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valuesprovider.go
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valuesprovider.go
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package controlplane
import (
"context"
"fmt"
"strings"
"github.com/gardener/gardener/extensions/pkg/util"
"github.com/metal-stack/metal-go/api/models"
"github.com/metal-stack/metal-lib/pkg/tag"
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
"sigs.k8s.io/controller-runtime/pkg/manager"
"path/filepath"
gardenerkubernetes "github.com/gardener/gardener/pkg/client/kubernetes"
durosv1 "github.com/metal-stack/duros-controller/api/v1"
firewallv1 "github.com/metal-stack/firewall-controller/api/v1"
extensionscontroller "github.com/gardener/gardener/extensions/pkg/controller"
"github.com/gardener/gardener/extensions/pkg/controller/controlplane/genericactuator"
"github.com/gardener/gardener/pkg/utils"
"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/apis/metal/helper"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/imagevector"
metalclient "github.com/metal-stack/gardener-extension-provider-metal/pkg/metal/client"
metalgo "github.com/metal-stack/metal-go"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal/validation"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/metal"
corev1 "k8s.io/api/core/v1"
networkingv1 "k8s.io/api/networking/v1"
policyv1beta1 "k8s.io/api/policy/v1beta1"
storagev1 "k8s.io/api/storage/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/intstr"
apierrors "k8s.io/apimachinery/pkg/api/errors"
kutil "github.com/gardener/gardener/pkg/utils/kubernetes"
v1alpha1constants "github.com/gardener/gardener/pkg/apis/core/v1alpha1/constants"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/utils/chart"
"github.com/gardener/gardener/pkg/utils/secrets"
"github.com/go-logr/logr"
"github.com/pkg/errors"
appsv1 "k8s.io/api/apps/v1"
rbacv1 "k8s.io/api/rbac/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apiserver/pkg/authentication/user"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
"sigs.k8s.io/controller-runtime/pkg/client"
)
var controlPlaneSecrets = &secrets.Secrets{
CertificateSecretConfigs: map[string]*secrets.CertificateSecretConfig{
v1alpha1constants.SecretNameCACluster: {
Name: v1alpha1constants.SecretNameCACluster,
CommonName: "kubernetes",
CertType: secrets.CACert,
},
},
SecretConfigsFunc: func(cas map[string]*secrets.Certificate, clusterName string) []secrets.ConfigInterface {
return []secrets.ConfigInterface{
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.CloudControllerManagerDeploymentName,
CommonName: "system:cloud-controller-manager",
Organization: []string{user.SystemPrivilegedGroup},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: v1alpha1constants.DeploymentNameKubeAPIServer,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.DurosControllerDeploymentName,
CommonName: "system:duros-controller",
DNSNames: kutil.DNSNamesForService(metal.DurosControllerDeploymentName, clusterName),
Organization: []string{user.SystemPrivilegedGroup},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: v1alpha1constants.DeploymentNameKubeAPIServer,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.AudittailerClientSecretName,
CommonName: "audittailer",
DNSNames: []string{"audittailer"},
Organization: []string{"audittailer-client"},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: v1alpha1constants.DeploymentNameKubeAPIServer,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.GroupRolebindingControllerName,
CommonName: "system:group-rolebinding-controller",
Organization: []string{user.SystemPrivilegedGroup},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: v1alpha1constants.DeploymentNameKubeAPIServer,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.AuthNWebhookServerName,
CommonName: metal.AuthNWebhookDeploymentName,
DNSNames: kutil.DNSNamesForService(metal.AuthNWebhookDeploymentName, clusterName),
CertType: secrets.ServerCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.AccountingExporterName,
CommonName: "system:accounting-exporter",
// Groupname of user
Organization: []string{metal.AccountingExporterName},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: v1alpha1constants.DeploymentNameKubeAPIServer,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.CloudControllerManagerServerName,
CommonName: metal.CloudControllerManagerDeploymentName,
DNSNames: kutil.DNSNamesForService(metal.CloudControllerManagerDeploymentName, clusterName),
CertType: secrets.ServerCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
},
}
},
}
var configChart = &chart.Chart{
Name: "config",
Path: filepath.Join(metal.InternalChartsPath, "cloud-provider-config"),
