/
team_controller.go
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/
team_controller.go
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/*
Copyright 2019 Amit Kumar Gupta.
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 controllers
import (
"context"
"github.com/go-logr/logr"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/types"
ctrl "sigs.k8s.io/controller-runtime"
"sigs.k8s.io/controller-runtime/pkg/client"
boshv1 "github.com/amitkgupta/boshv3/api/v1"
"github.com/amitkgupta/boshv3/remote-clients"
)
// TeamReconciler reconciles a Team object
type TeamReconciler struct {
client.Client
Log logr.Logger
BOSHSystemNamespace string
}
// +kubebuilder:rbac:groups=bosh.akgupta.ca,resources=teams,verbs=get;list;watch;create;update;patch;delete
// +kubebuilder:rbac:groups=bosh.akgupta.ca,resources=teams/status,verbs=get;update;patch
func (r *TeamReconciler) Reconcile(req ctrl.Request) (_ ctrl.Result, err error) {
ctx := context.Background()
log := r.Log.WithValues("team", req.NamespacedName)
var team boshv1.Team
if err = r.Get(ctx, req.NamespacedName, &team); err != nil {
log.Error(err, "unable to fetch team")
err = ignoreDoesNotExist(err)
return
}
if team.PrepareToSave(r.BOSHSystemNamespace) {
if err = r.Status().Update(ctx, &team); err != nil {
log.Error(err, "unable to save team")
return
}
}
var uc remoteclients.UAAClient
if uc, err = uaaAdminForDirector(
ctx,
log,
r.Client,
team.Status.OriginalDirector,
r.BOSHSystemNamespace,
); err != nil {
log.Error(
err,
"unable to construct UAA client for director",
"director", team.Status.OriginalDirector,
)
return
}
if err = reconcileWithUAA(ctx, log, r.Client, uc, &team); err != nil {
log.Error(err, "unable to reconcile with UAA")
return
}
return
}
func (r *TeamReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
For(&boshv1.Team{}).
Complete(r)
}
func uaaAdminForDirector(
ctx context.Context,
log logr.Logger,
c client.Client,
directorName string,
boshSystemNamespace string,
) (remoteclients.UAAClient, error) {
log = log.WithValues("director", directorName, "namespace", boshSystemNamespace)
var director boshv1.Director
if err := c.Get(
ctx,
types.NamespacedName{
Namespace: boshSystemNamespace,
Name: directorName,
},
&director,
); err != nil {
log.Error(err, "failed to get director")
return nil, err
}
var directorSecret v1.Secret
if err := c.Get(
ctx,
types.NamespacedName{
Namespace: boshSystemNamespace,
Name: director.Spec.UAAClientSecret,
},
&directorSecret,
); err != nil {
log.Error(err, "failed to get secret", "secret", director.Spec.UAAClientSecret)
return nil, err
}
return remoteclients.NewUAAClient(
director.Spec.UAAURL,
director.Spec.UAAClient,
string(directorSecret.Data["secret"]),
director.Spec.UAACACert,
)
}
func reconcileWithUAA(
ctx context.Context,
log logr.Logger,
c client.Client,
uc remoteclients.UAAClient,
ue uaaEntity,
) error {
if ue.BeingDeleted() {
if err := ue.DeleteIfExists(uc); err != nil {
log.Error(err, "failed to delete if exists in UAA")
return err
}
if err := ignoreDoesNotExist(c.Delete(ctx, &(v1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: ue.SecretName(),
Namespace: ue.SecretNamespace(),
},
}))); err != nil {
log.Error(err, "failed to delete secret", "secret", ue.SecretName(), "namespace", ue.SecretNamespace())
return err
}
if ue.EnsureNoFinalizer() {
if err := c.Update(ctx, ue); err != nil {
log.Error(err, "failed to update after ensuring no finalizer")
return err
}
}
return nil
}
if ue.EnsureFinalizer() {
if err := c.Update(ctx, ue); err != nil {
log.Error(err, "failed to update after ensuring finalizer")
return err
}
}
secret := v1.Secret{
ObjectMeta: metav1.ObjectMeta{
Name: ue.SecretName(),
Namespace: ue.SecretNamespace(),
},
Type: v1.SecretTypeOpaque,
}
secretData, err := generateSecret()
if err != nil {
log.Error(err, "failed to generate secret")
return err
} else {
secret.StringData = map[string]string{"secret": secretData}
}
if err := ignoreAlreadyExists(c.Create(ctx, &secret)); err != nil {
log.Error(err, "failed to create secret", "secret", ue.SecretName(), "namespace", ue.SecretNamespace())
return err
}
if err := ue.CreateUnlessExists(uc, secretData); err != nil {
log.Error(err, "failed to create unless exists in UAA")
return err
}
if err := c.Status().Update(ctx, ue); err != nil {
log.Error(err, "failed to update after creating unless exists in UAA")
return err
}
return nil
}