/
helpers.go
135 lines (112 loc) · 3.77 KB
/
helpers.go
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package operator
import (
"context"
"fmt"
"reflect"
"github.com/mowirth/htpasswd-operator/pkg/apis/htpasswduser/v1"
"github.com/sirupsen/logrus"
corev1 "k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
)
// retrieve a username from the cluster.
// We allow reading from secrets, configMaps or directly from the value.
func (s *HtpasswdOperator) retrieveKeySource(ctx context.Context, ref *KeySource) (string, error) {
if ref == nil {
return "", fmt.Errorf("no user or no specification provided, skipping. (User: %v)", ref)
}
if ref.SecretKeyRef != nil {
return s.retrieveSecretKey(ctx, ref)
}
if ref.ConfigMapRef != nil {
return s.retrieveConfigKey(ctx, ref)
}
return ref.Value, nil
}
// updates the status of the HtpasswdUser in Kubernetes
func (s *HtpasswdOperator) updateHtpasswdUserStatus(ctx context.Context, htpasswdUser *v1.HtpasswdUser, userErr error) {
if htpasswdUser.Status == nil {
htpasswdUser.Status = &v1.HtpasswdUserStatus{}
}
htpasswdUser.Status.ObservedGeneration = htpasswdUser.ObjectMeta.Generation
updateHtpasswdUsersStatusConditions(htpasswdUser.Status, userErr)
if _, err := s.htpasswdUserClient.HtpasswdUsers(htpasswdUser.Namespace).UpdateStatus(ctx, htpasswdUser, metav1.UpdateOptions{}); err != nil {
logrus.Errorf("Failed to update status for user %v: %v", htpasswdUser.Name, err)
}
}
func updateHtpasswdUsersStatusConditions(st *v1.HtpasswdUserStatus, err error) {
cond := func() *v1.HtpasswdUserCondition {
for i := range st.Conditions {
if st.Conditions[i].Type == v1.HtpasswdUserConfigured {
return &st.Conditions[i]
}
}
st.Conditions = append(st.Conditions, v1.HtpasswdUserCondition{
Type: v1.HtpasswdUserConfigured,
})
return &st.Conditions[len(st.Conditions)-1]
}()
var status corev1.ConditionStatus
if err == nil {
status = corev1.ConditionTrue
cond.Message = ""
} else {
status = corev1.ConditionFalse
cond.Message = err.Error()
}
cond.LastUpdateTime = metav1.Now()
if cond.Status != status {
cond.LastTransitionTime = cond.LastUpdateTime
cond.Status = status
}
}
// check if the htpasswduser itself was updated
func htpasswdUserChanged(oldObj, newObj interface{}) bool {
oldUser, err := convertHtpasswdUser(oldObj)
if err != nil {
return true // any conversion error means we assume it might have changed
}
newUser, err := convertHtpasswdUser(newObj)
if err != nil {
return true
}
return !reflect.DeepEqual(oldUser.Spec, newUser.Spec)
}
// convertHtpasswdUser converts a kubernetes object into a typed HtpasswdUser
func convertHtpasswdUser(obj interface{}) (*v1.HtpasswdUser, error) {
htpasswdUser, ok := (obj).(*v1.HtpasswdUser)
if !ok {
return nil, fmt.Errorf("failed to cast %v into HtpasswdUser", obj)
}
if htpasswdUser.APIVersion == "" || htpasswdUser.Kind == "" {
gv := schema.GroupVersion{Group: v1.GroupName, Version: v1.GroupVersion}
gvk := gv.WithKind("HtpasswdUser")
htpasswdUser.APIVersion = gvk.GroupVersion().String()
htpasswdUser.Kind = gvk.Kind
}
return htpasswdUser, nil
}
func getKeySourceForReference(namespace string, ref v1.ReferenceOrValue) *KeySource {
keySource := &KeySource{Namespace: namespace}
if ref.SecretKeyRef != nil {
keySource.SecretKeyRef = ref.SecretKeyRef
return keySource
}
if ref.ConfigMapRef != nil {
keySource.ConfigMapRef = ref.ConfigMapRef
return keySource
}
if ref.Value != "" {
keySource.Value = ref.Value
}
return keySource
}
// Get a CredentialReference from the User
func getCredentialReferenceForUser(user *v1.HtpasswdUser) *CredentialReference {
userRef := getKeySourceForReference(user.Namespace, user.Spec.Username)
secretRef := getKeySourceForReference(user.Namespace, user.Spec.Password)
return &CredentialReference{
Username: userRef,
Password: secretRef,
}
}