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data.go
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data.go
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/*
Copyright 2020 The Kubermatic Kubernetes Platform contributors.
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 openshift
import (
"context"
"crypto/ecdsa"
"crypto/x509"
"encoding/json"
"errors"
"fmt"
"strings"
"github.com/kubermatic/kubermatic/api/pkg/controller/seed-controller-manager/openshift/resources"
kubermaticv1 "github.com/kubermatic/kubermatic/api/pkg/crd/kubermatic/v1"
"github.com/kubermatic/kubermatic/api/pkg/provider"
kubernetesresources "github.com/kubermatic/kubermatic/api/pkg/resources"
"github.com/kubermatic/kubermatic/api/pkg/resources/certificates/triple"
providerconfig "github.com/kubermatic/machine-controller/pkg/providerconfig/types"
kerrors "k8s.io/apimachinery/pkg/api/errors"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/resource"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
certutil "k8s.io/client-go/util/cert"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// openshiftData implements the openshiftData interface which is
// passed into all creator funcs and contains all data they need
type openshiftData struct {
cluster *kubermaticv1.Cluster
client client.Client
dc *kubermaticv1.Datacenter
overwriteRegistry string
nodeAccessNetwork string
oidc OIDCConfig
etcdDiskSize resource.Quantity
kubermaticImage string
dnatControllerImage string
supportsFailureDomainZoneAntiAffinity bool
externalURL string
seed *kubermaticv1.Seed
}
func (od *openshiftData) DC() *kubermaticv1.Datacenter {
return od.dc
}
func (od *openshiftData) GetOpenVPNCA() (*kubernetesresources.ECDSAKeyPair, error) {
return od.GetOpenVPNCAWithContext(context.TODO())
}
func (od *openshiftData) GetOpenVPNCAWithContext(ctx context.Context) (*kubernetesresources.ECDSAKeyPair, error) {
caCertSecret := &corev1.Secret{}
if err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, kubernetesresources.OpenVPNCASecretName), caCertSecret); err != nil {
return nil, fmt.Errorf("failed to get OpenVPN CA: %v", err)
}
certs, err := certutil.ParseCertsPEM(caCertSecret.Data[kubernetesresources.CACertSecretKey])
if err != nil {
return nil, fmt.Errorf("got an invalid cert from the CA secret %s: %v", kubernetesresources.CASecretName, err)
}
if len(certs) != 1 {
return nil, fmt.Errorf("did not find exactly one but %v certificates in the CA secret", len(certs))
}
key, err := triple.ParsePrivateKeyPEM(caCertSecret.Data[kubernetesresources.CAKeySecretKey])
if err != nil {
return nil, fmt.Errorf("got an invalid private key from the CA secret %s: %v", kubernetesresources.CASecretName, err)
}
ecdsaKey, isECDSAKey := key.(*ecdsa.PrivateKey)
if !isECDSAKey {
return nil, errors.New("key is not a ECDSA key")
}
return &kubernetesresources.ECDSAKeyPair{Cert: certs[0], Key: ecdsaKey}, nil
}
func (od *openshiftData) GetRootCA() (*triple.KeyPair, error) {
return od.GetRootCAWithContext(context.Background())
}
func (od *openshiftData) GetRootCAWithContext(ctx context.Context) (*triple.KeyPair, error) {
secret := &corev1.Secret{}
if err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, kubernetesresources.CASecretName), secret); err != nil {
return nil, fmt.Errorf("failed to get cluster ca: %v", err)
}
return triple.ParseRSAKeyPair(secret.Data[kubernetesresources.CACertSecretKey],
secret.Data[kubernetesresources.CAKeySecretKey])
}
func (od *openshiftData) GetFrontProxyCA() (*triple.KeyPair, error) {
return od.GetFrontProxyCAWithContext(context.TODO())
}
func (od *openshiftData) GetFrontProxyCAWithContext(ctx context.Context) (*triple.KeyPair, error) {
secret := &corev1.Secret{}
if err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, kubernetesresources.FrontProxyCASecretName), secret); err != nil {
return nil, fmt.Errorf("failed to get FrontProxy CA: %v", err)
}