Images: []string{},
Objects: []*chart.Object{},
}
var controlPlaneChart = &chart.Chart{
Name: "control-plane",
Path: filepath.Join(metal.InternalChartsPath, "control-plane"),
Images: []string{metal.CCMImageName},
Objects: []*chart.Object{
// cloud controller manager
{Type: &corev1.Service{}, Name: "cloud-controller-manager"},
{Type: &appsv1.Deployment{}, Name: "cloud-controller-manager"},
// network policies
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-dns"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-any"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-http"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-https"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-ntp"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-vpn"},
},
}
var cpShootChart = &chart.Chart{
Name: "shoot-control-plane",
Path: filepath.Join(metal.InternalChartsPath, "shoot-control-plane"),
Images: []string{metal.DroptailerImageName, metal.MetallbSpeakerImageName, metal.MetallbControllerImageName},
Objects: []*chart.Object{
// metallb
{Type: &corev1.Namespace{}, Name: "metallb-system"},
{Type: &policyv1beta1.PodSecurityPolicy{}, Name: "speaker"},
{Type: &corev1.ServiceAccount{}, Name: "controller"},
{Type: &corev1.ServiceAccount{}, Name: "speaker"},
{Type: &rbacv1.ClusterRole{}, Name: "metallb-system:controller"},
{Type: &rbacv1.ClusterRole{}, Name: "metallb-system:speaker"},
{Type: &rbacv1.Role{}, Name: "config-watcher"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "metallb-system:controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "metallb-system:speaker"},
{Type: &rbacv1.RoleBinding{}, Name: "config-watcher"},
{Type: &appsv1.DaemonSet{}, Name: "speaker"},
{Type: &appsv1.Deployment{}, Name: "controller"},
// network policies
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-dns"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-any"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-http"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-https"},
{Type: &networkingv1.NetworkPolicy{}, Name: "egress-allow-ntp"},
// cluster wide network policies
{Type: &firewallv1.ClusterwideNetworkPolicy{}, Name: "allow-to-http"},
{Type: &firewallv1.ClusterwideNetworkPolicy{}, Name: "allow-to-https"},
{Type: &firewallv1.ClusterwideNetworkPolicy{}, Name: "allow-to-dns"},
{Type: &firewallv1.ClusterwideNetworkPolicy{}, Name: "allow-to-ntp"},
{Type: &firewallv1.ClusterwideNetworkPolicy{}, Name: "allow-to-vpn"},
// firewall controller
{Type: &rbacv1.ClusterRole{}, Name: "system:firewall-controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:firewall-controller"},
{Type: &firewallv1.Firewall{}, Name: "firewall"},
// firewall policy controller TODO can be removed in a future version
{Type: &rbacv1.ClusterRole{}, Name: "system:firewall-policy-controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:firewall-policy-controller"},
// droptailer
{Type: &appsv1.Deployment{}, Name: "droptailer"},
// ccm
{Type: &rbacv1.ClusterRole{}, Name: "system:controller:cloud-node-controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:controller:cloud-node-controller"},
{Type: &rbacv1.ClusterRole{}, Name: "cloud-controller-manager"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "cloud-controller-manager"},
// node-init
{Type: &corev1.ServiceAccount{}, Name: "node-init"},
{Type: &policyv1beta1.PodSecurityPolicy{}, Name: "node-init"},
{Type: &rbacv1.ClusterRole{}, Name: "kube-system:node-init"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "kube-system:node-init"},
{Type: &appsv1.DaemonSet{}, Name: "node-init"},
},
}
var storageClassChart = &chart.Chart{
Name: "shoot-storageclasses",
Path: filepath.Join(metal.InternalChartsPath, "shoot-storageclasses"),
Images: []string{metal.CSIControllerImageName, metal.CSIProvisionerImageName},
Objects: []*chart.Object{
{Type: &corev1.Namespace{}, Name: "csi-lvm"},
{Type: &storagev1.StorageClass{}, Name: "csi-lvm"},
{Type: &corev1.ServiceAccount{}, Name: "csi-lvm-controller"},
{Type: &rbacv1.ClusterRole{}, Name: "csi-lvm-controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "csi-lvm-controller"},
{Type: &appsv1.Deployment{}, Name: "csi-lvm-controller"},
{Type: &corev1.ServiceAccount{}, Name: "csi-lvm-reviver"},
{Type: &rbacv1.Role{}, Name: "csi-lvm-reviver"},
{Type: &rbacv1.RoleBinding{}, Name: "csi-lvm-reviver"},
{Type: &policyv1beta1.PodSecurityPolicy{}, Name: "csi-lvm-reviver-psp"},
{Type: &rbacv1.Role{}, Name: "csi-lvm-reviver-psp"},
{Type: &rbacv1.RoleBinding{}, Name: "csi-lvm-reviver-psp"},
{Type: &appsv1.DaemonSet{}, Name: "csi-lvm-reviver"},
},
}
type networkMap map[string]*models.V1NetworkResponse
// NewValuesProvider creates a new ValuesProvider for the generic actuator.
