/
auth-builder.go
63 lines (55 loc) · 1.42 KB
/
auth-builder.go
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package jobs
import (
corev1 "k8s.io/api/core/v1"
rbacv1 "k8s.io/api/rbac/v1"
"sigs.k8s.io/yaml"
)
const (
clusterRole = "node-collector-cr"
roleBinding = "node-collector-rb"
serviceAccount = "node-collector-sa"
)
type AuthOption func(*AuthBuilder)
func WithServiceAccountNamespace(namespace string) AuthOption {
return func(a *AuthBuilder) {
a.namespace = namespace
}
}
func GetAuth(opts ...AuthOption) (*rbacv1.ClusterRole, *rbacv1.ClusterRoleBinding, *corev1.ServiceAccount, error) {
ab := &AuthBuilder{}
for _, opt := range opts {
opt(ab)
}
return ab.build()
}
type AuthBuilder struct {
namespace string
}
func (b *AuthBuilder) build() (*rbacv1.ClusterRole, *rbacv1.ClusterRoleBinding, *corev1.ServiceAccount, error) {
// load ClusterRole, ClusterRoleBinding, ServiceAccount
template := getTemplate(clusterRole)
var cr rbacv1.ClusterRole
err := yaml.Unmarshal([]byte(template), &cr)
if err != nil {
return nil, nil, nil, err
}
template = getTemplate(roleBinding)
var rb rbacv1.ClusterRoleBinding
err = yaml.Unmarshal([]byte(template), &rb)
if err != nil {
return nil, nil, nil, err
}
if len(b.namespace) > 0 {
rb.Subjects[0].Namespace = b.namespace
}
template = getTemplate(serviceAccount)
var sa corev1.ServiceAccount
err = yaml.Unmarshal([]byte(template), &sa)
if err != nil {
return nil, nil, nil, err
}
if len(b.namespace) > 0 {
sa.Namespace = b.namespace
}
return &cr, &rb, &sa, nil
}