/
add.go
183 lines (154 loc) · 5.92 KB
/
add.go
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package controlplane
import (
"context"
"errors"
extensionswebhook "github.com/gardener/gardener/extensions/pkg/webhook"
extensionscontextwebhook "github.com/gardener/gardener/extensions/pkg/webhook/context"
gcontext "github.com/gardener/gardener/extensions/pkg/webhook/context"
"github.com/gardener/gardener/extensions/pkg/webhook/controlplane"
"github.com/gardener/gardener/extensions/pkg/webhook/controlplane/genericmutator"
"github.com/go-logr/logr"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/config"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal/helper"
metalv1alpha1 "github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal/v1alpha1"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/metal"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/component/extensions/operatingsystemconfig/original/components/kubelet"
oscutils "github.com/gardener/gardener/pkg/component/extensions/operatingsystemconfig/utils"
appsv1 "k8s.io/api/apps/v1"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
"sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/log"
"sigs.k8s.io/controller-runtime/pkg/manager"
)
var (
// DefaultAddOptions are the default AddOptions for AddToManager.
DefaultAddOptions = AddOptions{}
logger = log.Log.WithName("metal-controlplane-webhook")
)
// AddOptions are options to apply when adding the metal infrastructure controller to the manager.
type AddOptions struct {
// Controller are the controller.Options.
ControllerConfig config.ControllerConfiguration
}
func AddToManagerWithOptions(mgr manager.Manager, opts AddOptions) (*extensionswebhook.Webhook, error) {
logger.Info("Adding webhook to manager")
return controlplane.New(mgr, controlplane.Args{
Kind: controlplane.KindShoot,
Provider: metal.Type,
Types: []extensionswebhook.Type{
{Obj: &appsv1.Deployment{}},
{Obj: &extensionsv1alpha1.OperatingSystemConfig{}},
},
Mutator: newMutator(mgr, opts.ControllerConfig),
})
}
// AddToManager creates a webhook and adds it to the manager.
func AddToManager(mgr manager.Manager) (*extensionswebhook.Webhook, error) {
return AddToManagerWithOptions(mgr, DefaultAddOptions)
}
type mutator struct {
logger logr.Logger
client client.Client
decoder runtime.Decoder
gardenerMutator extensionswebhook.Mutator
}
func newMutator(mgr manager.Manager, c config.ControllerConfiguration) extensionswebhook.Mutator {
fciCodec := oscutils.NewFileContentInlineCodec()
gardenerMutator := genericmutator.NewMutator(mgr, NewEnsurer(mgr, logger, c), oscutils.NewUnitSerializer(),
kubelet.NewConfigCodec(fciCodec), fciCodec, logger)
return &mutator{
logger: logger,
gardenerMutator: gardenerMutator,
client: mgr.GetClient(),
decoder: serializer.NewCodecFactory(mgr.GetScheme()).UniversalDecoder(),
}
}
func (m *mutator) Mutate(ctx context.Context, new, old client.Object) error {
// If the object does have a deletion timestamp then we don't want to mutate anything.
if new.GetDeletionTimestamp() != nil {
return nil
}
gctx := extensionscontextwebhook.NewGardenContext(m.client, new)
switch x := new.(type) {
case *extensionsv1alpha1.OperatingSystemConfig:
var oldOSC *extensionsv1alpha1.OperatingSystemConfig
if old != nil {
var ok bool
oldOSC, ok = old.(*extensionsv1alpha1.OperatingSystemConfig)
if !ok {
return errors.New("could not cast old object to extensionsv1alpha1.OperatingSystemConfig")
}
}
extensionswebhook.LogMutation(m.logger, x.Kind, x.Namespace, x.Name)
err := m.mutateOperatingSystemConfig(ctx, gctx, x, oldOSC)
if err != nil {
return err
}
}
return m.gardenerMutator.Mutate(ctx, new, old)
}
func (m *mutator) mutateOperatingSystemConfig(ctx context.Context, gctx gcontext.GardenContext, osc, _ *extensionsv1alpha1.OperatingSystemConfig) error {
cluster, err := gctx.GetCluster(ctx)
if err != nil {
return err
}
cloudProfileConfig, err := helper.DecodeCloudProfileConfig(cluster.CloudProfile)
if err != nil {
return err
}
infrastructureConfig := &metalv1alpha1.InfrastructureConfig{}
err = helper.DecodeRawExtension(cluster.Shoot.Spec.Provider.InfrastructureConfig, infrastructureConfig, m.decoder)
if err != nil {
return err
}
_, p, err := helper.FindMetalControlPlane(cloudProfileConfig, infrastructureConfig.PartitionID)
if err != nil {
return err
}
controlPlaneConfig := &metalv1alpha1.ControlPlaneConfig{}
err = helper.DecodeRawExtension(cluster.Shoot.Spec.Provider.ControlPlaneConfig, controlPlaneConfig, m.decoder)
if err != nil {
return err
}
if controlPlaneConfig.NetworkAccessType == nil || *controlPlaneConfig.NetworkAccessType == metalv1alpha1.NetworkAccessBaseline {
// this shoot does not have networkaccesstype restricted or forbidden specified, nothing to do here
return nil
}
if p.NetworkIsolation == nil {
return nil
}
var mirrors []metalv1alpha1.RegistryMirror
for _, m := range p.NetworkIsolation.RegistryMirrors {
m := m
mirrors = append(mirrors, metalv1alpha1.RegistryMirror{
Name: m.Name,
Endpoint: m.Endpoint,
IP: m.IP,
Port: m.Port,
MirrorOf: m.MirrorOf,
})
}
encoded, err := helper.EncodeRawExtension(&metalv1alpha1.ImageProviderConfig{
TypeMeta: v1.TypeMeta{
Kind: "ImageProviderConfig",
APIVersion: metalv1alpha1.SchemeGroupVersion.String(),
},
NetworkIsolation: &metalv1alpha1.NetworkIsolation{
AllowedNetworks: metalv1alpha1.AllowedNetworks{
Ingress: p.NetworkIsolation.AllowedNetworks.Ingress,
Egress: p.NetworkIsolation.AllowedNetworks.Egress,
},
DNSServers: p.NetworkIsolation.DNSServers,
NTPServers: p.NetworkIsolation.NTPServers,
RegistryMirrors: mirrors,
},
})
if err != nil {
return err
}
osc.Spec.ProviderConfig = encoded
return nil
}