func NewValuesProvider(mgr manager.Manager, logger logr.Logger, controllerConfig config.ControllerConfiguration) genericactuator.ValuesProvider {
if controllerConfig.Auth.Enabled {
configChart.Objects = append(configChart.Objects, []*chart.Object{
{Type: &corev1.ConfigMap{}, Name: "authn-webhook-config"},
}...)
controlPlaneChart.Images = append(controlPlaneChart.Images, []string{
metal.AuthNWebhookImageName,
metal.GroupRolebindingControllerImageName,
}...)
controlPlaneChart.Objects = append(controlPlaneChart.Objects, []*chart.Object{
// authn webhook
{Type: &appsv1.Deployment{}, Name: "kube-jwt-authn-webhook"},
{Type: &corev1.Service{}, Name: "kube-jwt-authn-webhook"},
{Type: &networkingv1.NetworkPolicy{}, Name: "kubeapi2kube-jwt-authn-webhook"},
{Type: &networkingv1.NetworkPolicy{}, Name: "kube-jwt-authn-webhook-allow-namespace"},
// group rolebinding controller
{Type: &appsv1.Deployment{}, Name: "group-rolebinding-controller"},
}...)
cpShootChart.Objects = append(cpShootChart.Objects, []*chart.Object{
// group rolebinding controller
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:group-rolebinding-controller"},
}...)
}
if controllerConfig.AccountingExporter.Enabled {
controlPlaneChart.Images = append(controlPlaneChart.Images, []string{metal.AccountingExporterImageName}...)
controlPlaneChart.Objects = append(controlPlaneChart.Objects, []*chart.Object{
// accounting exporter
{Type: &corev1.Secret{}, Name: "accounting-exporter-tls"},
{Type: &appsv1.Deployment{}, Name: "accounting-exporter"},
}...)
cpShootChart.Objects = append(cpShootChart.Objects, []*chart.Object{
// accounting controller
{Type: &rbacv1.ClusterRole{}, Name: "system:accounting-exporter"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:accounting-exporter"},
}...)
}
if controllerConfig.Storage.Duros.Enabled {
controlPlaneChart.Images = append(controlPlaneChart.Images, []string{metal.DurosControllerImageName}...)
controlPlaneChart.Objects = append(controlPlaneChart.Objects, []*chart.Object{
// duros storage
{Type: &corev1.ServiceAccount{}, Name: "duros-controller"},
{Type: &rbacv1.Role{}, Name: "duros-controller"},
{Type: &rbacv1.RoleBinding{}, Name: "duros-controller"},
{Type: &corev1.Secret{}, Name: "duros-admin"},
{Type: &appsv1.Deployment{}, Name: "duros-controller"},
{Type: &durosv1.Duros{}, Name: "shoot-default-storage"},
{Type: &firewallv1.ClusterwideNetworkPolicy{}, Name: "allow-to-storage"},
}...)
cpShootChart.Objects = append(cpShootChart.Objects, []*chart.Object{
{Type: &rbacv1.ClusterRole{}, Name: "system:duros-controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:duros-controller"},
}...)
}
if controllerConfig.ClusterAudit.Enabled {
configChart.Objects = append(configChart.Objects, []*chart.Object{
{Type: &corev1.ConfigMap{}, Name: "audit-policy-override"},
}...)
cpShootChart.Images = append(cpShootChart.Images, []string{metal.AudittailerImageName}...)
cpShootChart.Objects = append(cpShootChart.Objects, []*chart.Object{
// audittailer
{Type: &appsv1.Deployment{}, Name: "audittailer"},
{Type: &corev1.ConfigMap{}, Name: "audittailer-config"},
{Type: &corev1.Service{}, Name: "audittailer"},
{Type: &rbacv1.Role{}, Name: "audittailer"},
{Type: &rbacv1.RoleBinding{}, Name: "audittailer"},
}...)
