forked from gardener-attic/gardener-extensions
/
valuesprovider.go
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/
valuesprovider.go
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// Copyright (c) 2019 SAP SE or an SAP affiliate company. All rights reserved. This file is licensed under the Apache Software License, v. 2 except as noted otherwise in the LICENSE file
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package controlplane
import (
"context"
"encoding/base64"
"path/filepath"
apispacket "github.com/gardener/gardener-extensions/controllers/provider-packet/pkg/apis/packet"
"github.com/gardener/gardener-extensions/controllers/provider-packet/pkg/packet"
extensionscontroller "github.com/gardener/gardener-extensions/pkg/controller"
"github.com/gardener/gardener-extensions/pkg/controller/controlplane/genericactuator"
"github.com/gardener/gardener-extensions/pkg/util"
gardencorev1alpha1 "github.com/gardener/gardener/pkg/apis/core/v1alpha1"
extensionsv1alpha1 "github.com/gardener/gardener/pkg/apis/extensions/v1alpha1"
"github.com/gardener/gardener/pkg/operation/common"
"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"
corev1 "k8s.io/api/core/v1"
policyv1beta1 "k8s.io/api/policy/v1beta1"
rbacv1 "k8s.io/api/rbac/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/serializer"
"k8s.io/apiserver/pkg/authentication/user"
"sigs.k8s.io/controller-runtime/pkg/client"
)
var controlPlaneSecrets = &secrets.Secrets{
CertificateSecretConfigs: map[string]*secrets.CertificateSecretConfig{
gardencorev1alpha1.SecretNameCACluster: {
Name: gardencorev1alpha1.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: packet.CloudControllerManagerImageName,
CommonName: "system:cloud-controller-manager",
Organization: []string{user.SystemPrivilegedGroup},
CertType: secrets.ClientCert,
SigningCA: cas[gardencorev1alpha1.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: common.KubeAPIServerDeploymentName,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: "csi-attacher",
CommonName: "system:csi-attacher",
Organization: []string{user.SystemPrivilegedGroup},
CertType: secrets.ClientCert,
SigningCA: cas[gardencorev1alpha1.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: common.KubeAPIServerDeploymentName,
},
},
&secrets.ControlPlaneSecretConfig{
CertificateSecretConfig: &secrets.CertificateSecretConfig{
Name: "csi-provisioner",
CommonName: "system:csi-provisioner",
Organization: []string{user.SystemPrivilegedGroup},
CertType: secrets.ClientCert,
SigningCA: cas[gardencorev1alpha1.SecretNameCACluster],
},
KubeConfigRequest: &secrets.KubeConfigRequest{
ClusterName: clusterName,
APIServerURL: common.KubeAPIServerDeploymentName,
},
},
}
},
}
var controlPlaneChart = &chart.Chart{
Name: "seed-controlplane",
Path: filepath.Join(packet.InternalChartsPath, "seed-controlplane"),
SubCharts: []*chart.Chart{
{
Name: "packet-cloud-controller-manager",
Images: []string{packet.CloudControllerManagerImageName},
Objects: []*chart.Object{
{Type: &appsv1.Deployment{}, Name: "cloud-controller-manager"},
},
},
{
Name: "csi-packet",
Images: []string{packet.CSIAttacherImageName, packet.CSIProvisionerImageName, packet.CSIPluginImageName},
Objects: []*chart.Object{
{Type: &corev1.Service{}, Name: "csi-packet-pd"},
{Type: &appsv1.StatefulSet{}, Name: "csi-packet-controller"},
},
},
},
}
var controlPlaneShootChart = &chart.Chart{
Name: "shoot-system-components",
Path: filepath.Join(packet.InternalChartsPath, "shoot-system-components"),
SubCharts: []*chart.Chart{
{
Name: "packet-cloud-controller-manager",
Objects: []*chart.Object{
{Type: &rbacv1.ClusterRole{}, Name: "system:controller:cloud-node-controller"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "system:controller:cloud-node-controller"},
},
},
{
Name: "csi-packet",
Images: []string{packet.CSINodeDriverRegistrarImageName, packet.CSIPluginImageName},
Objects: []*chart.Object{
{Type: &appsv1.DaemonSet{}, Name: "csi-node"},
{Type: &corev1.Secret{}, Name: "csi-diskplugin-packet"},
{Type: &rbacv1.ClusterRole{}, Name: "packet.com:csi-node-sa"},
{Type: &corev1.ServiceAccount{}, Name: "csi-node-sa"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "packet.com:csi-node-sa"},
{Type: &policyv1beta1.PodSecurityPolicy{}, Name: "gardener.kube-system.csi-disk-plugin-packet"},
{Type: &corev1.ServiceAccount{}, Name: "csi-attacher"},
{Type: &rbacv1.ClusterRole{}, Name: "packet.provider.extensions.gardener.cloud:kube-system:csi-attacher"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "packet.provider.extensions.gardener.cloud:csi-attacher"},
{Type: &rbacv1.Role{}, Name: "csi-attacher"},
{Type: &rbacv1.RoleBinding{}, Name: "csi-attacher"},
{Type: &corev1.ServiceAccount{}, Name: "csi-disk-plugin-packet"},
{Type: &rbacv1.ClusterRole{}, Name: "packet.provider.extensions.gardener.cloud:psp:kube-system:csi-disk-plugin-packet"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "packet.provider.extensions.gardener.cloud:psp:csi-disk-plugin-packet"},
{Type: &corev1.ServiceAccount{}, Name: "csi-provisioner"},
{Type: &rbacv1.ClusterRole{}, Name: "packet.provider.extensions.gardener.cloud:kube-system:csi-provisioner"},
{Type: &rbacv1.ClusterRoleBinding{}, Name: "packet.provider.extensions.gardener.cloud:csi-provisioner"},
},
},
},
}
// NewValuesProvider creates a new ValuesProvider for the generic actuator.