return triple.ParseRSAKeyPair(secret.Data[kubernetesresources.CACertSecretKey],
secret.Data[kubernetesresources.CAKeySecretKey])
}
func (od *openshiftData) ImageRegistry(registry string) string {
if od.overwriteRegistry != "" {
return od.overwriteRegistry
}
return registry
}
func (od *openshiftData) NodeAccessNetwork() string {
if od.nodeAccessNetwork != "" {
return od.nodeAccessNetwork
}
return "10.254.0.0/16"
}
func (od *openshiftData) GetClusterRef() metav1.OwnerReference {
gv := kubermaticv1.SchemeGroupVersion
return *metav1.NewControllerRef(od.cluster, gv.WithKind("Cluster"))
}
func (od *openshiftData) ClusterIPByServiceName(name string) (string, error) {
service := &corev1.Service{}
if err := od.client.Get(context.TODO(), nn(od.cluster.Status.NamespaceName, name), service); err != nil {
return "", fmt.Errorf("failed to get service %s: %v", name, err)
}
return service.Spec.ClusterIP, nil
}
func (od *openshiftData) secretRevision(ctx context.Context, name string) (string, error) {
secret := &corev1.Secret{}
if err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, name), secret); err != nil {
if kerrors.IsNotFound(err) {
// "-1" is not allowed, label values must start and end with an alphanumeric character
return "1-1", nil
}
return "", fmt.Errorf("failed to get secret %s: %v", name, err)
}
return secret.ResourceVersion, nil
}
func (od *openshiftData) configmapRevision(ctx context.Context, name string) (string, error) {
configMap := &corev1.ConfigMap{}
if err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, name), configMap); err != nil {
return "", fmt.Errorf("failed to get configmap %s: %v", name, err)
}
return configMap.ResourceVersion, nil
}
func (od *openshiftData) Cluster() *kubermaticv1.Cluster {
return od.cluster
}
func (od *openshiftData) GetPodTemplateLabels(appName string, volumes []corev1.Volume, additionalLabels map[string]string) (map[string]string, error) {
return od.GetPodTemplateLabelsWithContext(context.TODO(), appName, volumes, additionalLabels)
}
func (od *openshiftData) GetPodTemplateLabelsWithContext(ctx context.Context, appName string, volumes []corev1.Volume, additionalLabels map[string]string) (map[string]string, error) {
podLabels := kubernetesresources.AppClusterLabels(appName, od.cluster.Name, additionalLabels)
for _, v := range volumes {
if v.VolumeSource.Secret != nil {
revision, err := od.secretRevision(ctx, v.VolumeSource.Secret.SecretName)
if err != nil {
return nil, err
}
podLabels[fmt.Sprintf("%s-secret-revision", v.VolumeSource.Secret.SecretName)] = revision
}
if v.VolumeSource.ConfigMap != nil {
revision, err := od.configmapRevision(ctx, v.VolumeSource.ConfigMap.Name)
if err != nil {
return nil, err
}
podLabels[fmt.Sprintf("%s-configmap-revision", v.VolumeSource.ConfigMap.Name)] = revision
}
}
return podLabels, nil
}
func (od *openshiftData) GetApiserverExternalNodePort(ctx context.Context) (int32, error) {
service := &corev1.Service{}
err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, kubernetesresources.ApiserverExternalServiceName), service)
if err != nil {
return 0, fmt.Errorf("failed to get apiservice for cluster %s: %v", od.cluster.Name, err)
}
if portLen := len(service.Spec.Ports); portLen != 1 {
return 0, fmt.Errorf("expected service %s to have exactly one port but has %d",
kubernetesresources.ApiserverExternalServiceName, portLen)
}
return service.Spec.Ports[0].NodePort, nil
}
func (od *openshiftData) NodePortRange(_ context.Context) string {
//TODO: softcode this
return "30000-32767"
}
func (od *openshiftData) GetOpenVPNServerPort() (int32, error) {
ctx := context.Background()
service := &corev1.Service{}
err := od.client.Get(ctx, nn(od.cluster.Status.NamespaceName, kubernetesresources.OpenVPNServerServiceName), service)
if err != nil {
return 0, fmt.Errorf("failed to get apiservice for cluster %s: %v", od.cluster.Name, err)
}
if portLen := len(service.Spec.Ports); portLen != 1 {