}
return &valuesProvider{
mgr: mgr,
logger: logger.WithName("metal-values-provider"),
controllerConfig: controllerConfig,
}
}
// valuesProvider is a ValuesProvider that provides metal-specific values for the 2 charts applied by the generic actuator.
type valuesProvider struct {
decoder runtime.Decoder
restConfig *rest.Config
client client.Client
logger logr.Logger
controllerConfig config.ControllerConfiguration
mgr manager.Manager
}
// InjectScheme injects the given scheme into the valuesProvider.
func (vp *valuesProvider) InjectScheme(scheme *runtime.Scheme) error {
vp.decoder = serializer.NewCodecFactory(scheme).UniversalDecoder()
return nil
}
func (vp *valuesProvider) InjectConfig(restConfig *rest.Config) error {
vp.restConfig = restConfig
return nil
}
func (vp *valuesProvider) InjectClient(client client.Client) error {
vp.client = client
return nil
}
// GetConfigChartValues returns the values for the config chart applied by the generic actuator.
func (vp *valuesProvider) GetConfigChartValues(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
) (map[string]interface{}, error) {
authValues, err := vp.getAuthNConfigValues(ctx, cp, cluster)
if err != nil {
return nil, err
}
clusterAuditValues, err := vp.getClusterAuditConfigValues(ctx, cp, cluster)
if err != nil {
return nil, err
}
merge(authValues, clusterAuditValues)
return authValues, nil
}
func (vp *valuesProvider) getAuthNConfigValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster) (map[string]interface{}, error) {
namespace := cluster.ObjectMeta.Name
// this should work as the kube-apiserver is a pod in the same cluster as the kube-jwt-authn-webhook
// example https://kube-jwt-authn-webhook.shoot--local--myshootname.svc.cluster.local/authenticate
url := fmt.Sprintf("https://%s.%s.svc.cluster.local/authenticate", metal.AuthNWebhookDeploymentName, namespace)
values := map[string]interface{}{
"authnWebhook": map[string]interface{}{
"url": url,
"enabled": vp.controllerConfig.Auth.Enabled,
},
}
return values, nil
}
func (vp *valuesProvider) getClusterAuditConfigValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster) (map[string]interface{}, error) {
cpConfig, err := helper.ControlPlaneConfigFromControlPlane(cp)
if err != nil {
return nil, err
}
clusterAuditEnabled := false
if vp.controllerConfig.ClusterAudit.Enabled {
if cpConfig.FeatureGates.ClusterAudit != nil && *cpConfig.FeatureGates.ClusterAudit {
clusterAuditEnabled = true
}
}
values := map[string]interface{}{
"clusterAudit": map[string]interface{}{
"enabled": clusterAuditEnabled,
},
}
return values, nil
}
// GetControlPlaneChartValues returns the values for the control plane chart applied by the generic actuator.
func (vp *valuesProvider) GetControlPlaneChartValues(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
checksums map[string]string,
scaledDown bool,
) (map[string]interface{}, error) {
infrastructureConfig := &apismetal.InfrastructureConfig{}
if _, _, err := vp.decoder.Decode(cluster.Shoot.Spec.Provider.InfrastructureConfig.Raw, nil, infrastructureConfig); err != nil {
return nil, errors.Wrapf(err, "could not decode providerConfig of infrastructure")
}
cpConfig, err := helper.ControlPlaneConfigFromControlPlane(cp)
if err != nil {
return nil, err
}
cloudProfileConfig, err := helper.CloudProfileConfigFromCluster(cluster)
if err != nil {
return nil, err
}
metalControlPlane, _, err := helper.FindMetalControlPlane(cloudProfileConfig, infrastructureConfig.PartitionID)
if err != nil {
return nil, err
}
cpConfig.IAMConfig, err = helper.MergeIAMConfig(metalControlPlane.IAMConfig, cpConfig.IAMConfig)
if err != nil {
return nil, err
}
metalCredentials, err := metalclient.ReadCredentialsFromSecretRef(ctx, vp.client, &cp.Spec.SecretRef)
if err != nil {
return nil, err
}
mclient, err := metalclient.NewClientFromCredentials(metalControlPlane.Endpoint, metalCredentials)
if err != nil {
return nil, err
}
resp, err := mclient.NetworkList()
if err != nil {
return nil, errors.Wrap(err, "could not retrieve networks from metal-api")
}
nws := networkMap{}
for _, n := range resp.Networks {
n := n
nws[*n.ID] = n
}
// TODO: this is a workaround to speed things for the time being...
