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manifests.go
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manifests.go
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/*
* 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.
*
* Copyright 2021 Red Hat, Inc.
*/
package manifests
import (
"embed"
"fmt"
"path/filepath"
appsv1 "k8s.io/api/apps/v1"
corev1 "k8s.io/api/core/v1"
rbacv1 "k8s.io/api/rbac/v1"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/kubernetes/scheme"
)
//go:embed yaml
var src embed.FS
func ServiceAccount(namespace string) (*corev1.ServiceAccount, error) {
obj, err := loadObject(filepath.Join("yaml", "serviceaccount.yaml"))
if err != nil {
return nil, err
}
sa, ok := obj.(*corev1.ServiceAccount)
if !ok {
return nil, fmt.Errorf("unexpected type, got %t", obj)
}
if namespace != "" {
sa.Namespace = namespace
}
return sa, nil
}
func ClusterRole() (*rbacv1.ClusterRole, error) {
obj, err := loadObject(filepath.Join("yaml", "clusterrole.nrt.yaml"))
if err != nil {
return nil, err
}
cr, ok := obj.(*rbacv1.ClusterRole)
if !ok {
return nil, fmt.Errorf("unexpected type, got %t", obj)
}
return cr, nil
}
func ClusterRoleBindingK8S(namespace string) (*rbacv1.ClusterRoleBinding, error) {
return loadClusterRoleBinding("clusterrolebinding.yaml", namespace)
}
func ClusterRoleBindingNRT(namespace string) (*rbacv1.ClusterRoleBinding, error) {
return loadClusterRoleBinding("clusterrolebinding.nrt.yaml", namespace)
}
func loadClusterRoleBinding(crbName, namespace string) (*rbacv1.ClusterRoleBinding, error) {
obj, err := loadObject(filepath.Join("yaml", crbName))
if err != nil {
return nil, err
}
crb, ok := obj.(*rbacv1.ClusterRoleBinding)
if !ok {
return nil, fmt.Errorf("unexpected type, got %t", obj)
}
for idx := 0; idx < len(crb.Subjects); idx++ {
crb.Subjects[idx].Namespace = namespace
}
return crb, nil
}
func ConfigMap(namespace string) (*corev1.ConfigMap, error) {
obj, err := loadObject(filepath.Join("yaml", "configmap.nrt.yaml"))
if err != nil {
return nil, err
}
cm, ok := obj.(*corev1.ConfigMap)
if !ok {
return nil, fmt.Errorf("unexpected type, got %t", obj)
}
if namespace != "" {
cm.Namespace = namespace
}
return cm, nil
}
func Deployment(namespace string) (*appsv1.Deployment, error) {
obj, err := loadObject(filepath.Join("yaml", "deployment.yaml"))
if err != nil {
return nil, err
}
dp, ok := obj.(*appsv1.Deployment)
if !ok {
return nil, fmt.Errorf("unexpected type, got %t", obj)
}
if namespace != "" {
dp.Namespace = namespace
}
return dp, nil
}
func deserializeObjectFromData(data []byte) (runtime.Object, error) {
decode := scheme.Codecs.UniversalDeserializer().Decode
obj, _, err := decode(data, nil, nil)
if err != nil {
return nil, err
}
return obj, nil
}
func loadObject(path string) (runtime.Object, error) {
data, err := src.ReadFile(path)
if err != nil {
return nil, err
}
return deserializeObjectFromData(data)
}