return 0, fmt.Errorf("expected service %s to have exactly one port but has %d", kubernetesresources.OpenVPNServerServiceName, portLen)
}
return service.Spec.Ports[0].NodePort, nil
}
// GetDexCA returns the chain of public certificates of the Dex
func (od *openshiftData) GetDexCA() ([]*x509.Certificate, error) {
return kubernetesresources.GetDexCAFromFile(od.oidc.CAFile)
}
// We didn't have openshift at the time we used the Etcd operator so
// we can safely assume it doesn't exist
// We must keep this in the etcd creators data for eternity thought, thats
// why its implemented here
func (od *openshiftData) HasEtcdOperatorService() (bool, error) {
return false, nil
}
func (od *openshiftData) EtcdDiskSize() resource.Quantity {
return od.etcdDiskSize
}
// Openshift has its own DNS cache, so this is always false
func (od *openshiftData) NodeLocalDNSCacheEnabled() bool {
return false
}
func (od *openshiftData) KubermaticAPIImage() string {
apiImageSplit := strings.Split(od.kubermaticImage, "/")
var registry, imageWithoutRegistry string
if len(apiImageSplit) != 3 {
registry = "docker.io"
imageWithoutRegistry = strings.Join(apiImageSplit, "/")
} else {
registry = apiImageSplit[0]
imageWithoutRegistry = strings.Join(apiImageSplit[1:], "/")
}
return od.ImageRegistry(registry) + "/" + imageWithoutRegistry
}
func (od *openshiftData) GetGlobalSecretKeySelectorValue(configVar *providerconfig.GlobalSecretKeySelector, key string) (string, error) {
return provider.SecretKeySelectorValueFuncFactory(context.Background(), od.client)(configVar, key)
}
func (od *openshiftData) DNATControllerImage() string {
dnatControllerImageSplit := strings.Split(od.dnatControllerImage, "/")
var registry, imageWithoutRegistry string
if len(dnatControllerImageSplit) != 3 {
registry = "docker.io"
imageWithoutRegistry = strings.Join(dnatControllerImageSplit, "/")
} else {
registry = dnatControllerImageSplit[0]
imageWithoutRegistry = strings.Join(dnatControllerImageSplit[1:], "/")
}
return od.ImageRegistry(registry) + "/" + imageWithoutRegistry
}
func (od *openshiftData) SupportsFailureDomainZoneAntiAffinity() bool {
return od.supportsFailureDomainZoneAntiAffinity
}
func (od *openshiftData) GetOauthExternalNodePort() (int32, error) {
svc := &corev1.Service{}
name := types.NamespacedName{Namespace: od.cluster.Status.NamespaceName, Name: resources.OauthName}
if err := od.client.Get(context.Background(), name, svc); err != nil {
return 0, fmt.Errorf("failed to get service: %v", err)
}
if n := len(svc.Spec.Ports); n != 1 {
return 0, fmt.Errorf("expected service to have exactly one port, had %d", n)
}
return svc.Spec.Ports[0].NodePort, nil
}
func (od *openshiftData) ExternalURL() string {
return od.externalURL
}
func (od *openshiftData) GetKubernetesCloudProviderName() string {
return kubernetesresources.GetKubernetesCloudProviderName(od.Cluster())
}
func (od *openshiftData) CloudCredentialSecretTemplate() ([]byte, error) {
// TODO: Support more providers than just AWS :)
if od.Cluster().Spec.Cloud.AWS == nil {
return nil, nil
}
credentials, err := kubernetesresources.GetCredentials(od)
if err != nil {
return nil, fmt.Errorf("failed to get credentials: %v", err)
}
secret := &corev1.Secret{
ObjectMeta: metav1.ObjectMeta{
// https://github.com/openshift/cloud-credential-operator/blob/ec6f38d73a7921e79d0ca7555da3a864e808e681/pkg/aws/actuator/actuator.go#L51
Name: "aws-creds",
},
// https://github.com/openshift/cloud-credential-operator/blob/ec6f38d73a7921e79d0ca7555da3a864e808e681/pkg/aws/actuator/actuator.go#L671-L682
Data: map[string][]byte{
"aws_access_key_id": []byte(credentials.AWS.AccessKeyID),
"aws_secret_access_key": []byte(credentials.AWS.SecretAccessKey),
},
}
serializedSecret, err := json.Marshal(secret)
if err != nil {
return nil, fmt.Errorf("failed to marshal secret: %v", err)
}
return serializedSecret, nil
}
func (od *openshiftData) Seed() *kubermaticv1.Seed {
return od.seed
}