// the infrastructure controller writes the nodes cidr back into the infrastructure status, but the cluster resource does not contain it immediately
// it would need the start of another reconcilation until the node cidr can be picked up from the cluster resource
// therefore, we read it directly from the infrastructure status
infrastructure := &extensionsv1alpha1.Infrastructure{}
if err := vp.client.Get(ctx, kutil.Key(cp.Namespace, cp.Name), infrastructure); err != nil {
return nil, err
}
p, err := mclient.ProjectGet(infrastructureConfig.ProjectID)
if err != nil {
return nil, errors.Wrap(err, "could not retrieve project from metal-api")
}
chartValues, err := getCCMChartValues(cpConfig, infrastructureConfig, infrastructure, cp, cluster, checksums, scaledDown, mclient, metalControlPlane, nws)
if err != nil {
return nil, err
}
metalEndpoint := metalControlPlane.Endpoint
ma := metalAccess{
url: metalEndpoint,
hmac: metalCredentials.MetalAPIHMac,
hmacAuthType: "", // currently default is used
apiToken: metalCredentials.MetalAPIKey,
}
authValues, err := getAuthNGroupRoleChartValues(cpConfig, cluster, vp.controllerConfig.Auth, p.Project, ma)
if err != nil {
return nil, err
}
accValues, err := getAccountingExporterChartValues(ctx, vp.client, vp.controllerConfig.AccountingExporter, cluster, infrastructureConfig, p.Project)
if err != nil {
return nil, err
}
storageValues, err := getStorageControlPlaneChartValues(ctx, vp.client, vp.logger, vp.controllerConfig.Storage, cluster, infrastructureConfig, nws)
if err != nil {
return nil, err
}
merge(chartValues, authValues, accValues, storageValues)
if vp.controllerConfig.ImagePullSecret != nil {
chartValues["imagePullSecret"] = vp.controllerConfig.ImagePullSecret.DockerConfigJSON
}
return chartValues, nil
}
// merge all source maps in the target map
// hint: prevent overwriting of values due to duplicate keys by the use of prefixes
func merge(target map[string]interface{}, sources ...map[string]interface{}) {
for sIndex := range sources {
for k, v := range sources[sIndex] {
target[k] = v
}
}
}
// GetControlPlaneExposureChartValues returns the values for the control plane exposure chart applied by the generic actuator.
func (vp *valuesProvider) GetControlPlaneExposureChartValues(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster, m map[string]string) (map[string]interface{}, error) {
return nil, nil
}
// GetControlPlaneShootChartValues returns the values for the control plane shoot chart applied by the generic actuator.
func (vp *valuesProvider) GetControlPlaneShootChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster, checksums map[string]string) (map[string]interface{}, error) {
infrastructureConfig := &apismetal.InfrastructureConfig{}
if _, _, err := vp.decoder.Decode(cluster.Shoot.Spec.Provider.InfrastructureConfig.Raw, nil, infrastructureConfig); err != nil {
return nil, errors.Wrapf(err, "could not decode providerConfig of infrastructure")
}
cpConfig, err := helper.ControlPlaneConfigFromControlPlane(cp)
if err != nil {
return nil, err
}
cloudProfileConfig, err := helper.CloudProfileConfigFromCluster(cluster)
if err != nil {
return nil, err
}
metalControlPlane, _, err := helper.FindMetalControlPlane(cloudProfileConfig, infrastructureConfig.PartitionID)
if err != nil {
return nil, err
}
mclient, err := metalclient.NewClient(ctx, vp.client, metalControlPlane.Endpoint, &cp.Spec.SecretRef)
if err != nil {
return nil, err
}
resp, err := mclient.NetworkList()
if err != nil {
return nil, errors.Wrap(err, "could not retrieve networks from metal-api")
}
nws := networkMap{}
for _, n := range resp.Networks {
n := n
nws[*n.ID] = n
}
values, err := vp.getControlPlaneShootChartValues(ctx, cp, cpConfig, cluster, nws, infrastructureConfig, mclient)
if err != nil {
vp.logger.Error(err, "Error getting shoot control plane chart values")
return nil, err
}
if vp.controllerConfig.ClusterAudit.Enabled {
if cpConfig.FeatureGates.ClusterAudit != nil && *cpConfig.FeatureGates.ClusterAudit {
err = vp.deployControlPlaneShootAudittailerCerts(ctx, cp, cluster)
if err != nil {
vp.logger.Error(err, "error deploying audittailer certs")
}
}
}
err = vp.deployControlPlaneShootDroptailerCerts(ctx, cp, cluster)
if err != nil {
vp.logger.Error(err, "error deploying droptailer certs")
}
return values, nil
}
// getControlPlaneShootChartValues returns the values for the shoot control plane chart.