func NewValuesProvider(logger logr.Logger) genericactuator.ValuesProvider {
return &valuesProvider{
logger: logger.WithName("packet-values-provider"),
}
}
// valuesProvider is a ValuesProvider that provides Packet-specific values for the 2 charts applied by the generic actuator.
type valuesProvider struct {
decoder runtime.Decoder
client client.Client
logger logr.Logger
}
// InjectScheme injects the given scheme into the valuesProvider.
func (vp *valuesProvider) InjectScheme(scheme *runtime.Scheme) error {
vp.decoder = serializer.NewCodecFactory(scheme).UniversalDecoder()
return nil
}
// InjectClient injects the given client into the valuesProvider.
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) {
// Not needed for Packet cloud-controller-manager - it does not have a config.
return nil, 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) {
// Decode providerConfig
cpConfig := &apispacket.ControlPlaneConfig{}
if _, _, err := vp.decoder.Decode(cp.Spec.ProviderConfig.Raw, nil, cpConfig); err != nil {
return nil, errors.Wrapf(err, "could not decode providerConfig of controlplane '%s'", util.ObjectName(cp))
}
// Get control plane chart values
return getControlPlaneChartValues(cp, cluster, checksums, scaledDown)
}
// 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,
) (map[string]interface{}, error) {
// Get credentials from the referenced secret
credentials, err := vp.getCredentials(ctx, cp)
if err != nil {
return nil, err
}
// Get control plane shoot chart values
return getControlPlaneShootChartValues(cluster, credentials)
}
// getCredentials determines the credentials from the secret referenced in the ControlPlane resource.
func (vp *valuesProvider) getCredentials(
ctx context.Context,
cp *extensionsv1alpha1.ControlPlane,
) (*packet.Credentials, error) {
secret, err := extensionscontroller.GetSecretByReference(ctx, vp.client, &cp.Spec.SecretRef)
if err != nil {
return nil, errors.Wrapf(err, "could not get secret by reference for controlplane '%s'", util.ObjectName(cp))
}
credentials, err := packet.ReadCredentialsSecret(secret)
if err != nil {
return nil, errors.Wrapf(err, "could not read credentials from secret '%s'", util.ObjectName(secret))
}
return credentials, nil
}
// getCCMChartValues collects and returns the CCM chart values.
func getControlPlaneChartValues(
cp *extensionsv1alpha1.ControlPlane,
cluster *extensionscontroller.Cluster,
checksums map[string]string,
scaledDown bool,
) (map[string]interface{}, error) {
values := map[string]interface{}{
"packet-cloud-controller-manager": map[string]interface{}{
"replicas": extensionscontroller.GetControlPlaneReplicas(cluster.Shoot, scaledDown, 1),
"clusterName": cp.Namespace,
"kubernetesVersion": cluster.Shoot.Spec.Kubernetes.Version,
"podNetwork": extensionscontroller.GetPodNetwork(cluster.Shoot),
"podAnnotations": map[string]interface{}{
"checksum/secret-cloud-controller-manager": checksums[packet.CloudControllerManagerImageName],
// TODO Use constant from github.com/gardener/gardener/pkg/apis/core/v1alpha1 when available
// See https://github.com/gardener/gardener/pull/930
"checksum/secret-cloudprovider": checksums[common.CloudProviderSecretName],
},
},
"csi-packet": map[string]interface{}{
"kubernetesVersion": cluster.Shoot.Spec.Kubernetes.Version,
"regionID": cp.Spec.Region,
"podAnnotations": map[string]interface{}{
"checksum/secret-csi-attacher": checksums[packet.CSIAttacherImageName],
"checksum/secret-csi-provisioner": checksums[packet.CSIProvisionerImageName],
"checksum/secret-cloudprovider": checksums[common.CloudProviderSecretName],
},
},
}
return values, nil
}
// getControlPlaneShootChartValues collects and returns the control plane shoot chart values.
func getControlPlaneShootChartValues(
cluster *extensionscontroller.Cluster,
credentials *packet.Credentials,
) (map[string]interface{}, error) {
values := map[string]interface{}{
"csi-packet": map[string]interface{}{
"credential": map[string]interface{}{
"apiToken": base64.StdEncoding.EncodeToString([]byte(credentials.APIToken)),
"projectID": base64.StdEncoding.EncodeToString([]byte(credentials.ProjectID)),
},
"kubernetesVersion": cluster.Shoot.Spec.Kubernetes.Version,
},
}
return values, nil
}