpha1.Worker, cluster *extensionscontroller.Cluster) (*additionalData, error)
machineImageMapping []config.MachineImage
}
workerDelegate struct {
logger logr.Logger
client client.Client
scheme *runtime.Scheme
decoder runtime.Decoder
machineImageMapping []config.MachineImage
seedChartApplier gardener.ChartApplier
serverVersion string
cluster *extensionscontroller.Cluster
worker *extensionsv1alpha1.Worker
machineClasses []map[string]interface{}
machineDeployments worker.MachineDeployments
machineImages []apismetal.MachineImage
controllerConfig config.ControllerConfiguration
additionalData *additionalData
}
)
func NewActuator(mgr manager.Manager, machineImages []config.MachineImage, controllerConfig config.ControllerConfiguration) (worker.Actuator, error) {
a := &actuator{
controllerConfig: controllerConfig,
networkCache: cache.New(15*time.Minute, func(ctx context.Context, accessor *cacheKey) (*models.V1NetworkResponse, error) {
mclient, ok := ctx.Value(ClientKey).(metalgo.Client)
if !ok {
return nil, fmt.Errorf("no client passed in context")
}
privateNetwork, err := metalclient.GetPrivateNetworkFromNodeNetwork(ctx, mclient, accessor.projectID, accessor.nodeCIDR)
if err != nil {
return nil, err
}
return privateNetwork, nil
}),
client: mgr.GetClient(),
decoder: serializer.NewCodecFactory(mgr.GetScheme(), serializer.EnableStrict).UniversalDecoder(),
restConfig: mgr.GetConfig(),
scheme: mgr.GetScheme(),
}
delegateFactory := &delegateFactory{
clientGetter: func() (*rest.Config, client.Client, *runtime.Scheme, runtime.Decoder) {
return a.restConfig, a.client, a.scheme, a.decoder
},
dataGetter: a.getAdditionalData,
controllerConfig: controllerConfig,
machineImageMapping: machineImages,
}
var err error
a.workerActuator, err = genericactuator.NewActuator(
mgr,
delegateFactory,
metal.MachineControllerManagerName,
mcmChart,
mcmShootChart,
imagevector.ImageVector(),
extensionscontroller.ChartRendererFactoryFunc(util.NewChartRendererForShoot),
func(err error) []gardencorev1beta1.ErrorCode {
return util.DetermineErrorCodes(err, map[gardencorev1beta1.ErrorCode]func(string) bool{}) // TODO: implement our error codes?
},
)
return a, err
}
func (a *actuator) Reconcile(ctx context.Context, log logr.Logger, worker *extensionsv1alpha1.Worker, cluster *extensionscontroller.Cluster) error {
err := a.firewallReconcile(ctx, log, worker, cluster)
if err != nil {
return err
}
return a.workerActuator.Reconcile(ctx, log, worker, cluster)
}
func (a *actuator) Delete(ctx context.Context, log logr.Logger, worker *extensionsv1alpha1.Worker, cluster *extensionscontroller.Cluster) error {
err := a.workerActuator.Delete(ctx, log, worker, cluster)
if err != nil {
return err
}
return a.firewallDelete(ctx, log, cluster)
}
func (a *actuator) Migrate(ctx context.Context, log logr.Logger, worker *extensionsv1alpha1.Worker, cluster *extensionscontroller.Cluster) error {
err := a.workerActuator.Migrate(ctx, log, worker, cluster)
if err != nil {
return err
}
return a.firewallMigrate(ctx, log, cluster)
}
func (a *actuator) Restore(ctx context.Context, log logr.Logger, worker *extensionsv1alpha1.Worker, cluster *extensionscontroller.Cluster) error {
err := a.firewallRestore(ctx, log, worker, cluster)
if err != nil {
return err
}
return a.workerActuator.Restore(ctx, log, worker, cluster)
}
func (d *delegateFactory) WorkerDelegate(ctx context.Context, worker *extensionsv1alpha1.Worker, cluster *extensionscontroller.Cluster) (genericactuator.WorkerDelegate, error) {
config, client, scheme, decoder := d.clientGetter()
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
return nil, err
}
serverVersion, err := clientset.Discovery().ServerVersion()
if err != nil {
return nil, err
}
seedChartApplier, err := gardener.NewChartApplierForConfig(config)
if err != nil {
return nil, err
}
additionalData, err := d.dataGetter(ctx, worker, cluster)
if err != nil {
return nil, err
}
return &workerDelegate{
logger: log.Log.WithName("metal-worker-delegate").WithValues("cluster", cluster.ObjectMeta.Name),
client: client,
scheme: scheme,
decoder: decoder,
machineImageMapping: d.machineImageMapping,
seedChartApplier: seedChartApplier,
serverVersion: serverVersion.GitVersion,
cluster: cluster,
worker: worker,
controllerConfig: d.controllerConfig,
additionalData: additionalData,
}, nil
}