func (vp *valuesProvider) getControlPlaneShootChartValues(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cpConfig *apismetal.ControlPlaneConfig, cluster *extensionscontroller.Cluster, nws networkMap, infrastructure *apismetal.InfrastructureConfig, mclient *metalgo.Driver) (map[string]interface{}, error) {
namespace := cluster.ObjectMeta.Name
fwSpec, err := vp.getFirewallSpec(ctx, infrastructure, cluster, nws, mclient)
if err != nil {
return nil, errors.Wrap(err, "could not assemble firewall values")
}
err = vp.signFirewallValues(ctx, namespace, fwSpec)
if err != nil {
return nil, errors.Wrap(err, "could not sign firewall values")
}
durosValues := map[string]interface{}{
"enabled": vp.controllerConfig.Storage.Duros.Enabled,
}
clusterAuditEnabled := false
if vp.controllerConfig.ClusterAudit.Enabled {
if cpConfig.FeatureGates.ClusterAudit != nil && *cpConfig.FeatureGates.ClusterAudit {
clusterAuditEnabled = true
}
}
clusterAuditValues := map[string]interface{}{
"enabled": clusterAuditEnabled,
}
values := map[string]interface{}{
"kubernetesVersion": cluster.Shoot.Spec.Kubernetes.Version,
"firewallSpec": fwSpec,
"groupRolebindingController": map[string]interface{}{
"enabled": vp.controllerConfig.Auth.Enabled,
},
"accountingExporter": map[string]interface{}{
"enabled": vp.controllerConfig.AccountingExporter.Enabled,
},
"duros": durosValues,
"clusterAudit": clusterAuditValues,
}
if vp.controllerConfig.Storage.Duros.Enabled {
if cluster.Shoot.Spec.SeedName == nil {
return nil, fmt.Errorf("shoot resource has not seed name")
}
seedConfig, ok := vp.controllerConfig.Storage.Duros.SeedConfig[*cluster.Shoot.Spec.SeedName]
found, err := hasDurosStorageNetwork(infrastructure, nws)
if err != nil {
return nil, errors.Wrap(err, "unable to determine storage network")
}
if found && ok {
durosValues["endpoints"] = seedConfig.Endpoints
} else {
durosValues["enabled"] = false
}
}
return values, nil
}
func (vp *valuesProvider) getFirewallSpec(ctx context.Context, infrastructureConfig *apismetal.InfrastructureConfig, cluster *extensionscontroller.Cluster, nws networkMap, mclient *metalgo.Driver) (*firewallv1.FirewallSpec, error) {
internalPrefixes := []string{}
if vp.controllerConfig.AccountingExporter.Enabled && vp.controllerConfig.AccountingExporter.NetworkTraffic.Enabled {
internalPrefixes = vp.controllerConfig.AccountingExporter.NetworkTraffic.InternalNetworks
}
rateLimits := []firewallv1.RateLimit{}
for _, rateLimit := range infrastructureConfig.Firewall.RateLimits {
rateLimits = append(rateLimits, firewallv1.RateLimit{
NetworkID: rateLimit.NetworkID,
Rate: rateLimit.RateLimit,
})
}
egressRules := []firewallv1.EgressRuleSNAT{}
for _, egressRule := range infrastructureConfig.Firewall.EgressRules {
egressRules = append(egressRules, firewallv1.EgressRuleSNAT{
NetworkID: egressRule.NetworkID,
IPs: egressRule.IPs,
})
}
clusterID := string(cluster.Shoot.GetUID())
projectID := infrastructureConfig.ProjectID
firewalls, err := metalclient.FindClusterFirewalls(mclient, clusterTag(clusterID), projectID)
if err != nil {
return nil, errors.Wrap(err, "could not find firewall for cluster")
}
if len(firewalls) != 1 {
return nil, fmt.Errorf("cluster %s has %d firewalls", clusterID, len(firewalls))
}
firewall := *firewalls[0]
firewallNetworks := []firewallv1.FirewallNetwork{}
for _, n := range firewall.Allocation.Networks {
if n.Networkid == nil {
continue
}
n := n
// prefixes in the firewall machine allocation are just a snapshot when the firewall was created.
// -> when changing prefixes in the referenced network the firewall does not know about any prefix changes.
//
// we replace the prefixes from the snapshot with the actual prefixes that are currently attached to the network.
