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registry_operator.go
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registry_operator.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 resources
import (
"fmt"
"github.com/kubermatic/kubermatic/api/pkg/resources"
"github.com/kubermatic/kubermatic/api/pkg/resources/apiserver"
"github.com/kubermatic/kubermatic/api/pkg/resources/reconciling"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/util/sets"
utilpointer "k8s.io/utils/pointer"
)
const (
openshiftRegistryOperatorName = "openshift-registry-operator"
// RegistryNamespaceName is the name in which the registry is getting created by the openshift registry operator
RegistryNamespaceName = "openshift-image-registry"
)
func RegistryOperatorFactory(data openshiftData) reconciling.NamedDeploymentCreatorGetter {
return func() (string, reconciling.DeploymentCreator) {
return openshiftRegistryOperatorName, func(d *appsv1.Deployment) (*appsv1.Deployment, error) {
image, err := clusterImageRegistryOperatorImage(data.Cluster().Spec.Version.String(), data.ImageRegistry(""))
if err != nil {
return nil, err
}
env, err := registryOperatorEnv(data)
if err != nil {
return nil, err
}
env = append(env, corev1.EnvVar{
Name: "KUBECONFIG",
Value: "/etc/kubernetes/kubeconfig/kubeconfig",
})
d.Spec.Selector = &metav1.LabelSelector{
MatchLabels: resources.BaseAppLabels(openshiftRegistryOperatorName, nil),
}
d.Spec.Template.Spec.ImagePullSecrets = []corev1.LocalObjectReference{
{Name: openshiftImagePullSecretName},
}
d.Spec.Template.Spec.AutomountServiceAccountToken = utilpointer.BoolPtr(false)
d.Spec.Template.Spec.DNSPolicy, d.Spec.Template.Spec.DNSConfig, err = resources.UserClusterDNSPolicyAndConfig(data)
if err != nil {
return nil, err
}
d.Spec.Template.Spec.Containers = []corev1.Container{{
Name: openshiftRegistryOperatorName,
Image: image,
Env: env,
Command: []string{"cluster-image-registry-operator"},
VolumeMounts: []corev1.VolumeMount{{
Name: resources.InternalUserClusterAdminKubeconfigSecretName,
MountPath: "/etc/kubernetes/kubeconfig",
}},
}}
d.Spec.Template.Spec.Volumes = []corev1.Volume{
{
// TODO: Properly limit this instead of just using cluster-admin
Name: resources.InternalUserClusterAdminKubeconfigSecretName,
VolumeSource: corev1.VolumeSource{
Secret: &corev1.SecretVolumeSource{
SecretName: resources.InternalUserClusterAdminKubeconfigSecretName,
},
},
},
}
d.Spec.Template.Labels, err = data.GetPodTemplateLabels(openshiftRegistryOperatorName, d.Spec.Template.Spec.Volumes, nil)
if err != nil {
return nil, err
}
wrappedPodSpec, err := apiserver.IsRunningWrapper(data, d.Spec.Template.Spec, sets.NewString(openshiftRegistryOperatorName), "Config,imageregistry.operator.openshift.io/v1")
if err != nil {
return nil, fmt.Errorf("failed to add apiserver.IsRunningWrapper: %v", err)
}
d.Spec.Template.Spec = *wrappedPodSpec
return d, nil
}
}
}
func registryOperatorEnv(data openshiftData) ([]corev1.EnvVar, error) {
openshiftVersion := data.Cluster().Spec.Version.String()
image, err := dockerRegistryImage(openshiftVersion, data.ImageRegistry(""))
if err != nil {
return nil, err
}
return []corev1.EnvVar{
{
Name: "RELEASE_VERSION",
Value: openshiftVersion,
},
{
Name: "WATCH_NAMESPACE",
Value: RegistryNamespaceName,
},
{
Name: "OPERATOR_NAME",
Value: "cluster-image-registry-operator",
},
{
Name: "IMAGE",
Value: image,
},
}, nil
}