// this allows dynamic prefix reconfiguration of the firewall.
prefixes := n.Prefixes
networkRef, ok := nws[*n.Networkid]
if !ok {
vp.logger.Info("network in firewall allocation does not exist anymore")
} else {
prefixes = networkRef.Prefixes
}
firewallNetworks = append(firewallNetworks, firewallv1.FirewallNetwork{
Asn: n.Asn,
Destinationprefixes: n.Destinationprefixes,
Ips: n.Ips,
Nat: n.Nat,
Networkid: n.Networkid,
Networktype: n.Networktype,
Prefixes: prefixes,
Vrf: n.Vrf,
})
}
spec := firewallv1.FirewallSpec{
Data: firewallv1.Data{
Interval: "10s",
FirewallNetworks: firewallNetworks,
InternalPrefixes: internalPrefixes,
RateLimits: rateLimits,
EgressRules: egressRules,
},
}
fwcv, err := validation.ValidateFirewallControllerVersion(imagevector.ImageVector(), infrastructureConfig.Firewall.ControllerVersion)
if err != nil && err != validation.ErrSpecVersionUndefined {
return nil, fmt.Errorf("could not validate firewall controller version: %w", err)
}
spec.ControllerVersion = fwcv
return &spec, nil
}
func (vp *valuesProvider) signFirewallValues(ctx context.Context, namespace string, spec *firewallv1.FirewallSpec) error {
secret, err := vp.getSecret(ctx, namespace, v1alpha1constants.SecretNameCACluster)
if err != nil {
return errors.Wrap(err, "could not find ca secret for signing firewall values")
}
privateKey, err := utils.DecodePrivateKey(secret.Data[secrets.DataKeyPrivateKeyCA])
if err != nil {
return errors.Wrap(err, "could not decode private key from ca secret for signing firewall values")
}
vp.logger.Info("signing firewall", "data", spec.Data)
signature, err := spec.Data.Sign(privateKey)
if err != nil {
return errors.Wrap(err, "could not sign firewall values")
}
spec.Signature = signature
return nil
}
func (vp *valuesProvider) deployControlPlaneShootAudittailerCerts(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster) error {
// TODO: There is actually no nice way to deploy the certs into the shoot when we want to use
// the certificate helper functions from Gardener itself...
// Maybe we can find a better solution? This is actually only for chart values...
wanted := &secrets.Secrets{
CertificateSecretConfigs: map[string]*secrets.CertificateSecretConfig{
v1alpha1constants.SecretNameCACluster: {
Name: v1alpha1constants.SecretNameCACluster,
CommonName: "kubernetes",
CertType: secrets.CACert,
},
},
SecretConfigsFunc: func(cas map[string]*secrets.Certificate, clusterName string) []secrets.ConfigInterface {
return []secrets.ConfigInterface{
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.AudittailerClientSecretName,
CommonName: "audittailer",
DNSNames: []string{"audittailer"},
Organization: []string{"audittailer-client"},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.AudittailerServerSecretName,
CommonName: "audittailer",
DNSNames: []string{"audittailer"},
Organization: []string{"audittailer-server"},
CertType: secrets.ServerCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
},
}
},
}
shootConfig, _, err := util.NewClientForShoot(ctx, vp.client, cluster.ObjectMeta.Name, client.Options{})
if err != nil {
return errors.Wrap(err, "could not create shoot client")
}
cs, err := kubernetes.NewForConfig(shootConfig)
if err != nil {
return errors.Wrap(err, "could not create shoot kubernetes client")
}
gcs, err := gardenerkubernetes.NewWithConfig(gardenerkubernetes.WithRESTConfig(shootConfig))
if err != nil {
return errors.Wrap(err, "could not create shoot Gardener client")
}
_, err = cs.CoreV1().Namespaces().Get(ctx, metal.AudittailerNamespace, metav1.GetOptions{})
if err != nil {
if apierrors.IsNotFound(err) {
ns := &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: metal.AudittailerNamespace,
},
}
_, err := cs.CoreV1().Namespaces().Create(ctx, ns, metav1.CreateOptions{})
if err != nil {
return errors.Wrap(err, "could not create audittailer namespace")
}
} else {
return errors.Wrap(err, "could not search for existence of audittailer namespace")
}
}
_, err = wanted.Deploy(ctx, cs, gcs, metal.AudittailerNamespace)
if err != nil {
return errors.Wrap(err, "could not deploy audittailer secrets to shoot cluster")
}
return nil
}
func (vp *valuesProvider) deployControlPlaneShootDroptailerCerts(ctx context.Context, cp *extensionsv1alpha1.ControlPlane, cluster *extensionscontroller.Cluster) error {
// TODO: There is actually no nice way to deploy the certs into the shoot when we want to use
// the certificate helper functions from Gardener itself...
// Maybe we can find a better solution? This is actually only for chart values...
wanted := &secrets.Secrets{
CertificateSecretConfigs: map[string]*secrets.CertificateSecretConfig{
v1alpha1constants.SecretNameCACluster: {
Name: v1alpha1constants.SecretNameCACluster,
CommonName: "kubernetes",
CertType: secrets.CACert,
},
},
SecretConfigsFunc: func(cas map[string]*secrets.Certificate, clusterName string) []secrets.ConfigInterface {
return []secrets.ConfigInterface{
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.DroptailerClientSecretName,
CommonName: "droptailer",
DNSNames: []string{"droptailer"},
Organization: []string{"droptailer-client"},
CertType: secrets.ClientCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: metal.DroptailerServerSecretName,
CommonName: "droptailer",
DNSNames: []string{"droptailer"},
Organization: []string{"droptailer-server"},
CertType: secrets.ServerCert,
SigningCA: cas[v1alpha1constants.SecretNameCACluster],
},
},
}
},
}
shootConfig, _, err := util.NewClientForShoot(ctx, vp.client, cluster.ObjectMeta.Name, client.Options{})
if err != nil {
return errors.Wrap(err, "could not create shoot client")
}
cs, err := kubernetes.NewForConfig(shootConfig)
if err != nil {
return errors.Wrap(err, "could not create shoot kubernetes client")
}
gcs, err := gardenerkubernetes.NewWithConfig(gardenerkubernetes.WithRESTConfig(shootConfig))
if err != nil {
return errors.Wrap(err, "could not create shoot Gardener client")
}
_, err = cs.CoreV1().Namespaces().Get(ctx, metal.DroptailerNamespace, metav1.GetOptions{})
if err != nil {
if apierrors.IsNotFound(err) {
ns := &corev1.Namespace{
ObjectMeta: metav1.ObjectMeta{
Name: metal.DroptailerNamespace,
},
}
_, err := cs.CoreV1().Namespaces().Create(ctx, ns, metav1.CreateOptions{})
if err != nil {
return errors.Wrap(err, "could not create droptailer namespace")
}
} else {
return errors.Wrap(err, "could not search for existence of droptailer namespace")
}
}
_, err = wanted.Deploy(ctx, cs, gcs, metal.DroptailerNamespace)
if err != nil {
return errors.Wrap(err, "could not deploy droptailer secrets to shoot cluster")
}
return nil
}
// getSecret returns the secret with the given namespace/secretName
func (vp *valuesProvider) getSecret(ctx context.Context, namespace string, secretName string) (*corev1.Secret, error) {
key := kutil.Key(namespace, secretName)
secret := &corev1.Secret{}
err := vp.mgr.GetClient().Get(ctx, key, secret)
if err != nil {
if apierrors.IsNotFound(err) {
vp.logger.Error(err, "error getting chart secret - not found")
return nil, err
}
vp.logger.Error(err, "error getting chart secret")
return nil, err
}
return secret, nil
}
// GetStorageClassesChartValues returns the values for the storage classes chart applied by the generic actuator.
func (vp *valuesProvider) GetStorageClassesChartValues(context.Context, *extensionsv1alpha1.ControlPlane, *extensionscontroller.Cluster) (map[string]interface{}, error) {
return nil, nil
}
// getCCMChartValues collects and returns the CCM chart values.
func getCCMChartValues(
cpConfig *apismetal.ControlPlaneConfig,
infrastructureConfig *apismetal.InfrastructureConfig,
infrastructure *extensionsv1alpha1.Infrastructure,
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
checksums map[string]string,
scaledDown bool,
mclient *metalgo.Driver,
mcp *apismetal.MetalControlPlane,
nws networkMap,
) (map[string]interface{}, error) {
projectID := infrastructureConfig.ProjectID
nodeCIDR := infrastructure.Status.NodesCIDR
if nodeCIDR == nil {
return nil, fmt.Errorf("nodeCIDR was not yet set by infrastructure controller")
}
privateNetwork, err := metalclient.GetPrivateNetworkFromNodeNetwork(mclient, projectID, *nodeCIDR)
if err != nil {
return nil, err
}
var defaultExternalNetwork string
if cpConfig.CloudControllerManager != nil && cpConfig.CloudControllerManager.DefaultExternalNetwork != nil {
defaultExternalNetwork = *cpConfig.CloudControllerManager.DefaultExternalNetwork
resp, err := mclient.NetworkGet(defaultExternalNetwork)
if err != nil {
return nil, errors.Wrap(err, fmt.Sprintf("could not retrieve user-given default external network: %s", defaultExternalNetwork))
}